NCV7430_17_技术文档

NCV7430

Automotive LIN RGB LED

Driver

The NCV7430 is a single−chip RGB driver intended for dedicated

multicolor LED applications. The RGB LED driver contains a LIN

interface (slave) for parametric programming of LED color and intensity.

The device receives instructions through the LIN bus and

subsequently drives the LEDs independently.

www.onsemi.com

The NCV7430 acts as a slave on the LIN bus and the master can

request specific status information (parameter values and error flags).

The LIN address of the NCV7430 can be programmed in the internal

memory of the device.

MARKING

DIAGRAM

14

The NCV7430 is fully compatible with automotive requirements.

1

NCV7430−0

AWLYWWG

PRODUCT FEATURES

SOIC−14

D2 SUFFIX

CASE 751A

LED Driver

1

• 3 Independent LED Current Regulators

• LED Currents Adjustable with External Resistors

NCV7430 = Specific Device Code

A

WL

Y

WW

G

= Assembly Location

= Wafer Lot

• Power Dissipation Option with External Ballast Transistor

Controller with One−Time−Programmable Memory (OTP)

• LED Modulation Controller for 3 LEDs

= Year

= Work Week

= Pb−Free Package

• Full LED Calibration Support

♦ Internal LED Color Calibration via Matrix Calculation

♦ Intensity Control (linear or logarithmic)

♦ Dimming and Color Transition (linear) Function

with Programmable Transition Time

PIN CONNECTIONS

1

2

3

4

5

6

7

14

13

12

11

10

9

LED3C

LED1C

LED2C

TST1

ANODE

LIN Interface

• LIN Physical Layer according to LIN 2.1/ SAE J2602

• OTP−programmable Device Node Number

• OTP−programmable Group Address

• Diagnostics and Status Information

• LIN Bus Short Circuit Protection to Supply and Ground

Protection and Diagnostics

VBIAS

VBB

LIN

GND

TST2

GND

LED2R

LED1R

LED3R

• Overcurrent Detection

• Short Circuit Detection to GND and VBB

• Open LED Detection

8

• High Temperature Warning and Shutdown

• Retry Mode on Error Detection

ORDERING INFORMATION

Power Saving

†

Device

Package

Shipping

• Sleep Mode Supply Current 10 mA

• Compliant with 14ꢀV Automotive Systems

NCV7430D20G

SOIC−14

(Pb−Free)

55 Units / Tube

EMI Compatibility

NCV7430D20R2G

SOIC−14

(Pb−Free)

3000 / Tape &

Reel

• LIN Bus Integrated Slope Control

• EMC Reduced LED Modulation Mode

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

Quality

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

• These Devices are Pb−Free and are RoHS Compliant

1

Publication Order Number:

June, 2017 − Rev. 10

NCV7430/D

NCV7430

BLOCK DIAGRAM

VBB

LIN

Optional Ballast Control

Error

VBIAS

Communication

and

LIN

ANODE

LED1C

LED2C

LED3C

Programming

LEDxC

LEDxR

Detection

modulator

325 mV

LED2R

325 mV

GND GND LED1R

LED3R

Figure 1. Simple Block Diagram

ANODE ERROR

Modulator

NCV7430

ANODE

LED1C

LED1

Analog

Error

Handler

BUS

Interface

LIN

Vref1

Vref2

OPA

D

Current−reg−

−Fet

OPEN

ERROR

LED1R

TST1

TST2

Main Control Processor,

Registers

OTP memory

LED2

LED3

LED2C

LED2R

Temp

Vref

sense

Oscillator

LED3C

LED3R

VBIAS

Voltage

Regulator

VRef

VBB

GND GND

Figure 2. Detailed Block Diagram

www.onsemi.com

2

NCV7430

MRA4003T3G

100 nF

D1

VBAT

Optional

470

C1

C2

Optional

10 nF

VBB

R1

VBIAS

3

NJD2873T4G*

2

Q1

1

ANODE

LED1C

R

13

NCV7430

LED2C

C4

1 nF

G

12

14

8

10

9

LED3C

B

LED3R

LED2R

LED1R

LIN bus

LIN

4

11

6

5

GND

7

R

1

G

2

B

3

C3

GND

TST1 TST2

Rsense

10 ohm for 30 mA

Figure 3. Typical Application with Ballast Transistor

MRA4003T3G

D1

10 nF

VBAT

100 nF

C1

C2

Optional

VBB

3

VBIAS

2

1

ANODE

LED1C

LED2C

LED3C

R

13

12

NCV7430

G

B

14

8

10

9

LED3R

LED2R

LED1R

LIN bus

C3

LIN

4

11

TST2

6

5

7

R

G

2

B

3

GND

1

TST1

Rsense

10 ohm for 30 mA

Figure 4. Typical Application without Ballast Transistor

NOTES:

C must be close to pins V and GND

1

BB

C and C is placed for EMC reasons; value depends on EMC requirements of the application

2

3

R1 and Q1 and reverse polarity protection D1 and C2 are optional.

When Q1 is not used, connect VBB to the ANODE pin. VBIAS output is kept open in this case.

Rsense_1, Rsense_2 and Rsense_3 have to be calculated for LED current settings.

“R”, “G”, “B” designators refer to the ON Semiconductor evaluation board software associations.

* For lower power applications, a PZT3904T1G device can be substituted.

RGB LED, OSRAM MULTILED LRTB GVSG or DOMINANT Multi DomiLED D6RTB−PJG

Table 1. OPERATING RANGES

Parameter

Supply voltage

Operating temperature range

Min

+5.5

−40

Max

+18

Unit

V

BB

T

+125

°C

J

www.onsemi.com

3

NCV7430

Table 2. PIN FUNCTION DESCRIPTION (14 LEAD SON Package)

Pin #

1

Label

ANODE

VBIAS

VBB

Pin Description

Anode input for LED fault detection

2

Bias output for ballast transistor

VBB (14 V) Supply Voltage

LIN−bus connection

Supply GND

3

4

LIN

5

GND

6

TST2

Test pin (ground pin)

Supply GND

7

GND

8

LED3R

LED1R

LED2R

TST1

Current program resistor to ground for LED3C

Current program resistor to ground for LED1C

Current program resistor to ground for LED2C

Test pin (float pin) (Note 1)

9

10

11

12

13

14

LED2C

LED1C

LED3C

Channel 2 regulated current output to LED cathode

Channel 1 regulated current output to LED cathode

Channel 3 regulated current output to LED cathode

1. Floating pin 11 eliminates the possibility of a short to ground of the adjacent pin (LED2C).

Table 3. MAXIMUM RATINGS

Parameter

Min

−0.3

−45

−0.3

−

Max

+43 (Note 2)

28 (Note 3)

+45

Unit

V

BB

Supply voltage

V

Vlin

Bus input voltage (LIN)

V

VVBIAS

IBIAS

Ballast Transistor Drive Voltage Pin (VBIAS)

Ballast Output Drive (VBIAS)

VANODE

10

V

mA

V

VANODE

VLEDC

VLEDR

LED Fault Sense Pin (ANODE) voltage

LED Current Pin (LEDxC) voltage (Note 7)

Program Current Pin (LEDxR) voltage (Note 4)

Junction temperature range (Note 5)

−0.3

−50

−

VBB

V

3.6

V

T

J

+175

°C

Tflw

Peak Reflow Soldering Temperature: Pb−Free

60 to 150 seconds at 217°C (Note 6)

260 peak

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be affected.

2. For limited time: t < 0.5 s.

3. t < 3 minutes

4. VLEDR cannot exceed VLEDC.

5. The circuit functionality is not fully guaranteed outside operating temperature range.

6. For additional information, see or download ON Semiconductor’s Soldering and Mounting Techniques Reference Manual, SOLDERRM/D,

and Application Note AND8003/D.

7. Capacitive loading on LEDxC pins is limited to < 200 pF for proper functionality.

Table 4. ATTRIBUTES

Characteristics

Value

ESD Capability

(Note 8)

Human Body Model (LIN Pin)

Human Body Model (All Remaining Pins)

Machine Model

> ± ±4 kV

> ± 2 kV

> ± 200 V

Moisture Sensitivity Level (Note 6)

Storage Temperature

MSL 2

−55°C to 150°C

Package Thermal Resistance

Junction−to−Ambient (R ) (2S2P) (Note 9)

100°K/W

53°K/W

q

JA

Junction−to−Pin (R ) (Pins 4 & 11)

y

JL

Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test

8. HBM according to AEC−Q100: EIA−JESD22−A114−B (100 pF via 1.5 kW) and MM according to AEC−Q100: EIA−JESD22−A115−A.

9. Simulated conform JEDEC JESD51

www.onsemi.com

4

NCV7430

Table 5. ELECTRICAL CHARACTERISTICS (5.5 V < V < 18 V, −40°C < T < 125°C, R

= 10 W TWPROG = TWPROG2 =

BB

J

sense

0, unless otherwise specified).

Symbol

Pin(s)

Characteristic

Conditions

Min

Typ

Max

Unit

LED DRIVER

LED1C

LED2C

LED3C

I

Single LED current in nor-

mal operation

V

= 14 V

−

32

96

mA

LEDmax

BB

For individual LED driven

I

All LED currents in normal

operation

V

BB

= 14 V

LEDmaxTotal

For all LEDs driven

I

LED current

Uncalibrated Max ON Duty

Cycle

LEDxC

28

2.8

30.5

3.05

32

3.2

R

= 10 W

SENSE

R

= 100 W

SENSE

I

Absolute error on LED

current

Calibrated

= 14 V,

%

MSabs

V

BB

3 mA < I

< 30 mA

= 10 W

= 100 W

LEDxC

R

−1

−3

−

1

3

SENSE

R

SENSE

V

Reference voltage for cur-

rent regulators (High)

state

V

= 14 V

−

325

−

mV

Vref1

BB

Reference voltage for cur-

rent regulators (Low) state

V

−

20

−

Vref2

LIN TRANSMITTER

LIN

I

Dominant state, driver off

Recessive state, driver off

V

BB

= 0 V,

= 8 V & 18 V

−1

−

mA

bus_off

linbus

V

I

V

linbus

= V

,

20

mA

bus_off

bat

V

= 8 V & 18 V

BB

I

Current limitation

Pull−up resistance

40

20

75

30

200

47

mA

bus_lim

BB

R

kW

slave

LIN RECEIVER

LIN

V

Receiver dominant state

Receiver recessive state

Receiver hysteresis

V

BB

V

BB

V

BB

V

BB

= 8 V & 18 V

0

−

0.4 * V

BB

V

bus_dom

V

0.6 * V

V

BB

bus_rec

BB

V

0.05 * V

0.175 * V

BB

bus_hys

BB

Vrec_th_wake

LIN wake−up threshold

V

− 1.1

V

BB

− 3.3

BB

THERMAL WARNING & SHUTDOWN

Thermal warning

T

tw

107

115

10

123

°C

(Notes 10, 11)

T

twhyst

Thermal warning hyster-

esis

−

T

tsd

Thermal shutdown

(Note 10)

147

155

163

THERMAL CONTROL

TH_Ired_step

LED Drive Current change

at Thermal Warning

−

−6.25

−

%

per

step

VBIAS OUTPUT

V

Output voltage

V

BB

= 14 V, I = 5 mA

bias

7.3

−

8.3

6.0

V

bias

VBB SUPPLY

VBB_UV

VBB Undervoltage

5.40

5.8

for LIN Communication

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

10.Parameter guaranteed by trimming in production test.

11. No more than 2000 cumulative hours in life time above Tw.

www.onsemi.com

5

NCV7430

Table 5. ELECTRICAL CHARACTERISTICS (5.5 V < V < 18 V, −40°C < T < 125°C, R

= 10 W TWPROG = TWPROG2 =

BB

J

sense

0, unless otherwise specified).

Symbol

Pin(s)

Characteristic

Conditions

Min

Typ

Max

Unit

VBB SUPPLY

VBB_UV_hys

VBB Undervoltage Hys-

teresis for LIN Communic-

ation

−

0.2

0.4

V

PORH_V

Power−on Reset for out-

put drive capability

V

Rising V

−

4.4

−

bb

Falling V

1.9

13

bb

V

BB

V

bbOTP

Supply voltage for OTP

zapping

16

V

I

Total current consumption

Unloaded outputs

= 18 V, LEDs OFF

−

5.0

10

7.0

20

mA

bat

V

BB

I

Sleep mode current con-

sumption

V

= 13.5 V, T = 85°C

BB J

bat_sleep

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

10.Parameter guaranteed by trimming in production test.

11. No more than 2000 cumulative hours in life time above Tw.

www.onsemi.com

6

NCV7430

AC PARAMETERS

The AC parameters are guaranteed for temperature and V in the operating range unless otherwise specified.

BB

The LIN transmitter and receiver physical layer parameters are compliant to LIN rev. 2.0 & 2.1.

Table 6. AC CHARACTERISTICS

Symbol

POWER−UP AND WAKE−UP

Power−up time

Pin(s)

Parameter

Test Conditions

Min

Typ

Max

Unit

t

pu

Guaranteed by design

Sleep mode

−

10

ms

t

LIN Dominant Wake−up pulse

filter time

80

150

ms

LIN_Wake

t

Reaction time after valid

Wake−up pulse

Sleep mode

−

0.3

3

1

ms

Wake

t

Sleep mode to Normal mode

transition time

t

> 150 ms

10

Sleep_to_Normal

LIN_Wake

Guaranteed by design

INTERNAL OSCILLATOR

f

Frequency of internal oscillator

V

= 14 V

1.8

2

−

2.2

−

MHz

%

osc

BB

LIN TRANSMITTER CHARACTERISTICS ACCORDING TO LIN v2.0 & v2.1

D1

D2

LIN

Duty cycle 1

= (t

TH

= 0.744 x V

= 0.581 x V

BB

39.6

Rec(max)

Dom(max)

7.0 V < V < 18 V;

BB

/ (2 x t )) x 100

;

Bus_rec(min)

Bit

See Figure 5

t

Bit

= 50ꢀms

Duty cycle 2

TH

= 0.422 x V

= 0.284 x V

−

58.1

%

Rec(min)

Dom(min)

BB

;

= (t

/ (2 x t )) x 100

Bus_rec(max)

Bit

BB

See Figure 5

7.6 V < V < 18 V;

BB

t

Bit

= 50ꢀms

LED DRIVERS

f

LEDx

LED modulation frequency for

MODFREQ = 0

117

234

122

244

127

254

Hz

LEDmodulation

LED modulation frequency for

MODFREQ = 1

t

Turn−on transient time

Between 10% and 90%

−

1

−

ms

brise

t

Turn−off transient time

bfall

I

Settling time of Current regulators

Between 10% and 90%

full scale

0.8

1.5

LED settling

THERMAL CONTROL

t

Timeout for current reduction af-

ter TW

−

10

−

s

TH_timeout

ERROR RETRY CONTROL

Intervaltime between retries

2.7

−

3

3.3

−

t

retryinterval

N

Number of retries before LEDs

are switched off definitely

20

numberofretries

www.onsemi.com

7

NCV7430

t

BUS_rec(min)

BUS_dom(max)

LIN

TH

Rec(max)

Thresholds of

receiving node 1

TH

Dom(max)

TH

Rec(min)

Thresholds of

receiving node 2

TH

Dom(min)

t

BUS_rec(max)

BUS_dom(min)

Figure 5. Timing for AC Characteristics According to LIN 2.0 and LIN 2.1

LIN

Detection of Remote Wake−Up

VBB

recessive

> t

LIN_Wake

(150 μs)

60% VBB

40% VBB

dominant

t

Wake

t

Sleep_to_Normal

Sleep mode

Init

Normal mode

Figure 6. Timing for Wake Up from Sleep Mode via LIN Bus Transitions

LIN Timing

LIN Frames must be Sent in a Regular Manner

Precise color settings for RGB LEDs is achieved using

independent current modulators. The three LED modulation

controllers have eleven bit resolution with a choice of base

frequencies of 122 Hz or 244 Hz.

The internal oscillator is adapted to an accurate frequency

based on the reception of multiple LIN synchronization

fields. Although the NCV7430 is functional without LIN

communication, the timing specifications cannot be

guaranteed without periodic error−free LIN frame inputs.

System Operation

The programmability of the NCV7430 is achieved via a

LIN bus interface. The device is operated in slave mode and

accepts lighting instruction commands from a bus master.

The physical node address of a slave can be programmed in

OTP “address bits ADx” at address 0x03: For multi node

operation the NCV7430 accepts broadcast commands. With

the broadcast command and four additional “GROUP_ID”

bits programming of up to 16 different slave clusters can be

done. In this approach each slave belongs to a specific

cluster (GROUP).

Detailed Operating Description

General

The NCV7430 is an automotive 3 channel LED driver

suitable for use in a broad range of applications. Although

designed to drive an RGB LED, it can easily be used to drive

3 independent LEDs. Each LED is driven by a constant

current source externally programmed for maximum current

using external resistors.

www.onsemi.com

8

NCV7430

Current Sources

NOTE: For the Set_Color_Short and Set_Intensity

commands the GROUP_ID bits are split. The

lower two bits are used to assign the NCV7430

to one of four groups for the color setting, while

the upper two bits are used to assign the device

to one of four groups for the intensity setting.

The NCV7430 has three independent analog current

sources driving the LEDs. The currents are programmed by

a fixed 325 mV voltage reference at the LEDxR pin. The

delta current through the resistor resulting from Vref1 −

Vref2, equals the LED drive current at the LEDxC. Each

maximum LED current (DC = Max ON) can be adjusted to

a typical value up to 30.5 mA. The external resistor can be

calculated as follows:

Power−up

The NCV7430 powers up in an active mode. Reference

the “Sleep Mode” section for low power standby conditions.

The device has a VBB Power−on Reset Level of 4.4 V,

(max) for output drive capability. Operation of the device is

guaranteed above the 4.4 V level. All integrated circuit

activity will remain off prior to breaching the 4.4 V level. All

output current sources (LEDxC), current programming pins

(LEDxR), error dection pin (ANODE), ballast drive pin

(VBIAS), and LIN communication pin (LIN) will be high

impedance below 4.4 V. The device becomes fully

operational above 4.4 V with the default parameters copied

from OTP and will operate up to 18 V.

325 mV * 20 mV

R +

(eq. 1)

I_LEDhigh

For I

= 30.5 mA the resistor is:

LEDhigh

0.305 V

0.0305 A

R +

+ 10 W

When not being modulated for color setting purposes, or

under abnormal or error conditions, the LEDs can be

switched on and off independently by their <LEDx

ENABLE> bit in the control register. Additionally, bit

<LEDs ON/OFF> will activate and deactivate all LEDs at

the same time. When there are error conditions, the LEDs

will not turn on.

The <DEFAULT> bit in OTP determines if the LEDs are

enabled or disabled on power−up.

The VBB Reset bit at Byte 4, Bit 4 in the Get_Full_Status

In frame response 1 gets set to a one on Power−up and goes

to “0” after the first Get_Full_Status command.

The minimum Power−on Reset Threshold is 1.9 V. The

output drive is guaranteed to be inactive at or below this

threshold.

NOTE: The LED modulation current regulator switches

between I

and a reduced current, I

LEDhigh

LEDlow.

The reduced current value is determined by a

low reference voltage V All references to

Max ON duty cycle in this datasheet run at

2040/2048 duty cycle to provide for internal

analog compensation.

ref2.

NOTE: While LIN is operational for voltages at the

minimum battery voltage level of 5.75 V (typ)

(VBB Undervoltage), the LIN conformance is

only guaranteed for a battery voltage higher

than 8 V.

There is additional sensing of VBB with VBB

Undervoltage detection (5.75 V) and is recorded at Byte 4,

Bit 5 of the Get_Full_Status In frame response 1 and Byte

2, Bit 5 of Get_Status In frame response. The LIN

communication pin will not accept traffic during VBB

Undervoltage, but will record the VBB undervoltage

situation and can only be cleared with a Get_Full_Status

frame.

LED Modulation Sources

Each LED output has its own LED modulation controller.

The NCV7430 blends the modulated LED currents in an

RGB LED to create colors. The NCV7430 provides

additional OTP registers for each channel to store color

calibration factors. The calibration factors are used by the

NCV7430 to create the modulation needed for an exact color

setting.

The calibration functionality can be enabled and disabled

via the CAL_EN bit. If the CAL_EN bit is ‘0’, the LIN

command (8 bit) is save into the modulation registers. When

the CAL_EN is set to ‘1’, the received modulation values are

first corrected, and then stored in the LED modulation

registers.

For the calibration a matrix calculation is used. The matrix

has the following form:

ǒ

Ǔ

LED1Ȁ + (a₁₁) 1) @ LED1 ) (a₁₂) 0) @ LED2 ) (a₁₃) 0) @ LED3 ń32

ǒ

Ǔ

LED2Ȁ + (a₂₁) 0) @ LED1 ) (a₂₂) 1) @ LED2 ) (a₂₃) 0) @ LED3 ń32 (eq. 2)

LED Modulation Matrix

ǒ

Ǔ

LED3Ȁ + (a₃₁) 0) @ LED1 ) (a₃₂) 0) @ LED2 ) (a₃₃) 1) @ LED3 ń32

www.onsemi.com

9

NCV7430

The calibration factors have a value of eight bits and

fraction the programmed LED modulation value between

0% and Max ON duty cycle.

Transitions from color to color, or changes in intensity

will vary in a linear fashion through the color/intensity

spectrum (optional logarithmic mode for intensity). The

fading time can be set between 0 and 6.3 seconds via a 6 bit

register giving a resolution of 0.1 second. The fading

function can be enabled and disabled by programming the

FADING ON/OFF bit in the control registers. The default

state of this bit depends on the <DEFAULT> bit that is set

in OTP memory.

With high values chosen for the coefficients in one row,

the calculation can cross the Max ON duty cycle boundary

(clipping) for the color. As a rule: For proper design, the sum

of the calibration values should stay under Max ON duty

cycle to prevent color saturation.

If one of the calculated LED1′, LED2′, or LED3′ values

exceeds the upper practical boundaries of Max ON duty

cycle, the modulator automatically adapts the modulation

speed to the color that exceeded the Max ON duty cycle.

This method guarantees that the color integrity is

maintained.

Intensity − Linear or logarithmic dimming

Color − Linear dimming only

LED Update Modes

Bits <UPDATECOLOR[1:0]> are used to enable the

NCV7430 for operation in different update modes. The

following modes are implemented:

The calibration factors a11 to a33 reside in nine dedicated

OTP registers:

UPDATECOLOR:

(0x04 to 0x08, and 0x0A to 0x0D).:

00

01

10

11

immediate update

LED modulation Calibration data a11 to a33.

These registers can be programmed in OTP and are

generally used for the compensation of LED colors which

occur due to system design changes and lot−to−lot variation

of LEDs.

store and do not update

update to the already stored values

discard

The UPDATECOLOR bits are included in the command

Set_Color (Byte 5, Bits 6 and 7).

LED Intensity

Short Circuit and Open Circuit Detection

The overall intensity of the LEDs is programmable with

a four bit scaling factor that is applied over the LED

modulation. The register containing this value is

AMBLIGHTINTENSITY. The scaling is linear. The light

output function is described with the following formula:

The NCV7430 provides protection features for each LED

driver. The device monitors for LED Open Circuit (ANODE

to LEDxC), LED Short Circuit (ANODE to LEDxC), Short

LEDxC to GND and Open Circuit R

(LEDxR to

SENSE

GND) as shown in Figure 7. Detection of these errors will

set the appropriate error bits in the status register

(<ERRLEDx[2:0]>), and proper action will be taken

(reference Table 7).

There is a minimum detection activation time of 8 msec for

error detection (use of a 0.2% duty cycle is recommended).

This is derived from a combination of color, intensity levels,

and PWM frequency settings (122 Hz or 244 Hz). The

system design should monitor error detection at high

intensity settings to avoid missing short or open circuit

conditions at low duty cycles. LEDxC shorts to ground do

not require a minimum duty cycle.

Additionally, error detection must be sequential

(transitioning from a known good state to an error state).

Mixing of errors (i.e. transitioning from a short condition to

an open condition) could result in signal false errors in

identity.

Intensity Matrix

LED1int

LED1Ȁ

AMBLIGHTINTENSITY

16

LED2int

LED2Ȁ

₊ǒ

Ǔ_*

Ǌ ǋ

Ǌ ǋ_{(eq. 3)}

LED3Ȁ

LED3int

If the intensity value is set to 15 the used value for the

calculation is 16, resulting in a multiplication factor of 1 (no

intensity reduction). Changing the intensity from one to

another value can follow a linear or logarithmic transition

based on the fading time as described in “Theatre dimming

function”.

LED Modulation Frequency

The LED modulation frequency can be chosen to be 122

or 244 Hz.

Theatre Dimming Function

The NCV7430 has a fading function to give a theater

dimming effect when changing color and/or intensity

settings. The effect presents itself as a smooth transition

between colors, or increases or decreases in intensity.

www.onsemi.com

10

NCV7430

Table 7. ERROR CONDITIONS FOR EACH INDIVIDUAL LED

Retry Option

Error Description:

No Error

ERR[2]

ERR[1]

ERR[0]

Action:

No Action

0

1

0

1

No

Open circuit LEDxR

Yes

Thermal Sense

Short from ANODE to LEDxC

Short from LEDxC to GND (Note 13)

“Shorted LED cathode to GND”

0

1

0

1

Yes

No

ANODE OFF (Note 12)

LEDxC OFF

Open circuit (LEDxC to ANODE)

Thermal Shutdown

Thermal Sense

Automatic retry below Thermal

Warning Threshold

LED & ANODE OFF

(Note 12)

12.ANODE OFF is realized by internal circuitry that switches VBIAS to 0 V. The Anode can only be switched off when an external transistor is used.

13.A short from (LEDxC) to (LEDxR), or (ANODE) to (LEDxR) may damage the device. When the external ballast transistor is not used, the

LED and/or Rsense may also be damaged.

ANODE

LED Open Circuit

Detection

LEDxC

Error

Detection

Manager

LED Short Circuit

Detection

Short Circuit

Detection

LEDxC to GND

LEDxR

GND

Open Circuit

Detection

RSENSE to GND

Figure 7. Short Circuit and Open Circuit Detection

Thermal Warning and Thermal Shutdown

Thermal Control Bit

The NCV7430 has thermal warning and thermal

shutdown protection features. When the junction

temperature of the NCV7430 rises above the thermal

When the thermal control bit <TH_CONT> is set, the

NCV7430 will actively regulate the LED currents as

programmed by the user when exceeding a thermal warning

threshold. This function protects the device and the LEDs

from overheating without interaction from the LIN master.

When T<TW> is reached, the NCV7430 will decrease the

LED currents by a step defined by the parameter

TH_Ired_step. The reduction in current is represented by the

warning level (T

), the <TW> warning flag is set in the

<TW>

status register. When the junction temperature rises above

the device will switch off the LEDs, and set the

T

<TSD>,

<TSD> flag in the status register. <TSD> and <TW> flags

represent an event has happened and may not represent the

current state of the IC. After the <TSD> flag is set, the device

can only enter normal operation again after it is cooled down

status bit <TH_CONT_STATE>. If after t

seconds

TH_timeout

the thermal warning condition is still present, the current is

decreased further. If the thermal warning condition is

below the T

level. After a <TSD > occurrence and the

<TW>

cooling down period, the NCV7430 will resume normal

operation.

removed within the t

keeps the reduced current setting for the next t

seconds, the NCV7430

TH_timeout

www.onsemi.com

11

NCV7430

period. The reduced current state is presented by the 4 bit

<TH_CONT_STATE[3:0]> register.

Under normal conditions the Thermal Warning level has

The currents can be set back to their normal operating

values by writing the <LEDs ON/OFF> bit to ‘1’ in the

control register where the bit was previously set. After this

command the < TH_CONT_STATE > is reset to ‘0’.

Note: During thermal control the device is still protected

for over temperatures at the Thermal Shutdown threshold.

the value as specified by T

With the OTP

<TW>.

programmable bit <TWPROG>, the Thermal warning and

Thermal Shutdown levels can be reduced by 20°C.

T shutdown level

T

T warning level

t

T <tw> bit

T < Ttw and*

getfullstatus

T < Ttw and*

getfullstatus

LED’s turn on

T <tsd> bit

T > Ttsd,

LED’s turn OFF

* TSD and TW flags remain set until

cleared with getfullstatus.

Figure 8. Thermal Management

Retry Mode

A retry mode will be entered upon error detection (as per

Table 12). Information on this event is stored in the status

register (bit <RETRYSTATE>).

LED currents will be regulated as described in “Thermal

warning and thermal control”.

NOTE: Care has to be taken not to overstress the system

by switching on the LEDs repeatedly after

detection of errors.

The <ERROFF> bit residing in OTP can program to act

on all LEDs when an error occurs or to act only on the

LED(s) that is (are) failing.

After entering the retry mode, the device will switch ON

the LED(s) after t

If the error(s) still exists, the

retryinterval.

device will switch OFF the LEDs. The retry actions are

taken place N times. After the last retry, the

numberofretries

device will switch OFF the LEDs until a turn−on signal is

reinitiated by the user via the LIN pin. This is done by

resetting the internal retry counter by reading the Status

Register via a GetFullStatus command. After reading, the

<RETRYSTATE> and error flags are cleared.

The error conditions “Shorted LED” and “Open circuit”

do not switch OFF the LEDs. For these errors, the device

relies on the (always active) thermal shutdown and thermal

control. When the thermal shutdown temperature threshold

is reached, the device will switch OFF the LEDs (reference

<ERROFF> below). When thermal control is activated, the

NOTE: The NCV7430 utilizes a single timeout counter

for the Retry Interval time. Additional errors

st

occurring after the 1 error detection will cause

the timer to be reset. This results in an extended

retry interval time for the initial detected error.

This is highlighted in Figure 9. The device

attempts to turn on 20 times (after a

GetFullStatus request).

www.onsemi.com

12

NCV7430

1

5

10

15

20

T shutdown level

T warning level

Getfullstatus

request

1

5

1

5

10

15

20

T shutdown level

T warning level

Getfullstatus

request

Figure 9. Retry Counter

Sleep Mode

detection of a transition of LIN recessive state to dominant

state followed by a dominant level for a time period

In sleep mode, LEDs are turned OFF and the VBIAS

output is brought to 0V, turning OFF the optional bypass

transistor. The internal circuitry of the NCV7430, including

the band gap reference, internal oscillator and current

sources are put in low power mode and the internal registers

are reset. In Sleep mode the total battery current

>t

.

LIN_Wake

Refer to Figure 6 for wake time and voltage threshold

definitions to wake up via LIN bus transitions.

As per the LIN protocol, a special master request frame is

issued to force slave nodes to sleep mode. Reference Table

29 for details of the command structure.

consumption is reduced to I

as specified in the DC

bat_sleep

parameter table. The NCV7430 wakes up from sleep after

www.onsemi.com

13

NCV7430

OTP REGISTERS

Table 8. OTP MEMORY STRUCTURE

Address

0x00

0x01

0x02

0x03

0x04

0x05

0x06

0x07

0x08

0x09

0x0A

0x0B

0x0C

0x0D

0x0E

Bit 7

OSC4

Bit 6

OSC3

Bit 5

OSC2

Bit 4

OSC1

Bit 3

Bit 2

ZAP2

BG2

Bit 1

ZAP1

BG1

Bit 0

ZAP0

BG0

OSC0

BG3

TSD3

TSD2

TSD1

TSD0

DEFAULT

LOCKBT1

ERROFF

CMDSOFF

TWPROG

AD5

LOCKBT0

AD4

PPOL3

AD3

PPOPL2

AD2

PPOL1

AD1

PPOL0

AD0

LED modulation Calibration data a11

LED modulation Calibration data a12

LED modulation Calibration data a13

LED modulation Calibration data a21

LED modulation Calibration data a22

0

1

reserved

TWPROG2

LOW BAUD

BALLAST

LED modulation Calibration data a23

LED modulation Calibration data a31

LED modulation Calibration data a32

LED modulation Calibration data a33

LOCKBT2 LED_MOD_FREQ

1

TH_CONT

GROUP_ID3 GROUP_ID2 GROUP_ID1 GROUP_ID0

Table 9. OTP PROGRAMMING BIT DESCRIPTION

Programming

Table 10. OTP OVERWRITE PROTECTION

Lock Bit

Protected Bytes

Bit

DEFAULT

ERROFF

Description

LOCKBT0

(factory zapped

before delivery)

0x00 − All bits

‘1’ Enables the LEDs on power−up.

0x01− All bits

‘1’ Turns off all LEDs during LEDxC

short to ground.

0x02 − bit 0 to bit 5

LOCKBT1

LOCKBT2

0x03

TWPROG,

TWPROG2

(See table below)

0x0E − GROUP_IDx bits

LOCKBT1

CMDSOFF

‘1’ Locks bits per Table 13.

0x04 to 0x0D

‘1’ Limits command recognition to

Set_Color_Short and Set_Iintensity.

0x02 − DEFAULT, ERROFF, TWPROG,

and TWPROG2

AD0 − AD5

LOW BAUD

NCV7430 address programming bits.

Expected Low Baud Rate

‘0’ = 9600 BAUD

0x03 − CMDSOFF

0x0E − LED_MOD_FREQ and

TH_CONT

‘1’ = 10400 BAUD

Parameters stored at address 0x00 and 0x01, and bit 0 to

bit 4 of address 0x02 are pre−programmed in the OTP

memory at the factory. They correspond to the calibration of

the circuit. This does not correspond to LED calibration.

Each OTP bit is set to ‘0’ prior to zapping. Zapping a bit

will set it to ‘1’. Zapping of a bit already at ‘1’ will have no

effect.

Each OTP byte needs to be programmed separately (see

command SetOTPparam). Once OTP programming is

completed, bit <LOCKBT1> and <LOCKBT2> can be

zapped to disable future zapping.

BALLAST

This bit must be zapped (‘1’) when us-

ing an external ballast transistor. An un-

zapped bit with the use of a ballast tran-

sistor could result in LEDxC short to

ground errors.

LOCKBT2

‘1’ Locks bits per Table 13.

LED_MOD_FREQ

‘0’ LED modulation frequency − 122 Hz

‘1’ LED modulation frequency − 244 Hz

TH_CONT

‘1’ Thermal Control Enabled.

NCV7430 group programming bits.

16 possible groups.

GROUP_ID0−

GROUP_ID3

After programming the OTP, the contents only become

active after a power−on reset. The power−on reset copies the

OTP information to the registers.

Thermal Warning Temperature Select

TWPROG2

TWPROG

Temperature

95°C

0

1

0

1

0

115°C

120°C

130°C

www.onsemi.com

14

NCV7430

Table 11. REGISTERS AND FLAGS

Length

(bit)

Register

Mnemonic

Related Commands

Comment

Reset State

LED color value

LED1

Led 1’

8

Get_Color

Set_Color

Set_Color_Short

Get_Actual_param

8−bit unsigned: 0x00 .. 0xFF

“00”

LED color value

LED2

Led 2’

Led 3’

8

Get_Color

Set_Color

Set_Color_Short

Get_Actual_param

8−bit unsigned: 0x00 .. 0xFF

“00”

LED color value

LED3

Get_Color

Set_Color

Set_Color_Short

Get_Actual_param

LED modulation

Calibration a11

Cal_a11

Cal_a22

Cal_a33

Cal_a12

8

Get_Actual_Param

Set_Primary_Cal_Param

8−bit unsigned: 0x00 .. 0xFF

From OTP or “FF” when

all OTP values are “0”

LED modulation

Calibration a22

Get_Actual_Params

Set_Primary_Cal_Param

From OTP or “FF” when

all OTP values are “0”

LED modulation

Calibration a33

Get Actual Param

Set_Primary_Cal_Param

From OTP or “FF” when

all OTP values are “0”

LED modulation

Calibration a12

Get Actual Param

Set_Secondary_Cal_Param

FROM OTP

“1”

LED modulation

Calibration a13

Cal_a13

Cal_a21

Cal_a23

Cal_a31

Cal_a32

CAL_EN

8

1

Get_ Actual _Param

Set_Secondary_Cal_Param

8−bit unsigned: 0x00 .. 0xFF

LED modulation

Calibration a21

Get Actual_Param

Set_Secondary_Cal_Param

LED modulation

Calibration a23

Get_ Actual _Param

Set_Secondary_Cal_Param

LED modulation

Calibration a31

Get_ Actual _Param

Set_Secondary_Cal_Param

LED modulation

Calibration a32

Get_ Actual _Param

Set_Secondary_Cal_Param

Calibration

Enable

Get_LED_Control

Set_LED_Control

Get_Actual_Param

“0”: Calibration is not used

“1”: Calibration is used

Ambient light

intensity

AMBLIGHT

INTENSITY

4

6

1

Set_Intensity

4 bit linear scaling for intensity

“15”

“00”

Fading Time

Fading

time[5:0]

Set_Color

Get_Actual_Param

6−bit unsigned: 0 .. 6..3 seconds

in resolution steps of 0.1 secs

Fading ON/OFF

Fading Slope

Thermal Control

FADING

ON/OFF

Set_Color

Get_Actual_Param

“0” : Fading off

“1” : Fading on

If DEFAULT = 1: “1”

If DEFAULT = 0: “0”

FADING

SLOPE

Set_Color

Get_Actual_Param

“0” : Fading slope logarithmic

“1” : Fading slope Linear

“0”

TH_CONT

DEFAULT

ERROFF

Set_LED_Control

Get_Actual_Param

Get_LED_Control

“0” : Automatic thermal control

Disabled

FROM OTP

“1” : Automatic thermal control

Enabled

DEFAULT state

after power−on

1

Set_OTP_Param

“0” : Default power−up state:

LEDs and Fading OFF

FROM OTP

“1” : Default power−up state:

LEDs and Fading ON

LED error

detection

selection

“0” : Only failing LED off when

an error is detected

“1” : All LEDs off when an

error is detected

Commands OFF

CMDSOFF

“0” : All LIN commands are

validated and executed

“1” : Only LIN command

Set_Color_Short and

Set_intensity are validated

and executed, all other

command are disabled for

use.

www.onsemi.com

15

NCV7430

Table 11. REGISTERS AND FLAGS

Length

(bit)

Register

Mnemonic

Related Commands

Comment

4 bits unsigned

“0” : current reduced to

6.25% DC

Reset State

Thermal Control

Status

TH_CONT

_STATE[3:0]

4

Get_Full_Status

“15”

“15” : current not reduced

(Max ON DC)

TWPROG

TWPROG2

1

Set_OTP_Param

“0”

“1”

FROM OTP

Works with TWPROG2

Thermal Warning Level

Set per the Temperature

Select Table.

TWPROG2

“0”

“1”

Works with TWPROG

Thermal Warning Level

Set per the Temperature

Select Table.

LEDs ON/OFF

Set_LED_Control

Set_Color

Get_LED_Control

“0” : All LEDs OFF

“1” : All LEDs ON if individual

LEDx ENABLE is set to “1”

If DEFAULT = 1: “1”

If DEFAULT = 0: “0”

LED1 ENABLE

LED2 ENABLE

LED3 ENABLE

LED1 ENABLE

LED2 ENABLE

LED3 ENABLE

1

2

Set_LED_Control

Get_LED_Control

“0” : LED 1 OFF

“1” : LED1 ON

If DEFAULT = 1: “1”

If DEFAULT = 0: “0”

Set_LED_Control

Get_LED_Control

“0” : LED 2 OFF

“1” : LED 2 ON

If DEFAULT = 1: “1”

If DEFAULT = 0: “0”

Set_LED_Control

Get_LED_Control

“0” : LED 3 OFF

“1” : LED 3 ON

If DEFAULT = 1: “1”

If DEFAULT = 0: “0”

UPDATECOLOR

mode

UPDATE

COLOR[1:0]

Set_Color

“00”: immediate update

“01”: store and do not update

“10”: update to the already

stored values

“0”

“11”: discard

RETRY state

RETRYSTATE

1

Get_Full_Status

Get_Status

“0”: not in retry state

“1”: device is retrying to

recover from error

“0”

LED modulation

frequency

LED_MOD_

FREQ

Set_LED_Control

Get_Actual_Param

Get_LED_Control

“0” : 122 Hz

“1” : 244 Hz

FROM OTP

ERROR LED 1

ERROR LED 2

ERROR LED 3

ERRLED1[2:0]

ERRLED2[2:0]

ERRLED3[2:0]

TW

3

1

2

Get_Full_Status

GetStatus

Refer to Table 8

“x”

Get_Full_Status

GetStatus

Refer to Table 8

Get_Full_Status

GetStatus

Refer to Table 8

Thermal

warning

Get_Full_Status

GetStatus

Thermal warning detected

Thermal Shutdown detected

Thermal

Shutdown

TSD

Get_Full_Status

GetStatus

Tinfo

Tinfo[1:0]

Get_Full_Status

00: T < T

<TW>

01: T

<T < T

<TW>

<TSD>

11: T > T

<TSD>

VBB_reset

VBB_Reset

1

Get_Full_Status

POR reset detected

“1”

“x”

LIN Data Error

Checksum Error + Stopbit

Error + Length Error

LIN Header Error LIN Header Error

LIN Bit Error LIN Bit Error

1

Get_Full_Status

Parity Error + Synch field Error

“x”

Difference in sent and

monitored bit

www.onsemi.com

16

NCV7430

LIN CONTROLLER

General Description

VBB

The LIN (local interconnect network) is a serial

communications protocol that efficiently supports the

control of distributed nodes in automotive applications. The

physical interface implemented in the NCV7430 is

compliant to the LIN rev. 2.0 & 2.1 specifications. It features

a slave node, thus allowing for:

• single−master / multiple−slave communication

• self synchronization without quartz or ceramics

resonator in the slave nodes

30 kW

RxD

TxD

LIN

protocol

handler

to

control

block

LIN

Filter

Slope

Control

• guaranteed latency times for signal transmission

LIN address

• single−signal−wire communication

• transmission speed of 19.2 kbit/s, 10.4 kbit/s and

9.6 kbit/s

from OTP

• selectable length of Message Frame: 2, 4, and 8 bytes

• configuration flexibility

Figure 10.

• data checksum (classic checksum) security and error

detection

Functional Description

Analog Part

The transmitter is a low−side driver with a pull−up resistor

and slope control. The receiver mainly consists of a

comparator with a threshold equal to V /2. Figure 5 shows

the characteristics of the transmitted and received signal.

See AC Parameters for timing values.

• detection of defective nodes in the network

It includes the analog physical layer and the digital

protocol handler.

The analog circuitry implements a low side driver with a

pull−up resistor as a transmitter, and a resistive divider with

a comparator as a receiver. The specification of the line

driver/receiver follows the ISO 9141 standard with some

enhancements regarding the EMI behavior.

BB

Protocol Handler

This block implements:

• Bit synchronization

• Bit timing

Slave Operational Range for Proper Self

Synchronization

The LIN interface will synchronize properly in the

following conditions:

• The MAC layer

• The LLC layer

• The supervisor

• Vbat: sufficiently high

• Ground shift between master node and slave node < 1ꢀV

It is highly recommended to use the same type of reverse

battery voltage protection diode for the Master and the Slave

nodes.

Error Status Register

The LIN interface implements a register containing an

error status of the LIN communication. This register is as

follows:

Table 12. LIN ERROR REGISTER

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Not

used

Not

used

Not

used

Not

used

Not

used

Data

error Flag

Header

error Flag

Bit

error Flag

With:

Data error flag: (= Checksum error + StopBit error + Length error)

Header error flag: (= Parity error + SynchField error)

Bit error flag: Difference in bit sent and bit monitored on the LIN bus

A GetFullStatusframe will reset the LIN error status register.

www.onsemi.com

17

NCV7430

Physical Address of the Circuit

NOTE: For the Set_Color_Short and Set_Intensity

commands the GROUP_ID bits are split. The

lower two bits are used to assign the NCV7430

to one of four groups for the color setting, while

the upper two bits are used to assign the device

to one of four groups for the intensity setting.

The circuit must be provided with a node address in order

to discriminate this circuit from other ones on the LIN bus.

This address is coded on 6 bits, yielding the theoretical

possibility of 64 different devices on the same (logical) bus.

However the maximum number of nodes in a LIN network

is also limited by the physical properties of the bus line.

Beside the node address a 4 bit “GROUP_ID” identifier

is available. This “GROUP_ID” identifier is only evaluated

when the Broad bit is recognized as ‘0’. The “GROUP_ID”

identifier assigns the node to one of 16 groups. The node can

only be assigned to one group. The LIN message will use 16

bit locations for the Groups. When the Node “GROUP_ID”

identifier matches the bit in the message, the message will

be evaluated. Refer to Figure 8.

BAUD Rate

The NCV7430 device automatically distinguishes

between high and low baud rates.

A high baud rate of 19200 transmitted by the master will

be duplicated by the slave.

There are two low baud rates in use between the US and

Europe. They are 9600 and 10400. To eliminate possible

confusion between these two closely related frequencies, the

device is programmable via the OTP register to select

between the two frequencies (reference Table 8).

Group ID

programmed

in NCV7430

LIN Frames

The LIN frames can be divided in writing and reading

frames. A frame is composed of an 8−bit Identifier followed

by 2, 4 or 8 data−bytes and a checksum byte.

NOTE: The checksum conforms to LIN 1.3. This means

that all identifiers are validated with classic

checksum.

Send by

Master

The message can address one or more Nodes at the

same time by setting the appropriate Group bit(s).

Writing frames will be used to:

• Program the OTP Memory;

Figure 11.

• Configure the LED parameters (Modulation value etc);

Resuming: The NCV7430 is individually addressable by

its LIN node address and cluster addressable via the “Group”

bits when ‘Broad’ is ‘0’.

• Control of the LED Outputs.

Whereas reading frames will be used to:

• Get status information such as error flags;

• Reading OTP for calibration by MCU;

• Verify the right programming and configuration of the

component.

Writing Frames

The LIN master sends commands and/or information to

the slave nodes by means of a writing frame. According to

the LIN specification, identifiers are to be used to determine

a specific action. If a physical addressing is needed, then

some bits of the data field can be dedicated to this, as

illustrated in the example below.

Identifier Byte

Data Byte 1

Data Byte 2

ID

0

ID

1

ID

2

ID

3

ID

4

ID

5

ID

6

ID

7

phys. address

command parameters (e.g. position)

<ID6> and <ID7> are used for parity check over <ID0> to <ID5>, conforming to LIN2.1 specification. <ID6> = <ID0> ⊕

<ID1> ⊕ <ID2> ⊕ <ID4> (even parity) and <ID7> = NOT(<ID1> ⊕ <ID3> ⊕ <ID4> ⊕ <ID5>) (odd parity).

www.onsemi.com

18

NCV7430

Another possibility is to determine the specific action within the data field in order to use fewer identifiers. One can for

example use the reserved identifier 0x3C and take advantage of the 8 byte data field to provide a physical address, a command

and the needed parameters for the action, as illustrated in the example below.

ID

0x3C

Data Byte 1 Data Byte 2 Data Byte 3

Data Byte 4 Data Byte 5 Data Byte 6 Data Byte 7

Data Byte 8

00

1

AppCmd

command

physical

address

parameters

NOTE: Bit 7 of Data byte 1 must be at ‘1’ since the LIN specification requires that contents from 0x00 to 0x7F must be

reserved for broadcast messages (0x00 being for the “Sleep” message). See also LIN command Sleep. The

NCV7430 is using both of above mentioned methods.

LIN Commands:

In the following paragraphs all LIN frame commands are described. The gray filled cells of the tables present the bytes sent

by the master while the white cells present the bytes sent by the slave (NCV7430).

Table 13. COMMAND SUMMARY

Command

Get_Full_Status

Response

Get_Full_Status In frame response 1

Get_Actual_Param1

Get_Actual_Param In frame response 1

Get_Actual_Param2

Get_Actual_Param In frame response 2

Get_OTP_Param 1

Get_OTP_Param In frame response 1

Get_OTP_Param 2

Get_OTP_Param In frame response 2

Get_Status READING FRAME

Get_Color READING FRAME

Get_LED_Control READING FRAME

Set_LED_Control WRITING FRAME

Set_Color WRITING FRAME

Set_Color_Short

Get_Status In frame response 1

Get_Color In frame response 1

Get_LED In frame response 1

−

Set_Intensity

Set_Primary_Cal_Param

Set_Secondary_Cal_Param

Set_OTP_Param

Sleep

www.onsemi.com

19

NCV7430

Get_Full_Status

Note: A Get_Full_Status command will clear flags <TW>,

<TSD>, <ERRLEDx[2:0]>, <VBB_Reset> and

<RETRYSTATE>. If the error condition persists, the

value will be set again.

This command is provided to the circuit by the LIN master

to get a complete status of the circuit. Refer to Registers and

Flags Table to see the meaning of the parameters sent to the

LIN master.

Get _Full_Status conforms to a 0x3C command structure.

Table 14. Get_Full_Status

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

AppCMD =0x80

Data 2

1

CMD[6:0] = 0x01

Data 3

1

AD[5:0]

Data 4

0xFF

Data 5

0xFF

Data 6

0xFF

Data 7

0xFF

Data 8

Checksum

Classic Checksum over data

Get_Full_Status In frame response 1

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

0

1

0

1

AD[5:0]

0xFF

Data 2

Data 3

1

LIN Data

error

LIN Header

LIN Bit

error

4

5

6

7

Data 4

Data 5

Data 6

Data 7

VBB Under VBB Reset

Voltage

TSD

TW

Tinfo[1:0]

TH_CONT TH_CONT TH_CONT TH_CONT

STATE 3

RETRY

STATE

ERR[2]

LED1

ERR[1]

LED1

ERR[0]

LED1

STATE 2

STATE 1

STATE 0

1

ERR[2]

LED3

ERR[1]

LED3

ERR[0]

LED3

1

ERR[2]

LED2

ERR[1]

LED2

ERR[0]

LED2

LED3

LED2

LED1

LEDs

GROUP_ID3 GROUP_ID2 GROUP_ID1 GROUP_ID0

ENABLE

ON/OFF

8

9

Data 8

0xFF

Checksum

Classic Checksum over data

Where:

Tinfo[1:0] gives the actual state of the temperature, while TW and TSD present the Latched status

The Error states are as follows:

Error Description:

ERR[2] LEDx

ERR[1] LEDx

ERR[0] LEDx

No Error

0

1

0

1

0

1

0

1

0

Open circuit − LEDxR, Short from ANODE to LEDxC

Open circuit − LEDxC to ANODE

Short from LEDxC to Ground

www.onsemi.com

20

NCV7430

The TH_CONT_STATE[3:0] read only bits represent the degree of current reduction when the thermal control bit

<TH_CONT> is set .

TH_CONT_STATE[3:0]

Current in % of Nominal

15

14

13

12

11

10

9

Max ON

93.75

87.50

81.25

75.00

68.75

62.50

56.25

50.00

43.75

37.50

31.25

25.00

18.75

12.50

6.25

8

7

6

5

4

3

2

1

0

www.onsemi.com

21

NCV7430

Get_Actual_Param

Reads the full set of the actual parameters of the NCV7430. For this command two messages are needed. This is a 0x3C

command requiring an in frame slave responses.

Table 15. Get_Actual_Param1

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

AppCMD =0x80

Data 2

1

CMD[6:0] = 0x02

Data 3

1

AD[5:0]

Data 4

0xFF

Data 5

0xFF

Data 6

0xFF

Data 7

0xFF

Data 8

Checksum

Classic Checksum over data

Get_Actual_Param In frame response 1

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7

Data 8

0

1

2

3

4

5

6

7

8

0

1

0

1

AD[5:0]

LED color value LED 1 [7:0]

LED color value LED 2 [7:0]

LED color value LED 3 [7:0]

LED modulation Calibration data a11[7:0]

LED modulation Calibration data a22[7:0]

LED modulation Calibration data a33[7:0]

Fading time [5:0]

FADING

ON/OFF

FADING

SLOPE

9

Checksum

Classic Checksum over data

www.onsemi.com

22

NCV7430

Table 16. Get_Actual_Param2

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

1

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

AppCMD =0x80

Data 2

1

CMD[6:0] = 0x03

Data 3

1

AD[5:0]

Data 4

0xFF

Data 5

0xFF

Data 6

0xFF

Data 7

0xFF

Data 8

Checksum

Classic Checksum over data

Get_Actual_Param In frame response 2

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7

Data 8

0

1

2

3

4

5

6

7

8

0

1

0

1

AD[5:0]

LED modulation Calibration value a12[7:0]

LED modulation Calibration value a13[7:0]

LED modulation Calibration value a21[7:0]

LED modulation Calibration value a23[7:0]

LED modulation Calibration value a31[7:0]

LED modulation Calibration value a32[7:0]

CAL_EN

LED_MOD_

FREQ

1

TH

CONT

GROUP_ID3 GROUP_ID2 GROUP_ID1 GROUP_ID0

9

Checksum

Classic Checksum over data

www.onsemi.com

23

NCV7430

Get_OTP_Param

Reads the full set of OTP settings of the NCV7430. For this command two messages are needed. This is a 0x3C command

requiring an in frame slave response.

Table 17. Get_OTP_Param 1

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

AppCMD =0x80

CMD[6:0] = 0x04

AD[5:0]

Data 2

1

Data 3

1

Data 4

0xFF

Data 5

0xFF

Data 6

0xFF

Data 7

0xFF

Data 8

0xFF

Checksum

Classic Checksum over data

Get_OTP_Param In frame response 1

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

1

AD[5:0]

Data 2

1

LOW BAUD DIAGALLOFF

Data 3

1

Data 4

DEFAULT

ERROFF

TWPROG

AD5

1

Data 5

LOCKBT1 CMDSOFF

AD4

AD3

AD2

AD1

AD0

Data 6

LED modulation Calibration data a11[7:0]

LED modulation Calibration data a12[7:0]

LED modulation Calibration data a13[7:0]

Classic Checksum over data

Data 7

Data 8

Checksum

NOTE: After programming bit <CMDSOFF> all the LIN commands (except Set_Color_Short and Set_intensity) are

disabled (The commands are not evaluated and interpreted by the NCV7430).

www.onsemi.com

24

NCV7430

Table 18. Get_OTP_Param 2

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

1

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

AppCMD =0x80

Data 2

1

CMD[6:0] = 0x05

Data 3

1

AD[5:0]

Data 4

0xFF

Data 5

0xFF

Data 6

0xFF

Data 7

0xFF

Data 8

Checksum

Classic Checksum over data

Get_OTP_Param In frame response 2

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7

Data 8

0

1

2

3

4

5

6

7

8

0

1

0

1

AD[5:0]

LED modulation Calibration data a21[7:0]

LED modulation Calibration data a22[7:0]

LED modulation Calibration data a23[7:0]

LED modulation Calibration data a31[7:0]

LED modulation Calibration data a32[7:0]

LED modulation Calibration data a33[7:0]

LOCKBT2

LED_MOD_

FREQ

1

TH_CO GROUP_ID3 GROUP_ID2 GROUP_ID1 GROUP_

NT

ID0

9

Checksum

Classic Checksum over data

www.onsemi.com

25

NCV7430

Get_Status

This command delivers a short overview of the device status. It will not attempt to reset the error bits. Resetting error bits

requires execution of the Get_Full_Status command.

Conform a two byte in frame command structure.

Table 19. Get_Status READING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

0

1

0

1

0

AD[5:0]

8’hFF

Classic Checksum over data

Data 2

Checksum

Get_Status In frame response 1

0

1

2

Identifier

Data 1

0

1

0

1

0

1

0

1

AD[5:0]

Data 2

TSD

TW

VBB

Under

Voltage

RETRY ERROR LED3 ERRORLED2 ERRORLED1

STATE

LIN ERROR

3

Checksum

Classic Checksum over data

Where:

LIN ERROR = Or function of all LIN Errors

Error LED1 = function ERRLED1[2:0] ≠ 0; refer to Table 8

Error LED2 = function ERRLED2[2:0] ≠ 0; refer to Table 8

Error LED3 = function ERRLED3[2:0] ≠ 0; refer to Table 8

RETRY STATE = NCV7430 is retrying to recover from errors

VBB Undervoltage = “0” at power−on reset. Set to a “1” with VBB Undervoltage. Cleared with a GET_FULL_STATUS

command.

www.onsemi.com

26

NCV7430

Get_Color

Gives the real modulation register values (after calibration).

Conform an eight byte in frame command structure.

Table 20. Get_Color READING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

0

1

0

1

0

AD[5:0]

0

Data 2

8’hFF

Checksum

Classic Checksum over data

Get_Color In frame response 1

Structure

Bit 3

Bit 7

Bit 6

Bit 5

Bit 4

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7

Data 8

0

1

2

3

4

5

6

7

8

1

0

1

0

1

0

1

0

AD[5:0]

LED modulation value LED 1’ [7:0] (real LED modulation register)

LED modulation overflow LED1 LED modulation value LED 1’ [10:8]

LED modulation value LED 2’ [7:0] (real LED modulation register)

LED modulation overflow LED2 LED modulation value LED 2’ [10:8]

LED modulation value LED 3’ [7:0] (real LED modulation register)

1

Intensity[3:0]

LED modulation overflow LED3 LED modulation value LED 3’ [10:8]

Fading time [5:0]

FADING

ON/OFF

FADING

SLOPE

9

Checksum

Classic Checksum over data

www.onsemi.com

27

NCV7430

Get_LED_Control

This command reads the control bits conform a two byte in frame command structure.

Table 21. Get_LED_Control READING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

0

1

0

1

0

AD[5:0]

8’hFF

Data 2

Checksum

Classic Checksum over data

Get_LED In frame response 1

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

0

1

0

1

0

AD[5:0]

Data 2

CAL_EN

LED_MOD_

FREQ

LEDs

ON/OFF

TH CONT

LED3

ENABLE

LED2

ENABLE

LED1

ENABLE

1

3

Checksum

Classic Checksum over data

Set_LED_Control

This command is the overall control command to switch the LEDs on and off.

Table 22. Set_LED_Control WRITING FRAME

Structure

Bit 7

1

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

0

1

0

1

Broad

AD[5:0]

Data 2

Group 7

selected

Group 6

selected

Group 5

selected

Group 4

selected

Group 3

selected

Group 2

selected

Group 1

selected

Group 0

selected

3

4

Data 3

Data 4

Group 15

selected

Group 14

selected

Group 13

selected

Group 12

selected

Group 11

selected

Group 10

selected

Group 9

selected

Group 8

selected

CAL_EN

LED_MOD_

FREQ

LEDs

ON/OFF

TH CONT

LED3

ENABLE

LED2

ENABLE

LED1

ENABLE

1

5

Checksum

Classic Checksum over data

Where:

Broad: Broad = ‘0’ means group addressing. One or more groups can be selected by setting the corresponding ‘GroupX

Selected’ bit to ‘1’. All nodes with GROUP_ID matching the selected groups will act. AD[5:0] bits are ignored.

Broad = ‘1’ means single node addressing. The target node address is indicated by the AD[5:0] bits. Group selection bits are

ignored.

This command is executed immediately.

www.onsemi.com

28

NCV7430

Set_Color

When CAL_EN is set to ‘0’, the real value for the color setting is written into the LED modulation register. When CAL_EN is

set to ‘1’ the received 8 bit values are first corrected by the matrix calculation and then applied to the LED modulation registers.

Table 23. Set_Color WRITING FRAME

Structure

Bit 7

0

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

1

0

1

0

Broad

AD[5:0]

Data 2

Group 7

selected

Group 6

selected

Group 5

selected

Group 4

selected

Group 3

selected

Group 2

selected

Group 1

selected

Group 0

selected

3

4

5

Data 3

Data 4

Data 5

Group 15

selected

Group 14

selected

Group 13 Group 12 Group 11 Group 10

Group 9

selected

Group 8

selected

UPDATE

COLOR[1]

UPDATE

COLOR[0]

Fading time[5:0]

FADING

ON/OFF

FADING*

SLOPE

LEDs

1

Intensity[3:0]

ON/OFF

6

Data 6

Data 7

LED color value LED 1 [7:0]

LED color value LED 2 [7:0]

LED color value LED 3 [7:0]

Classic Checksum over data

7

8

9

Data 8

Checksum

Where:

Broad: Broad = ’0’ means group addressing. One or more groups can be selected by setting the corresponding ’GroupX

Selected’ bit to ’1’. All nodes with GROUP_ID matching the selected groups will act. AD[5:0] bits are ignored.

Broad = ’1’ means single node addressing. The target node address is indicated by the AD[5:0] bits. Group selection bits are

ignored.

The update of the LED colors is determined by UPDATECOLOR[1:0]

00

01

10

11

immediate update

store and do not update

update to the already stored values

discard

www.onsemi.com

29

NCV7430

Set_Color_Short

The Set_Color_Short command is used to set the LED colors directly for the four groups that are indicated. This command

is short and does not contain all the parameters as used in the Set_Color command. Only four groups can be approached, so

the NCV7430 needs to be programmed as member of one of these groups:

(lowest two bits of GROUP_ID in OTP; GROUP_ID0 and GROUP_ID1; presenting 0 to 3 for color).

NOTE: This command is always acting towards groups. Individual node addresses are not implemented.

Table 24. Set_Color_Short WRITING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

Data 2

Data 3

Data 4

0

1

2

3

4

0

1

0

1

LED color value LED 1 [7:0]

LED color value LED 2 [7:0]

LED color value LED 3 [7:0]

1

C_GroupD C_GroupC C_GroupB C_GroupA

selected selected selected selected

5

Checksum

Classic Checksum over data

Where:

Color Groups

Corresponding GROUP_ID Range

C_GroupA

C_GroupB

C_GroupC

C_GroupD

xx00

xx01

xx10

xx11

*Fading Scope = 0 = logarithmic

= 1 = linear

Choose either 0 or 1 when setting control for intensity

Fading Slope must be set to ’1’ for color control (only Linear is allowed).

Set_Intensity

The Set_Intensity command is used to set the LED colors directly for the groups that are indicated. Only four groups can

be approached, so the NCV7430 needs to be programmed as member of one of these groups:

(higher two bits of GROUP_ID in OTP; GROUP_ID2 and GROUP_ID3; presenting group 0 to 3 for intensity).

NOTE: This command is always acting towards groups. Individual node addresses are not implemented.

Table 25. Set_Intensity WRITING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

0

1

0

1

0

I_GroupD I_GroupC

selected

I_GroupB

selected

I_GroupA

selected

Intensity[3:0]

selected

2

3

Data 2

1

Fading time[5:0]

Checksum

Classic Checksum over data

Where:

Intensity Groups

Corresponding GROUP_ID Range

I_GroupA

00xx

01xx

10xx

11xx

I_GroupB

I_GroupC

I_GroupD

www.onsemi.com

30

NCV7430

Set_ Primary _Cal_Param

Using a four byte command structure. These registers are updated as default from OTP after a power−on reset.

Table 26. Set_Primary_Cal_ Param WRITING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

0

1

0

1

0

1

0

1

AD[5:0]

Data 2

LED modulation Calibration value a11[7:0]

LED modulation Calibration value a22[7:0]

LED modulation Calibration value a33[7:0]

Classic Checksum over data

Data 3

Data 4

Checksum

Set_ Secondary_Cal _Param

Using an eight byte command structure. These registers are updated as default from OTP after a power−on reset.

Table 27. Set_ Secondary _Cal_Param WRITING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

1

0

AD[5:0]

Data 2

LED modulation Calibration value a12[7:0]

LED modulation Calibration value a13[7:0]

LED modulation Calibration value a21[7:0]

LED modulation Calibration value a23[7:0]

LED modulation Calibration value a31[7:0]

LED modulation Calibration value a32[7:0]

0xFF

Data 3

Data 4

Data 5

Data 6

Data 7

Data 8

Checksum

Classic Checksum over data

www.onsemi.com

31

NCV7430

Set_OTP_Param

This command is used for programming the individual bytes of the OTP memory. The OTP address is the pointer to the byte

in OTP (refer to Table 8 OTP memory structure).

Used is a four byte command structure.

Table 28. Set_OTP_Param WRITING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

1

0

1

AD[5:0]

0xFF

Data 2

Data 3

1

OTP address pointer[3:0]

Data 4

OTP contents [7:0]

Checksum

Classic Checksum over data

Sleep

This command is provided to the circuit by the LIN master to put all the slave nodes connected to the LIN bus into sleep mode.

See LIN 2.1 specification and Sleep Mode. The corresponding LIN frame is a master request command frame (identifier 0x3C)

with data byte 1 containing 0x00 while the followings contain 0xFF.

Table 29. SLEEP WRITING FRAME

Structure

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Byte

Content

Identifier

Data 1

0

1

2

3

4

5

6

7

8

9

0

1

0

0x00

0xFF

Data 2

Data 3

Data 4

Data 5

Data 6

Data 7

Data 8

Checksum

Classic Checksum over data

www.onsemi.com

32

NCV7430

APPLICATIONS INFORMATION

High Current LEDs

network comprised of a resistor in series with a schottky

diode in parallel with another resistor as shown in Figure 13.

The NCV7430 is designed to drive RGB LEDs up to

currents of 30 mA per channel. The system capability can be

increased to drive higher current LEDs by configuring the

device with an external PNP transistor as shown in

Figure 12. In this setup, all the LED current is external to the

device. Output current is limited by the base drive to the PNP

(30 mA) and the beta of the PNP. Operation is controlled by

the external feedback provided by R3 through R2 to the

device pin LEDxR.

R

redled

sets the nominal LED current and the Schottky diode

with the series resistor (R1) sets the temperature behavior.

The NCV7430 uses a bandgap referenced circuit for

creating the programming reference voltage on the LEDxR

pins. The bandgap reference voltage targets to maintain a

zero TC voltage.

If the system design is able to correlate the red LED

temperature to the NCV7430 IC temperature, there is a

potential to create a compensation for these thermal effects.

Starting with the zero temperature coefficient reference

voltage on the LED1R pin, we can break up the voltage into

two components by mandating a negative temperature

coefficient associated with one component, and leave a

positive temperature coefficient associated with the other

component. This is done by adding a schottky diode in series

with the programming resistor on the LED1R pin. The

negative temperature coefficient of the schottky diode

creates an overall positive temperature coefficient on the

resistor in series. The system designer should consider the

resulting positive voltage temperature coefficient with the

discrete resistor temperature coefficient to obtain the desired

temperature performance. Note, a schottky diode is required

over p−n junction diodes due to the low voltage on the

LED1R pin (325 mV [typ]).

VBB

ANODE

R1

LEDxC

NCV7430

NJVMJD253T4G

10 ohm

R2

LEDxR

10 ohm

R3

1.2ohm

GND

Figure 12. Using the NCV7430 with Higher Current

LEDs

VBB

ANODE

D1

D2

D3

LED1C

LED2C

LED3C

Temperature Correction

Light output from LEDs change with temperature. As

temperature increases, light output goes down. The

magnitude of change typically depends on the type of LEDs

which are used. Red LEDs are typically manufactured using

AlInGaP while green and blue LEDs are typically

manufactured using AlInGaN. These processing differences

result in the red LED temperature sensitivity being much

more sensitive than the green or blue LEDs. As a result, the

green and blue LEDs do not require any corrective

adjustments while the red LEDs require the drive current to

be increased as temperature goes up to keep a constant light

output.

LED3R

LED2R

LED1R

D4

NCV7430

R1*

R

*

R3*

10 W

R4*

10 W

redled

GND

Figure 13. External Temperature Compensation

*R3, R4 = 10 W for 30 mA LED current.

values dependent on application.

R1, D4 set the LED current temperature coefficient.

R1, R

redled

Temperature correction can be implemented using the

current programming pin, LED1R by using a programming

www.onsemi.com

33

NCV7430

PACKAGE DIMENSIONS

SOIC−14 NB

CASE 751A−03

ISSUE K

NOTES:

D

A

B

1. DIMENSIONING AND TOLERANCING PER

ASME Y14.5M, 1994.

2. CONTROLLING DIMENSION: MILLIMETERS.

3. DIMENSION b DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE PROTRUSION

SHALL BE 0.13 TOTAL IN EXCESS OF AT

MAXIMUM MATERIAL CONDITION.

4. DIMENSIONS D AND E DO NOT INCLUDE

MOLD PROTRUSIONS.

14

8

7

A3

E

H

5. MAXIMUM MOLD PROTRUSION 0.15 PER

SIDE.

L

DETAIL A

1

MILLIMETERS

DIM MIN MAX

INCHES

MIN MAX

13X b

M

B

0.25

A

A1

A3

b

D

E

1.35

0.10

0.19

0.35

8.55

3.80

1.75 0.054 0.068

0.25 0.004 0.010

0.25 0.008 0.010

0.49 0.014 0.019

8.75 0.337 0.344

4.00 0.150 0.157

M

S

B

0.25

C A

DETAIL A

h

A

X 45

_

e

H

h

L

1.27 BSC

0.050 BSC

6.20 0.228 0.244

0.50 0.010 0.019

1.25 0.016 0.049

5.80

0.25

0.40

0

M

A1

e

M

7

0

7

_

SEATING

PLANE

C

SOLDERING FOOTPRINT*

6.50

14X

1.18

1

1.27

PITCH

14X

0.58

DIMENSIONS: MILLIMETERS

*For additional information on our Pb−Free strategy and soldering

details, please download the ON Semiconductor Soldering and

Mounting Techniques Reference Manual, SOLDERRM/D.

ON Semiconductor and

are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent

coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,

regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer

application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not

designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification

in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized

application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and

expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such

claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This

literature is subject to all applicable copyright laws and is not for resale in any manner.

PUBLICATION ORDERING INFORMATION

LITERATURE FULFILLMENT:

N. American Technical Support: 800−282−9855 Toll Free

USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5817−1050

ON Semiconductor Website: www.onsemi.com

Order Literature: http://www.onsemi.com/orderlit

Literature Distribution Center for ON Semiconductor

19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA

Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada

Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada

Email: orderlit@onsemi.com

For additional information, please contact your local

Sales Representative

◊

NCV7430/D

www.onsemi.com

34


型号：	NCV7430_17
厂家：	ONSEMI
描述：	Automotive LIN RGB LED Driver
文件：	总34页 (文件大小：274K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

NCV7430_17 [ONSEMI]

相关型号：

NCV7441

NCV7441D20G

NCV7441D20R2G

NCV7446MW0R2G

NCV7450DB0R2G

NCV7451MW0R2G

NCV7462

NCV7462DQ0R2G

NCV7462DQ1R2G

NCV7462_1

NCV7462_16

NCV7471