CAT4016 [ONSEMI]
16-Channel Constant Current LED Driver; 16通道恒流LED驱动器
| 型号： | CAT4016 |
| 厂家： | 
ONSEMI |
| 描述： | 16-Channel Constant Current LED Driver |
| 文件： | 总14页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CAT4016
16-Channel Constant
Current LED Driver
Description
The CAT4016 is a 16 channel constant current driver for LED
billboard and other general display applications. LED channel
currents are programmed together via an external RSET resistor. Low
output voltage operation on the LED channels as low as 0.4 V (for 2 to
100 mA LED current) allows for more power efficient designs.
A high−speed 4−wire serial interface of up to 25 MHz clock
frequency controls each individual channel using a shift register and
latch configuration. A serial output data pin (SOUT) allows multiple
devices to be cascaded and programmed via one serial interface. The
device also includes a blanking control pin (BLANK) that can be used
to disable all channels independently of the interface.
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SOIC−24
W SUFFIX
TSSOP−24
Y SUFFIX
CASE 751BK
CASE 948AR
Thermal shutdown protection is incorporated in the device to
disable the LED outputs if the die temperature exceeds a set limit.
The device is available in the 24−lead SOIC, TSSOP, QSOP and the
compact TQFN 4 x 4 mm packages.
QSOP−24
VS, VSR SUFFIX
CASE 492AB
TQFN−24
HV6 SUFFIX
CASE 510AM
Features
MARKING DIAGRAMS (Top Views)
SOIC−24
TSSOP−24
• 16 Constant Current−sink Channels
• Serial Interface up to 25 MHz Clock Frequency
• 3 V to 5.5 V Logic Supply
A3B
CAT4016WO
FYMXXXX
OAB
CAT4016YO
3YMXXX
• LED Current Range from 2 mA to 100 mA
• LED Current set by External RSET Resistor
• 300 mV LED Dropout at 30 mA
CAT4016W =
CAT4016W−T1
CAT4016Y =
CAT4016Y−T2
• Thermal Shutdown Protection
• Available in 24−lead SOIC, TSSOP, QSOP, and 4 x 4 mm TQFN
4016VS
3YYWWB
4016VSR
3YYWWB
QSOP−24
TQFN−24
Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
4016VS =
CAT4016VS−T2
4016VSR =
CAT4016VSR−T2
Applications
LAAA
AXXX
YMCC
LAAD
AXXX
YMCC
• Billboard Display
• Marquee Display
• Instrument Display
• General Purpose Display
LAAA =
CAT4016HV6−T2
LAAD =
CAT4016HV6−GT2
A = Assembly Location
3 = Lead Finish − Matte−Tin
B = Product Revision (Fixed as “B”)
O = Leave Blank
F = Fab Code
Y or YY = Production Year (Last 1 or 2 Digits)
M = Production Month (1−9, A, B, C)
WW = Production Week (01 − 52)
CC = Country Code (Last Two Digits)
XXX or XXXX = Last 3 or 4 Digits
XXX or XXXX = of Assembly Lot Number
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
© Semiconductor Components Industries, LLC, 2010
1
Publication Order Number:
April, 2010 − Rev. 4
CAT4016/D
CAT4016
PIN CONNECTIONS
1
1
GND
SIN
VDD
LED15
LED14
LED13
LED12
LED11
LED10
LED9
LED8
LED7
LED6
LED5
LED4
LED3
RSET
SOUT
BLANK
LED16
LED15
LED14
LED13
LED12
LED11
LED10
LED9
1
LED16
BLANK
SOUT
RSET
VDD
CLK
LED14
GND
LATCH
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
SIN
CLK
LATCH
LED1
LED2
LED13
LED12
LED11
LED10
LED9
GND
SIN
CLK
LATCH
LED1
LED2
24−Lead SOIC (W), TSSOP (Y),
24−Lead QSOP (VSR)
(Top Views)
QSOP (VS)
24−Lead TQFN (HV6)
VIN
3 V to
5.5 V
20 mA
1 mF
VDD LED1 LED2
LED16
BLANK
to next
device
LATCH
SIN
CAT4016
SOUT
RSET
CLK
3 kW
GND
Figure 1. Typical Application Circuit
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Units
V
Supply Voltage
6
V
V
DD
Logic input/output voltage (SIN, SOUT, CLK, BLANK, LATCH)
LEDn voltage
−0.3 V to V +0.3 V
DD
6
V
DC output current on LED1 to LED16
Storage Temperature Range
150
mA
_C
_C
_C
−55 to +160
−40 to +150
300
Junction Temperature Range
Lead Soldering Temperature (10 sec.)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameter
Range
3.0 to 5.5
0.4 to 5.5
up to 100
−40 to +85
Units
V
V
DD
Voltage applied to LED1 to LED16
LED current RSET control range
Ambient Temperature Range
V
mA
_C
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CAT4016
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(V = 5.0 V, T
= 25°C, over recommended operating conditions unless specified otherwise.)
DD
AMB
Symbol
Name
Conditions
Min
Typ
Max
Units
DC CHARACTERISTICS
I
LED Current (any channel)
18
36
20
22
44
mA
V
= 1 V, R
= 3 kW
LED−ACC
LED
SET
V
LED
= 1 V, R
= 1.5 kW
40
SET
V
= 1 V, R
= 750 W
= 3 kW
80
LED
SET
I
LED Current Matching
1.5
1.5
2.0
0.1
%
V
= 1 V, R
SET
LED−MAT
LED
(I
LED
− I
) / I
LEDAVR LEDAVR
V
LED
= 1 V, R
= 1.5 kW
= 750 W
−6.0
+6.0
SET
V
LED
= 1 V, R
SET
ΔI
LED current regulation vs. V
V within 4.5 V and 5.5 V
DD
% / V
% / V
mA
VDD
DD
LED current 30 mA
V within 1 V and 3 V
LED
ΔI
VLED
LED current regulation vs. V
0.05
LED
LED current 30 mA
I
Supply Current (all outputs off)
Supply Current (all outputs on)
3
8.5
4
8
9
R
= 3 kW
= 750 W
= 3 kW
DDOFF
SET
R
SET
I
mA
R
DDON
SET
SET
R
= 750 W
10
I
LEDn output Leakage
LATCH Pull−down Resistance
BLANK Pull−up Resistance
V
LED
= 5 V, outputs off
−1
1
mA
kW
kW
V
LKG
R
R
100
100
180
180
300
300
LATCH
BLANK
V
V
Logic high input voltage
Logic low input voltage
0.7xV
IH
DD
0.3xV
IL
DD
V
HYS
Logic input hysteresis voltage
0.1xV
V
DD
I
IL
Logic Input leakage current
(CLK, SIN)
V = V or GND
−5
0
5
mA
I
DD
V
V
SOUT logic high output voltage
SOUT logic low output voltage
I
= −1 mA
= 1 mA
V −0.3 V
CC
V
OH
OH
I
OL
0.3
OL
V
RSET Regulated Voltage
Thermal Shutdown
1.17
1.20
160
20
1.23
V
RSET
T
°C
°C
SD
T
HYST
Thermal Hysteresis
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CAT4016
Table 4. TIMING CHARACTERISTICS
(For 3.0 V ≤ V ≤ 5.5 V, T
= 25°C, unless specified otherwise.)
DD
AMB
Min
Typ
Max
(Note 1)
(Note 2)
(Note 1)
Symbol
CLK
Name
Conditions
Units
f
CLK Clock Frequency
CLK Pulse Width High
CLK Pulse Width Low
25
MHz
ns
clk
t
20
20
cwh
t
ns
cwl
SIN
t
Setup time SIN to CLK
Hold time SIN to CLK
4
4
ns
ns
ssu
t
sh
LATCH
t
LATCH Pulse width
20
4
ns
ns
ns
lwh
T
Hold time LATCH to CLK
Setup time LATCH to CLK
lh
T
Channel Stagger Delay
800
lsu
LEDn
t
LED1 Propagation delay
LATCH to LED1 off/on
LED(n) to LED(n+1)
40
17
300
40
ns
ns
ns
ns
ns
ns
ld
t
LED Propagation delay stagger
LED Propagation delay stagger total
BLANK Propagation delay
ls
t
lst
LED1 to LED16
250
60
t
bd
BLANK to LED(n) off/on
Pull−up resistor = 50 W to 3.0 V
Pull−up resistor = 50 W to 3.0 V
300
200
250
t
LED rise time (10% to 90%)
LED fall time (90% to 10%)
40
lr
t
30
lf
SOUT
t
SOUT rise time (10% to 90%)
SOUT fall time (90% to 10%)
Propagation delay time SOUT
C = 15 pF
5
5
ns
ns
ns
or
L
t
C = 15 pF
L
of
t
od
CLK to SOUT
8
15
25
1. All min and max values are guaranteed by design.
2. V = 5 V, LED current 30 mA.
DD
1 mF
VDD
VDD
Rp
Rp
50 W
LED1
BLANK
LATCH
SIN
50 W
CAT4016
LED16
SOUT
V1
CLK
Cl
3 V
RSET
GND
15 pF
RSET
Figure 2. Test Circuit for AC Characteristics
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CAT4016
1/f
clk
CLK
SIN
t
t
sh
t
t
cwh
ssu
cwl
t
od
SOUT
LATCH
t
lh
t
lsu
t
lwh
Figure 3. Serial Input Timing Diagram
t
ld
LATCH
t
bd
BLANK
LED1
t
ls
LED2
t
lst
= 15 t
ls
LED16
Figure 4. LED Output Timing Diagram
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CAT4016
TYPICAL PERFORMANCE CHARACTERISTICS
(V = 5.0 V, LED current 30 mA, all LEDs On, T
= 25°C unless otherwise specified.)
DD
AMB
70
60
6.0
5.5
5.0
4.5
4.0
ALL LED’s ON
ALL LED’s OFF
50
40
30
20
3.5
3.0
10
0
0
0.3
0.6
0.9
1.2
1.5
5.5
5.5
3.0
3.5
4.0
VDD (V)
4.5
5.0
5.5
LED PIN (V)
Figure 5. LED Current vs. LED Pin Voltage
Figure 6. Supply Current vs. VDD Pin Voltage
31.5
31.0
30.5
30.0
29.5
12
10
8
ALL LED’s ON
ALL LED’s OFF
6
4
29.0
28.5
2
0
3.0
3.5
4.0
VDD (V)
4.5
5.0
0
0.5
1.0
1.5
2.0
RSET CURRENT (mA)
Figure 7. LED Current vs. VDD Pin Voltage
Figure 8. Supply Current vs. RSET Current
1.30
1.25
1.20
100
80
60
40
1.15
1.10
20
0
3.0
3.5
4.0
VDD (V)
4.5
5.0
0.1
1
10
100
RSET (kW)
Figure 9. RSET Voltage vs. VDD Pin Voltage
Figure 10. LED Current vs. RSET Resistor
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CAT4016
TYPICAL PERFORMANCE CHARACTERISTICS
(V = 5.0 V, LED current 30 mA, all LEDs On, T
= 25°C unless otherwise specified.)
DD
AMB
1.30
1.25
1.20
31.5
31.0
30.5
30.0
29.5
1.15
1.10
29.0
28.5
−50
0
50
TEMPERATURE (°C)
100
150
−50
0
50
100
150
TEMPERATURE (°C)
Figure 11. RSET Voltage vs. Temperature
Figure 12. LED Current vs. Temperature
30
25
20
15
30
25
20
15
10
10
5
0
5
0
0
1
2
3
4
5
0
1
2
3
4
5
LATCH VOLTAGE (V)
BLANK VOLTAGE (V)
Figure 13. Internal Pull−Down Current
Figure 14. Internal Pull−Up Current
(LATCH Pin)
(BLANK Pin)
100
80
60
40
20
0
0
5
10
15
20
25
30
LED CURRENT (mA)
Figure 15. PWM Dimming on BLANK Pin
(f = 10 kHz)
Figure 16. BLANK Transient Response
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CAT4016
Table 5. PIN DESCRIPTION
Name
Function
GND
Ground
SIN
Serial data input pin
Serial clock input pin
CLK
LATCH
Latch serial data to output registers
LED channel 1 to 16 cathode terminals
Enable / disable all channels
Serial data output pin.
LED1−LED16
BLANK
SOUT
RSET
LED current set pin
VDD
Positive supply Voltage
TAB (TQFN package only)
Connect to GND on the PCB
Pin Function
GND is the ground reference pin for the device. This pin
must be connected to the ground plane on the PCB.
BLANK is the LED channel enable and disable input pin.
When low, LEDs are enabled according to the output latch
register content. When high, all LEDs are off, while
preserving the data in the output latch register.
SIN is the serial data input. Data is loaded into the internal
register on each rising edge of CLK.
SOUT is the serial data output of the 16−bit serial shift
register. This pin is used to cascade several devices on the
serial bus. The SOUT pin is then connected to the SIN input
of the next device on the serial bus to cascade.
CLK is the serial clock input. On each rising CLK edge, data
is transferred from SIN to the internal 16−bit serial shift
register.
LATCH is the latch data input. On the rising edge of
LATCH, data is loaded from the 16−bit serial shift register
into the output register latch. On the falling edge, this data
is latched in the output register and isolated from the state of
the serial shift register.
RSET is the LED current setting pin. A resistor is connected
between this pin and ground. Each LED channel current is
set to 50 times the current pulled out of the pin. The RSET
pin voltage is regulated to 1.2 V.
VDD is the positive supply pin voltage for the entire device.
A small 1 mF ceramic is recommended close to pin.
LED1 – LED16 are the LED current sink channels. These
pins are connected to the LED cathodes. The current sinks
drive the LEDs with a current equal to 50 times RSET pin
current. For the LED sink to operate correctly, the voltage on
the LED pin must be above 0.4 V.
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CAT4016
Block Diagram
LED1 LED2 LED3
LED16
VDD
+
VIN
CURRENT
SINKS
RSET
GND
Current
Setting
BLANK
LATCH
1.2 V Ref
LATCHES
L1
S1
L2
S2
L3
S3
L16
S16
SHIFT
REGISTER
SOUT
SIN
CLK
Figure 17. CAT4016 Functional Block Diagram
Basic Operation
The CAT4016 uses 16 tightly matched current sinks to
accurately regulate the LED current in each channel. The
Pull−up and pull−down resistors are internally provided to
set the state of the BLANK and LATCH pins to the off−state
when not externally driven.
external resistor, R , is used to set the LED channel
SET
current to 50 times the current in R
.
SET
Serial Interface
1.2
RSET
LED current + 50
A high−speed serial 4−wire interface is provided to
program the state of each LED on or off. The interface
contains a 16−bit serial to parallel shift register (S1−S16)
and a 16−bit latch (L1−L16). Programming the serial to
parallel register is accomplished via SIN and CLK input
pins. On each rising edge of the CLK signal, the data from
SIN is moved through the shift register serially. Data is also
moved out of SOUT which can be connected to a next device
if programming more than one device on the same interface.
On the rising edge of LATCH, the data contents of the
serial to parallel shift register is reflected in the latches. On
the falling edge of LATCH, the state of the serial to parallel
register at that particular time is saved in the latches and does
not change irrespective of the contents of the serial to
parallel register.
Tight current regulation for all channels is possible over
a wide range of input and LED voltages due to independent
current sensing circuitry on each channel. The LED
channels have a maximum dropout of 0.4 V for most current
and supply voltage conditions. This helps improve the heat
dissipation and efficiency of the LED driver.
Upon power−up, an under−voltage lockout circuit clears
all latches and shift registers and sets all outputs to off. Once
the under−voltage lockout threshold has been reached the
device can be programmed.
The driver delays the activation of each consecutive LED
output channel by 17 ns (typical). Relative to LED1, LED2
is delayed by 17 ns, LED3 by 34 ns and LED16 by 250 ns
typical. The delay is introduced when LATCH is activated.
The delay minimizes the inrush current on the LED supply
by staggering the turn on and off current spikes over a period
of time and therefore allowing usage of smaller bypass
capacitors.
BLANK is used to disable all LEDs (turn off)
simultaneously while maintaining the same data in the latch
register. When low, the LED outputs reflect the data in the
latches. When high, all outputs are high impedance (zero
current).
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CAT4016
PACKAGE DIMENSIONS
SOIC−24, 300 mils
CASE 751BK−01
ISSUE O
SYMBOL
MIN
NOM
MAX
2.65
0.30
2.55
0.51
0.33
15.40
10.51
7.60
2.35
A
A1
A2
b
0.10
2.05
0.31
0.20
15.20
10.11
7.34
E1
E
c
D
E
E1
e
1.27 BSC
h
0.25
0.40
0º
0.75
1.27
8º
L
b
e
θ
PIN#1 IDENTIFICATION
5º
15º
θ1
TOP VIEW
h
D
h
q1
A2
q
A
q1
L
c
A1
SIDE VIEW
END VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MS-013.
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CAT4016
PACKAGE DIMENSIONS
TSSOP24, 4.4x7.8
CASE 948AR−01
ISSUE A
b
SYMBOL
MIN
NOM
MAX
A
A1
A2
b
1.20
0.15
1.05
0.30
0.20
7.90
6.55
4.50
0.05
0.80
0.19
0.09
7.70
6.25
4.30
c
E1
E
D
7.80
6.40
E
E1
e
4.40
0.65 BSC
0.60
L
0.50
0.70
L1
1.00 REF
0º
8º
θ
e
TOP VIEW
D
c
A2
A
θ1
L
A1
L1
SIDE VIEW
END VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-153.
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CAT4016
PACKAGE DIMENSIONS
QSOP−24, 150 mils
CASE 492AB−01
ISSUE O
D
SYMBOL
MIN
NOM
MAX
1.37
A
A1
b
1.73
0.25
0.30
0.25
8.74
6.19
3.98
0.10
0.20
0.19
8.56
5.82
3.81
c
D
E
E1 E
E1
e
0.635 BSC
h
0.28
0.41
0.48
0.86
L
L2
θ1
θ2
0.254 BSC
0º
8º
7º BSC
e
b
TOP VIEW
h
q2
A
q1
L
c
L2
A1
END VIEW
SIDE VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-137.
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CAT4016
PACKAGE DIMENSIONS
TQFN24, 4x4 AR
CASE 510AM−01
ISSUE O
A
D
DETAIL A
E
E2
PIN#1 ID
D2
PIN#1 INDEX AREA
A1
TOP VIEW
SIDE VIEW
BOTTOM VIEW
SYMBOL
MIN
0.70
0.00
NOM
MAX
0.80
0.05
b
e
A
A1
A3
b
0.75
−
0.20 REF
0.25
L
0.20
2.40
2.40
0.30
0.30
2.90
2.90
0.50
D
4.00 BSC
−
DETAIL A
D2
E
4.00 BSC
−
E2
e
0.50 BSC
−
L
A
Notes:
(1) All dimensions are in millimeters.
(2) Complies with JEDEC MO-220.
(3) Minimum space between leads and flag cannot be smaller than 0.15 mm.
A3
FRONT VIEW
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CAT4016
Example of Ordering Information (Note 4)
Prefix
Device #
Suffix
CAT
4016
HV6
− G
T2
Company ID
(Optional)
Product Number
Package
W: SOIC
Lead Finish
G: NiPdAu
Tape & Reel (Note 10)
T: Tape & Reel
4016
Y: TSSOP
VS: QSOP
Blank: Matte−Tin
1: 1,000 / Reel (Note 7)
2: 2,000 / Reel
VSR: QSOP (Note 6)
HV6: TQFN
Table 6. ORDERING INFORMATION
Part Number
CAT4016W-T1
Package
Quantity per Reel
Package Marking
SOIC24 (Note 8)
TSSOP24 (Note 8)
QSOP24 (Note 8)
QSOP24 (Note 8)
TQFN24 (Note 8)
TQFN24 (Note 9)
1,000
2,000
2,000
2,000
2,000
2,000
CAT4016W
CAT4016Y
4016VS
4016VSR
LAAA
CAT4016Y-T2
CAT4016VS-T2
CAT4016VSR-T2
CAT4016HV6-T2
CAT4016HV6-GT2
LAAD
3. All packages are RoHS−compliant (Lead−free, Halogen−free).
4. The device used in the above example is a CAT4016HV6−GT2 (TQFN, NiPdAu, Tape & Reel, 2,000/Reel).
5. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office.
6. Different pin outs, see page 2.
7. SOIC package availability in 1,000/Reel. All other packages are 2,000/Reel.
8. Matte−Tin Plated Finish (RoHS−compliant).
9. NiPdAu Plated Finish (RoHS−compliant).
10.For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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.
“Typical” parameters which may be provided in SCILLC 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. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
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