ENA0943 [SANYO]
For Cellular Phone LED Driver; 蜂窝电话LED驱动器
| 型号： | ENA0943 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | For Cellular Phone LED Driver |
| 文件： | 总14页 (文件大小：125K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA0943
Bi-CMOS IC
For Cellular Phone
LV5207LP
LED Driver
Overview
The LV5207LP is an LED driver IC for cellular phones. It incorporates 7 LED drivers (tricolor and main) and a charge
pump circuit. The LV5207LP allows each LED current value to be regulated by a serial bus and has a function to
synchronize a ringtone melody.
Functions
• Charge pump
×1/×1.5 mode switchover
The mode switches (step-up only and no step down) when the LED pin voltage goes down. When VBAT is 4.6V and
above, this IC becomes only ×1 mode.
• LED drivers
Main LCD backlight LED×4 (LED current 5-bit changeover 0.8mA to 19.4mA)
Tricolor LED driver×1 (LED current 5-bit changeover 0.8mA to 19.4mA
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum pin voltage
Symbol
max
Conditions
Ratings
Unit
V
V
4.5
7
CC
V1 max
Pd max
Topr
LED driver and change pump blocks
Mounted on a board*
V
Allowable power dissipation
Operating temperature
Storage temperature
0.8
W
-30 to +75
-40 to +125
°C
°C
Tstg
* Designated board : 40mm×50mm×0.8mm, glass epoxy 4-layer board (2S2P)
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
's products or
equipment.
22008 MS PC 20070220-S00003 No.A0943-1/14
LV5207LP
Recommended Operating Conditions at Ta = 25°C
Parameter
Supply voltage 1
Supply voltage 2
Symbol
Conditions
Ratings
Unit
V
V
3.0 to 4.5
1.7 to V
BAT
V
V
DD
BAT
Electrical Characteristics Ta = 25°C, V
BAT
= 3.7V
Ratings
typ
Parameter
Current drain
Symbol
Conditions
Unit
min
max
I
I
I
1
2
3
STBY : L (standby mode)
STBY : H (sleep mode)
Charge pump opetates.
0
5
5
7
µA
µA
CC
CC
CC
0.3
4
mA
Charge pump block
Output voltage
V
1
2
I
I
= 100mA, ×1
3.4
4.7
V
V
O
O
O
V
= 100mA, ×1.5
O
Load current
×1.5 mode
120
mA
Charge pump switchover voltage
Threshold voltage 1
Charge pump clock block
Clock frequency
VD1
LED pin voltage, when main current is set to 20mA
0.32
400
0.35
500
0.38
600
V
Fosc
kHz
LED driver block
Minimum output current 1
Minimum output current 3
Maximum output current 1
Maximum output current 3
Nonlinearity error
I
1
Tricolor LED driver serial data = #00
Main LED driver serial data = #00
Tricolor LED driver serial data = #FF
Main LED driver serial data = #FF
*1
0.2
0.2
18.4
18.4
-2
0.8
0.8
1.7
1.7
20.4
20.4
2
mA
mA
mA
mA
LSB
LSB
%
MIN
I
3
MIN
I
I
1
3
19.4
19.4
MAX
MAX
LE
Differential linearity error
Maximum output current 1
DLE
*2
-2
2
∆IL1
∆IL3
IL1
Tricolor LED driver maximum current setting
-10
V
= 4 to 0.35V
O
Maximum output current 3
Leakage current 1
Main LED driver maximum current setting
= 2 to 0.35V
-10
%
V
O
Tricolor LED driver and LED driver : OFF
= 5V
1
1
µA
µA
V
O
Leakage current 3
IL3
Main LED driver and LED driver : OFF
= 5V
V
O
Control circuit block
H level 1
V
H1
L1
Input H level serial, SCTL
Input L level serial, SCTL
Input H level reset
V
×0.8
0
V
V
V
V
IN
DD
L level 1
V
V
V
×0.2
IN
DD
H level 2
H2
1.5
0
IN
L level 2
V
L2
Input L level reset
0.3
IN
*1 Nonlinearity error : Error from the ideal current value.
*2 Differential linearity error : Error from the ideal increment when increase by a 1 bit is made.
No.A0943-2/14
LV5207LP
Package Dimensions
unit : mm (typ)
3322
SIDE VIEW
TOP VIEW
3.5
BOTTOM VIEW
(0.125)
13
18
12
7
(C0.116)
19
24
6
1
(0.5)
0.5
SIDE VIEW
0.25
SANYO : VCT24(3.5X3.5)X01
Pin Assignment
24
23
22
21
20
19
TEST
SCTL
RT
1
2
3
4
5
6
18 PV
CC
17 V
DD
16 SDATA
15 SCLK
LV5207LP
SGND
CPTC
RLED
Top view
14 RESET
13 MLED4
7
8
9
10
11
12
No.A0943-3/14
LV5207LP
Block Diagram and Sample Application Circuit
2.2µF
V
4.7µF
BAT
2.2µF
2.2µF
24
23
22
21
20
19
1
2
3
4
5
6
18
17
16
15
14
13
Charge pump ×1/×1.5
TEST
SCTL
PV
CC
V
DD
47kΩ
IREF
RT
SDATA
SCLK
SGND
0.01µF
CPTC
RLED
RESET
MLED4
LED DRIVER
7
8
9
10
11
12
* The value of the external capacitor connected to the charge pump circuit can be reduced depending on the load current.
The minimum rating of the Load current doesn't increase even if 2.2µF or more capacitor is used.
Pin Functions
Pin No.
Pin name
Pin Description
Test signal input pin.
Equivalent Circuit
1
TEST
PV
CC
Be sure to connect the pin to GND.
2
3
4
SCTL
External tricolor LED control pin.
V
DD
When serial RSW, GSW, and BSW are set to ON,
setting the application voltage H causes tricolor LED to
go ON. When the application voltage set to L, tricolor
LED goes OFF. Note that if the setial setting STLEN is
set to ignore SCTL, tricolor LED goes ON regardless of
the state of SCTL.
RT
Reference current setting resistor connection pin.
By connecting the external resistor between this pin and
GND, the reference current is generated. The pin
voltage is about 1V. Change of this current value
enebles change of the oscillation frequency and LED
driver current value.
PV
CC
SGND
GND pin for circuits other than the power circuit
Continued on next page.
No.A0943-4/14
LV5207LP
Continued from preceding page.
Pin No.
5
Pin name
CPTC
Pin Description
Equivalent Circuit
Charge pump soft start capacitor connection pin.
By connecting the capacitor, charge pump can be soft
started. The pin is held high in STBY mode or when the
charge pump output is short-circuited.
PV
CC
1kΩ
6
7
8
RLED
GLED
BLED
Tricolor LED driver pins.
Feedback is applied so that the current flow through the
output transistor becomes equal to the set current
value. Each driver output current value can be adjusted
independently with the 0.6 step from about 0.8mA to
19.4mA through serial setting. These pins are turned
ON only when the SCTL pin is set high or the serial
SCTEN pin is set to ignore SCTL. These pins function
as the charge pump switchover detection pin from ×1
mode to ×1.5 mode. Pin voltage of about 0.5V or lower
switches the charge pump to ×1.5 mode.
9
LEDGND1
GND pin dedicated to LED driver.
10
11
12
13
MLED1
MLED2
MLED3
MLED4
Main LCD backlight LED driver pin.
Feedback is applied so that the current flow through the
output transistor becomes equal to the set current
value. The driver current value can be adjusted with
0.6mA step from aboput 0.8mA to 19.4mA through
serial setting. These pins function as the charge pump
switchover detection pin from ×1 mode to ×1.5 mode.
When MAX current is set, the pin voltage of about
0.35V or lower switches the charge pump to ×1.5 mode.
If three MLED are used, MLED4 can be independently
set ON/OFF with serial setting. Note that MLED4 :ON is
active only with MSW:ON. Connect MLED4 pin to VBAT
when it is not to be used.
14
RESET
Reset signal input pin.
PV
CC
The pin is in the reset state when it is set to L.
15
16
17
SCLK
Serial clock input pin
V
DD
SDATA
Serial data signal input pin.
V
DD
V
Power pin for SCLK, SDATA, and SCTL pin input
DD
circuits.
18
19
PV
CC
Power pin
PGND
GND pin for charge pump circuit
Continued on next page.
No.A0943-5/14
LV5207LP
Continued from preceding page.
Pin No.
Pin name
1A
Pin Description
Charge pump clock driver pin.
Equivalent Circuit
20
21
PV
CC
2A
22
23
24
1B
Charge pump charge transfer driver pin.
OUT
Charge pump output pin.
2B
Charge pump charge transfer driver pin.
No.A0943-6/14
LV5207LP
Serial Bus Communication Specifications
I2C serial transfer timing conditions
twH
SCL
th1
twL
th2
tbuf
SDA
th1
ts2
ts1
ts3
Start condition
Resend start condition
Stop condition
ton
tof
Input waveform condition
Standard mode
Parameter
SCL clock frequency
Data setup time
symbol
Conditions
min
typ
max
unit
kHz
µs
ns
fscl
ts1
ts2
ts3
th1
th2
twL
twH
ton
tof
SCL clock frequency
0
100
SCL setup time relative to falling edge of SDA
SDA setup time relative to rising edge of SCL
SCL setup time relative to rising edge of SDA
SCL hold time relative to rising edge of SDA
SDA hold time relative to falling edge of SCL
SCL pulse width for the L period
4.7
250
4.0
4.0
0
µs
µs
µs
µs
µs
ns
Data hold time
Pulse width
4.7
4.0
SCL pulse width for the H period
Input waveform conditions
Bus free time
SCL, SDA (input) rise time
1000
300
SCL, SDA (input) fall time
ns
tbuf
Time between STOP and START conditions
4.7
µs
High-speed mode
Parameter
SCL clock frequency
Data setup time
Symbol
fscl
ts1
Conditions
SCL clock frequency
min
typ
max
unit
kHz
µs
ns
0
0.6
100
0.6
0.6
0
400
SCL setup time relative to falling edge of SDA
SDA setup time relative to rising edge of SCL
SCL setup time relative to rising edge of SDA
SCL hold time relative to rising edge of SDA
SDA hold time relative to falling edge of SCL
SCL pulse width for the L period
ts2
ts3
µs
µs
µs
µs
µs
ns
Data hold time
th1
th2
Pulse width
twL
twH
ton
1.3
0.6
SCL pulse width for the H period
Input waveform conditions
Bus free time
SCL, SDA (input) rise time
300
300
tof
SCL, SDA (input) fall time
ns
tbuf
Time between STOP and START conditions
1.3
µs
No.A0943-7/14
LV5207LP
I2C bus transmission method
Start and stop conditions
In the I2C bus, SDA must basically be kept in the constant state while SCL is "H" as shown below during data
transfer.
SCL
SDA
ts2
th2
When data transfer is not made, both SCL and SDA are in the "H" state.
When SCL = SDA = "H", change of SDA from "H" to "L" enables the start conditions to start access.
When SCL is "H", change of SDA from "L" to "H" enables the stop conditions to stop access.
Start condition
Stop condition
SCL
SDA
th1
ts3
Data transfer and acknowledgement response
After establishment of start conditions, data transfer is made by one byte (8 bits).
Data transfer enables continuous transfer of any number of bytes.
Each time the 8-bit data is transferred, the ACK signal is sent from the receive side to the send side.
The ACK signal is issued when SDA on the send side is released and SDA on the receive side is set "L" immediately
after fall of the clock pulse at the SCL eighth bit of data transfer to "L".
When the next 1-byte transfer is left in the receive state after transmission of the ACK signal from the receive side,
the receive side releases SDA at fall of the SCL ninth clock.
In the I2C bus, there is no CE signal. Instead, 7-bit slave address is assigned to each device and the first byte of
transfer is assigned to the command (R/W) representing the 7-bit slave address and subsequent transfer direction.
Note that only WRITE is valid in LV5207LP.
The 7-bit address is transferred sequentially from MSB and the eight bit is "L" representing WRITE.
In LV5207LP, the slave address is specified as (1110101).
M
S
B
L
S
B
A
C
K
M
S
B
L
S
B
A
C
K
M
S
B
L
S
B
A
C
K
W
Start
Slave address
Register address
Data
STOP
SCL
SDA
(WRITE)
1
1
1
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
1
No.A0943-8/14
LV5207LP
Serial modes setting
Address
Data
0
0
0
0
0
0
0
0
D7
D6
D5
D4
D3
D2
D1
0
D1
0
BSW
OFF
ON
BLED output setting
* Default
1
D2
0
GSW
OFF
ON
GLED output setting
* Default
1
D3
0
RSW
OFF
ON
RLED output setting
* Default
1
D4
0
CKSW
OFF
ON
Charge pump clock switchover
* Default
1
Use divided frequency (1/2)
D5
0
C10
OFF
ON
Charge pump force ×1 mode
* Default
1
D6
0
SCTEN
SCTL signal enable
* Default
SCTL enabled
SCTL disabled
1
D7
0
CPSW
OFF
ON
Charge pump ON/OFF setting
* Default
1
No.A0943-9/14
LV5207LP
Address
Data
0
0
0
0
0
0
0
1
D7
D6
0
D4
D3
D2
D1
D0
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0 Current value (mA)
Main LED current value setting
Default
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0.8
1.4
*
2.0
2.6
3.2
3.8
4.4
5.0
5.6
6.2
6.8
7.4
8.0
8.6
9.2
9.8
10.4
11.0
11.6
12.2
12.8
13.4
14.0
14.6
15.2
15.8
16.4
17.0
17.6
18.2
18.8
19.4
D6
0
MLED4
OFF
MAIN LED4 output setting
Default
*
*
1
ON
D7
0
MSW
OFF
ON
MAIN LED output setting
Default
1
No.A0943-10/14
LV5207LP
Address
Data
0
0
0
0
0
0
1
0
0
0
0
D4
D3
D2
D1
D0
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0 Current Value (mA)
RLED current value setting
* Default
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0.8
1.4
2.0
2.6
3.2
3.8
4.4
5.0
5.6
6.2
6.8
7.4
8.0
8.6
9.2
9.8
10.4
11.0
11.6
12.2
12.8
13.4
14.0
14.6
15.2
15.8
16.4
17.0
17.6
18.2
18.8
19.4
No.A0943-11/14
LV5207LP
Address
Data
0
0
0
0
0
0
1
1
0
0
0
D4
D3
D2
D1
D0
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0 Current Value (mA)
GLED current value setting
* Default
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0.8
1.4
2.0
2.6
3.2
3.8
4.4
5.0
5.6
6.2
6.8
7.4
8.0
8.6
9.2
9.8
10.4
11.0
11.6
12.2
12.8
13.4
14.0
14.6
15.2
15.8
16.4
17.0
17.6
18.2
18.8
19.4
No.A0943-12/14
LV5207LP
Address
Data
0
0
0
0
0
1
0
0
0
0
0
D4
D3
D2
D1
D0
D4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0 Current Value (mA)
BLED current value setting
* Default
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0.8
1.4
2.0
2.6
3.2
3.8
4.4
5.0
5.6
6.2
6.8
7.4
8.0
8.6
9.2
9.8
10.4
11.0
11.6
12.2
12.8
13.4
14.0
14.6
15.2
15.8
16.4
17.0
17.6
18.2
18.8
19.4
No.A0943-13/14
LV5207LP
Serial map
Address
Data
A7
0
A6
0
A5
0
A4
A3
A2
0
A1
0
A0
0
D7
D6
D5
D4
CKSW
0
D3
RSW
0
D2
D1
BSW
0
D0
×
CPSW
SCTEN
C10
0
GSW
0
0
0
0
0
0
0
0
0
0
MSW
MLED4
×
MC [4 : 0]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
0
1
0
1
0
0
×
0
×
0
×
0
0
×
0
×
0
×
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
×
RC [4 : 0]
0
0
×
GC [4 : 0]
0
0
BC [4 : 0]
0
×
0
Table upper stage : Register name Table lower stage : Default value
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products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
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PS No.A0943-14/14
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