TCA6507_10 Datasheet, PDF (22/32 Pages) Texas Instruments – LOW-VOLTAGE 7-BIT I2C AND SMBus LED DRIVER WITH INTENSITY CONTROL AND SHUTDOWN

TCA6507
LOW-VOLTAGE 7-BIT I²C AND SMBus LED DRIVER
WITH INTENSITY CONTROL AND SHUTDOWN
SCPS164B – MAY 2007 – REVISED NOVEMBER 2007
APPLICATION INFORMATION
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Figure 16 shows a general application in which the TCA6507 can be used. Each LED output is driving one LED.
Figure 16 highlights another application where the TPS61052 boost converter and high-power LED driver and
TCA6507 7-bit LED driver can be used in combination for applications requiring flashlight functionality and/or
high-brightness indicator/backlight LEDs.
V_CC
(1.8 V)
V_CC
10 kW
SCL
Master
Controller
SDA
EN
10 kW
GND
5V
V_CC
SCL
P0
SDA
P1
EN
P2
P3
P4
GND
P5
P6
TCA6507
V_CC
General
Purpose
Logic
Figure 16. Typical Application
V_BAT
L
2.2 μH
Li-Ion
C_IN
P
P
2
I C I/F
Flash synchronization
camera engine
Voltage mode enable
base-band engine
SW
SW
AVIN
V_OUT
LED
SCL
SDA
ENVM
FLASH_SYNC
AGND
PGND
PGND
C_OUT
10 μF
P
P
2
I C I/F
Dx Dy
Dz
1.8 V
TCA6507
V_CC
P0
SCL
P1
SDA
P2
EN
GND
Figure 17. White LED Flashlight Driver and High-Brightness LED Indicator/Backlight Power Supply
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