TCA6507_10 Datasheet, PDF (3/32 Pages) Texas Instruments – LOW-VOLTAGE 7-BIT I2C AND SMBus LED DRIVER WITH INTENSITY CONTROL AND SHUTDOWN

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BALL
POSITION
BGA
(ZXU)
A1
A2
A3
A4
B3
C1
B1
C2
C3
C4
B4
B2
PIN NO.
QFN
(RUE)
5
3
2
TSSOP
(PW)
5
3
2
1
1
6
8
7
9
8
10
9
11
10
12
11
13
12
14
4
4
TCA6507
LOW-VOLTAGE 7-BIT I²C AND SMBus LED DRIVER
WITH INTENSITY CONTROL AND SHUTDOWN
SCPS164B – MAY 2007 – REVISED NOVEMBER 2007
TERMINAL FUNCTIONS
NAME
DESCRIPTION
GND
SDA
SCL
V_CC
P0
P1
P2
P3
P4
P5
P6
EN
Ground
Serial data bus. Connect to V_CC through a pullup resistor.
Serial clock bus. Connect to V_CC through a pullup resistor.
Supply voltage of I²C registers, oscillator and control logic. Connect directly to
V_CC of the external I²C master. Provides voltage-level translation.
P-port output 0. Open-drain design structure.
P-port output 1. Open-drain design structure.
P-port output 2. Open-drain design structure.
P-port output 3. Open-drain design structure.
P-port output 4. Open-drain design structure.
P-port output 5. Open-drain design structure.
P-port output 6. Open-drain design structure.
Enable input. If set to low, it puts the TCA6507 in shutdown mode and resets the
internal registers and I²C/SMBus state machine to their default states
FUNCTIONAL BLOCK DIAGRAM
SCL
SDA
Glitch
Filters
I²C Bus
Control
Select2
Register
Select1
Register
Oscillator
EN
Shut
Down
Power-On
V_CC
Reset
Select0
Register
LED
Intensity
Control
PWMALD
PWM0
PWM1
Logic 0
Fade/
Intensity
Control
Registers
BRIGHT_F0
BRIGHT_F1
Logic 1
Figure 1. TCA6507 Functional Block Diagram
P6–P0
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TCA6507
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