LP3944_14 Datasheet, PDF (3/17 Pages) Texas Instruments – RGB/White/Blue 8-LED Fun Light Driver

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Architectural Block Diagram
A2 A1 A0
LP3944
SNVS264 – MAY 2004
SCL
SDA
I²C
Filters
I²C Bus
Control
V_DD
RST
Power-On Reset
Oscillator
Prescalar
Reg0ister
Prescalar
Reg1ister
Input Register
Bit0 of Input Reg 1
LED Select Register
Bit1
0
Bit0
of
Select
Register
LS0
1
PWM 0
Register
PWM 1
Register
COPIES
LED0
Bit 7 of Input Register1
Bit 6 of Select Register LS1
Bit 7 of Select Register LS1
0
1
PWM0 Register
Programming Example (See end of datasheet ^{PWM1 Register}
for complete example)
LED7
Figure 2. For Explanation of LP3944 Operation,
Please Refer to Theory of Operation in Application Notes.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Copyright © 2004, Texas Instruments Incorporated
Product Folder Links: LP3944
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