Pin Description - NS LP3931 Manual

Pin Description

Pin # Name
1 G2
2 R2
3 GND_RGB
4 R1
5 G1
6 B1
7 GND_BOOST
8 SW
9 V
DD2
10 GND2
11 FB
12 V
REF
13 SO
14 SI
15 SS
16 SCK
17 PWM_LED
18 NRST
19 V
DDIO
20 RT
21 GND3
22 V
DD1
23 GND1
24 B2
Type
Output Open Drain, Green LED2
Output Open Drain, Red LED2
Ground RGB Driver Ground
Output Open Drain, Red LED1
Output Open Drain, Green LED1
Output Open Drain, Blue LED1
Ground Power Switch Ground
Output Open Drain, Boost Converter Power Switch
Power Supply Voltage for Internal Digital Circuits
Ground Ground
Input Boost Converter Feedback
Output Internal Reference Bypass Capacitor
Logic Output SPI Serial Data Out
Logic Input SPI Serial Data Input
Logic Input SPI Slave Select
Logic Input SPI Clock
Input LED Control for On/Off or PWM Dimming
Logic Input Low Active Reset Input
Power Supply Voltage for Logic IO Signals
Input Oscillator Resistor
Ground Ground
Power Supply Voltage for Internal Analog Circuits
Ground Ground
Output Open Drain, Blue LED2
Description
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