LP3936 datasheet(3/20 Pages) NSC

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Pin Description

Name

Type

Description

GND_BOOST

Ground

Power Switch Ground

Input

Boost Converter Feedback

DD2

Power

Supply Voltage for Internal Digital Circuits

GND2

Ground

Ground Return for V

DD2 (Internal Digital)

WLED1

LED Output

Open Drain, White LED1 Output

WLED2

LED Output

Open Drain, White LED2 Output

WLED3

LED Output

Open Drain, White LED3 Output

WLED4

LED Output

Open Drain, White LED4 Output

GND_WLED

Ground

4+2 White LED Driver Ground

WLED5

LED Output

Open Drain, White LED5 Output

WLED6

LED Output

Open Drain, White LED6 Output

DDA

Output

Internal LDO Output, 2.8V

GND1

Ground

Ground Return for V

DD1 (Internal Analog)

DD1

Power

Supply Voltage for Internal Analog Circuits

AIN

Input

Ambient Light Sensor Input

AREF

Output

Reference Voltage for Ambient Light Sensor, 1.23V

GND_T

Ground

REF

Output

Internal Reference Bypass Capacitor

Input

Oscillator Resistor

MW_SEL

Logic Input

MicroWire — I

2C select (MW_SEL=1 in MicroWire Mode)

NRST

Logic Input

Low Active Reset Input

Logic

Input/Output

MicroWire Chip-Select (in) / I

2C SDA (in/out)

Logic Output

MicroWire Data Output

Logic Input

MicroWire Data Input

SCL

Logic Input

MicroWire Clock / I

2C SCL Input

RGB_EN

Logic Input

LED Control for On/Off or PWM Dimming

DD_IO

Power

Supply Voltage for Logic IO signals

ROUT

LED Output

Open Drain Output, Red LED

GOUT

LED Output

Open Drain Output, Green LED

BOUT

LED Output

Open Drain Output, Blue LED

GND_RGB

Ground

Ground for RGB Drivers

OUT

Output

Open Drain, Boost Converter Power Switch

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LP3936 数据表(PDF) 3 Page - National Semiconductor (TI)

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