LP3936SLX datasheet(3/20 Pages) NSC

Part #	LP3936SLX

Description	Lighting Management System for Six White LEDs and One RGB or FLASH LED

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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Pin Description

Name

Type

Description

1

GND_BOOST

Ground

Power Switch Ground

2

FB

Input

Boost Converter Feedback

3V

DD2

Power

Supply Voltage for Internal Digital Circuits

4

GND2

Ground

Ground Return for V

DD2 (Internal Digital)

5

WLED1

LED Output

Open Drain, White LED1 Output

6

WLED2

LED Output

Open Drain, White LED2 Output

7

WLED3

LED Output

Open Drain, White LED3 Output

8

WLED4

LED Output

Open Drain, White LED4 Output

9

GND_WLED

Ground

4+2 White LED Driver Ground

10

WLED5

LED Output

Open Drain, White LED5 Output

11

WLED6

LED Output

Open Drain, White LED6 Output

12

V

DDA

Output

Internal LDO Output, 2.8V

13

GND1

Ground

Ground Return for V

DD1 (Internal Analog)

14

V

DD1

Power

Supply Voltage for Internal Analog Circuits

15

AIN

Input

Ambient Light Sensor Input

16

AREF

Output

Reference Voltage for Ambient Light Sensor, 1.23V

17

GND_T

Ground

18

V

REF

Output

Internal Reference Bypass Capacitor

19

RT

Input

Oscillator Resistor

20

MW_SEL

Logic Input

MicroWire — I

2C select (MW_SEL=1 in MicroWire Mode)

21

NRST

Logic Input

Low Active Reset Input

22

CS

Logic

Input/Output

MicroWire Chip-Select (in) / I

2C SDA (in/out)

23

DO

Logic Output

MicroWire Data Output

24

DI

Logic Input

MicroWire Data Input

25

SCL

Logic Input

MicroWire Clock / I

2C SCL Input

26

RGB_EN

Logic Input

LED Control for On/Off or PWM Dimming

27

V

DD_IO

Power

Supply Voltage for Logic IO signals

28

ROUT

LED Output

Open Drain Output, Red LED

29

GOUT

LED Output

Open Drain Output, Green LED

30

BOUT

LED Output

Open Drain Output, Blue LED

31

GND_RGB

Ground

Ground for RGB Drivers

32

OUT

Output

Open Drain, Boost Converter Power Switch

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LP3936SLX Datasheet(PDF) 3 Page - National Semiconductor (TI)

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