TS19340CS14

Taiwan Semiconductor

4

Version: B1705

FUNCTION BLOCK

BG

LDO

VD

VSEN

CCV

(200mV)

FB

CVV

(2.5/1.2)

CCL

CCH

Bias

VCC

PHO

GND

Dim

CCO

PWM

COM

SWO

PIN DESCRIPTION

PIN NO.

NAME

FUNCTION

1

VD

3.3V low drop out voltage

2

CCH

Constant current high limit voltage

3

CCL

Constant current low limit voltage

4

CCO

LED current cut-off voltage

5

PWM

PWM input pin

6

N/C

No connection

7

GND

Ground

8

COM

PWM pulse filter pin

9

SWO

Open drain output of the comparator for LED current cut-off function

10

N/C

No connection

11

PHO

Open drain output of the two internal operational amplifier for photo coupler

12

Current sense pin

13

FB

Voltage sense pin

14

Power supply pin