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LD7889A Datasheet(PDF) 3 Page - Leadtrend Technology

Part # LD7889A
Description  4-Channel LED Backlight Driver
PDF  17 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7889A Datasheet(HTML) 3 Page - Leadtrend Technology

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LD7889A
3
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7889A-DS-00 March 2012
Ordering Information
Part number
Package
Top Mark
Shipping
LD7889AGS
SOP-16
LD7889AGS
2500 /tape & reel
LD7889AGHE
TSSOP-EP-16
LD7889AGHE
2500 /tape & reel
LD7889AGN
DIP-16
LD7889AGN
1800 /Tube/ Carton
The LD7889A is green packaged.
Pin Descriptions
PIN
SOP-16
PIN
TSSOP-16
PIN
DIP-16
NAME
FUNCTION
1
5
1
LED4
LED string #4 current input.
2
6
3
ISET
LED current resistor setting
3
7
2
OVP
Over-voltage protection
4
8
4
RT
Operating frequency resistor setting
5
9
5
EN
Chip enable pin.
6
10
6
CS
Power MOSFET current sense pin.
7
11
7
GATE
Low side Power MOSFET Driver
8
12
8
VREF
5V Internal linear regulator output pin with an external
ceramic capacitor of 1
F or greater.
9
13
9
VIN
Input Power of the chip. Bypass with at least 1
F ceramic
capacitor and place it close to VIN pin.
10
14
10
STATUS
LED operation status output
11
15
11
COMP
Soft start and control loop Compensation.
12
16
12
PWM
PWM dimming input.
13
1
13
LED1
LED string #1 current input.
14
2
14
LED2
LED string #2 current input.
15
3
15
GND
IC ground
16
4
16
LED3
LED string #3 current input.



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