AP3609 Datasheet, PDF (1/13 Pages) BCD Semiconductor Manufacturing Limited – EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH

Preliminary Datasheet
EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH
General Description
Features
AP3609
The AP3609 is an eight-channel constant current sink
with current match used for LED driver. It uses an
external resistor to set the current for eight LED strings
with an accuracy of ±1.5%. The full scale LED current
can be adjusted from 10mA to 100mA for each chan-
nel. The LED light can be adjusted by PWM dimming
function.
The device can keep working when LED opens with-
out damage. It features under voltage lockout protec-
tion and over temperature protection.
The AP3609 has two interface terminals (FB and
FBX). They enable the device to be connected in paral-
lel.
The AP3609 is available in SOIC-16 package.
· Input Voltage Range: 4.2V to 5.5V
· Typical Output Current: 480mA (60mA/1V per
Channel)
· Maximum Output Current: 800mA (100mA/1.5V
per Channel)
· Current Match Accuracy: ±1.5%
· PWM Dimming Control
· Open LED Self-check and Protection
· Under Voltage Lockout Protection
· Over Temperature Protection
· Enable Parallel Application
Applications
· Notebook
· LCD Display Modules
· LCD Monitor
· LCD TV
May 2013 Rev. 2. 0
SOIC-16
Figure 1. Package Type of AP3609
BCD Semiconductor Manufacturing Limited
1