ACE517 Datasheet, PDF (1/8 Pages) ACE Technology Co., LTD. – WLED Linear Driver for Li-lon Battery Application

Technology
ACE517
WLED Linear Driver for Li-lon Battery Application
Description
The ACE517 is a CMOS based White/Blue LED driver with stand-alone capability. The driver is primarily
designed for LED backlighting of LCE display powered by Li-ion battery with its high efficiency, low
standby current and wide range of input supply voltage, the ACE517 is suitable for applications such as
portable device display and keypad backlighting.
In portable application, three or four-channel LED solutions are popular, ACE517 has three LED
channels with a SOT-23-6 package. ACE517 has four LED channels with a MSOP-8 package.
Features
• No external component required
• PWM dimming control available
• Low noise and EMI
• LED sink current of 20mA
• Independent current sink circuit for each LED output
• Versatile supply voltage range
• Low standby current
• High accuracy current match on each channel
Application
• Small Size Color LEC Backlights Driver
• Mobile Phone, Portable Device Keypad Backlights Driver
Absolute Maximum Ratings
Parameter
Max Unit
Supply voltage
-0.3 to 7 V
Voltage of LEDn, EN pin
-0.3 to 7 V
Maximum Junction Temperature
125 ^OC
Operating Ambient Temperature Range -40 to 85 ^OC
Storage Temperature Range
-40 to 150 ^OC
VER 1.2 1