AHK3293 Three-Channel 1x LED Driver

The AHK3293 is a linear current-sink LED driver, capable of driving one, two or three LEDs up to 30.2mA each. Featuring individual low resistance, low drop-out voltage current sinks, the AHK3293 allows the LEDs to be regulated directly from a Lithium Ion/Polymer battery without the need for an additional step-up power supply, thereby reducing the external component count, eliminating switching noise and maximizing efficiency. Skyworks' Simple Serial Control™ (S2Cwire™) interface is used to enable, disable, and set the LED drive current for 32-level linear scale LED brightness control. To minimize the use of external components the LED current is set internally to a maximum of 30.2mA. The AHK3293 is packaged in a Pb-free 6-pin SOT23 package and operates over the -40 to +85OC temperature range.

技术特性

2.7V to 5.5V Input Supply Range
Drives up to 3 LEDs at up to 30.2mA each
Low-Dropout, Low Resistance Current Sinks
Typically 40.5mV at Full Scale
Linear LED Output Current Control
S2Cwire Interface
Single-wire
32 Steps
±10% LED Output Current Accuracy
±3% LED Output Current Matching
Low Current Shutdown Mode
Low-cost 6-pin SOT23 Package

订购信息 Ordering Information

AHK3293

应用领域 APPLICATION

Entry Level Mobile Phones
Indicator LEDs
Keyboard Backlight
MP3 Players

AHK3293 典型应用

应用技术支持与电子电路设计开发资源下载	版本信息	大小
AHK3293 数据资料DataSheet下载:pdf	Rev.V2	2 页