AAT1236 Datasheet PDF | Advanced Analog Technology

Advanced Analog Technology AAT1236

The AAT1236 is a highly integrated, high efficiency power solution for white LED and keypad backlights in mobile/portable devices. It is based on a switching boost converter which steps up the single cell lithium-ion/polymer battery voltage to drive 5 strings of series-connected white LEDs with precision current regulation. The AAT1236 is capable of driving a total of four LEDs per channel.

Part No.	AAT1236
Datasheet	AAT1236 Download
Manufacturer	Advanced Analog Technology
Description	High Efficiency White LED Drivers
Buy	Stock & Price

GENERAL DESCRIPTION

The boost converter can produce an output drive of up to 24V at 100mA. The high switching frequency (up to 2MHz) provides fast response to load transients and allows the use of small external components. A fully integrated control circuit simplifies the design and reduces total solution size. A two-wire I2C serial digital interface is used to individually turn each output sink on/off and adjust the LED current by group. Unlike conventional pulse width modulation (PWM) control of LED brightness, the AAT1236 drives the LEDs with constant, nonpulsating current. The interface is fully compliant to the Fast/Standard mode I2C specification, allowing a transfer rate of up to 400kHz. A similar device is also available with a proprietary Advanced Simple Serial Control™ (AS2Cwire™) single wire interface; please see the AAT1235 datasheet. The AAT1236 is available in a Pb-free, thermallyenhanced 16-pin 3x4mm TDFN package and is specified for operation over the -40°C to +85°C temperature range.

AAT1236 Datasheets by Manufacturer

1 datasheets

Part Number	Manufacturer
AAT1236	Skyworks Solutions