AAT2805IXN-4.5-T1

dual charge pump, QFN, -0.3 to 6.0 V, Low Noise, No Inductors, 1MHz

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Price:: US $0.15~0.30 / piece [Get Latest Price]

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PartNumber:: AAT2805IXN-4.5-T1

Brand:: Advanced Analogic Technologies - AnalogicTech | Pack: QFN | D/C: 04+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-05-03

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Part Number:AAT2805IXN-4.5-T1
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Product Summary

The AAT2805IXN-4.5-T1 is a dual charge pump designed to support both the white LED backlight and flash applications for systems operating with lithium-ion/polymer batteries. The AAT2805IXN-4.5-T1 backlight charge pump is capable of driving up to four LEDs at a total of 120mA. The current sinks may be operated individually or in parallel for driving higher current LEDs. To maximize power efficiency, the charge pump operates in 1X, 1.5X, or 2X mode, where the mode of operation is automatically selected by comparing the forward voltage of each LED with the input voltage. The AAT2805IXN-4.5-T1 is suitable for Color (RGB) Lighting, White LED Backlighting and White LED Photo Flash.

Parametrics

AAT2805IXN-4.5-T1 absolute maximum ratings: (1)VIN, Input Voltage: -0.3 to 6.0 V; (2)VEN/SET; EN_FL, EN/SET; EN_FL to GND Voltage: -0.3 to VIN + 0.3 V; (3)TLEAD, Maximum Soldering Temperature (at leads, 10 sec): 300℃.

Features

AAT2805IXN-4.5-T1 features: (1)VIN Range: 2.7V to 5.5V; (2)Dual Charge Pump to Support Backlight and Flash LEDs; (3)Backlight Charge Pump: Regulated Current; Four Current Sink Inputs; AS2 Cwire Brightness Control; (4)Tri-Mode Charge Pump; (5)Maximum 30mA of Current Per Input; (6)Low IQ (50μA) in Light Load Mode; (7)Flash Charge Pump: Regulated Output Voltage; Up to 250mA of Pulsed Current; (8)Independent Backlight/Flash Control; (9)Low Noise 1MHz Constant Frequency Operation; (10)Automatic Soft-Start; (11)No Inductors; (12)Available in TDFN44-16 Package.