The AAT2805 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 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 powe.
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ChargePump™
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VIN Range: 2.7V to 5.5V Dual Charge Pump to Support Backlight and Flash LEDs Backlight Charge Pump: — Regulated Current — Four Current Sink Inputs — AS2Cwire Brightness Control — Tri-Mode Charge Pump — Maximum 30mA of Current Per Input — Low IQ (50µA) in Light Load Mode Flash Charge Pump: — Regulated Output Voltage — Up to 250mA of Pulsed Current Independent Backlight/Flash Control Low Noise 1MHz Constant Frequency Operation Automatic Soft-Start No Inductors Available in TDFN44-16 Package
Applications
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• Color (RGB) Lighting White LED Backlighting White LE.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | AAT2801 |
AAT |
Multi-Mode Charge Pump | |
2 | AAT2803 |
AAT |
Six-Channel White LED Backlight Charge Pump | |
3 | AAT2806 |
ANALOGIC TECH |
Dual High Efficiency Charge Pump | |
4 | AAT2820 |
AAT |
Triple-Output Charge Pump Regulator | |
5 | AAT2822 |
Advanced Analogic Technologies |
(AAT2822 - AAT2825) TFT-LCD DC-DC Converter | |
6 | AAT2823 |
Advanced Analogic Technologies |
(AAT2822 - AAT2825) TFT-LCD DC-DC Converter | |
7 | AAT2824 |
Advanced Analogic Technologies |
(AAT2822 - AAT2825) TFT-LCD DC-DC Converter | |
8 | AAT2825 |
Advanced Analogic Technologies |
(AAT2822 - AAT2825) TFT-LCD DC-DC Converter | |
9 | AAT2842 |
Skyworks Solutions |
High Current Charge Pump | |
10 | AAT2842 |
ANALOGICTECH |
High-Current Charge Pump | |
11 | AAT2845 |
ANALOGICTECH |
Four-Channel Backlight Driver | |
12 | AAT2856 |
AAT |
High Current Charge Pump |