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SpecificationsDrives up to 4 LEDs at up to 30mA eachAutomatic Switching Between 1x and 2x Modes0.85MHz Switching FrequencyLinear LED Output Current ControlUniversal PWM Interface±10% LED Output Current Accuracy±3% LED Output Current MatchingLow-current Shutdown ModeBuilt-in Thermal Prote...

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SeekIC No. : 004261106 Detail

AAT3105: SpecificationsDrives up to 4 LEDs at up to 30mA eachAutomatic Switching Between 1x and 2x Modes0.85MHz Switching FrequencyLinear LED Output Current ControlUniversal PWM Interface±10% LED Output...

AAT3105 Data Sheet

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Part Number:: AAT3105
Supply Ability:: 5000

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1~5000

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Product Details

Description

Specifications

Drives up to 4 LEDs at up to 30mA each
Automatic Switching Between 1x and 2x Modes
0.85MHz Switching Frequency
Linear LED Output Current Control
Universal PWM Interface
±10% LED Output Current Accuracy
±3% LED Output Current Matching
Low-current Shutdown Mode
Built-in Thermal Protection
Automatic Soft-start
Available in 2x2.1mm SC70JW-10 Package

Description

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The AAT3105 is a charge-pump based, current-source white LED driver capable of driving one to four LEDs up to 30mA, each. It automatically switches between 1x mode and 2x mode to maintain the highest efficiency and optimal LED current matching.

The AAT3105 charge pump 1x mode (bypass mode) has very low resistance, allowing LED current regulation to be maintained with input supply voltage approaching the LED forward voltage.

LED brightness is controlled using a universal PWM interface. The AAT3105 is available in a Pb-free, 2x2.1mm 10-lead SC70JW-10 package.

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AAT3105

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