MIC2846A Datasheet High Efficiency 6 Channel Linear WLED Driver

Manufacturer: Micrel Semiconductor

Overview: MIC2846A High Efficiency 6 Channel Linear WLED Driver with DAM™, Digital Control and Dual Low IQ LDOs.

MIC2846A high efficiency 6 channel linear wled driver by Micrel Semiconductor - Datasheet Preview

Datasheet Details

Part number	MIC2846A
Manufacturer	Micrel Semiconductor
File Size	1.50 MB
Description	High Efficiency 6 Channel Linear WLED Driver
Download	MIC2846A Download (PDF)

General Description

The MIC2846A is a high efficiency White LED (WLED) driver featuring two low quiescent current LDOs.

It is designed to drive up to six LEDs and greatly extend battery life for portable display backlighting and keypad backlighting in mobile devices.

The MIC2846A architecture provides the highest possible efficiency by eliminating switching losses present in traditional charge pumps or inductive boost circuits.

Key Features

Dynamic Averaged Matching™ (DAM™) which is specifically designed to get the optimum matching despite process variations. This ensures a typical matching of ±1.5% between all six LED channels. The LED brightness is preset by an external resistor and can be dimmed using a single-wire digital control. The digital interface takes commands from digital programming pulses to change the brightness in a logarithmic scale similar to the eye’s perception of brightness. The singlewire digital brightness co.

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