A8430 - White LED Driver Constant Current Step-up Converter

Product Overview

Allegro MicroSystems

Datasheet Details

Part number	A8430
Manufacturer	Allegro MicroSystems
File Size	355.58 KB
Description	White LED Driver Constant Current Step-up Converter
Datasheet	A8430 Datasheet
Additional preview pages of the A8430 datasheet.

Product details

Description

Surface Mount Lead-Free, Surface Mount Data Sheet 26185.300C White LED Driver Constant Current Step-up Converter Functional Block Diagram FB SW A8430 VIN VREF 1.25 V 95 mV A1 RC CC A2 R S Q Driver Σ Ramp Generator EN Enable 1.2 MHz Oscillator GND ELECTRICAL CHARACTERISTICS at TA = 25°C, VIN = 3 V (unless otherwise noted) Characteristics Input Voltage Range Supply Current Feedback Reference Voltage Feedback Input Current Switch Current Limit Switch Frequency Switch Maximum Duty Cycle

Features

Output voltage up to 36 V 2.5 V to 10 V input Drives up to 4 LEDs at 20 mA from a 2.5 V supply Drives up to 5 LEDs at 20 mA from a 3 V supply 1.2 MHz switching frequency 300 mA switch current limit 1 µA shutdown current.

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Published: Mar 14, 2007 |