AX2020 Datasheet PDF

AXElite AX2020

The AX2020 is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage. The device operates from an input supply between 8V and 32V and provides an externally adjustable output current of up to 1A. The AX2020 includes the power switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current, and a dedicated DIM input accepts a wide range of pulsed dimming.

Part No.	AX2020
Datasheet	AX2020 Download
Manufacturer	AXElite
Description	1A Step-down High Brightness LED Driver
Buy	Stock & Price

GENERAL DESCRIPTION

Depending upon the supply voltage and external components, the AX2020 can provide more than 15 watts of output power. Applying a voltage of 0.3V or lower to the DIM pin turns the output off and switches the device into a low current standby state. The AX2020 is available in SOT89-5L package. 

FEATURES

Simple low parts count Wide input voltage range: 8V to 32V Up to 1A output current VÛmw`R●yÑb€ Single pin on/off and brightness control using PWM Up to 1MHz switching frequency Typical 5% output current accuracy w.goftechm Sense High-Side Current Hysteretic Control: No Compensation Adjustable Constant LED Current 1/11 Axelite Confidential Materials, do not copy or distribute without written consent. AX2020  BLOCK DIAGRAM VIN V25 CSN CS - COMPARATOR + 130mV 2.5V 70µ + GATE DRIVER Driver SW UVLO COMPARATOR GND DIM BUFFER DIM  PIN ASSIGNMENT The package of AX2020 is SOT89-5L; the pin assignment is given by: Name

DESCRIPTION

(Top View) Switch Output. SW is the output of VIN CSN SW the internal driver switch.