ZXSC400EV4: 1 LED @ 350mA, 1.8 ~ 3 Vin

Summary

The ZXSC400 is voltage mode boost converter in SOT23-6 package. Its low feedback voltage allows the current in a chain of LEDs to be set and accurately monitored with a single resistor with minimal losses.

The ZXSC400EV4 is configured as a boost converter to drive a 1W LED from two NiCd / NiMH batteries.

Specifications

Manufacturer Diodes Incorporated
Category Lighting
Sub-Category LED Drivers - DC In
Eval Board Board not Stocked
Voltage In 1.8 ~ 3 V
Topology Step Up
Current Out 350 mA
Voltage Out (Max) 4 V
Outputs and Type 1 Non-Isolated
Efficiency @ Conditions >80%, 2.2 ~ 3V in, 3.6V @ 360 mA Using 33mΩ
>70%, 2 ~ 3V in, 3.5V @ 360 mA Using 22mΩ
Features Over Voltage Protection
Switching Frequency 200 kHz
Component Count + Extras 8 + 0
Design Author Diodes/Zetex
Application / Target Market Flashlight / Torch
Main I.C. Base Part ZXSC400
Date Created By Author
Date Added To Library 2011-03

Support Documents & Media

ZXSC400EV4 - User Guide ZXSC400 = Datasheet ZXSC400 - DN79 - Design Note 79

Media

ZXSC400EV4_Schematic.JPG
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