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DC1511A-B: 350mA @ 32V Max, 3 ~ 30V in

Summary

Demonstration circuits 1511A-A and 1511A-B feature the LTM®8042 and the LTM8042-1, which are respectively complete 1A and 350mA µModule LED drivers. The demonstration circuits are assembled as boost topologies, accepting an input voltage from 3V to 30V and supporting an output up to 32V (see Table 1).

The default switching frequency is 600kHz for DC1511A-A and 950kHz for DC1511A-B, but can be adjusted by changing the value of RT.

DC1511A is easily configured to support other features, including PWM dimming, analog dimming, buck-boost mode and buck mode (step-down).

True Color PWM™ provides a 3000:1 dimming ratio.

Specifications

Manufacturer Linear Technology/Analog Devices
Category Lighting
Sub-Category LED Drivers - DC In
Eval Board Part Number DC1511A-B-ND
Eval Board Supplier Linear Technology/Analog Devices
Eval Board Normally In Stock
Voltage In 3 ~ 30 V
Topology Step Up
Current Out 350 mA
Voltage Out (Max) 32 V
Outputs and Type 1 Non-Isolated
Efficiency @ Conditions >87%, 8 ~ 23V in, 24.8Vf @ 350 mA
Features Dimming Control
Internal Inductor
Open Circuit Protection
Soft Start
Synchronizable
Switching Frequency 950 kHz
Component Count + Extras 5 + 18
Design Author Linear Technology
Application / Target Market Automotive
Avionic
LCD Backlighting
Main I.C. Base Part LTM8042 -1
Date Created By Author
Date Added To Library 2011-04

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