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TPS60230EVM-047: 20mA x5 @ 4V Max, 2.7 ~ 6Vin

Summary

The Texas Instruments TPS60230EVM-047 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS60230. This device is an efficient charge-pump-based current sink that can drive up to five white LEDs with 25mA each. Efficiency is improved by switching between a 1.0x and 1.5x mode, based on the input voltage.

This EVM is specifically designed and optimized to operate with a single-cell Li-Ion battery input. The default maximum current setting for this EVM is 20mA per LED. If desired, this EVM can easily be modified to supply higher or lower currents by appropriately selecting the ISET resistor, R1. Refer to the data sheet (SLVS516) for more information on adjusting the LED current.

Specifications

Manufacturer Texas Instruments
Category Lighting
Sub-Category LED Drivers - DC In
Eval Board Part Number 296-18968-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
Voltage In 2.7 ~ 6 V
Topology Step Up/Down
Switch Cap, Charge Pump
Current Out 20 mA
Voltage Out (Max) 4 V
Outputs and Type 5 Non-Isolated
Efficiency @ Conditions >55%, 2.7 ~ 5.7V in, @ 20 mA
Features Current Limit (Adj. or Fixed)
Dimming Control
Over Current Protection
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 1 MHz
Component Count + Extras 6 + 4
Design Author Texas Instruments
Application / Target Market Cellular Phone
Digital Cameras
MP3 Players
Portable Devices
USB Powered Devices
Main I.C. Base Part TPS60230
Date Created By Author
Date Added To Library 2011-03

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