LED driver supports dual-display backlighting
Aug 1, 2007 4:25 PM
News & Features From Auto Electronics
Committed to improving hybrid electric cars
New Motors for Hybrid Vehicles
Battery Firms Battle for Hybrid Hegemony
Innovative Bipolar Plates for Fuel Cells
See More Headlines
Top Articles
Exploring Current Transformer Applications
Ultracapacitor Technology Powers Electronic Circuits
Buck-Converter Design Demystified
Sensorless Motor Control Simplifies Washer Drives
PET Resources
Buyer's Guide
Conferences
Engineering Jobs
Power Electronics Events
Rent Our Lists
Spotlight on Digital Power
Texas Instruments’ TPS60250 drives up to five white LEDs for a main display and up to two white LEDs for a sub-display with regulated constant current for uniform intensity. The high-efficiency, constant-frequency charge-pump dc-dc converter uses dual-mode conversion to maximize efficiency over the single-cell lithium-battery input voltage range. The device also provides a fully programmable current via an I2C interface.
By utilizing adaptive charge pump modes and very low-dropout current regulators, the TPS60250 achieves high efficiency. To lower operating current when using one sub-display LED, the device provides completely separate operation in sub-display LEDs. The TPS60250 is packaged in a 3-mm x 3-mm, 16-pin QFN package. Suggested pricing starts at $1.40 in 1000-unit quantities.
