Toshiba Electronics Europe has expanded its constant-current white LED driver product line with a DC/DC converter IC for powering multi-segment white LEDs.  The TB62752AFUG is suitable for use with portable designs based on Li-ion batteries, it operates with input voltages from 2.8V to 5.5V and achieves power efficiency of 80% during seven-segment white LED operation. Current precision is guaranteed to within ±5% to ensure uniform LED lighting. Surge detection voltage is rated at 37V.

Integrated protection functionality is designed to accommodate open and shorted LED failure modes without additional components. In the case of an LED open circuit failure, the IC clamps the output voltage to a non-dangerous level for the output transistor. No current will flow through the LEDs and the IC remains undamaged. Should an LED short circuit failure occur, the TB62752AFUG ensures that the same current flows through the LED series configuration with the result that all LEDs except the failed part continue to operate. Withstand voltage for the part is rated at 40V.

Supplied in a SOT23-6 package, the TB62752AFUG has dimensions of  2.9mm x 2.8mm x 1.3mm, including lead length.