BL8548 Variable Frequency Step-up DC/DC Converter

BELLING

Description

BL8548 Max.3MHz, Variable Frequency Step-up DC/DC Converter .
The BL8548 variable frequency step-up Converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-he.

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Datasheet Specifications

Part number: BL8548
Manufacturer: BELLING
File Size: 375.36 KB
Datasheet: BL8548-BELLING.pdf
Description: Variable Frequency Step-up DC/DC Converter

Features

* allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness. An enable input can be pulsed repeatedly to adjust LEDs brightness. The fast 3MHz operation frequency allows for smaller capacitor and inductor. Fault condition protection uses cycle-by cycle

Applications

* Compact Back Light Module
* Power Source for LED
* Constant Current Source BL8548 is available in SOT23-6 package that is PB free. TYPICAL APPLICATION BL8548 www. belling. com. cn Figure1. BL8548 Typical Application Circuit 1 ORDERING INFORMATION BL8548
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BL8548 Variable Frequency Step-up Converter BELLING

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