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ACT6357

Part Number	ACT6357
Manufacturer	Active-Semi
Description	40V Step-Up WLED Bias Supplies
Published	Feb 24, 2010
Detailed Description	ACT6357/ACT6358 Rev 1, 15-Nov-12 High-Efficiency, 40V Step-Up WLED Bias Supplies FEATURES • High-Efficiency DC/DC WLED ...
Datasheet	ACT6357 PDF File

Overview

ACT6357/ACT6358 Rev 1, 15-Nov-12 High-Efficiency, 40V Step-Up WLED Bias Supplies FEATURES • High-Efficiency DC/DC WLED Bias Supply • Internal 40V, 0.
55Ω Power MOSFET • Up to 10 WLEDs per String • Two Peak Current Options: − ACT6357: 0.
5A − ACT6358: 1A • Supports Analog and PWM LED Dimming • Integrated Over-Voltage Protection (OVP) • Programmable Soft-Start Function • Thermal Shutdown • Cycle-by-Cycle Over Current Protection • Tiny TDFN33-8 Package APPLICATIONS • TFT LCD Displays • Smart Phones • Portable Media Players • GPS/Personal Navigation Devices GENERAL DESCRIPTION The ACT6357 and ACT6358 step-up DC/DC converters drive white LEDs with an externally programmable constant current.
Thes...

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