ACT6357
ACT6357 is 40V Step-Up WLED Bias Supplies manufactured by Active-Semi.
- Part of the ACT6357_Active comparator family.
- Part of the ACT6357_Active comparator family.
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....
