DIO5180中文资料1.5A升压闪光灯驱动,2MHz,支持调光功能数据手册DIOO规格书

描述 Description

DIO5180 is a Boost-architecture high power flash LED driver, ideally for smart phone camera modules or digital still camera modules. The internal DC/DC switch works at 2MHz and needs few peripheral components, fitting for portable photo flash solution.
The two LED output sinks can be shorted together externally for higher power single flash LEDs, up to 1.5A continuous LED current. Thermal regulation is integrated in Flash mode to limit the IC’s temperature and continuously provide the maximum allowed output current.   

特性 Features

●   Dual Flash LED Outputs
●   Drive Up to Total 1.5A or 0.75A per Channel
●  Up to 90% Efficiency
●   Integrated 2MHz Step-Up Converter
●   3V to 5V Operation Voltage Range
●   Very Small Inductor: 1.0μH
●   Independent Flash Mode Enable and Movie/Torch Mode Enable Pins
●    Flash Mode or Movie/Torch Mode Dimming via
PWM Control
●   One Resistor Sets Flash Mode LED Current
●   One Resistor Sets Movie/Torch Mode LED Current
●   Integrated Thermal Regulation Control
●   10kHz to 200kHz PWM Dimming Frequency
●   600ms Flash Timer Control
●   330kΩ Pull-Down Resistor on ENM and ENF Pins
●   LED Open or Short Protection
●   Output Over-Voltage Protection
●   Cycle-by-Cycle Inductor Current Limit
●   0.1μA Shutdown Current
●   Available in Green DFN-3×2-14L Package
●   -40°C to +85°C Operating Temperature Range

应用 Application

●  Single Cell Li-Battery Powered Products
●  Portable Audio Players
●  Cellular Phones
●  Personal Medical Products