AS3685C - austriamicrosystems

AS3685C Ultra Small High Efficiency 1000mA Charge Pump

The AS3685 is low noise high efficiency capacitive charge pump with 1:1, 1:1.5 and 1:2 operating modes in a small 3x3mm DFN10 or a tiny 2x1.5mm WL-CSP (Wafer Level Chip Scale Package) package. It can drive one flash led at up to 1000mA current. It supports flash/torch and indicator mode for the flash led. Additionally the AS3685 limits the flash time automat.

Features

ƒ High Efficiency capactive charge pump with 1:1, 1:1.5 and 1:2 modes − 1:2 Mode can be disabled by interface ƒ Up to 1000mA Led Current ƒ Automatic Charge Pump Mode switching (Up) 4 Application Diagram Figure 1
  – Application Diagram of AS3685C ƒ LED cathode disconnect in Shutdown ƒ Overtemperature Protection ƒ Automatic Flash Timeout to protect the LED − Adjustable between off, 100ms…1500ms ƒ Two Wire Interface − Accurate Control of Currents and Modes ƒ Package − DFN10 3x3mm (10 pins + exposed pad) − WL-CSP (Wafer Level Chip Scale Package) 3x4 balls 0.5mm pitch (2x1.5mm) 3 Applications ƒ Fla.