Description

The AS3610/11 is a highly integrated standalone or optional I²C controlled step down charger. All supervision and regulation functions are realized internal and independent from the processor. The 100/500mA USB current limit can be set via a dedicated control pin. Other limits like 900mA can be programmed in the OTP ROM. In addition, the Charger can generate a 5.05V output supply at VBUS for USB OTG. The AS3611 is a stand-alone version of this charger IC. Charging and EOC current is set by resistor only. Functions like OTG boost mode or max current limit for wall adapter mode can be enabled using dedicated pins.

The AS3611 is available in 2 versions:

AS3611-A --> pre-programmed for 100k Ohm NTC

AS3611-B --> pre-programmed for 10k Ohm NTC

For further details we refer to the datasheet.

주요 특징

• DCDC USB Charger
• 1.25A, 3MHz DCDC Charger
• OTG Boost with low IQ (700μA) up to 500mA
• 22V over voltage protection
• Seamless 100% Mode
• Reverse Polarity protection on VBUS
• NTC support
• Low side LED driver
• No external shunt resistor required
• “No Battery” operation without voltage drop
• Package: MLPD14 3x3mm

적용분야

The device is ideal as 1 Cell Li+ charger for mobile phones and portable devices.

Block Diagram for AS3610 USB Compliant Step Down Charger