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www.austriamicrosystems.com/Battery-Chargers/AS3610

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D a t a s h e e t

1 General 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.

AS3610 features an I2C interface which can be used by a micro-

controller to fully control all functionality of the chip. Charging current

and EOC current can be set with external resistors and adjusted via

register settings if needed.

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.

Figure 1. AS3610/11 Block Diagram

2 Key Features

DCDC USB Charger

1.25A, 3MHz DCDC Charger

OTG Boost with low IQ (700 A) 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

3 Application

The device is ideal as 1 Cell LiIon, LiPo or LiFePO4 charger for

mobile phones and portable devices.