AA1850

Agamem Microelectronics Inc. www.DataSheet4U.com AA1850 PRELIMINARY ■ DESCRIPTION HIGH-SIDE CURRENT MONITOR The AA1850 is a high side current sense monitor. It takes a high side voltage developed across a current shunt resistor and translates it into a proportional output current. A customer defined output resistor converts the output current into a reference voltage. It operates over a wide input voltage range, from 2.5V to 20V and makes it suitable for many applications. A minimum operating current of 4uA, combined with its SOT23 package make it a right solution for portable equipment. ■ FEATURES Low cost and accurate high-side current monitor. Up to 2.5V sense voltage. 2.5V – 20V supply range. 4uA quiescent current. 1% typical accuracy. ■ APPLICATIONS Battery chargers DC motor control Over current monitor Power management Programmable current source ■ BLOCK DIAGRAM ©Copyright Agamem Microelectronics Inc. 1 www.agamem.com.tw 2008/4/8 AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCTS OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. Agamem Microelectronics Inc. www.DataSheet4U.com AA1850 PRELIMINARY ■ PIN DESCRIPTIONS HIGH-SIDE CURRENT MONITOR PIN NO. 1 2 3 PIN NAME VSENSEVSENS...