AA51890

www.DataSheet4U.com Agamem Microelectronics Inc. PRELIMINARY ■ DESCRIPTION AA51890 SERVO MOTOR CONTROLLER The AA51890 is a BJT integrated circuit for servo motor control applications. It has the feature of internal circuit of maintaining constant voltage which helps stabilizing from fluctuation caused by voltage source and the ambient temperature. It can control external H-Bridge driver for large servo motor application. ■ FEATURES Built-in voltage regulator. Adjustable dead band range control. Setting up the dead band by the internal constant. Incorporates a protection circuit for "H-Bridge" driving configuration. Small outline package – TSSOP16L. ■ APPLICATIONS Servo motor control. Radio controlled car, boat, and airplane. IA products (such as air-condition). Remote positioning. ■ BLOCK DIAGRAM ©Copyright Agamem Microelectronics Inc. 1 www.agamem.com.tw 2008/5/5 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. www.DataSheet4U.com Agamem Microelectronics Inc. PRELIMINARY ■ PIN DESCRIPTION ○ AA51890 SERVO MOTOR CONTROLLER RT EXTP2 EXTN2 GND EXTN1 EXTP1 CST OUT1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 CT POT VIN OUT2 GND RDB VCC VR...