FS209

Technology GENERAL DESCRIPTION FS209 2-PHASE DC MOTOR DRIVE IC The FS209, a 1-chip composed of hall sensor and output coil drivers, applied to a 2-phase DC motor. The high sensitivity of Hall effect sensor is suitable for motors from mini-type CPU coolers to blowers and DC fans. Typical operation current up to 0.45A and operating voltage range is from 2.0V ~ 20V. Using few external components, FS209, a high performance integrated IC, is designed for a 2-phase DC motor circuit. The circuit diagram of the typical application example is as below. FEATURES £» £» £» £» £» 1 chip hall sensor / drivers Wide operating voltage range: 2.0V~20V Output sink current up to 0.45A Thermal shutdown protect Package : TO-92SP-4 TO-92SP-4 TYPICAL APPLICATION CIRCUIT VCC FTC S209. Rev0.3 Dec.31, 2004(LF) P1 / FS209 Technology FUNCTIONAL BLOCK DIAGRAM FS209 1 Regulator 2 Hall Sensor Pre-driver AMP 3 4 Thermal shutdown MARK VIEW PIN DESCRIPTION NAME NO. STATUS DESCRIPTION IC Power Supply Coil driver output It is low state during the N magnetic field. Coil driver output It is low state during the S magnetic field. IC Ground FTC S209. VCC 1 P NO 2 O SO 3 O 1 2 3 4 GND 4 P Rev0.3 Dec.31, 2004(LF) P2 / FS209 Technology ABSOLUTE MAXIMUM RATINGS FS209 35V 30V 20V 1A≦ 100us 700mA 450mA Zener Breakdown Voltage (Vz) -----------------------------------------------------------NO/SO Pin Voltage ------------------------------------------------------------------------VCC P...