FS276LF-B

Pb Free General Description The FS276, 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 is 0.4A and operating voltage range is from 3.0V ~ 20V. Using few external components, FS276, 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: 3.0V~20V ˙Output sink current up to 0.4A ˙Package : TO-92SP-4 TO-92SP-4 Typical Application Circuit VCC FTC S276 Rev0.2 Nov. 09, 2004(LF) P1/FS276 Functional Block Diagram 1 Regulator 2 Hall Sensor Pre-driver AMP 3 4 MARK VIEW FTC PIN DESCRIPTION NAME NO. STATUS VCC 1 P IC Power Supply NO 2 O Coil driver output It is low state during the N magnetic field. SO 3 O Coil driver output It is low state during the S magnetic field. GND 4 P IC Ground S276. 1 2 3 4 DESCRIPTION Rev0.2 Nov. 09, 2004(LF) P2/FS276 Absolute Maximun Ratings ( at Ta = 25 oC ) Zener Breakdown Voltage (Vz) ----------------------------------------------------------- 35V NO/SO Pin Voltage(off) ------------------------------------------------------------------- 30V VCC Pin Voltage ------------------------------------------------------------------------------ 20V Peak Sink Current (Io) Peak Current------------------------------------------------------------------------- 1A≦ 100us Hold Current-------------------------------------------------------------------------- 600mA Continuous Current ---------------------------------------------------------------- 400mA Power Dissipation Ta=25 oC -----------------------------------------------------------------------------o Ta=95 C ------------------------------------------------------------------------------ 700mW 450mW Thermal Resistance Θja= ----------------------------------------------------------------------------------- 0.15 oC/mW Operating Temperature Range ---------------------------------------------------- -20 oC to +85 oC Storage Temperature Range ------------------------------------------------------- -65 oC to +150 oC Junction Temperature ----------------------------------------------------------------------- +150 oC Lead Temperature (Soldering, 10 sec) -------------------------------------------------- +260 oC ROOM TEMP 255 ± 5oC 10 ± 1 sec 150 ± 10 oC 90 ± 30 sec 2 ~ 5 oC / sec 2 ~ 5 o C / sec SECOND Soldering Condition Rev0.2 Nov. 09, 2004(LF) P3/FS276 DC Electrical Characteristics (at Ta = 25 oC) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage VCC No use pin is open (Fig1) 3 - 20 V Quiescent Supply current ICC No use pin is open Vcc : 3V to 20V (Fig1) - 18 20 mA Output Leakage current Ileak Vcc=12V, Vce=20V -