M56750FP资料.pdf

Rev.1.0, Sep.19.2003, page 1 of 8 M56750FP 3-PHASE BRUSHLESS MOTOR DRIVER REJ03F0049-0100Z Rev.1.0 Sep.19.2003 Outline M56750FP is a 3 phase brushless motor driver that include charge pump circuit, which is inputted a acceleration and deceleration pulse signal from a external discriminator circuit. The pulse width is converted to the voltage by the above charge pump circuit and a external filter. And, the current in proportion to this voltage is outputted. Features ? Wide voltage range: From 12V to 24V. ? High current capability : 1.0A ? Inclusion of current limit circuit. ? Inclusion of charge pump circuit. ? Inclusion of Hall-sensors drive circuit. (This function is linked with a power save function.) ? Inclusion of power save function. ? Inclusion FG amplifier. ? Inclusion of Thermal Shut Down (TSD) circuit. Application Scanner motor of Laser Beam Printer. M56750FP Rev.1.0, Sep.19.2003, page 2 of 8 Pin Configuration 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36Vcc CI TEST PS ACC DEC GND RCP CPOUT VCTL FGOUT FG+ FG- Hw- Hw+ Hv- Hv+ Hu- Hu+ GND HD RS RNF U V W 36pin SSOP package M 5 6 7 5 0 F P Block Diagram + - + - + - 7 to 1 2 , 2 5 to 3 0 G N D 120? MATRIX RNFU V W Vcc VCTLHu+ Hu- Hv+ Hv- Hw+ Hw- RS CI FG FGOUT FG-FG+ ACC DEC RCP CHARGE PUMP CPOUT PS TEST VLIM TSD BIAS HD HALL DRIVER 1 36 35 34 32 4 31 33 3 5 6 24 23 22 21 20 19 2 16 17 18 15 14 13 I / I Converte V / V Converte M56750FP Rev.1.0, Sep.19.2003, page 3 of 8 Pin Description Terminal Symbol Function Terminal Symbol Function 1 VCC Power Supply 36 U U phase output 2 CI Phase compensation 35 V V phase output 3 TEST Test terminal 34 W W phase output 4 PS Power save 33 RS Current sensing output 5 ACC Acceleration signal input 32 RNF Current sensing 6 DEC Deceleration signal input 31 HD Hall-elements drive 7 to 12 GND GND 25 to 30 GND GND 13 RCP Setting of charge pump output current. 24 Hu