M54641L/FP Bi-Directional Motor Driver with Brake Function REJ03F0043-0100Z Rev.1.0 Sep.19.2003 Description The M54641 is a semiconductor integrated circuit that is capable of directly driving a smallsize bi-directional motor rotating in both forward and reverse directions. Features • • • • • Wide range of operating voltage (VCC = 4 – 10V,VCC’(max) = 20V) Low output saturation voltage in stationary motor circuit (largevoltage across motors) Built-in clamp diode Provided with output voltage control pin (VZ) Built-in thermal shutdown circuit (Tj(shut) = 120°C standard) Application Sound equipment such as tape deck and radio cassette, and VTR Function The M54641 is an IC for driving a smallsize bi-directional motor that rotates in both forward and reverse directions. Giving signal to inputs IN1 and IN2 outputs the signal of the same phase to output pins O1 and O2. That is, giving high-level signal to input IN1 and low-level signal to input IN2 sets output O1 to high-level and output O2 to low-level. Connection of a motor between output pins O1 and O2 uses O1 as an output current source and O2 as an output current sink to rotate the motor. In addition, giving the reverse signal to inputs IN1 and IN2 sets O1 and O2 to low-level and high-level, respectively, resulting in rotating the motor reversely. However, when both IN1 and IN2 are set to “H”, both O1 and O2 are set to low-level, resulting in sudden stop of motor rotation. (Brake mode) If the Zener diode of certain voltage, for example, is added to the VZ pin, the output “H” voltage does not rise over the Zener voltage and the motor rotates at constant speed. If the VZ pin is connected to the output power supply VCC’ pin, the rotating speed of the motor can be varied by varying the VCC’ voltage. The motor rush current and the current with the motor put in stationary status are as follows: Iop(max) = 800mA and IO(max) = 150mA. Rev.1.0, Sep.19.2003, page 1 of 8 M54641L/FP Pin Configuration Power supply VCC 1 Output 2 O2 2 Input 1 IN1 3 4 VZ 5 Input 2 IN2 6 Output 1 O1 7 Output power VCC’ supply 8 M54641L GND Output voltage control Outline 8P5 VZ 1 6 GND Input 2 IN2 2 7 IN1 Input 1 Output 1 O1 3 8 O2 Output 2 Output power VCC’ supply NC 4 9 VCC Power supply M54641FP Output voltage control 5 10 Outline 10P2-C NC NC: no connection Logic Truth Table Input Output IN2 O1 O2 Remarks L “OFF” state “OFF” state No operation of IC H L L H H L L H ex Forward rotation Reverse rotation H H L L Brake IN1 Rev.1.0, Sep.19.2003, page 2 of 8 M54641L/FP Block Diagram Power supply VCC Output power supply VCC’ Constant voltage source Input 1 IN1 VZ Output voltage control Input circuit Control circuit Input 2 IN2 Input circuit Output circuit O2 Output 2 Output circuit O1 Output 1 GND Though the IC is equipped with a thermal shutdown circuit for prevention against thermal breaking, the threshold temperature is set to 100°C min. Set the driving current in such a way that this thermal shutdown circuit cannot operate during normal operation. 1 2 Input circuit VCC Output circuit VZ VCC’ Output Input IN 1k 15k GND Rev.1.0, Sep.19.2003, page 3 of 8 GND M54641L/FP Absolute Maximum Ratings (Ta = 25°C, unless otherwise noted.) Parameter Symbol Ratings Unit Supply voltage VCC −0.5 to +12 V Output Supply voltage Input voltage VCC’ VI −0.5 to +20 0 to Vcc V V VI<VCC Output voltage Allowable motor rush current VO IO(max) −0.5 to VCC’+2.5 ±800 V mA tOP =10ms: cycle time 0.2Hz or less Continuous output current Power dissipation IO Pd ±150 570 mA mW Ta = 60°C(M54641L) Junction temperature Operating temperature Tj Topr 100 −10 to 60 °C °C Storage temperature Tstg −55 to 125 °C Conditions Recommended Operating Condition (Ta = 25°C, unless otherwise noted.) Limits Parameter Symbol Min. Typ. Max. Unit Supply voltage VCC 4 5 10 V Output current “H” input voltage IO VIH 3.0 ±100 VCC mA V “L” input voltage Motor braking interval VIL tS 0 10 0.6 100 V ms Operation temperature of thermal protection circuit (junction temperature) TS 100 120 °C Electrical characteristics (Ta = 25°C, VCC = 5.0V, unless otherwise noted.) Limits Parameter Symbol Output leak current IO(leak) Min. Typ. Max. Unit Test conditions 100 µA VCC’ = 20V VZ: Open VO = 0V V VCC’ = 12V VZ: Open IOH = −50mA IOH = −100mA −100 “H” output saturation voltage VOH “L” output saturation voltage VOL Voltage between outputs (1) and (2) (Voltage across Motor) Input voltage VO1-O2 Supply current 10.2 10.0 10.5 10.4 VO = 20V 0.1 0.2 0.3 0.4 V VCC’ = 12V VZ: Open IOH = 50mA IOH = 100mA 7.0 7.7 V IO = ±100mA II 100 180 µA VCC’ = 12V VZ = 7V VCC’ = 12V ICC 240 1.2 380 3.0 mA 4.5 8.0 7.5 12.0 Rev.1.0, Sep.19.2003, page 4 of 8 6.3 VI = 3V Output open VI = 5V VCC = 10V VCC’ = 12V Output OPEN In “OFF” state Forward rotation or reverse rotation Braking M54641L/FP Typical Characteristics Condition • With basic installation (epoxy board of 5cm x 5cm x 0.8mmt with copper foil on a single side) • t : Power apply time Thermal Derating (M54641L) (Absolute Maximum Rating) 1.6 Thermal Derating (M54641FP) (Absolute Maximum Rating) 0.8 t = 20sec 1.2 Power Dissipation Pd(max) (W) Power Dissipation Pd(max) (W) 1.4 t = 10sec t= 1.0 0.8 0.6 0.4 0.2 0 0 25 50 60 75 0.6 0.4 0.2 0 0 100 25 Ambient Temperature Ta (C) 100 “L” Output Saturation Characteristics -200 200 Ta = 25C VCC’ = 12V VZ = Open Ta = 25C VCC’ = 12V VZ = Open “L” Output Current IOL (mA) “H” Output Current IOH (mA) 75 Ambient Temperature Ta (C) “H” Output Saturation Characteristics -150 -100 -50 0 50 60 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 “H” Output Voltage VCC’-VOH (V) Rev.1.0, Sep.19.2003, page 5 of 8 150 100 50 0 0 0.1 0.2 0.3 0.4 “L” Output Voltage VOL (V) 0.5 M54641L/FP Application Example 2 3 VB VB 10 – 100µF M IN1 IN2 8 7 6 5 4 3 2 10 – 100µF 3 IN1 1 10 9 8 7 6 4 5 M54641L M M54641FP 1 2 3 IN2 2 CAUTIONS Since the thermal protection function of this IC may not work in abnormal status (oscillation, low supply voltage, output short-circuit, etc.), check the operation in the IC installation status when using this function. When the motor back electromotive force is large with the brakes applied, for example, malfunction may occur in internal parasitic Di. If flyback current of 1A or more flows, add Schottky Di to the portion between the output and the GND. When the IC is used at a high speed for PWM, etc., note that switching of output results in delay of approx. 10µs. Rev.1.0, Sep.19.2003, page 6 of 8 e D b1 b b2 Weight(g) 0.73 8 Lead Material Cu Alloy A JEDEC Code — SEATING PLANE 1 EIAJ Package Code SIP8-P-340-2.54 A2 A1 Rev.1.0, Sep.19.2003, page 7 of 8 L 8P5 c E E1 A A1 A2 b b1 b2 c D E E1 e L Symbol Dimension in Millimeters Min Nom Max 8.3 — — — — 1.2 — — 6.4 0.4 0.5 0.6 1.1 1.2 1.5 0.75 0.85 1.15 0.22 0.27 0.34 19.0 19.2 18.8 2.6 2.8 3.0 1.2 1.3 1.1 — — 2.54 — — 3.0 Plastic 8pin 340mil SIP M54641L/FP Package Dimensions HE G Z1 1 10 e EIAJ Package Code SOP10-P-300-1.27 E Rev.1.0, Sep.19.2003, page 8 of 8 z D y Detail G b 5 6 JEDEC Code — x M F Weight(g) 0.12 A L1 A2 Detail F c Lead Material Alloy 42/Cu Alloy A1 Symbol e1 b2 e1 I2 A A1 A2 b c D E e HE L L1 z Z1 x y b2 Dimension in Millimeters Min Nom Max — 2.15 0.05 — — — 1.75 — 0.4 0.45 0.55 0.13 0.15 0.2 5.93 6.13 6.33 5.1 5.3 5.5 — 1.27 — 7.82 8.12 8.42 0.3 0.5 0.7 — 1.41 — — — 0.525 0.675 — — 0.25 — — — — 0.1 0˚ — 10˚ — 0.76 — — 7.62 — — 1.27 — Recommended Mount Pad e Plastic 10pin 300mil SOP I2 10P2-C M54641L/FP L Sales Strategic Planning Div. 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