M54641L RENESAS | Alldatasheet

Document overview

  • Manufacturer or author: pROVIDED bY alldatasheet.com(free datasheet download site)
  • PDF pages: 9

Technical content

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 V Z pin, the output “H ” voltage does not rise over the Zener voltage and the motor rotates at constant speed. If the V Z 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 2 of 8 Pin Configuration Outline 8P5 Output voltage control Power supply Output 2 Input 2 Output power supply Input 1 Output 1 VZ VCC O 2 IN2 VCC ’ IN1 O 1 GND Outline 10P2-C VZ IN2 VCC ’ O 1 NC Output voltage control Input 2 Output power supply Output 1 GND IN1 VCC O 2 NC Input 1 Output 2 Power supply NC: noconnection M54641L M54641FP Logic Truth Table Input Output IN1 IN2 OO OO1 OO OO2 Remarks L “OFF” state “OFF” state No operation of IC H L H L ex Forward rotation L H L H Reverse rotation H H L L Brake

Rev.1.0, Sep.19.2003, page 3 of 8 Block Diagram Power supply VCC Output power supply VCC ’ Constant voltage source Output voltage controlVZ Output 2O 2 Output 1O 1 Input circuit Input circuit Control circuit Output circuit Output circuit Input 1IN1 Input 2 IN2 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. VCC ’ Output GND VZOutput circuitInput circuit1 2 GND VCC 15k1k IN Input

Rev.1.0, Sep.19.2003, page 4 of 8 Absolute Maximum Ratings (Ta = 25°C, unless otherwise noted.) Parameter Symbol Ratings Unit Conditions Supply voltage V CC −0.5 to +12 V Output Supply voltage VCC ’ −0.5 to +20 V Input voltage VI 0 to Vcc V VI<VCC Output voltage VO −0.5 to VCC’+2.5 V Allowable motor rush current I O (max) ±800 mA t OP =10ms: cycle time 0.2Hz or less Continuous output current IO ±150 mA Power dissipation Pd 570 mW Ta = 60°C(M54641L) Junction temperature Tj 100 °C Operating temperature Topr −10 to 60 °C Storage temperature Tstg −55 to 125 °C 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 IO ±100 mA “H” input voltage VIH 3.0 V CC V “L” input voltage VIL 0 0.6 V Motor braking interval tS 10 100 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 Min. Typ. Max. Unit Test conditions Output leak current IO (leak) 100 µA V O = 20V −100 VCC ’ = 20V VZ: Open VO = 0V “H” output saturation voltage VOH 10.2 10.5 V IOH = −50mA 10.0 10.4 VCC ’ = 12V VZ: Open IOH = −100mA “L” output saturation voltage VOL 0.1 0.3 V IOH = 50mA 0.2 0.4 VCC ’ = 12V VZ: Open IOH = 100mA Voltage between outputs (1) and (2) (Voltage across Motor) V O1-O2 6.3 7.0 7.7 V V CC ’ = 12V VZ = 7V IO = ±100mA Input voltage II 100 180 µA V CC ’ = 12V V I = 3V Output open 240 380 VI = 5V Supply current ICC 1.2 3.0 mA In “OFF” state 4.5 8.0 Forward rotation or reverse rotation 7.5 12.0 VCC = 10V VCC ’ = 12V Output OPEN Braking

Rev.1.0, Sep.19.2003, page 5 of 8 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) 25 50 60 75 100 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Power Dissipation Pd(max) (W) Ambient Temperature Ta (C) t = 20sec t = t = 10sec Thermal Derating (M54641FP) (Absolute Maximum Rating) 25 50 60 75 100 0.2 0.4 0.6 0.8 Power Dissipation Pd(max) (W) Ambient Temperature Ta (C) “H” Output Saturation Characteristics Ta = 25C VCC ’= 12V VZ = Open “H” Output Current IOH (mA) “H” Output Voltage VCC’-VOH (V) -50 -100 -150 -200 “L” Output Saturation Characteristics Ta = 25C VCC ’= 12V VZ = Open “L” Output Current IOL (mA) “L” Output Voltage VOL (V) 100 150 200

Rev.1.0, Sep.19.2003, page 6 of 8 Application Example 876543 21 M VB 10 – 100µF IN1 IN2 10 9 8 7 6 1 2 3 4 5 M VB IN1 IN2 3 10 – 100µF M54641L M54641FP 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 7 of 8 Package Dimensions Weight(g) — 0.73 JEDEC Code Lead Material Cu AlloySIP8-P-340-2.54 8P5 Plastic 8pin 340mil SIP — — 6.4 — 19.218.8 Symbol Min Nom Max A b c D E L Dimension in Millimeters 3.0 2.54 1.31.21.1 3.02.82.6 19.0 0.340.270.22 1.150.850.75 1.51.21.1 0.60.50.4 1.2 8.3 e — D A2 A1 A L be SEATING PLANE c E

Rev.1.0, Sep.19.2003, page 8 of 8 SOP10-P-300-1.27 Weight(g) — 0.12 JEDEC CodeEIAJ Package Code Lead Material Alloy 42/Cu Alloy 10P2-C Plastic 10pin 300mil SOP Symbol Min Nom Max A b c D E H E L y Dimension in Millimeters 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 — —— 0.1 0˚ — 10˚ — 0.76 — — 7.62 — —1.27— 2.15 e 10 6 HE E D e y F A A2 A1 L c Detail F e b2 Recommended Mount Pad x —Z1 0.525 0.675 0.25 z z Z1 Detail G b x M G

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