MITSUBISHI ICs (AV COMMON) M54543L Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M54543L is a semiconductor IC capable of directly driving a smallsize bi-directional motor for forward/reverse rotation. FEATURES VCC1 1 DRIVER POWER SUPPLY 1 VCC' 1 2 POWER SUPPLY 1 OUTPUT 2 O2 3 INPUT 1 IN1 4 GND 5 INPUT 2 IN2 6 OUTPUT 1 O1 7 DRIVER POWER SUPPLY 2 VCC' 2 8 POWER SUPPLY 2 9 APPLICATION Commercial-use equipment, audio such as tape recorder or radio cassette recorder, and VCR. FUNCTIONAL DESCRIPTION The M54543L is an IC for driving a smallsize bi-directional motor for forward/reverse rotation. When both of inputs 1 and 2 are "L", outputs 1 and 2 are "OFF". When input 1 is "H" and input 2 is "L", output 1 is "H" and output 2 is "L" (forward rotation). When input 1 is "L" and input 2 is "H", output 1 is "L" and output 2 is "H" (reverse rotation). When both of inputs 1 and 2 are "H", both of outputs 1 and 2 are "L" (braking). The IC is provided with a control circuit power supply (Vcc) and an output power supply (Vcc') independently. The motor rotation speed can be changed by operating Vcc and Vcc' from a separate supply and varying the voltage of Vcc or Vcc'. VCC2 M54543L Wide operating voltage range (Vcc = 4V to 16V) Direct drive capability by TTL, PMOS and CMOS IC outputs Low output saturation voltage (large voltage across motor) Built-in clamp diode Large output current drive (Io (max) = ±1.2A) With brake function Outline 9P9 LOGIC TRUTH TABLE INPUT OUTPUT NOTE IN1 IN2 O1 O2 L L "OFF" state "OFF" state H L H L ex.Forward L H L H ex.Reverse H H L L Braking Open BLOCK DIAGRAM POWER SUPPLY 1 VCC1 DRIVER POWER SUPPLY 1 VCC' 1 OUTPUT 2 O2 OUTPUT 1 O1 DRIVER POWER SUPPLY 2 VCC' 2 POWER SUPPLY 2 VCC2 1 2 3 7 8 9 4 5 6 IN1 INPUT 1 GND IN2 INPUT 2 MITSUBISHI ICs (AV COMMON) M54543L Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise noted) Symbol Parameter Conditions Ratings Unit -0.5 to +16 V -0.5 to +20 V VCC (1) Supply voltage (1) VCC (2) Supply voltage (2) VCC' Driver supply voltage VI Input voltage VO Output voltage IO (max) Peak output current IO (1) Continuous output current (1) IO (2) Continuous output current (2) With an external heat sink (3000mm ×1.5mm) Pd Power dissipation Ta=75°C 1.15 W Topr Operating temperature -10 to +75 °C Tstg Storage temperature -55 to +125 °C 2 With an external heat sink (3000mm ×1.5mm) -0.5 to +16 V 0 to VCC V -0.5 to VCC'+2.5 V top=10mS : Repetitive cycle 0.2Hz max 2 ±1.2 A ±330 mA ±600 mA RECOMMENDED OPERATING CONDITIONS (Ta=25°C, unless otherwise noted) Symbol Parameter Limits Test conditions Min. Typ. Max. 4 12 15 Unit VCC Supply voltage IO Continuous output current ±300 mA VIH "H" Input voltage 2 VCC V VIL "L" Input voltage 0 0.4 tB Motor braking interval 10 100 V V ms ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise noted) Symbol Typ. Max. VO=20V 100 VI1=VI2=0V VO=0V -100 Output leak current VOH (1) "H" Output saturation voltage (1) VCC=VCC'=12V VOH (2) "H" Output saturation voltage (2) VCC=VCC'=12V VOL (1) "L" Output saturation voltage (1) VCC=VCC'=12V VI1=2V IOH (1)=-300mA 10.8 11.2 VI2=0V IOH (1)=-500mA 10.7 11.1 VI1=0V IOH (2)=-300mA 10.8 11.2 VI2=2V IOH (2)=-500mA 10.7 11.1 VI1=0V IOL (1)=300mA VI2=2V VI1=VI2=2V VI1=2V "L" Output saturation voltage (2) Min. VCC=VCC'=20V IO (leak) VOL (2) Limits Test conditions Parameter VCC=VCC'=12V VI2=0V IOL (1)=500mA µA V V 0.18 0.5 0.3 0.65 0.3 0.65 IOL (2)=300mA 0.18 0.5 IOL (2)=500mA 0.3 0.65 0.3 0.65 VI1=VI2=2V Unit V V IIH (1) "H" Input current (1) VCC=VCC'=12V, VI1=2V, VI2=0V 70 200 µA IIH (2) "H" Input current (2) VCC=VCC'=12V, VI1=0V, VI2=2V 70 200 µA VI1=2V, VI2=0V ICC Supply current VCC=VCC' =16V VI1=0V, VI2=2V Output open VI1=VI2=2V VI1=VI2=0V 40 mA 60 0 MITSUBISHI ICs (AV COMMON) M54543L Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION TYPICAL CHARACTERISTICS ALLOWABLE PACKAGE POWER DISSIPATION Pd (max) (W) THERMAL DERATING (MAXIMUM RATING) 8 2 25cm ×1.5mm (t) ALUMINUM HEAT SINK 6 4 FREE AIR 2 0 0 25 50 75 100 AMBIENT TEMPERATURE Ta (°C) "H" OUTPUT SATURATION "L" OUTPUT SATURATION 600 VCC=VCC'=12V "L" OUTPUT CURRENT IOL (mA) "H" OUTPUT CURRENT IOH (mA) -600 -500 Ta=75°C -400 Ta=50°C -300 -200 Ta=25°C Ta=-20°C -100 0 Ta=75°C 500 Ta=50°C Ta=25°C Ta=-20°C 400 300 200 100 VCC=VCC'=12V 0 0 0.2 0.4 0.6 0.8 1.0 "H" OUTPUT VOLTAGE VCC'-VOH (V) 0 0.2 0.4 0.6 0.8 "L" OUTPUT VOLTAGE VOL (V) 1.0 MITSUBISHI ICs (AV COMMON) M54543L Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION PRECAUTIONS FOR APPLICATION (1) If the motor resistance is high (small output current: several tens of mA at a light load) and Vcc is greater than Vcc' in application examples 2) and 3), current may counter-flow from the Vcc pin to the Vcc' pin. The motor can work at a light load even when the Vcc' pin is opened. For light-load applications, use the M54544L. Through current of 2 to 4A flows from the power supply to GND for 2 to 4us when switching a mode. Remember to connect a capacitor of 10 to 100µF between the output power supply and the GND. If the motor has a large counter electromotive force at a braking time, etc., the internal parasitic Di may malfunction. If fly-back current of 1A or more flows, put a shottkey Di between the output and the GND. Remember that the IC has an about 10µs delay in output switching for high-speed applications such as PWM. (2)As far as motor control and driver IC's are concerned, some possibilities are considered for these IC's to cause such unexpected cases as fire or smoke if they are used beyond its ratings in datasheet or used, even transiently, under the overload conditions. So your action will be highly appreciated to fully look into the rating limits and the using conditions before you use these IC's. And if these IC's are to be used under the conditions out of our specifications, please never fail to give us a contact as to under what conditions they are used. APPLICATION EXAMPLES 1) Motor speed control by VCC and VCC' R2=3Ω VB R1=2Ω C 10 to 100µF M INPUT 1 INPUT 2 9 8 7 6 5 4 3 2 1 M54543L 2) Motor speed control by the VCC' VCC 2Ω C 10 to 100µF C 1 to 10µF M INPUT 1 INPUT 2 9 8 7 6 5 4 3 2 1 M54543L 3) Motor speed control by the VCC 1 to 10µF 2Ω C VCC' C 10 to 100µF M INPUT 1 INPUT 2 9 8 7 6 5 4 M54543L 3 2 1