54543AL

DataSheet.in MITSUBISHI ICs (AV COMMON) M54543AL Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION AND THERMAL SHUT DOWN FUNCTION DESCRIPTION The M54543AL is a semiconductor IC capable of directly driving a smallsize bi-directional motor for forward/reverse rotation. PIN CONFIGURATION (TOP VIEW) FEATURES 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) = ±1.5A) With brake function Built-in thermal shut-down protector circuit POWER SUPPLY 1 VCC1 1 2 3 4 5 6 7 8 9 DRIVER POWER SUPPLY 1 VCC' 1 OUTPUT 2 INPUT 1 O2 IN1 GND INPUT 2 OUTPUT 1 IN2 O1 APPLICATION Commercial-use equipment, audio such as tape recorder or radio cassette recorder, and VCR. DRIVER POWER SUPPLY 2 VCC' 2 POWER SUPPLY 2 VCC2 FUNCTIONAL DESCRIPTION The M54543AL 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...