BRIDGE DRIVER
TA7257P
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA7257P
BRIDGE DRIVER
The TA7257P is a Full Bridge...
Description
TA7257P
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA7257P
BRIDGE DRIVER
The TA7257P is a Full Bridge Driver for blashed DC Motor Rotation control. Forward Rotation, Reverse Rotation, Stop and Braking operations are available. It’s designed for Loading and Reel Motor driver for VTR and Tape Deck, and any other consumer and industrial applications. TA7257P have Operation Supply Voltage terminal and Motor Driving Supply Voltage terminal independently therefore Servo control operation is applicable.
FEATURES
l Output Current Up to 1.5 A (AVE.), and 4.5 A (PEAK). l 4 Function Modes (CW, CCW, STOP and Brake) are
Controlled by 2 Logic Signals Fed Into 2 Input Terminals. l Build in Over Current Protector and Thermal Shut Down
Circuit. l Operating Voltage Range: VCC (opr.) = 6~18 V, VS (opr.) = 0~18 V
BLOCK DIAGRAM
Weight: 1.88 g (Typ.)
1 2001-08-27
PIN FUNCTION
PIN No.
1 2 3 4 5 6 7
SYMBOL
FUNCTIONAL DESCRIPTION
IN1 IN2 OUT1 GND OUT2 VS VCC
Input terminal Input terminal Output terminal GND terminal Output terminal Supply voltage terminal for Motor drive Supply voltage terminal for Logic
FUNCTION
IN1 1 0 1 0
IN2
1 1 0 0
OUT1
L L H
OUT2
L H L
MODE
Brake CW / CCW CCW / CW Stop
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC
Peak Supply Voltage
Peak Operate
Output Current
PEAK AVE.
Power Dissipation
Operating Temperature
Storage Temperature
Note: Tc = 75°C
SYMBOL
VCC (MAX) VCC (opr.) IO (PEAK) IO (AVE.)
PD Topr Tstg
RATING
25 18 4.5 1.5 12.5 (Note)...
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