TCA1560

The TCA1560 is a bipolar monolithic IC designed to control the motor current in one phase of a bipolat stepper motor. The features of TCA1560 are: (1)2.5A peak current; (2)high-speed integrated clamp diodes; (3)simple drive; (4)thermal overload protection with hysteresis.

The following is about the absolute maximum ratings of TCA1560: (1)supply voltage pin 5: -0.3V min and 45V max; (2)supply current pin 5: 0A min and 2.5A max; (3)peak current in output transistors, pin 1, 9: -2.5A min and 2.5A max; (4)diode to +Vs: 2.5A; (5)diode to ground: 2.5A; (6)input voltage, pins 2, 3, 7, 8: -0.3V min and 6V max; (7)output current, pin 4: -2.5A min.

The electrical characteristics of the TCA1560 are: (1)supply current, pin 5: 18mA typical and 30mA max at V13=V1H; (2)supply current, pin 5: 0.5mA typical and 1mA max at V13=V1L; (3)output voltage: source: 1.7V typical and 1.9V max at IQ=1A; (4)output voltage: source: 1.9V typical and 2.1V max at IQ=1.5A; (5)output voltage: sink: 1.2V typical and 1.4V max at IQ=1A; (6)output voltage: sink: 1.5V typical and 1.7V max at IQ=1.5A; (7)reverse current: 300A max.