Ic Motor Pre-Dvr 3ph Sc-54
The LB11697V is a direct PWM drive predriver IC designed for three-phase power brushless motors. A motor driver circuit with the desired output power voltage and current can be implemented by adding discrete transistors in the output circuits. Furthermore, the LB11697V provides a full complement of protection circuits allowing it to easily implement high-reliability drive circuits. Note that the LB11697V is a modified version of the LB11696V in which the output logic has been optimized for 12 V system motors. This allows the number of external components to be reduced in application circuits.
Features
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Three-phase bipolar drive
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Direct PWM drive controlled either by control voltage or PWM variable duty pulse input
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Built-in forward/reverse switching circuit
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Start/stop mode switching circuit stop mode power saving function
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Built-in input amplifier
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5 V regulator output VREG pin
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Current limiter circuit Supports 0.25 V typical reference voltage sensing based high-precision detection
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Undervoltage protection circuit The operating voltage can be set with a zener diode
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Automatic recovery type constraint protection circuit with protection operating state discrimination output RD pin
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Four types of Hall signal pulse outputs
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Supports thermistor based thermal protection of the output transistors