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CS8442 - 85mA Dual H-Bridge Odometer Driver with Buffered Speed Signal Output

Datasheet Summary

Description

The CS8442 is a stepper motor driver that implements an Hbridge design to drive two coils in an eight step sequence each revolution.

Each H-bridge is capable of delivering 85mA to the load.

Features

  • s Buffered Speed Sensor Output s No Cross-conduction in either H-bridge s Guaranteed Monotonic s On Chip Flyback Diodes s Fault Protection Overvoltage Short Circuit Protection Load Dump Protection to 60V Absolute Maximum Ratings Supply Voltage (VCC) (continuous) -40ûC to +105ûC Ð0.5 to 24V (100ms pulse transient) -40ûC to +105ûC Ð0.5 to 60V Input Voltage (VIN) Ð0.3 to VCC +0.3V Storage Temperature Range (TSTG)Ð65¡C to +150¡C Junction TemperatureÐ40¡C to +150¡C Speed Sensor Output 7V ESD (Human.

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Datasheet Details

Part number CS8442
Manufacturer Cherry Semiconductor Corporation
File Size 132.66 KB
Description 85mA Dual H-Bridge Odometer Driver with Buffered Speed Signal Output
Datasheet download datasheet CS8442 Datasheet
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Full PDF Text Transcription

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CS8442 CS8442 85mA Dual H-Bridge Odometer Driver with Buffered Speed Signal Output Description The CS8442 is a stepper motor driver that implements an Hbridge design to drive two coils in an eight step sequence each revolution. Each H-bridge is capable of delivering 85mA to the load. The sequencer function insures that the odometer is monotonic and that cross-conduction of each H bridges does not occur. Before the beginning of each sequence, both bridges are turned off. This Òdead zoneÓ minimizes the fly back energy generated in the inductive loads. In addition, on board clamp diodes across each output protect the output drive transistors from excessive fly back voltages. The CS8442 is fault protected against reverse battery, short circuit, and over voltage conditions.
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