TB6674PG,C,8

Overview

The TB6674PG,C,8 is a two-phase bipolar stepper motor driver IC manufactured by Toshiba Semiconductor and Storage. It integrates control logic and power MOSFETs in a single chip. The device supports a load voltage range of 2.7 V to 22 V and delivers an output current of 400 mA. It operates within a temperature range of -30°C to +75°C. The component utilizes a DIP-16 through-hole package. Power supply voltage requirements are specified between 4.5 V and 5.5 V, with a typical operating supply current of 3 mA. Maximum power dissipation is rated at 1.4 W.

Feature Summary

• Integrates dual-bridge driver circuitry for bipolar stepping motor applications
• Includes built-in punch-through current restriction for system reliability
• Supports TTL-compatible input signals for interface flexibility

Applications

• Head actuator drives for floppy disk drives
• General purpose bipolar stepper motor control systems
• Compact motion control modules requiring low power consumption

Procurement Notes

Verify the specific suffix C,8 against official Toshiba documentation to confirm package type and lead-free status. Confirm end-of-life status as distributors may list obsolete inventory. Ensure compatibility with existing PCB footprints for DIP-16 packages before ordering. Check for RoHS compliance details in the latest datasheet revision.

Selection Notes

Select this component for applications requiring integrated bipolar drive capabilities without external discrete transistors. Consider the 400 mA output limit when sizing for motor loads. Evaluate thermal management requirements given the 1.4 W power dissipation rating in the DIP-16 package. Verify that the 2.7 V to 22 V load voltage range matches the motor specifications.

Part Context

This part belongs to the TB6674 series of stepper motor drivers from Toshiba. The PG suffix typically denotes a plastic DIP package variant. The series is designed for compact, low-power motor control solutions. It shares functional similarities with other Toshiba bipolar drivers but differs in package and specific electrical ratings.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Toshiba technical support or authorized distributors for qualified alternatives if this component is discontinued.