TB67H303HG

Overview

The TB67H303HG is a full-bridge driver IC designed for brushed DC motors, manufactured by Toshiba Semiconductor. It operates within a supply voltage range of 8 V to 42 V and delivers an output current of 8 A. The device features a low quiescent supply current of 3.2 mA and supports PWM frequencies up to 100 kHz. It is housed in a 25-pin HZIP package suitable for through-hole mounting. The component functions reliably across an operating temperature range from -30°C to +85°C, with a power dissipation rating of 3.2 W.

Feature Summary

• Integrates a full-bridge topology for direct control of brushed DC motor direction and speed
• Includes built-in protection mechanisms against overcurrent and thermal overload conditions
• Supports high-frequency PWM input signals for precise motor speed regulation

Applications

• Industrial automation equipment requiring robust motor control
• Office automation devices such as printers and scanners
• Home appliance systems utilizing brushed DC motors

Procurement Notes

Verify the specific suffix and packaging configuration when ordering, as availability may vary by distributor. Confirm that the procurement channel provides authentic Toshiba Semiconductor products to ensure reliability. Check for updated application notes regarding thermal management strategies for the HZIP-25 package under continuous load conditions.

Selection Notes

Select this component for applications requiring a single-chip solution for medium-power brushed DC motors. The 8 A continuous current capability suits most standard industrial and consumer motor loads. Ensure the system design accommodates the through-hole mounting style and adequate heat sinking for the specified power dissipation limits.

Part Context

This part belongs to the TB67H303 series of monolithic motor drivers. It serves as a dedicated interface between logic-level controllers and high-current motor loads. The device simplifies circuit design by integrating power switches and protection circuits into a single package, reducing board space compared to discrete solutions.

Replacement Considerations

The TB67H302HG is a related dual-bridge variant within the same family. Verify pin compatibility and current ratings before substitution. No direct cross-brand equivalents are confirmed in the provided documentation.