TB67H450FNG,EL

Overview

The Toshiba TB67H450FNG,EL is a single-channel PWM chopper-type brushed DC motor driver manufactured using BiCD process technology. It features an integrated H-bridge with low on-resistance output MOSFETs (typical 0.6Ω). The device supports a rated voltage of 50V and a maximum continuous output current of 3.5A. Operating supply voltage ranges from 4.5V to 44V. It offers four operational modes: forward, reverse, brake, and stop. Key electrical parameters include a logic input high level of 2.0V–5.5V and low level of 0V–0.8V. The package is an 8-pin HSOP with dimensions of 5.79mm width, 5mm length, and 1.7mm height.

Feature Summary

• Integrates advanced ACDS (Advanced Current Detection System) technology for precise current control without external shunt resistors.
• Supports both PWM constant current driving and direct PWM driving modes for flexible motor control.
• Includes built-in error detection functions such as thermal shutdown (TSD), overcurrent detection (ISD), and under-voltage lockout (UVLO).
• Features a built-in VCC regulator for internal circuit operation and standby current as low as 1μA.

Applications

• Brushed DC motor control in smart home appliances like electronic locks and small electric fans.
• Robotics applications including robotic vacuum cleaners and intelligent vehicles requiring closed-loop PID control.
• Stepper motor driving when configured as dual H-bridge circuits for precision motion control.
• General purpose motor drivers in portable consumer electronics requiring compact form factors.

Procurement Notes

Verify the specific suffix EL against official Toshiba documentation to confirm packaging and tape specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Ensure PCB layout adheres to thermal dissipation guidelines due to power handling capabilities. Check for any design-in restrictions or obsolescence notices prior to final procurement decisions.

Selection Notes

Select this component for applications requiring high integration and reduced bill of materials by eliminating external current sense resistors. Suitable for designs needing robust protection features like UVLO and TSD within a small footprint. Consider thermal management requirements given the 3.5A output capability in an HSOP package. Ideal for systems where space constraints limit the use of discrete driver solutions.

Part Context

The TB67H450FNG belongs to Toshiba's series of high-performance motor driver ICs designed for embedded motion control. It utilizes BiCD process technology to combine high-voltage DMOS outputs with low-voltage CMOS logic. This integration allows for simplified peripheral circuitry compared to traditional discrete solutions. The part is distinct from higher-current variants in the same family but shares similar architectural benefits.

Replacement Considerations

Public sources indicate AS4950 as a pin-to-pin compatible alternative offering similar functionality. Verify electrical parameter matching and thermal characteristics before substitution. Ensure logic level compatibility and protection feature parity between the original and replacement parts.