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TB6569FG

Full-bridge DC motor driver, 50V, 4.5A peak, PWM constant-current, HSOP-16, OCP/OVP/TSD/UVLO

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Manufacturer Part：

TB6569FG

Package：

HSOP-16 (11.30 x 7.50 x 2.30 mm)

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Description

Product Overview

The TB6569FG from Toshiba is a Full-Bridge DC Motor Driver IC with MOS output transistors, PWM control, and comprehensive protection features. Operating from up to 50V supply with 4.5A peak output current, it supports direct PWM and PWM constant-current control for brushed DC motor applications in industrial and automotive systems.

Key Specifications

Supply Voltage 50 V (max)
Output Current (peak) 4.5 A
Control Mode Direct PWM, PWM constant-current
Operating Modes CW / CCW / Short Brake / Stop
Protection OCP, OVP, TSD, UVLO
Package HSOP16-P-300-1.00
Operating Temperature -40C to +85C

Features

  • Full-bridge MOS output transistors for efficient motor drive
  • PWM constant-current control for precise torque regulation
  • Adjustable overcurrent shutdown threshold via external resistor
  • Built-in dead time for shoot-through prevention
  • Comprehensive protection: OCP, OVP, TSD, UVLO

Applications

  • Brushed DC motor control in industrial automation
  • Automotive motor drive systems
  • Robotics and mechatronics
  • Home appliances with motor control

The TB6569FG from Toshiba is a full-bridge DC motor driver IC with integrated MOS output transistors capable of delivering up to 4.5A peak output current from a supply voltage up to 50V. The device supports both direct PWM control and PWM constant-current control for precise torque regulation. Operating modes include CW, CCW, Short Brake, and Stop. The overcurrent shutdown threshold is adjustable via an external resistor on the VISD pin, and the shutdown time is adjustable via the TISD pin. Comprehensive protection features include overcurrent shutdown (ISD), overvoltage shutdown (VSD), thermal shutdown (TSD) at 170C typical, and undervoltage lockout (UVLO) at 8.0V typical.

The TB6569FG integrates a full H-bridge power stage with control logic and protection circuits. (1) H-Bridge: Four N-channel MOSFETs form a full-bridge configuration that drives the motor in forward (CW), reverse (CCW), short brake, or stop modes. Built-in dead time prevents shoot-through current during switching transitions. (2) PWM Control: In direct PWM mode, the PWM signal directly controls the output switches. In constant-current mode, an internal current sense circuit monitors the motor current and modulates the PWM duty cycle to maintain the set current level. (3) Protection: The ISD pin allows external resistor programming of the overcurrent threshold. The TISD pin allows programming of the shutdown delay time. Thermal shutdown activates at approximately 170C junction temperature with hysteresis. Overvoltage shutdown protects against supply voltage transients, and UVLO prevents operation below 8.0V.

Pin Name Type Function
1 OUT1+ Output Motor output 1 (high-side)
2 VBB Power Motor supply voltage
3 OUT1- Output Motor output 1 (low-side)
4 PGND1 Ground Power ground 1
5 OUT2- Output Motor output 2 (low-side)
6 PGND2 Ground Power ground 2
7 OUT2+ Output Motor output 2 (high-side)
8 VBB Power Motor supply voltage
  • Industrial automation brushed DC motor control with PWM constant-current regulation
  • Automotive motor drive for wipers, windows, and seat adjustment
  • Robotics and mechatronics with adjustable overcurrent protection
  • Home appliances including washing machines and refrigerators
Manufacturer Part Number Package Notes
Toshiba TB67H452FTG QFN-24 Newer generation H-bridge
Infineon TLE9201SG TSDSO-14 Similar H-bridge driver
Allegro A4950 SOIC-8 Single H-bridge, lower current
TI DRV8871DDAR HTSSOP-8 3.6A H-bridge
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Contact Information

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Tel / WhatsApp: +86 13760382860

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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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