Detailed introduction to the new low-power brush DC motor driver chip in Toshiba

Toshiba Electronic Components and Storage Devices Co., Ltd. ("Toshiba") announced that the latest member "TB67H450FNG" has been launched by its brush DC motor driver IC series. The maximum rated value of the new product is 50V / 3.5A [1], which can drive the motor with a wide working voltage. In addition, the product is packaged in small HSOP8 surface mounts allocated by a compatible foot, and is more applicable. It has been mass production. TB67H450FNG product diagram Be TB67H450FNG product diagram The new IC can drive a brush motor at a power supply voltage of 4.5V to 44V. It supports multiple types of applications, including USB power supply, battery power supply, and industrial 12 to 36V power supply equipment. In addition, TB67H450FNG also includes 3.5A current driving capability, which can be used in vacuum sweeping robots, refrigerators and other home appliances, and various applications such as office equipment, ATM machines. In order to meet the requirements of low power consumption, Toshiba also optimizes TB67H450FNG standby current consumption through the newly developed power circuit. When the motor is automatically entered the standby mode while stopping the runtime, turn off the VCC regulator for internal circuit operation. This helps to help OA equipment and household appliances reduce energy consumption, and extend battery-powered battery life. The IC uses a small surface mount HSOP8 package, which can save space and achieve good heat dissipation performance by encapsulating heat dissipation pads. Ø Main characteristics: Wide operating voltage range: 4.5V to 44V, suitable for large current drive equipment; Low tolerator current consumption: 1μA (max) @ VM = 24V, Ta = 25 ° C; Small 8-pin surface mount HSOP8 encapsulated with compatible feet, and heat dissipation is enhanced using the bottom E-type heat pad. Application: Industrial equipment, including OA equipment and bank terminals; household appliances (including vacuum sweeping robots); battery-powered equipment (electronic locks and small household robots); use 5V USB power supplies, power supply voltages and other factors. Ø Main specifications: Product number TB67H450FNG Power supply voltage (operating voltage range) 4.5V to 44V Output voltage / current (Absolute maximum rated value) 50V / 3.5A H-bridge channel quantity 1 channel Electrical machine DC brush motor Output on-resistance (upper + lower side) 0.6Ω (typ) @ vm = 24V, Ta = 25 ° C security function Expand detection, overheating protection, undervoltage lock Encapsulate HSOP8 (Size: 4.9mm × 6.0mm) Other features Current consumption in standby mode: 1 μA or lower Constant current control (Constant current PWM control) Support forward / reverse / stop control Note: The actual motor drive current depends on the environment and environment temperature, read the full story

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