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Toshiba Launches Dual H-bridge Motor Driver IC with PWM Control for Mobile Devices and Home Appliances

2020-10-22 | 返回

TOKYO—Toshiba Electronic Devices & Storage Corporation has launched an H-bridge motor driver, “TC78H660FNG,” housed in a TSSOP16 package with a widely used pin-assignment. It is Toshiba’s latest addition to its line-up of drivers for brushed DC motors and stepping motors for applications that include mobile devices and home appliances.

Toshiba’s new-generation DMOS process allows TC78H660FNG to achieve a low ON resistance of 0.48Ω at its maximum rating of 18V/2.0A,[1] and reduces heat generation compared with Toshiba’s current products.

The new driver has a regulator for driving internal circuits, and can drive a motor with a single power supply ranging from 2.5V to 16V. Its wide range of applications include mobile devices powered by a 3.7V lithium-ion battery, 5V USB powered devices, and 12V system devices for home appliances. It also supports a low 1.8V interface.

Features
> Single power drive, simple PWM control
> Low ON resistance reduces heat generation compared with Toshiba’s current products.
(Ron=0.48Ω (upper + lower: typ.) @VM=12V, Ta = 25°C)
> Low current consumption (ultra-low standby current: 0.1μA or less ＠Ta=25°C)

Applications
Battery-powered mobile devices, including robots and toys; home appliances including refrigerators, smart meters, etc.

Main Specifications

Part number	TC78H660FNG
Supply voltage (operating range)	2.5V to 16V
Output voltage (absolute maximum rating)	18V @ output ON 20V @ output OFF
Output current (absolute maximum rating)	2A
Number of H-bridge channels	2ch
Supported motors	Brushed DC motors (dual-motor control is possible) Bipolar stepping motors
Output on-resistance (upper + lower)	0.48Ω (typ.)@VM=12V, Ta=25℃
Safety function	Over current detection, thermal shut down, under voltage lockout, flag output function for over current detection and thermal shut down
Features	Current consumption in standby mode: 0.1μA or less Single power drive Support for a 1.8V I/F Direct PWM control or constant current control without current sense resistor
Package	TSSOP16 (size: 5.0mm×6.4mm)

[1] Actual motor drive current depends on the use environment and such factors as ambient temperature and power supply voltage.

For more information about the new product, visit:
TC78H660FNG

For more information about Toshiba’s motor driver IC line-up, visit:
Motor Driver

Source：http://www.semicon.toshiba.co.jp/eng/