Toshiba Launches Dual H-bridge Motor Driver IC With PWM Control for Mobile Devices and Home Appliances
TOKYO: Toshiba Electronic Devices & Storage Corporation ("Toshiba") 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 includes 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 |
|
|
Supply voltage |
2.5V to 16V |
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Output voltage |
18V @ output ON |
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Output current |
2A |
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Number of H-bridge channels |
2ch |
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Supported motors |
Brushed DC motors (dual-motor control is possible) |
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Output on-resistance |
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 |
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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 |
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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.
