San Jose, Calif. – Toshiba America Electronic Components, Inc. (TAEC) has added two new parts to its family of motor controller and driver ICs. The TC78H610FNG and TB67Z800FTG motor driver ICs save space, which simplifies design for a wide range of motor applications.
The TC78H610FNG is an H bridge driver for low-voltage brushed DC motors, such as those used in battery-powered equipment, camera equipment, and household electrical devices, and can control two brushed DC motors or one stepping motor. Supplied in a SSOP16 package, the driver can reduce the required mounting area by 21 percent compared to products with similar functionality housed in SSOP20 packages. Specs include an operating voltage range from 2.5 to 15V and maximum output current of 1.0A. Output ON resistance is 1.2Ω (typical).
The TB67Z800FTG is a three-channel half-bridge driver that incorporates six double-diffused MOSFETs (DMOS). It can control a three-phase brushless DC motor by turning the DMOS on and off with the input signals from an MCU, said Toshiba. It is used in high-performance brushless DC motor applications such as server fans, water pumps, and vacuum blowers.
The TB67Z800FTG includes shoot-through current protection whereby its logic circuit prevents the half-bridge MOSFETs from being turned on simultaneously, said TAEC. This capability removes the responsibility from the microcontroller, which reduces the load on the MCU. Specs include an operating voltage range from 4 to 22V and a maximum output current of 3A. Its 5 x 5 x 0.9mm leadless VQFN package enables the IC to be mounted on a small cooling fan with its thermal radiation pad designed to further enhance cooling, according to the company.
Both devices incorporate over-current detection, thermal shutdown circuitry and an under-voltage lockout circuit to improve safety.
Availability: Both the TC78H610FNG and TB67Z800FTG entered mass production earlier this month. Samples are available immediately.