The DRV8340-Q1 device is an integrated gate driver for three-phase applications. The device provides three half-bridge gate drivers, each capable of driving high-side and low-side N-channel power MOSFETs. The dedicated Source and Drain pins enable the independent MOSFET control for solenoid application. The DRV8340-Q1 generates the correct gate drive voltages using an integrated charge pump sufficient for the high-side MOSFETs and a linear regulator for the low-side MOSFETs. The Smart Gate Drive architecture supports peak gate drive currents up to 1-A source and 2-A. The DRV8340-Q1 can operate from a single power supply and supports a wide input supply range of 5.5 to 60 V for the gate driver.
The 6x, 3x, 1x, and independent input PWM modes allow for simple interfacing to controller circuits. The configuration settings for the gate driver and device are highly configurable through the SPI or hardware (H/W) interface.
A low-power sleep mode is provided to achieve low quiescent current. Internal protection functions are provided for undervoltage lockout, charge pump fault, MOSFET overcurrent, MOSFET short circuit, phase-node short to supply and ground, gate driver fault, and overtemperature. Fault conditions are indicated on the nFAULT pin with details through the device registers for the SPI device variant.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | DRV8340-Q1 12-V / 24-V Automotive Gate Driver Unit (GDU) with Independent Half Bridge Control datasheet | PDF | HTML | 09 Mar 2017 |
| Technical article | How to achieve efficient, reliable and accurate actuation in real-time motor control systems | 25 Oct 2022 | ||
| Technical article | Understanding brushless-DC motor systems, part 2 | 20 Oct 2021 | ||
| Technical article | Understanding brushless-DC motor systems, part 1 | 18 Oct 2021 | ||
| Application note | System Design Considerations for High-Power Motor Driver Applications | PDF | HTML | 22 Jun 2021 | |
| Technical article | A basic brushless gate driver design – part 3: integrated vs. discrete half bridges | 16 Dec 2020 | ||
| Application note | Switched Reluctance Motor (SRM) Inverter Design With the DRV8343-Q1 | 30 Jan 2020 |
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