SLVAFZ3
December 2024
DRV8161
,
DRV8162
,
DRV8350
,
DRV8350F
,
DRV8353
,
DRV8353F
1
Abstract
Trademarks
1
Introduction
2
System Power Requirements
3
Motor Current and MOSFET Selection
3.1
How Does a BLDC Motor Driver System Work?
3.2
Motor Current and QG Value Relation
3.3
Role of a Motor Driver
3.4
Can my MOSFET be Driven or Commutated?
3.4.1
Example 1 – Medium Power (4.8kW – 48V × 100A)
3.4.2
Example 2 – High Power (19.2kW – 48V × 400A)
4
Motor Driver Specifications to Consider
4.1
DRV8353 - Internally Generated Gate Drive Supply
4.2
DRV8161/DRV8162 – Externally Generated Gate Drive Supply
5
Advantages of TI’s BLDC Drivers With Smart Gate Drive
6
Maximum Source and Sink Current and QGD
7
Older Designs
8
Summary
9
References
9
References
Texas Instruments,
DRV816x 100V Half-Bridge Smart Gate Driver with Integrated Protection and Current Sense Amplifier
, data sheet.
Texas Instruments,
DRV835x 100-V Three-Phase Smart Gate Driver
, data sheet.
Texas Instruments,
Understanding Smart Gate Drive
, application note.
Texas Instruments,
48V, 3.5kW Small Form-Factor Three-Phase Inverter Reference Design for Integrated Motor Drives
, design guide.
Texas Instruments,
Three-Phase vs Three-Single Half-Bridge Gate Drivers
, application note.