TIDUF82B
August 2024 – May 2025
DRV8162
,
INA241A
,
ISOM8710
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Reference Design Overview
1.2
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.2.1
Hardware Design
2.2.1.1
Power Stage Gate Driver
2.2.1.1.1
Gate Driver
2.2.1.1.2
Protection Features
2.2.1.1.3
VGVDD Definition
2.2.1.1.4
Strap Functions
2.2.1.2
Power Stage FETs
2.2.1.2.1
VGS versus RDS(ON)
2.2.1.3
Phase Current and Voltage Sensing
2.2.1.3.1
Phase A and Phase B Current Sensing
2.2.1.3.2
Phase C Current Sensing
2.2.1.3.3
Voltage Sensing
2.2.1.4
Host Processor Interface
2.2.1.5
Gate Drive Shutdown Path
2.2.1.6
System Diagnostic Measurements
2.2.1.6.1
Temperature Measurement
2.2.1.7
System Power Supply
2.2.1.7.1
12V Rail
2.2.1.7.2
3.3V Rail
2.2.2
Software Design
2.3
Highlighted Products
2.3.1
DRV8162L
2.3.2
INA241A
2.3.3
AMC0106M05
2.3.4
TPSM861253
2.3.5
LMR38010
2.3.6
TMP6131
2.3.7
ISOM8710
3
Hardware, Software Test Requirements and Test Results
3.1
Hardware Requirements
3.1.1
PCB Overview
3.1.2
Hardware Configuration
3.1.2.1
Prerequisites
3.1.2.2
Default Resistor and Jumper Configuration
3.1.2.3
Connector
3.1.2.3.1
Host Processor Interface
3.2
Test Setup
3.3
Test Results
3.3.1
Power Management
3.3.1.1
Power Up
3.3.1.2
Power Down
3.3.2
Gate Voltage and Phase Voltage
3.3.2.1
20 VDC
3.3.2.2
48 VDC
3.3.2.3
60 VDC
3.3.3
Digital PWM and Gate Voltage
3.3.4
Phase-Current Measurements
3.3.5
System Test Results
3.3.5.1
Thermal Analysis
4
Design and Documentation Support
4.1
Design Files
4.1.1
Schematics
4.1.2
BOM
4.2
Tools and Software
4.3
Documentation Support
4.4
Support Resources
4.5
Trademarks
5
About the Authors
6
Revision History
4.3
Documentation Support
Texas Instruments,
DRV816x 100V Half-Bridge Smart Gate Driver with Integrated Protection and Current Sense Amplifier Data Sheet
Texas Instruments,
INA241x–5V to 110V, Bidirectional, Ultra-Precise Current Sense Amplifier With Enhanced PWM Rejection Data Sheet
Texas Instruments,
AMC0106M05 Precision, ±50mV Input, Functionally Isolated, Delta-Sigma Modulator With External Clock Data Sheet
Texas Instruments,
TMP61 ±1%, 10kΩ Linear Thermistor With 0402 and 0603 Package Options Data Sheet
Texas Instruments,
LMR38010 4.2V to 80V, 1A, Synchronous SIMPLE SWITCHER Power Converter With 40µA I
Q
Data Sheet
Texas Instruments,
TPSM86125x 3V to 17V Input, 1A, Synchronous Buck Module in QFN Package Data Sheet