SNOSDH5
November 2024
LMG2640
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Switching Characteristics
5.7
Typical Characteristics
6
Parameter Measurement Information
6.1
GaN Power FET Switching Parameters
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
GaN Power FET Switching Capability
7.3.2
Current-Sense Emulation
7.3.3
Bootstrap Diode Function
7.3.4
Input Control Pins (EN, INL, INH)
7.3.5
INL - INH Interlock
7.3.6
AUX Supply Pin
7.3.6.1
AUX Power-On Reset
7.3.6.2
AUX Under-Voltage Lockout (UVLO)
7.3.7
BST Supply Pin
7.3.7.1
BST Power-On Reset
7.3.7.2
BST Under-Voltage Lockout (UVLO)
7.3.8
Over-Current Protection
7.3.9
Over-Temperature Protection
7.3.10
Fault Reporting
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curve
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.1.1
Solder-Joint Stress Relief
8.4.1.2
Signal-Ground Connection
8.4.1.3
CS Pin Signal
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
1
Features
650V GaN power-FET half bridge
105
mΩ low-side and high-side GaN FETs
Integrated gate drivers with low propagation delays
Current-sense emulation with high-bandwidth and high accuracy
Low-side / high-side gate-drive interlock
High-side gate-drive signal level shifter
Smart-switched bootstrap diode function
High-side start up : < 8µs
Low-side / high-side cycle-by-cycle over-current protection
Over-temperature protection with
FLT
pin reporting
AUX idle quiescent current: 250μA
AUX standby quiescent current: 50μA
BST idle quiescent current: 65μA
Maximum supply and input logic pin voltage: 26V
9×7mm QFN package with dual thermal pads