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TPS7H502x-SP and TPS7H502x-SEP Radiation-Hardened 1MHz Current Mode PWM Controller With Integrated Gate Driver
SLVSHI9
March 2025
TPS7H5020-SEP
ADVMIX
CONTENTS
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TPS7H502x-SP and TPS7H502x-SEP Radiation-Hardened 1MHz Current Mode PWM Controller With Integrated Gate Driver
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
5
Device Options Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Quality Conformance Inspection
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Input Voltage (VIN) and VLDO
8.3.2
Driver Input Voltage (PVIN)
8.3.3
Start-Up
8.3.4
Enable and Undervoltage Lockout (UVLO)
8.3.5
Voltage Reference
8.3.6
Error Amplifier
8.3.7
Output Voltage Programming
8.3.8
Soft Start (SS)
8.3.9
Switching Frequency and External Synchronization
8.3.9.1
Internal Oscillator Mode
8.3.9.2
External Synchronization Mode
8.3.10
Duty Cycle Limit
8.3.11
Minimum On-Time and Off-Time
8.3.12
Pulse Skipping
8.3.13
Leading Edge Blank Time
8.3.14
Current Sense and PWM Generation (CS_ILIM)
8.3.15
Gate Driver Output
8.3.16
Unpowered Voltage Clamp
8.3.17
Sourcing Driver Return (OUTH_REF)
8.3.18
Slope Compensation (RSC)
8.3.19
Frequency Compensation
8.3.20
Thermal Shutdown
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Switching Frequency
9.2.2.2
Output Voltage Programming Resistor Selection
9.2.2.3
Driver PVIN Configuration
9.2.2.4
Soft-Start Capacitor Selection
9.2.2.5
Transformer Design
9.2.2.6
Primary Power Switch Selection
9.2.2.7
Output Diode Selection
9.2.2.8
RCD Clamp
9.2.2.9
Output Capacitance Selection
9.2.2.10
Current Sense Resistor
9.2.2.11
Frequency Compensation Component Selection
9.2.3
Application Curves
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Documentation Support
10.1.1
Related Documentation
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PWP|24
MPDS372A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
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TPS7H502x-SP and TPS7H502x-SEP Radiation-Hardened 1MHz Current Mode PWM Controller With Integrated Gate Driver