SLVSF07E
july 2021 – august 2023
TPS7H5001-SP
,
TPS7H5002-SP
,
TPS7H5003-SP
,
TPS7H5004-SP
PRODMIX
1
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Device Options
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics: All Devices
8.6
Electrical Characteristics: TPS7H5001-SP
8.7
Electrical Characteristics: TPS7H5002-SP
8.8
Electrical Characteristics: TPS7H5003-SP
8.9
Electrical Characteristics: TPS7H5004-SP
8.10
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
VIN and VLDO
9.3.2
Start-Up
9.3.3
Enable and Undervoltage Lockout (UVLO)
9.3.4
Voltage Reference
9.3.5
Error Amplifier
9.3.6
Output Voltage Programming
9.3.7
Soft Start (SS)
9.3.8
Switching Frequency and External Synchronization
9.3.8.1
Internal Oscillator Mode
9.3.8.2
External Synchronization Mode
9.3.8.3
Primary-Secondary Mode
9.3.9
Primary Switching Outputs (OUTA/OUTB)
9.3.10
Synchronous Rectifier Outputs (SRA and SRB)
9.3.11
Dead Time and Leading Edge Blank Time Programmability (PS, SP, and LEB)
9.3.12
Pulse Skipping
9.3.13
Duty Cycle Programmability
9.3.14
Current Sense and PWM Generation (CS_ILIM)
9.3.15
Hiccup Mode Operation (HICC)
9.3.16
External Fault Protection (FAULT)
9.3.17
Slope Compensation (RSC)
9.3.18
Frequency Compensation
9.3.19
Thermal Shutdown
9.4
Device Functional Modes
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Switching Frequency
10.2.2.2
Output Voltage Programming Resistors
10.2.2.3
Dead Time
10.2.2.4
Leading Edge Blank Time
10.2.2.5
Soft-Start Capacitor
10.2.2.6
Transformer
10.2.2.7
Main Switching FETs
10.2.2.8
Synchronous Rectificier FETs
10.2.2.9
RCD Clamp
10.2.2.10
Output Inductor
10.2.2.11
Output Capacitance and Filter
10.2.2.12
Sense Resistor
10.2.2.13
Hiccup Capacitor
10.2.2.14
Frequency Compensation Components
10.2.2.15
Slope Compensation Resistor
10.2.3
Application Curves
10.3
Power Supply Recommendations
10.4
Layout
10.4.1
Layout Guidelines
10.4.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
1
Features
Radiation performance:
Radiation hardness assured (RHA) up to
TID 100 krad(Si)
SEL, SEB, and SEGR immune to
LET = 75 MeV-cm
2
/mg
SET and SEFI characterized up to
LET = 75 MeV-cm
2
/mg
No cross-conduction events for controller outputs observed during SET characterization
Input voltage: 4 V to 14 V
0.613-V +0.7%/–1% voltage reference over temperature, radiation, and line and load regulation
Switching frequency from 100 kHz to 2 MHz
External clock synchronization capability
Synchronous rectification outputs
TPS7H5001-SP, TPS7H5002-SP,
TPS7H5003-SP
Adjustable dead time
TPS7H5001-SP, TPS7H5002-SP
Adjustable leading edge blank time
TPS7H5001-SP, TPS7H5002-SP,
TPS7H5004-SP
Configurable duty cycle limit
TPS7H5001-SP, TPS7H5002-SP,
TPS7H5003-SP
Adjustable slope compensation and soft start
Package options include CFP (all devices) and TSSOP (TPS7H5001-SP)