SLVK226 October   2025 TPS7H4012-SEP

 

  1.   1
  2.   TPS7H4012-SEP and TPS7H4013-SEP Single-Event Effects (SEE)
  3.   Trademarks
  4. 1 Introduction
  5. 2 Single-Event Effects (SEE)
  6. 3 Device and Test Board Information
  7. 4 Irradiation Facility and Setup
  8. 5 LETEFF and Range Calculation
  9. 6 Test Setup and Procedures
  10. 7 Destructive Single-Event Effects (DSEE)
    1. 7.1 Single-Event Latch-up (SEL) Results
    2. 7.2 Single-Event Burnout (SEB) and Single-Event Gate Rupture (SEGR) Results
  11. 8 Single-Event Transients (SET)
  12. 9 Event Rate Calculations
  13. 10Summary
  14.   A References

1 Introduction

The TPS7H401x-SEP is a 14V synchronous buck converter optimized for use in a space environment. The peak current mode converter obtains high efficiency with good transient performance and reduced component count. The TPS7H4012-SEP supports up to 6A output current while the TPS7H4013-SEP supports up to 3A output current.

The wide voltage range of the TPS7H401x-SEP enables the device to be used as a point of load regulator to convert directly from a 12V or 5V rail. The output voltage start-up ramp is controlled by the SS_TR pin. Power sequencing is possible with the EN and PWRGD pins.

Additionally, various features are included such as an optimized current limit for each device, a flexible switching frequency, and configurable compensation.

The device is offered in a 44-pin plastic package. General device information and test conditions are listed in Table 1-1. For more detailed technical specifications, user guides, and application notes, see TPS7H4012-SEP product page and TPS7H4013-SEP product page.

Table 1-1 Overview Information
Description (1)Device Information
TI Part NumberTPS7H4012-SEP, TPS7H4013-SEP
Orderable NumberTPS7H4012MDDWTSEP,

TPS7H4013MDDWTSEP

Device FunctionSynchronous Buck Converter
TechnologyLBC7 (Linear BiCMOS 7)
Exposure FacilityRadiation Effects Facility, Cyclotron Institute, Texas A&M University (15 MeV/nucleon)

and Facility for Rare Istotope Beams, K500 Cyclotron (KSEE), Michigan State University (19.5MeV/nucleon)

Heavy Ion Fluence per Run1.00 × 107 ions/cm2
Irradiation Temperature25°C (for SEB/SEGR testing), 25°C (for SET testing), and 125°C (for SEL testing)
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