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TPS7H4102-SEP

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Radiation-tolerant, 3V to 7V input dual channel 3A per channel synchronous step-down converter

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TPS7H4102-SEP

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Detalles del producto

Rating Space Topology Buck Iout (max) (A) 3 Vin (max) (V) 7 Vin (min) (V) 3 Vout (max) (V) 6.65 Vout (min) (V) 0.5 Features 2 outputs, Current Sharing, Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Sequencing and monitoring, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -55 to 125 Iq (typ) (A) 0.01 Duty cycle (max) (%) 100
Rating Space Topology Buck Iout (max) (A) 3 Vin (max) (V) 7 Vin (min) (V) 3 Vout (max) (V) 6.65 Vout (min) (V) 0.5 Features 2 outputs, Current Sharing, Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Sequencing and monitoring, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -55 to 125 Iq (typ) (A) 0.01 Duty cycle (max) (%) 100
HTQFP (PAP) 64 144 mm² 12 x 12
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability up to 100krad(Si)
  • Single-event effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg*
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg*
  • Input voltage range from 3V to 7V
  • Up to 3A of maximum output current per channel or more when channels are paralleled
  • Typical efficiency of 91.1% (typ.) at VIN = 5V, VOUT = 1.8V, IOUT = 1A at fSW = 500kHz
  • Integrated 62mΩ (HS) and 55mΩ (LS) MOSFETs (typ. at VIN = 5V)
  • Flexible switching frequency:
    • 100kHz to 1MHz, internal oscillator
    • External synchronization capability
  • Accurate voltage reference of 599.48mV ± 1% over line, temperature, and TID
  • Monotonic start-up into pre-biased outputs
  • Per channel (CHx)
    • Adjustable slope compensation (RSCx)
    • Adjustable soft-start (SS_TRx)
    • Power-good output monitor for undervoltage and overvoltage (PWRGDx)
    • Input enable (ENx)
  • Sequence up and reverse sequence down when using EN_SEQ (only valid for TPS7H4104)
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temp range
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability up to 100krad(Si)
  • Single-event effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg*
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg*
  • Input voltage range from 3V to 7V
  • Up to 3A of maximum output current per channel or more when channels are paralleled
  • Typical efficiency of 91.1% (typ.) at VIN = 5V, VOUT = 1.8V, IOUT = 1A at fSW = 500kHz
  • Integrated 62mΩ (HS) and 55mΩ (LS) MOSFETs (typ. at VIN = 5V)
  • Flexible switching frequency:
    • 100kHz to 1MHz, internal oscillator
    • External synchronization capability
  • Accurate voltage reference of 599.48mV ± 1% over line, temperature, and TID
  • Monotonic start-up into pre-biased outputs
  • Per channel (CHx)
    • Adjustable slope compensation (RSCx)
    • Adjustable soft-start (SS_TRx)
    • Power-good output monitor for undervoltage and overvoltage (PWRGDx)
    • Input enable (ENx)
  • Sequence up and reverse sequence down when using EN_SEQ (only valid for TPS7H4104)
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temp range

The TPS7H4104 and TPS7H4102 are 7V, 3A per channel, multichannel, peak-current mode, synchronous buck converters optimized for use in area sensitive, space environment applications. The device incorporates four (TPS7H4104) or two (TPS7H4102) identical channels that can be use to step down the power input voltage into independent voltages up to 3A per phase or interleaved to increment the output current up to 12A (TPS7H4104) or 6A (TPS7H4102).

Each channel incorporates the high-side and low-side power MOSFETs with programmable soft-start and slope compensation. Additionally, per channel power-good flags and enable signals are provided. The TPS7H4104 also includes an EN_SEQ input that enables a sequential power‑up and a reverse‑sequence power‑down.

Various current limit mechanisms are included for robust current limiting during fault conditions. Thermal shutdown disables the device when the die temperature exceeds thermal limit.

The TPS7H4104 and TPS7H4102 are 7V, 3A per channel, multichannel, peak-current mode, synchronous buck converters optimized for use in area sensitive, space environment applications. The device incorporates four (TPS7H4104) or two (TPS7H4102) identical channels that can be use to step down the power input voltage into independent voltages up to 3A per phase or interleaved to increment the output current up to 12A (TPS7H4104) or 6A (TPS7H4102).

Each channel incorporates the high-side and low-side power MOSFETs with programmable soft-start and slope compensation. Additionally, per channel power-good flags and enable signals are provided. The TPS7H4104 also includes an EN_SEQ input that enables a sequential power‑up and a reverse‑sequence power‑down.

Various current limit mechanisms are included for robust current limiting during fault conditions. Thermal shutdown disables the device when the die temperature exceeds thermal limit.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet TPS7H410x-SP and TPS7H410x-SEP Radiation-Hardened, 3V to 7V Input, 3A per Channel, Multichannel, Synchronous Buck Converter datasheet (Rev. C) PDF | HTML 19 nov 2025
* Radiation & reliability report TPS7H410x-SEP Production Flow and Reliability Report (Rev. A) PDF | HTML 14 nov 2025
* Radiation & reliability report Single-Event Effects (SEE) Radiation Report of the TPS7H4102-SEP PDF | HTML 07 nov 2025
* Radiation & reliability report TPS7H4102-SEP Total Ionizing Dose (TID) Report (Rev. A) 03 nov 2025
* Radiation & reliability report TPS7H4102-SEP and TPS7H4102-SP QMLP Neutron Displacement Damage (NDD) Characterization Report (Rev. A) 24 sep 2025
Application note Achieving High Accuracy Output Below VREF with Space-Grade Multi-channel Buck Converters PDF | HTML 17 dic 2025
Selection guide TI Space Products (Rev. K) 04 abr 2025
Technical article How Space Enhanced Products Address Challenges in low Earth orbit Applications (Rev. A) PDF | HTML 18 dic 2023
Application note Reduce the Risk in Low-Earth Orbit Missions with Space Enhanced Plastic Products (Rev. A) PDF | HTML 15 sep 2022
E-book Radiation Handbook for Electronics (Rev. A) 21 may 2019

Diseño y desarrollo

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Placa de evaluación

TPS7H4102EVM — Módulo de evaluación TPS7H4102

El módulo de evaluación (EVM) TPS7H4102EVM muestra cómo funciona un convertidor buck de doble canal TPS7H4102-SEP (encapsulado de plástico) con salidas independientes. La placa está optimizada para una entrada de 5 V con dos salidas de 3 A configurables individualmente, establecidas en 0.8 V y 1.8 (...)
Guía del usuario: PDF | HTML
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Herramienta de cálculo

TPS7H410X-CALC — TPS7H4104/2 component calculator

TPS7H4104 and TPS7H4102 component calculator
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HTQFP (PAP) 64 Ultra Librarian
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