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TPS7H4104-SEP

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Strahlungstoleranter synchroner Vierkanal-Abwärtswandler, 3 V bis 7 V Eingang, 3 A pro Kanal

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TPS7H4104-SEP

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Produktdetails

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 4 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 4 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 mm × 12 mm)
  • 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 (See TPS7H4104 SEE and TPS7H4102 SEE radiation report for test conditions and full information)
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg (See TPS7H4104 SEE and TPS7H4102 SEE radiation report for test conditions and full information)
  • 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% (typical) at VIN = 5V, VOUT = 1.8V, IOUT = 1A at fSW = 500kHz
  • Integrated 62mΩ (HS) and 55mΩ (LS) MOSFETs (typical 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 (See TPS7H4104 SEE and TPS7H4102 SEE radiation report for test conditions and full information)
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg (See TPS7H4104 SEE and TPS7H4102 SEE radiation report for test conditions and full information)
  • 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% (typical) at VIN = 5V, VOUT = 1.8V, IOUT = 1A at fSW = 500kHz
  • Integrated 62mΩ (HS) and 55mΩ (LS) MOSFETs (typical 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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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TPS7H410x-SP and TPS7H410x-SEP Radiation-Hardened, 3V to 7V Input, 3A per Channel, Multichannel, Synchronous PDF | HTML 16.09.2026
* Strahlungs- und Zuverlässigkeitsbericht TPS7H4104-SEP Total Ionizing Dose (TID) Report (Rev. B) 19.11.2025
* Strahlungs- und Zuverlässigkeitsbericht TPS7H410x-SEP Production Flow and Reliability Report (Rev. A) PDF | HTML 14.11.2025
* Strahlungs- und Zuverlässigkeitsbericht Single-Event Effects (SEE) Radiation Report of the TPS7H4104-SEP PDF | HTML 05.11.2025
* Strahlungs- und Zuverlässigkeitsbericht TPS7H4104-SEP and TPS7H4104-SP QMLP Neutron Displacement Damage (NDD) Characterization Report (Rev. A) 17.09.2025
* VID TPS7H4104-SEP VID TPS7H4104-SEP VID V62/25661 07.07.2026
Auswahlhilfe TI Space Products (Rev. L) 27.03.2026
Anwendungshinweis Achieving High Accuracy Output Below VREF with Space-Grade Multi-channel Buck Converters PDF | HTML 17.12.2025
Technischer Artikel How Space Enhanced Products Address Challenges in low Earth orbit Applications (Rev. A) PDF | HTML 18.12.2023
Anwendungshinweis Reduce the Risk in Low-Earth Orbit Missions with Space Enhanced Plastic Products (Rev. A) PDF | HTML 15.09.2022
E-book Radiation Handbook for Electronics (Rev. A) 21.05.2019

Design und Entwicklung

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Evaluierungsplatine

TPS7H4104EVM — TPS7H4104 – Evaluierungsmodul

Das Evaluierungsmodul (EVM) TPS7H4104 ist für 5 V Eingangsspannung mit vier separaten 3-A-Ausgängen optimiert. Jeder Wandler ist separat konfiguriert, sodass die Platine über einen 0,8-V-Ausgang, einen 1,2-V-Ausgang, einen 1,5-V-Ausgang und einen 1,8-V-Ausgang verfügt.

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