Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)

TPS7H4002-SP

ACTIVO

Convertidor reductor síncrono QMLV reforzado contra la radiación, entrada de 3 V a 5.5 V, 3 A

Detalles del producto

Rating Space Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.804 Vout (max) (V) 5.3 Iq (typ) (µA) 2500 Duty cycle (max) (%) 100
Rating Space Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.804 Vout (max) (V) 5.3 Iq (typ) (µA) 2500 Duty cycle (max) (%) 100
CFP (HKH) 20 93.726 mm² 12.7 x 7.38 DIESALE (KGD) See data sheet
  • Radiation performance:
    • Radiation-hardness-assured up to TID 100 krad(Si)
    • SEL, SEB, and SEGR immune to LET = 75 MeV-cm2/mg
    • SET and SEFI characterized up to LET = 75 MeV-cm2/mg
  • Peak efficiency: 96.9% (VO = 2.5 V)
  • Integrated 50-mΩ and 35-mΩ MOSFETs
  • Power rail: 3 to 5.5 V on VIN
  • 3-A maximum output current
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100 kHz to 1 MHz
    • SYNC pin can be configured as a 500-kHz output for primary-secondary applications
  • 0.807-V ±1.5% voltage reference over temperature, radiation, and line and load regulation
  • Monotonic start-up into prebiased outputs
  • Adjustable soft start through external capacitor
  • Input enable and power-good output for power sequencing
  • Power good output monitor for undervoltage and overvoltage
  • Adjustable input undervoltage lockout (UVLO)
  • 20-pin ultra-small, thermally-enhanced ceramic flatpack package (HKH) for space applications
  • Radiation performance:
    • Radiation-hardness-assured up to TID 100 krad(Si)
    • SEL, SEB, and SEGR immune to LET = 75 MeV-cm2/mg
    • SET and SEFI characterized up to LET = 75 MeV-cm2/mg
  • Peak efficiency: 96.9% (VO = 2.5 V)
  • Integrated 50-mΩ and 35-mΩ MOSFETs
  • Power rail: 3 to 5.5 V on VIN
  • 3-A maximum output current
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100 kHz to 1 MHz
    • SYNC pin can be configured as a 500-kHz output for primary-secondary applications
  • 0.807-V ±1.5% voltage reference over temperature, radiation, and line and load regulation
  • Monotonic start-up into prebiased outputs
  • Adjustable soft start through external capacitor
  • Input enable and power-good output for power sequencing
  • Power good output monitor for undervoltage and overvoltage
  • Adjustable input undervoltage lockout (UVLO)
  • 20-pin ultra-small, thermally-enhanced ceramic flatpack package (HKH) for space applications

The TPS7H4002-SP is a radiation hardened, 5.5-V, 3-A synchronous step-down converter, which is optimized for small designs through high efficiency and by integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, which reduces the inductor footprint.

The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. In addition, the TPS7H4002-SP can be configured in primary-secondary mode for parallel operation.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal limit.

The TPS7H4002-SP is a radiation hardened, 5.5-V, 3-A synchronous step-down converter, which is optimized for small designs through high efficiency and by integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, which reduces the inductor footprint.

The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. In addition, the TPS7H4002-SP can be configured in primary-secondary mode for parallel operation.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal limit.

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Documentación técnica

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* Data sheet TPS7H4002-SP Radiation-Hardness-Assured 3-V to 5.5-V Input, 3-A Synchronous Step Down Converter datasheet (Rev. B) PDF | HTML 24 ene 2022
* SMD TPS7H4002-SP SMD 5962-20210 02 sep 2021
* Radiation & reliability report TPS7H4002-SP Total Ionizing Dose (TID) (Rev. A) 31 ago 2021
* Radiation & reliability report TPS7H4002-SP Neutron Displacement Damage (NDD) Characterization 28 jul 2021
* Radiation & reliability report Single-Event Effects Test Report of the TPS7H4002-SP Sync Step-Down Converter 10 jun 2021
Application brief DLA Approved Optimizations for QML Products (Rev. B) PDF | HTML 23 oct 2024
Selection guide TI Space Products (Rev. J) 12 feb 2024
Application note Using Space Grade Power Components to Power Microchip RTAX-S/SL FPGA PDF | HTML 29 sep 2023
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) 31 ago 2023
Application note QML flow, its importance, and obtaining lot information (Rev. C) 30 ago 2023
Application note Space Grade Power Solution for Microsemi RTG4 PDF | HTML 02 may 2023
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) PDF | HTML 17 nov 2022
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 19 oct 2022
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML 13 ene 2022
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 21 ago 2020
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 18 may 2020
E-book Radiation Handbook for Electronics (Rev. A) 21 may 2019

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS7H4002EVM-CVAL — Módulo de evaluación TPS7H4002-SP para convertidor reductor síncrono de 3 A y con entrada de 3 V a 5

El TPS7H4002EVM-CVAL demuestra cómo el convertidor reductor TPS7H4002-SP endurecido por radiación proporciona un riel de alimentación regulado capaz de cargar una corriente de hasta 3 A para admitir aplicaciones típicas de administración de energía de grado espacial.

Guía del usuario: PDF | HTML
Modelo de simulación

TPS7H4002-SP PSpice Model

SLVMDO0.ZIP (26 KB) - PSpice Model
Modelo de simulación

TPS7H4002-SP PSpice Transient Model

SLVMDO1.ZIP (42 KB) - PSpice Model
Herramienta de cálculo

SLVRBH9 TPS7H4002-SP Buck Converter Calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS7H4002-SP Convertidor reductor síncrono QMLV reforzado contra la radiación, entrada de 3 V a 5.5 V, 3 A
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
CFP (HKH) 20 Ultra Librarian
DIESALE (KGD)

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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