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

TPS7H4003-SEP

ACTIVO

Convertidor reductor síncrono de 3 V a 7 V y 18 A, tolerancia a la radiación, en plástico mejorado c

Detalles del producto

Rating Space Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 18 Vin (min) (V) 3 Vin (max) (V) 7 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) 0.605 Vout (max) (V) 6.65 Iq (typ) (µA) 4000 Duty cycle (max) (%) 100
Rating Space Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 18 Vin (min) (V) 3 Vin (max) (V) 7 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) 0.605 Vout (max) (V) 6.65 Iq (typ) (µA) 4000 Duty cycle (max) (%) 100
HTSSOP (DDW) 44 113.4 mm² 14 x 8.1
  • Radiation performance:
    • SEL, SEB, and SEGR immune up to LET = 43 MeV-cm2/mg
    • SET and SEFI characterized up to LET = 43 MeV-cm2/mg
    • TID assured for every wafer lot up to 50 krad(Si)
  • Peak efficiency: 94% (VO = 1 V at 100 kHz)
  • Integrated 17-mΩ and 9-mΩ MOSFETs
  • Power rail: 3 V to 7 V on VIN
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100kHz to 1MHz
    • SYNC pins can be configured as 500-kHz clocks at 90° out of phase to parallel up to 4 devices
  • 0.6-V ±1.7% voltage reference over temperature, radiation, and line and load regulation
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • 44-pin PowerPAD™ HTSSOP package
  • Space Enhanced Plastic:
    • Controlled baseline
    • Au bondwire and NiPdAu lead finish
    • Enhanced mold compound for low outgassing
    • One fabrication, assembly, and test site
    • Extended product life cycle
    • Extended product change notification
    • Product traceability
  • Radiation performance:
    • SEL, SEB, and SEGR immune up to LET = 43 MeV-cm2/mg
    • SET and SEFI characterized up to LET = 43 MeV-cm2/mg
    • TID assured for every wafer lot up to 50 krad(Si)
  • Peak efficiency: 94% (VO = 1 V at 100 kHz)
  • Integrated 17-mΩ and 9-mΩ MOSFETs
  • Power rail: 3 V to 7 V on VIN
  • Flexible switching frequency options:
    • 100-kHz to 1-MHz adjustable internal oscillator
    • External sync capability: 100kHz to 1MHz
    • SYNC pins can be configured as 500-kHz clocks at 90° out of phase to parallel up to 4 devices
  • 0.6-V ±1.7% voltage reference over temperature, radiation, and line and load regulation
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • 44-pin PowerPAD™ HTSSOP package
  • Space Enhanced Plastic:
    • Controlled baseline
    • Au bondwire and NiPdAu lead finish
    • Enhanced mold compound for low outgassing
    • One fabrication, assembly, and test site
    • Extended product life cycle
    • Extended product change notification
    • Product traceability

The TPS7H4003-SEP is a radiation-tolerant, 7-V, 18-A synchronous buck converter with integrated low-resistance high-side and low-side MOSFETs in a thermally enhanced 34-pin ceramic flatpack package. High efficiency and reduced component count are achieved through current mode control.

The output voltage start-up 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 possible by correctly configuring the enable and the power good pins. The TPS7H4003-SEP can be configured in primary-secondary mode and with the SYNC2 pin, four devices can be configured in parallel without an external clock.

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 protection which prevents current runaway. There is also a low-side sinking current protection which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal limit.

The TPS7H4003-SEP is a radiation-tolerant, 7-V, 18-A synchronous buck converter with integrated low-resistance high-side and low-side MOSFETs in a thermally enhanced 34-pin ceramic flatpack package. High efficiency and reduced component count are achieved through current mode control.

The output voltage start-up 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 possible by correctly configuring the enable and the power good pins. The TPS7H4003-SEP can be configured in primary-secondary mode and with the SYNC2 pin, four devices can be configured in parallel without an external clock.

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 protection which prevents current runaway. There is also a low-side sinking current protection 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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Tipo Título Fecha
* Data sheet TPS7H4003-SEP Radiation-Tolerant 3-V to 7-V Input 18-A Synchronous Buck Converter in Space Enhanced Plastic datasheet PDF | HTML 12 ene 2022
* Radiation & reliability report TPS7H4003-SEP Synchronous Step-Down Converter Single-Event Effect (SEE) (Rev. A) PDF | HTML 26 may 2023
* VID TPS7H4003-SEP VID V62-21609 07 abr 2022
* Radiation & reliability report TPS7H4003-SEP Neutron Displacement Damage (NDD) 11 feb 2022
* Radiation & reliability report TPS7H4003-SEP Total Ionizing Dose (TID) 09 feb 2022
* Radiation & reliability report TPS7H4003-SEP Production Flow and Reliability Report PDF | HTML 08 feb 2022
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 abr 2024
Selection guide TI Space Products (Rev. J) 12 feb 2024
EVM User's guide TPS7H4003EVM User's Guide (Rev. B) PDF | HTML 07 feb 2024
Technical article How Space Enhanced Products Address Challenges in low Earth orbit Applications (Rev. A) PDF | HTML 18 dic 2023
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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

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

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Guía del usuario: PDF | HTML
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Placa de evaluación

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Modelo de simulación

TPS7H4003-SEP PSpice Model

SLVMDR6.ZIP (32 KB) - PSpice Model
Modelo de simulación

TPS7H4003-SEP PSpice Transient Model

SLVMDR7.ZIP (34 KB) - PSpice Model
Herramienta de cálculo

SLVRBJ0 TPS7H4003-SEP Buck Converter Calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
TPS7H4003-SEP Convertidor reductor síncrono de 3 V a 7 V y 18 A, tolerancia a la radiación, en plástico mejorado c
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Design guide: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (DDW) 44 Ultra Librarian

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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