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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS7H4002-SP

現行

抗輻射 QMLV、3-V 至 5.5-V 輸入、3-A 同步降壓轉換器

立即訂購
產品規格表

TPS7H4002-SP

現行
產品規格表 立即訂購

產品詳細資料

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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類型 標題 日期
* 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 2022年 1月 24日
* SMD TPS7H4002-SP SMD 5962-20210 2021年 9月 2日
* Radiation & reliability report TPS7H4002-SP Total Ionizing Dose (TID) (Rev. A) 2021年 8月 31日
* Radiation & reliability report TPS7H4002-SP Neutron Displacement Damage (NDD) Characterization 2021年 7月 28日
* Radiation & reliability report Single-Event Effects Test Report of the TPS7H4002-SP Sync Step-Down Converter 2021年 6月 10日
Application brief DLA Approved Optimizations for QML Products (Rev. B) PDF | HTML 2024年 10月 23日
Selection guide TI Space Products (Rev. J) 2024年 2月 12日
Application note Using Space Grade Power Components to Power Microchip RTAX-S/SL FPGA PDF | HTML 2023年 9月 29日
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) 2023年 8月 31日
Application note QML flow, its importance, and obtaining lot information (Rev. C) 2023年 8月 30日
Application note Space Grade Power Solution for Microsemi RTG4 PDF | HTML 2023年 5月 2日
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) PDF | HTML 2022年 11月 17日
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 2022年 10月 19日
Application brief Why Radiation Hardness Matters for Point-of-Load Converters PDF | HTML 2022年 1月 13日
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 2020年 8月 21日
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 2020年 5月 18日
E-book Radiation Handbook for Electronics (Rev. A) 2019年 5月 21日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS7H4002EVM-CVAL — 適用於 3-V、3-V 至 5.5-V 輸入、同步降壓轉換器的 TPS7H4002-SP 評估模組

TPS7H4002EVM-CVAL 展示抗輻射 TPS7H4002-SP 降壓轉換器如何提供可負載最高 3 A 電流的穩壓電源軌，以支援典型航太電源管理網路應用。

使用指南: PDF | HTML
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模擬型號

TPS7H4002-SP PSpice Model

SLVMDO0.ZIP (26 KB) - PSpice Model
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模擬型號

TPS7H4002-SP PSpice Transient Model

SLVMDO1.ZIP (42 KB) - PSpice Model
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計算工具

SLVRBH9 — TPS7H4002-SP Buck Converter Calculator

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產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
TPS7H4002-SP — 抗輻射 QMLV、3-V 至 5.5-V 輸入、3-A 同步降壓轉換器
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CFP (HKH) 20 Ultra Librarian
DIESALE (KGD) —
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