RH1959

量产

Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

概述

  • MIL-PRF-38535 Class V Compatible Dice*
  • Operates with Input as Low as 4V
  • Output Voltages Down to 1.21V
  • Constant 500kHz Switching Frequency
  • Synchronizable to 1MHz
  • Internal Slope Compensation
  • Cycle-by-Cycle Current Limiting
  • Integrated 4.5A Switch
  • Current Mode Control

Radiation Performance*

  • Total Ionizing Dose (TID) Tolerance, per TM1019.8, MIL-STD-883:
    • 100kRad (Si), per condition A at 50Rads(Si)/sec
    • 50kRad (Si), per condition D at 10mRads(Si)/sec
    • ELDRS Pass 50kRad(Si)
  • Displacement Damage Defect (DDD) up to 1E12 Neutrons/cm2
  • Single Event Performance up to an LET of at least 80 MeVcm2/mg

* Radiation and Qualification completed on the packaging vendor’s assembled unit.
RH1959
Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator
RH1959 Pin Configuration rh1959 FBL
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数据手册 2

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参考电路

ADPS20174-RD Power Tree
ADPS20174-RD Power Tree
ADPS20174-RD High Reliability Space Power Solution 参考设计

High Reliability Space Power Solution for AD9361S-CSH Agile RF Transceiver

查看参考设计详情

特性和优点

  • High-reliability, radiation hardened power solution qualified for traditional space applications.
  • Power solution optimized for lowest solution size and low noise performance.

Solution Specifications

High Reliability Space Solution Requirements:

  • Input Voltage: 12VDC
  • Output Voltage: VDDA_X = 1.3V, VDD_INTERFACE = 1.8V, VDD_GPO = 3.3V
  • Output Current: VDDA_X = 1.1A, VDD_INTERFACE = 20mA, VDD_GPO = 1mA
  • Space Qualification: MIL-PRF-38535 Class V
  • Noise: < 65 μVrms
  • Solution Size: < 2200mm2

Traditional space applications require radiation-hardened (RH) power parts; commercial and CSL parts are not suitable.

使用部分

设计和集成工具

视频

  • lazy blur
    VIDEO · 2021-01-11 17:51
    NSREC 2020: Commercial Space Products for Lower Cost Satellites
ADPS20174-RD High Reliability Space Power Solution
High Reliability Space Power Solution for AD9361S-CSH Agile RF Transceiver
ADPS20174-RD Power Tree

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