Rad Hard Single/Dual Phase Current Mode PWM Controller Evaluation Board
The ISL73847SEHEV2Z evaluation board benchmarks the performance of the ISL73847SEH dual-phase buck controller. The evaluation board is optimized for a 4.5V to 15V input...
Radiation Hardened Single/Dual Phase Current Mode PWM Controller
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概览
简介
The ISL73847SEH is a synchronous buck controller that can operate as a single or dual-phase controller. It is intended to work with the ISL73041SEH (half-bridge GaN FET driver) to generate Point-of-Load voltage rails for commercial space applications.
It accepts an input voltage range of 4.5V to 19V with a programmable output switching frequency between 250kHz and 1.5MHz with a single resistor. The output can regulate a voltage upwards of 600mV and is limited on the top end by the minimum of time and selected switching frequency.
The wide input voltage range makes it a suitable power supply option for a high-current FPGA core and other general-purpose power solutions. The ISL73847SEH uses current mode modulation which simplifies loop compensation and provides excellent power supply rejection. Additionally, the output is remotely sensed to compensate for any voltage drop in the load conditions. All of this put together results in a robust power supply solution that requires minimal components while achieving high current density.
The ISL73847SEH also features a tri-level output which provides excellent protection against faults by driving a mid-scale voltage to signal the power stage to enter a Hi-Z condition.
The ISL73847SEH operates across the military temperature range from -55 °C to +125 °C and is available in a 24 Ld hermetically sealed Ceramic Dual Flatpack (CDFP) package or in die form.
特性
- Wide operating voltage range:
- Input: 4.5V to 19V
- Output: 0.6V to VPWR_STAGE×((TSW-120ns)/TSW)
- Programmable output switching frequency
- 250kHz to 1.5MHz
- Optional droop regulation
- Current mode control provides
- Excellent power supply rejection
- Simplified control scheme
- Output differential remote sensing
- Programmable soft-start
- Enable control
- Power-good Indicator
- Radiation acceptance testing
- LDR (0.01rad(Si)/s): 75krad(Si)
- SEE hardness (see SEE report for details)
- No SEB/SEL LETTH, VDD = 25V: 86MeV•cm2/mg
- SET/SEFI free at LET 86MeV•cm2/mg
- Qualified to Renesas Rad Hard QML-V Equivalent Screening and QCI flow (R34TB0001EU)
- All screening and QCI is in accordance with MIL-PRF- 38535L Class-V
应用
应用
- FPGA core power supply
- General purpose power supply
文档
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日期 | |
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| PDF 3.32 MB | 数据手册 | |
| PDF 430 KB | 应用文档 | |
| PDF 994 KB | 报告 | |
| PDF 4.85 MB | 手册 | |
| PDF 414 KB | 应用文档 | |
| PDF 336 KB | 技术摘要 | |
| PDF 840 KB | 报告 | |
| PDF 533 KB | 白皮书 | |
8 items
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设计和开发
软件与工具
软件与工具
| Software title
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Software type
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公司
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|---|---|---|
| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | 瑞萨电子 |
1 item
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开发板与套件
开发板与套件
Radiation Hardened Compact 12V to 1V, 50A Capable Power Supply
The ISL73847SEHDEMO2Z demonstration board demonstrates the performance of the ISL73847SEH dual-phase buck controller. The board is optimized for a 4.5V to 15V input...
Power Management Reference Design for AMD Versal XQRVC1902
The ISLVERSALDEMO2Z demo board provides the power management for the AMD Xilinx Space Grade Versal ACAP AI Core VC1902 using Renesas' Radiation Hardened Power...
Radiation Hardened Compact 12V to 1V, 25A Capable Power Supply
The ISL73847SEHDEMO5Z demonstration board demonstrates the performance of the ISL73847SEH dual-phase buck controller in single-phase mode. The board is optimized for a...
模型
ECAD 模块
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Processing table
| CFP | Tray | 获取样片, | ||
| CFP | Tray | |||
| DIE | ||||
| Die Waffle Pack |
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