Radiation Hardened Quad Power Supply Sequencer
Overview
Description
The ISL70321SEH and ISL73321SEH are radiation hardened and SEE mitigated power supply sequencers designed to drive Point-of-Load (POL) regulators with enable pins. Up to four power supplies can be fully sequenced by a single device or multiple devices can be easily cascaded to sequence an unlimited number of power supplies for dense RF applications. This power supply sequencer requires only two feedback resistors per power supply and a single resistor to set the rising and falling delay. The device features precision input comparators with an input threshold voltage of 600mV ±1.5% for the highest possible accuracy when monitoring the power supply voltages. The ISL70321SEH and ISL73321SEH are offered in an 18 Ld 10mm x 12mm CDFP package or die form and are fully specified across the military ambient temperature range of -55 °C to +125 °C. With minimal external component count, precision voltage monitoring, and SET mitigation, the ISL70321SEH and ISL73321SEH are the ideal choice to control many of today’s highly dense power systems in high-reliability applications.
ISL70321SEH_ISL73321SEH Functional Diagram
Features
- Wide operating voltage range, 3V to 13.2V
- Single resistor sets the rising and falling delay
- Power-off POLs in reverse order or simultaneously
- Precision voltage monitoring
- 600mV ±1.5% threshold voltage over temperature and radiation
- Full military temperature range operation
- TA = -55 °C to +125 °C
- TJ = -55 °C to +150 °C
- Radiation hardness
- High dose rate (HDR) (50-300rad(Si)/s): 100krad(Si) - ISL70321SEH only
- Low dose rate (LDR) (0.01rad(Si)/s): 75krad(Si) ISL70321SEH and ISL73321SEH
- SEE hardness (Review SEE report for details)
- No SEB/SEL LETTH, VDD = 14.7V: 86MeV•cm2/mg
- SET, SEFI free at LET 20MeV•cm2/mg
- Electrically screened to DLA SMD 5962-17225
Documentation
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PDF1.12 MB
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Datasheet
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PDF338 KB
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Application Note
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PDF3.16 MB
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Brochure
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PDF364 KB
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Brochure
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PDF687 KB
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Manual - Development Tools
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PDF910 KB
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Manual - Development Tools
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0 KB
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Other
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PDF846 KB
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Product Change Notice
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PDF456 KB
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Report
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PDF477 KB
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Report
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PDF339 KB
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Report
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PDF799 KB
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White Paper
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PDF547 KB
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White Paper
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PDF533 KB
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White Paper
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Design & Development
Software & Tools
Software & Tool Pages
| Title | Type | Company |
|---|---|---|
| iSim:PE Offline Simulation TooliSim 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.Downloads: | Simulator | Renesas |
Boards & Kits
Boards & Kits
Radiation Hardened Quad Power Supply Sequencer Demonstration Board
Featured Documents:
Radiation Hardened Quad Power Supply Sequencer Evaluation Board
Featured Documents:
Radiation Hardened Quad Power Supply Sequencer Evaluation Board
Featured Documents:
Renesas Radiation Hardened Power Solution for RTG4 FPGA
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Renesas Rad Hard Power Management Reference Design for Xilinx's Space Grade XQRKU060
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
