概览

简介

The IS-1825ASRH, IS-1825BSRH, IS-1825BSEH, ISL71823ASRH, and ISL71823BSRH are single event and total dose hardened pulse width modulators designed to be used in high-frequency switching power supplies in either voltage or current-mode configurations. These devices include a precision voltage reference, a low power start-up circuit, a high-frequency oscillator, a wide-band error amplifier, and a fast current-limit comparator. The IS-1825xSRH and IS-1825xSEH feature dual, alternating output operating from zero to less than 50% duty cycle, and the ISL71823xSRH features dual in-phase output operating from zero to less than 100% duty cycle. The B versions of the parts test the delay from clock out to PWM output switching after power has been applied to the modulator (tPWM). The SEH parts are wafer-by-wafer acceptance tested to 50krad(Si) at a low dose rate of <10mrad(Si)/s. Constructed with the Rad Hard Silicon Gate (RSG) dielectrically isolated BiCMOS process, these devices are immune to single-event latch-up and have been specifically designed to provide a high level of immunity to single-event transients. All specified parameters are established and tested for 300krad(Si) total dose performance. The devices are offered in a 16 Ld CDIP or a 20 Ld CDFP and fully specified to across the temperature range of -50 °C to +125 °C.

特性

  • Electrically screened to DLA SMD# 5962-02511
  • QML qualified per MIL-PRF-38535 requirements
  • EH version is wafer-by-wafer acceptance tested to 50krad(Si) LDR
  • Oscillator frequency: 1MHz (max)
  • High output drive current: 1A peak (typ)
  • Low startup current: 300μA (max)
  • Undervoltage Lockout
  • Start threshold: 8.8V (max)
  • Stop threshold: 7.6V (min)
  • Hysteresis: 300mV (min)
  • Pulse-by-pulse current limiting
  • Programmable leading edge blanking
  • Radiation Hardness
  • High Dose Rate (HDR) (50-300rad(Si)/s): 300krad(Si)
  • Low Lose Rate (LDR) (0.01rad(Si)/s): 50krad(Si)
  • Latch-up immune (dielectrically isolated)
  • SEU immune: LET= 35MeV•cm2/mg

应用

应用

  • Voltage or current-mode switching power supplies
  • Control of high current MOSFET drivers
  • Motor speed and direction control

文档

类型
日期
PDF 630 KB 数据手册
PDF 467 KB 手册
PDF 4.85 MB 手册
PDF 626 KB 报告
PDF 414 KB 应用文档
PDF 175 KB 应用文档
PDF 360 KB Price Increase Notice
其他
PDF 666 KB 报告
PDF 3.96 MB 报告
PDF 533 KB 白皮书
PDF 499 KB Product Advisory
PDF 230 KB 产品变更通告
PDF 338 KB 应用文档
14 items

设计和开发

软件与工具

软件与工具

Software title
Software type
公司
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.
Simulator 瑞萨电子
1 item

模型

模型

类型 日期
SXSCH 254 KB 模型 - iSim
1 item