ISL8700

The ISL8700, ISL8701, ISL8702 family of ICs provide four delay adjustable sequenced outputs while monitoring an input voltage all with a minimum of external components.

High performance DSP, FPGA, μP and various subsystems require input power sequencing for proper functionality at initial power-up and the ISL870X provides this function while monitoring the distributed voltage for over and undervoltage compliance.

The ISL8700 and ISL8701 operate over the +2.5V to +24V nominal voltage range, whereas the ISL8702 operates over the 2.5V to +12V range. All three have a user adjustable time from UV and OV voltage compliance to sequencing start via an external capacitor when in auto start mode and adjustable time delay to subsequent ENABLE output signal via external resistors.

Additionally, the ISL8702 provides an input for sequencing on and off operation (SEQ_EN) and for voltage window compliance reporting (FAULT) over the +2.5V to +12V voltage range.

Easily daisy chained for more than 4 sequenced signals.

Altogether, the ISL870X provides these adjustable features with a minimum of external BOM. See Figure 1 for typical implementation.

ISL8700 特点

• Adjustable Delay to Subsequent Enable Signal
• Adjustable Delay to Sequence Auto Start
• Adjustable Distributed Voltage Monitoring
• Under and Overvoltage Adjustable Delay to Auto Start Sequence
• I/O Options
  • ENABLE (ISL8700, ISL8702) and ENABLE# (ISL8701) SEQ_EN (ISL8702)
• Voltage Compliance Fault Output
• Pb-Free (RoHS Compliant)

ISL8700 应用

• Power Supply Sequencing
• System Timing Function

ISL8700 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL8700IBZ	量产	工业级	14 Ld SOIC	2	1.11
ISL8700IBZ-T	量产	工业级	14 Ld SOIC T+R	2	1.11
ISL870XEVAL1	量产		评估板	N/A	价格录入中

ISL8700 应用技术支持与电子电路设计开发资源下载

1. ISL8700 数据资料 datatSheet 下载.PDF
2. Power 电源管理器件产品选型指南 . pdf