ISL736AEH Datasheet | Intersil

ISL705x RH, ISL705x EH, ISL706x RH, ISL706x EH, ISL735x EH, ISL736x EH Radiation Hardened, 5.0V/3.3V µ-Processor Supervisory Circuits The devices in this family (ISL705AEH, ISL705BEH, ISL705CEH, ISL705ARH, ISL705BRH, ISL705CRH, ISL706AEH, ISL706BEH, ISL706CEH, ISL706ARH, ISL706BRH, ISL706CRH, ISL735AEH, ISL735BEH, ISL735CEH, ISL736AEH, ISL736BEH, ISL736CEH) are radiation hardened 5.0V/3.3V supervisory circuits that reduce the plexity required to monitor supply voltages in microprocessor systems. These devices significantly improve accuracy and reliability relative to discrete solutions. Each IC provides four key functions. - A reset output during power-up, power-down, and brownout conditions. - An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s. - A precision threshold detector for monitoring a power supply other than VDD. - An active-low, manual-reset input. Applications - Supervisor for µ-processors, µ-controllers, FPGAs, and DSPs - Critical power supply monitoring - Reliable replacement of discrete solutions 5V Power Supply 165k  49.9k 1 MR 2 VDD 3 GND 4 PFI WDO 8 RST 7 WDI 6 PFO 5 µP I/O ISL7X5Ax H 5V Supervisor Application with Overvoltage Protection Figure 1. Typical Application FN7662 Rev.6.04 Jun 21, 2024 VPFI (V) Features - Electrically screened to SMD 5962-11213 - QML qualified per MIL-PRF-38535 requirements - Precision supply voltage monitor - 4.65V threshold in the ISL7x5Ax H/Bx H/Cx H - 3.08V threshold in the ISL7x6Ax H/Bx H/Cx H - 200ms (typ) reset pulse width - Active high, active low, and open-drain options - Independent watchdog timer with 1.6s (typ)...