ZHCSI22E October 2017 – August 2019 TPS2662
The TPS2662x is a family of high voltage industrial eFuses with integrated back-to-back MOSFETs and enhanced built-in protection circuitry. It provides robust protection for all systems and applications powered from 4.5 V to 60 V. The device can withstand ±60 V positive and negative supply voltages without damage. The device feature fully integrated reverse polarity protection and require zero additional power components. For hot-pluggable boards, the device provides hot-swap power management with in-rush current control. Load, source and device protections are provided with many programmable features including overcurrent, overvoltage, undervoltage. The precision overcurrent limit (±5% at 880 mA) helps to minimize over design of the input power supply, while the fast response short circuit protection 220 ns (typical) immediately isolates the faulty load from the input supply when a short circuit is detected.
The internal robust protection control blocks of the TPS2662x along with its ±60 V rating helps to simplify the system designs for the surge compliance ensuring complete protection of the load and the device. TPS2662x devices are immune to noise tests like Electrical Fast Transients that are common in industrial applications and simplifies the system design that require criterion-A performance during this test.
The device provides precise monitoring of voltage bus for brown-out and overvoltage conditions and asserts fault signal for the downstream system. The TPS2662x monitor functions threshold accuracy of ±3% ensures tight supervision of the supply bus, eliminating the need for a separate supply voltage supervisor chip.
The device monitors V(IN) and V(OUT) to provide true reverse current blocking when a reverse condition or input power failure condition is detected.