Overview: DATASHEET IS-1845ASRH, IS-1845ASEH
Single Event Radiation Hardened High Speed, Current Mode PWM FN9001 Rev.7.01 Feb 16, 2022 The IS-1845ASRH, IS-1845ASEH are designed to be used in switching power supplies operating in current-mode. Every other rising edge of the on-chip oscillator turns on the output. Turn-off is controlled by the current sense parator and occurs when the sensed current reaches a peak controlled by the error amplifier. Turn-off can also be triggered by the end of the oscillator period. These devices feature a single output operating from zero to less than 50% duty cycle.
Constructed with Renesas 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 ensured and tested for 300krad(Si) total dose performance at a high dose rate and 50krad(Si) total dose at a low dose rate.
Detailed Electrical Specifications for these devices are contained in the SMD 5962-01509.
