DATASHEET
HS-1825ARH, HS-1825AEH FN4561
Rev 10.00
August 5, 2016 Radiation Hardened High-Speed, Dual Output PWM
The radiation hardened HS-1825ARH, HS-1825AEH pulse
width modulator is designed to be used in high frequency
switched-mode power supplies and can be used in either
current-mode or voltage-mode. It is well suited for single-ended
boost converter applications.
Device features include a precision voltage reference, low
power start-up circuit, high frequency oscillator, wide-band
error amplifier and fast current-limit comparator. The use of
proprietary process capabilities and unique design techniques
results in fast propagation delay times and high output current
over a wide range of output voltages.
Constructed with the Intersil radiation hardened Silicon Gate
(RSG) Dielectric Isolation BiCMOS process, the HS-1825ARH,
HS-1825AEH have been specifically designed to provide highly
reliable performance when exposed to harsh radiation
environments. Features Electrically screened to DLA SMD # 5962-99558 QML qualified per MIL-PRF-38535 Requirements Radiation environment
-Maximum total dose 300 krad(SI)
-Vertical architecture provides low dose rate immunity
-DI RSG process provides latch-up immunity Low start-up current . 100ВµA (Typical) Fast propagation delay 80ns (Typical) 12V to 30V operation 1A (peak) dual output drive capability 5.1V reference Undervoltage lockout Programmable soft-start Switching frequencies to 500kHz Latched overcurrent comparator with full cycle restart Programmable leading edge blanking circuit Applications Current or voltage mode switching power supplies Motor speed and direction control Pin Configuration …