概览
描述
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..
特性
- 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: 100µA (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
