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Description

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.

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 . . . . . . . . . . . . . . . . . . . . . . . 100µA (Typ)
• Fast Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . 80ns (Typ)
• 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