UC1846-SP

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UC1846-SP SLUS871D – JANUARY 2009 – REVISED DECEMBER 2016 UC1846-SP Class-V, Radiation Hardened PWM Controller 1 Features 1 QML-V Qualified, SMD 5962-86806 5962P8680603VxA: – Radiation Hardness Assurance (RHA) up to 30-krad(Si) Total Ionizing Dose (TID) – Passes Functional and Specified PostRadiation Parametric Limits at 45 krad at LDR (10 mrad(Si)/s) per 1.5× Over Test as Defined in MIL-STD-883 Test Method 1019.9 Paragraph 3.13.3.b – Exhibits Low-Dose Rate Sensitivity but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019 Automatic Feed-Forward Compensation Programmable Pulse-by-Pulse Current Limiting Automatic Symmetry Correction in Push-Pull Configuration Enhanced Load Response Characteristics Parallel-Operation Capability for Modular Power Systems Differential Current-Sense Amplifier With Wide Common-Mode Range Double-Pulse Suppression 500-mA (Peak) Totem-Pole Outputs ±1% Bandgap Reference Undervoltage Lockout (UVLO) Soft-Start Capability Shutdown Terminal 500-kHz Operation 2 Applications DC-DC Converters Satellite Buses and Payloads Space Launch Vehicles Undersea Cabling Available in Military Temperature Range (–55°C to 125°C) Supports Various Topologies: – Flyback, Forward, Buck, Boost – Push-Pull, Half-Bridge, Full Bridge With External Interface Circuit 3 Description The UC184...