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UC1846-SP датащи(PDF) 1 Page - Texas Instruments |
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UC1846-SP датащи(HTML) 1 Page - Texas Instruments |
1 / 29 page Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UC1846-SP SLUS871C – JANUARY 2009 – REVISED OCTOBER 2015 UC1846-SP Rad-Tolerant Class-V, Current-Mode PWM Controller 1 Features 3 Description The UC1846-SP control devices provide all of the 1 • QML-V Qualified, SMD 5962-8680603VxA (1) necessary features to implement fixed frequency, – Rad-Tolerant: 40 kRad (Si) TID current mode control schemes while maintaining a • Automatic Feed-Forward Compensation minimum external parts count. The superior performance of this technique can be measured in • Programmable Pulse-by-Pulse Current Limiting improved line regulation, enhanced load response • Automatic Symmetry Correction in Push-Pull characteristics, and a simpler, easier-to-design Configuration control loop. Topological advantages include inherent • Enhanced Load Response Characteristics pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the • Parallel-Operation Capability for Modular Power ability to parallel power modules while maintaining Systems equal current sharing. • Differential Current-Sense Amplifier With Wide Protection circuitry includes built-in UVLO and Common-Mode Range programmable current limit in addition to soft start • Double-Pulse Suppression capability. A shutdown function is also available • 500-mA (Peak) Totem-Pole Outputs which can initiate either a complete shutdown with • ±1% Bandgap Reference automatic restart or latch the supply off. • Undervoltage Lockout (UVLO) Other features include fully latched operation, double- • Soft-Start Capability pulse suppression, deadline adjust capability, a ±1% trimmed bandgap reference, and low outputs in the • Shutdown Terminal OFF state. • 500-kHz Operation Device Information(1) 2 Applications PART NUMBER PACKAGE BODY SIZE (NOM) • DC-DC Converters CDIP (16) 6.92 mm × 19.56 mm • Satellite Buses and Payloads CFP (16) 6.73 mm × 10.30 mm UC1846-SP • Space Launch Vehicles LCCC (20) 8.89 mm × 8.89 mm KGD N/A • Undersea Cabling • Available in Military Temperature Range (–55°C to (1) For all available packages, see the orderable addendum at the end of the data sheet. 125°C) • Supports Various Topologies: Block Diagram – Flyback, Forward, Buck, Boost – Push-Pull, Half-Bridge, Full Bridge With External Interface Circuit (1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mRad/s. Radiation Lot Acceptance Testing is available - contact factory for details. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Аналогичный номер детали - UC1846-SP_15 |
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Аналогичное описание - UC1846-SP_15 |
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