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UCC28633D Datasheet(PDF) 1 Page - Texas Instruments |
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UCC28633D Datasheet(HTML) 1 Page - Texas Instruments |
1 / 79 page SD GND VSENSE CS HV VDD DRV UCC28630 1 2 3 4 8 6 5 EMC Filter t o VAC VOUT 18 18.5 19 19.5 20 20.5 21 0 10 20 30 40 50 60 70 Output Power (W) +5% Limit 115V/60 Hz 230V/50 Hz ±5% Limit C001 1% Typical Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UCC28630 UCC28631 UCC28632, UCC28633 SLUSBW3C – MARCH 2014 – REVISED MARCH 2015 UCC28630, UCC28631, UCC28632 and UCC28633, High-Power Flyback Controller with Primary-Side Regulation and Peak-Power Mode 1 Features 3 Description The UCC2863x targets high-power, primary-side 1 • High-Power, Primary-Side Regulation for Output regulated flyback converters. The powerful gate driver Voltage and Current, No Opto-Coupler Required and ability to operate in both CCM and DCM make • Continuous Conduction Mode (CCM) and the device suitable for applications with a wide power Discontinuous Conduction Mode (DCM) Operation range. The peak power mode allows transient peak power delivery up to 200% of nominal rating, with • Built-In 700-V Start-Up Current Source only a 25% peak current increase, maximizing • Active X-Capacitor Discharge Function transformer utilization. (UCC28630 and UCC28633) The transformer bias winding is used to sense output • Adjustable Constant-Current (CC) Mode Limiting voltage for regulation, and for low-loss input voltage (except for UCC28630) sensing. Advanced sampling and processing • High Gate Drive Current 1-A Source and 2-A Sink techniques allow CCM operation, and deliver • Low Power Modes for <30-mW System Standby excellent output voltage regulation performance for opto-coupler-less designs at power levels of 100 W • Best-In-Class Light Load (10%) Efficiency >85% and above. for 65-W Nominal Power Design • Peak-Power Mode for Transient Overload A high-voltage current source enables fast and efficient start-up. Advanced light-load modes are • Shutdown Pin Interface for External NTC deployed (including switching frequency modulation • Protections: Overvoltage, Overcurrent, Over- and device sleep modes) to reduce both controller Temperature, Overload Timer (UCC28630), AC and system power consumption at no load and light Line UV, Brownout and Pin Protections load. These modes enable potential system designs to meet 30-mW no-load power for power designs up • Frequency Dither to Ease EMI Compliance to 30 W nominal, 60 W peak. (except the UCC28632) The device has been designed for ease-of-use and 2 Applications incorporates many features to enable a wide range of designs. Extensive protection features are included to • AC-DC Adapters for Notebook, Game Consoles, simplify system design. Printers • Open Frame SMPS for Industrial, Printer, White Device Information Goods, LCD Monitors PART NUMBER PACKAGE BODY SIZE • Energy Efficient AC-DC Supplies for Nominal UCC28630 Power 10-W to 65-W, (with up to 200% transient UCC28631 peak power) SOIC (7) 4.90 mm x 3.90 mm UCC28632 UCC28633 4 Simplified Schematic Typical Application Measured Regulation 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. |
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