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UC2854BMDWREP Fiches technique(PDF) 5 Page - Texas Instruments |
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UC2854BMDWREP Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 38 page UC2854B-EP www.ti.com SGLS318A – NOVEMBER 2005 – REVISED NOVEMBER 2015 Pin Functions (continued) PIN I/O DESCRIPTION NAME J/N/DW Q/L VCC 15 19 I Positive supply rail Used to set the peak limit point and as an internal reference for various device functions. VREF 9 12 O This voltage must be present for the device to operate. One of the inputs into the multiplier. This pin provides the input RMS voltage to the multiplier VRMS 8 10 I circuitry. This pin provides the feedback from the output. This input goes into the voltage error VSENSE 11 14 I amplifier and the output of the error amplifier is another of the inputs into the multiplier circuit. 7 Specifications 7.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT VCC Supply voltage 22 V VSENSE, VRMS, ISENSE MOUT 11 V Input voltage PKLMT 5 V IGTDRV GTDRV current, continuous 0.5 A IGTDRV GTDRV current, 50% duty cycle 1.5 A Input current RSET, IAC, PKLMT, ENA 10 mA TJ Junction temperature −55 150 °C Tsol Lead temperature, 1.6 mm (1/16 inch) from case for 10 seconds 300 °C Tstg Storage temperature −65 150 °C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 7.2 ESD Ratings VALUE UNIT V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. 7.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCC Supply voltage 10 20 V TJ Operating junction temperature −55 125 °C 7.4 Thermal Information UC2854B-EP DW (SOIC) THERMAL METRIC(1) UNIT 16 PINS HIGH LOW RθJA Junction-to-ambient thermal resistance (2) 36.9 38.4 °C/W RθJC Junction-to-case thermal resistance 73.1 111.6 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. (2) RθJA values are based on zero air flow. Copyright © 2005–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: UC2854B-EP |
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