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UC2844D8TR Fiches technique(PDF) 6 Page - Texas Instruments |
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UC2844D8TR Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 56 page 6 UC1842, UC2842, UC3842, UC1843, UC2843, UC3843 UC1844, UC2844, UC3844, UC1845, UC2845, UC3845 SLUS223D – APRIL 1997 – REVISED AUGUST 2016 www.ti.com Product Folder Links: UC1842 UC2842 UC3842 UC1843 UC2843 UC3843 UC1844 UC2844 UC3844 UC1845 UC2845 UC3845 Submit Documentation Feedback Copyright © 1997–2016, Texas Instruments Incorporated (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 Specifications 7.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT VVCC Low impedance source 30 V IVCC < 30 mA Self Limiting VVFB and VISENSE Analog input voltage –0.3 6.3 V VVC Input Voltage, Q and D Package only 30 V IOUTPUT Output drive current ±1 A ICOMP Error amplifier output sink current 10 mA EOUTPUT Output energy (capacitive load) 5 µJ TJ Junction temperature 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. (2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 7.2 ESD Ratings VALUE UNIT V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) ±3000 V Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) ±3000 (1) These recommended voltages for VC and POWER GROUND apply only to the D package. 7.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN TYP MAX UNIT VVCC and VVC (1) Supply voltage 12 28 V VVFB Input voltage 2.5 V VISENSE Input voltage 1 V IVCC Supply current, externally limited 25 mA IOUTPUT Average output current 200 mA IVREF Reference output current –20 mA fOSC Oscillator frequency 100 500 kHz TA Operating free-air temperature UC184x –55 125 °C UC284x –40 85 UC384x 0 70 (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. 7.4 Thermal Information THERMAL METRIC(1) UCx84x UNIT D (SOIC) D (SOIC) P (PDIP) FK (LCCC) 8 PINS 14 PINS 8 PINS 20 PINS RθJA Junction-to-ambient thermal resistance 104.8 78.2 53.7 — °C/W RθJC(top) Junction-to-case (top) thermal resistance 47.3 37.1 46.7 36.2 °C/W RθJB Junction-to-board thermal resistance 45.9 32.6 31 35.4 °C/W ψJT Junction-to-top characterization parameter 8.2 7.3 17.1 — °C/W ψJB Junction-to-bottom characterization parameter 45.2 32.4 30.9 — °C/W |
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