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UC1843-HIREL Fiches technique(PDF) 5 Page - Texas Instruments |
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UC1843-HIREL Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 10 page ERROR AMP CONFIGURATION _ + 2.5 V 2 1 VFB COMP ZF ZI 0.5 mA UNDER-VOLTAGE LOCKOUT VCC <17 mA <1 mA VOFF VON VCC 7 VCC ON/OFF Command to REST of IC VON VOFF 8.4 V 7.6 V UC1843-HiRel www.ti.com .................................................................................................................................................. SLUS896A – AUGUST 2009 – REVISED AUGUST 2009 ELECTRICAL CHARACTERISTICS (continued) Unless otherwise stated, these specifications apply for –55°C ≤ TA ≤ 125°C; VCC = 15 V; RT = 10 kW; CT = 3.3 nF,TA = TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT UNDER-VOLTAGE LOCKOUT SECTION Start Threshold 7.8 8.4 9.0 V Min. Operating Voltage After Turn On 7.0 7.6 8.2 PWM SECTION Maximum Duty Cycle 95% 97% 100% Minimum Duty Cycle 0% TOTAL STANDBY CURRENT Start-Up Current 0.5 1 mA Operating Supply Current VPIN 2 = VPIN 3 = 0 V 11 17 VCC Zener Voltager ICC = 25 mA 30 34 V Error amp can source or sink up to 0.5 mA. During under-voltage lock-out, the output drive is biased to sink minor amounts of current. Pin 6 should be shunted to ground with a bleeder resistor to prevent activating the power switch with extraneous leakage currents. Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): UC1843-HiRel |
Numéro de pièce similaire - UC1843-HIREL_15 |
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Description similaire - UC1843-HIREL_15 |
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