Datenblatt-Suchmaschine für elektronische Bauteile |
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UC2903DWTR Datenblatt(PDF) 3 Page - Texas Instruments |
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UC2903DWTR Datenblatt(HTML) 3 Page - Texas Instruments |
3 / 16 page ELECTRICAL CHARACTERISTICS UC1903 UC2903 UC3903 www.ti.com ........................................................................................................................................ SLUS233A – OCTOBER 1999 – REVISED SEPTEMBER 2008 Unless otherwise stated, these specifications apply for TA = –55°C to +125°C for the UC1903; –40°C to +85°C for the UC2903; and 0°C to +70°C for the UC3903; +VIN = 15V; Sense Inputs (Pins 6–9 and Pin 15) = 2.5V; VPIN 4 = 1.0V, TA = TJ. UC1903 / UC2903 UC3903 PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX SUPPLY Input Supply Current No Faults 7 9 7 11 mA UV, OV and Line Fault 10 15 10 18 mA Supply Under Voltage Threshold Fault Outputs Enabled 6.0 7.0 7.5 5.5 7.0 8.0 V (VSUV) Minimum Supply to Enable Power 3.0 4.0 3.0 4.0 V OK Output REFERENCE Output Voltage (VREF) TJ = 25°C 2.485 2.5 2.515 2.470 2.5 2.530 V Over Temperature 2.465 2.535 2.465 2.535 V Load Regulation IL = 0 to 10mA 1 10 1 15 mV Line Regulation +VIN = 8 to 40V 1 4 1 8 mV Short Circuit Current TJ = 25°C 40 40 mA FAULT THRESHOLDS(1) OV Threshold Adj. Offset from VREF as a function of VPIN 0.230 0.25 0.270 0.230 0.25 0.270 V/V 4 Input = Low to High, 0.5V ≤ VPIN 4 ≤ 2.5V UV Threshold Adj. Offset from VREF as a function of VPIN –0.270 –0.25 –0.230 –0.270 –0.25 –0.270 V/V 4 Input = High to Low, 0.5V ≤ VPIN 4 ≤ 2.5V OV & UV Threshold Hyst. 0.5V ≤ VPIN 4 ≤ 2.5V 10 20 30 10 20 30 mV/V OV & UV Threshold Supply +VIN = 8V to 40V 0.002 0.01 0.002 0.02 %/V Sensitivity Adjust Pin (Pin 4) Input Bias Current 0.5V ≤ VPIN 4 ≤ 2.5V ±1 ±10 ±1 ±12 µA/V Line Sense Threshold Input = High to Low 1.94 2.0 2.06 1.9 2.0 2.1 V Line Sense Threshold Hyst. 125 175 225 100 175 250 mV SENSE INPUTS Input = 2.8V(2) 1 3 1 6 µA Sense 1-4 Input Bias Current Input = 2.2(2) –1 –3 –1 -6 µA Line Sense Input Bias Current Input = 2.3V(2) 1 3 1 6 µA OV AND UV FAULT DELAY Charging Current 60 60 µA Threshold Voltage Delay Pin = Low to High 1.8 1.8 V Threshold Hysteresis TJ = 25°C 250 250 mV Delay Ratio of Threshold Voltage to Charging 20 30 50 20 30 50 ms/ µF Current (1) Reference to pin numbers in this specification pertain to 18 pin DIL N and J packages and 18 pin SOIC DW package. (2) These currents represent maximum input bias currents required as the sense inputs cross appropriate thresholds. Copyright © 1999–2008, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): UC1903 UC2903 UC3903 |
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