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UC1904 датащи(PDF) 3 Page - Texas Instruments |
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UC1904 датащи(HTML) 3 Page - Texas Instruments |
3 / 7 page UC1904 UC2904 UC3904 PARAMETER TEST CONDITIONS MIN TYP MAX UNITS OV UV Window, LS Input, OC Input, ARST Input, and ON/OFF Input Thresholds (cont.) Under-Voltage Thresholds WADJ = 0.25V, Offset from VREF, Input H to L -140 -125 -110 mV S1, S2 WADJ = 0.5V, Offset from VREF, Input H to L -270 -250 -230 mV WADJ = 1V, Offset from VREF, Input H to L -540 -500 -460 mV Under-Voltage Thresholds WADJ = 0.25V, Offset from VREF, Input H to L -150 -125 -110 mV S3, S4 Positive Mode WADJ = 0.5V, Offset from VREF, Input H to L -285 -250 -230 mV WADJ = 1V, Offset from VREF, Input H to L -555 -500 -460 mV OV and UV Threshold Hysteresis As a Function of WADJ 30 50 70 mV/V S3 Negative Mode Thresholds Over-Voltage, WADJ = 0.5V, Input H to L -13.52 -13.2 -12.88 V Under-Voltage, WADJ = 0.5V, Input L to H -11.06 -10.8 -10.54 V Hysteresis, WADJ = 0.5V 80 120 160 mV S4 Negative Mode Thresholds Over-Voltage, WADJ = 0.5V, Input H to L -5.63 -5.5 -5.37 V Under-Voltage, WADJ = 0.5V, Input L to H -4.61 -4.5 -4.39 V Hysteresis, WADJ = 0.5V 30 50 70 mV WADJ Input Bias Current 0.25V < WADJ <1.0V -5 5 µA/V LS Threshold Input = H to L 1.96 2 2.04 V Threshold hysteresis 65 100 125 mV OC Threshold Input = H to L 1.9 2 2.1 V Threshold hysteresis 50 100 150 mV ARST Input Threshold Input = L to H 2.25 2.5 2.75 V Input = H to L 0.56 0.625 0.69 V ON/OFF Input Threshold Input high level 1.74 2.4 V Input low level 0.6 1.35 V Sense and Logic Input Bias Currents Sense 1-4, Positive Mode Input = 2.8V 250 800 nA Input = 2.2V -1000 -250 nA Sense 3 Negative Mode Input = -12V -700 -500 -300 µA Sense 4 Negative Mode Input = -5V -700 -500 -300 µA Line, and OC Inputs Input = 2.2V 300 1000 nA ON/OFF Input Input = 2.5V 150 600 nA ARST Input Input = 0.5 -2000 -700 nA Open Collector Outputs (OV/OC Out, PG Out, PWRW Out, ON/OFF Out) Saturation Voltage IOUT = 10mA 0.2 0.4 V Leakage current VOUT = 20V 5 µA POR Delay Delay 160 250 350 ms/ µF Internal Pullup Current 9 µA Threshold Low to High 2.25 V OFF Delay Delay 120 185 250 ms/ µF Internal Pullup current 12 µA Threshold Low to High 2.25 V OV Fault Delay Delay 10 20 50 µs Unless otherwise stated, these specifications hold for TA = 0 to 70 °C for the UC3904, -40 to +85 °C for the UC2904, and -55 to +125°C for the UC1904, +VIN = 15V, WADJ = 0.5V, Sense Inputs 1-4, OC and LS Inputs = 2.5V. The ON/OFF Input and the ARST Input = 0V. ELECTRICAL CHARACTERISTICS (cont): 3 |
Аналогичный номер детали - UC1904_08 |
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Аналогичное описание - UC1904_08 |
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