データシートサーチシステム |
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UC1904 データシート(PDF) 2 Page - Texas Instruments |
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UC1904 データシート(HTML) 2 Page - Texas Instruments |
2 / 6 page UC1904 UC2904 UC3904 Input Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Sense Inputs, S1 And S2, Other Analog And Logic Inputs Maximum Forced Voltage . . . . . . . . . . . . . . . . . . -0.3V to 10V Maximum Forced Current . . . . . . . . . . . . . . . . . . . . . . ±10mA Sense Input S3, (-12V Sense Input) Maximum Forced Voltage . . . . . . . . . . . . . . . . . . -18V to 10V Maximum Forced Current . . . . . . . . . . . . . . . . . . . . . . ±10mA Sense Input S4, (-5V Sense Input) Maximum Forced Voltage . . . . . . . . . . . . . . . . . . -10V to 10V Maximum Forced Current . . . . . . . . . . . . . . . . . . . . . . ±10mA Open Collector Outputs Maximum Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Maximum Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Reference Output Current . . . . . . . . . . . . . . . Internally Limited Operating Junction Temperature . . . . . . . . . . . -55 °C to +150°C Storage Temperature . . . . . . . . . . . . . . . . . . . . -65 °C to +150°C PACKAGE PIN FUNCTION FUNCTION PIN 2.5V 1 POR DLY 2 N.C. 3 S1 4 S2 5 S3 6 S4 7 N.C. 8 LS Input 9 OC Input 10 PWRW Out 11 PG Out 12 OV/OC Out 13 VIN 14 ON/OFF Out 15 OFF DLY 16 ON/OFF Input 17 ARST Input 18 WADJ 19 Gnd 20 DIL-18, SOIC-18 (TOP VIEW) J or N PACKAGE, DW PACKAGE PLCC-20 (TOP VIEW) Q PACKAGE CONNECTION DIAGRAMS ABSOLUTE MAXIMUM RATINGS (Note 1) Note 1: Unless otherwise indicated, voltages are reference to ground and currents are positive into, negative out of, the speci- fied terminals. 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: PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input Supply VIN Supply Current VIN = 15V 3.2 4.5 mA VIN UVLO Threshold Low to High 4.5 4.75 V UVLO Threshold Hysteresis 50 mV Minimum VIN to Enable PG Out 0.8 1.5 V Reference Output Voltage(VREF)TJ = 25 °C 2.475 2.5 2.525 V Over Temperature, UC3904 2.47 2.53 V Over Temperature, UC2904 & UC1904 2.465 2.535 V Load Regulation IOUT = 0 to 4mA 6 mV Line Regulation VIN = 4.75 to 18V 5 mV Short Circuit Current VREF = 0V 17 mA OV UV Window, LS Input, OC Input, ARST Input, and ON/OFF Input Thresholds Over-Voltage Thresholds WADJ = 0.25V, Offset from VREF, Input L to H 110 125 140 mV S1, S2 WADJ = 0.5V, Offset from VREF, Input L to H 230 250 270 mV WADJ = 1V, Offset from VREF, Input L to H 460 500 540 mV Over-Voltage Thresholds WADJ = 0.25V, Offset from VREF, Input L to H 110 125 145 mV S3, S4 Positive Mode WADJ = 0.5V, Offset from VREF, Input L to H 230 250 280 mV WADJ = 1V, Offset from VREF, Input L to H 460 500 550 mV 2 |
同様の部品番号 - UC1904 |
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同様の説明 - UC1904 |
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