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ADM1072ARQ Scheda tecnica(PDF) 3 Page - Analog Devices |
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ADM1072ARQ Scheda tecnica(HTML) 3 Page - Analog Devices |
3 / 8 page ADM1072 –3– Rev. PrE 1/02 Pin Configuration ABSOLUTE MAXIMUM RATINGS* (TA = +25°C unless otherwise noted) MAIN_IN to GND . . . . . . . . . . . . . . . . . . . . . . –0.3V to +6V ON1,ON1,FLT1, FLT2 to GND . . . . . . . . . . . –0.3V to +6V OP1,OP2 to GND . . . . . . . . . . . . . . . . +0.3 V to (V IN + 0.3V) Maximum Switch Current Full Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A Standby Power Mode . . . . . . . . . . . . . . . . . . . . . . . . 200mA Continuous Power Dissipation (TA = +70 oC) . . . . . 667mW QSOP (derate 8.3mW/ oC above +70oC) Operating Temperature Range Industrial (A Version) . . . . . . . . . . . . . . . –40°C to +85°C Storage Temperature Range . . . . . . . . . . . –65°C to +150°C Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . +300°C *This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this speci- fication is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. PIN FUNCTION DESCRIPTION Pin Mnemonic Function 2, 3, 14, 15 MAIN_IN Input to MAIN P-channel MOSFET source (both channels). Bypass MAIN_IN with a 22µF capacitor to ground. 5, 12 STBY_IN Input to Standby P-channel MOSFET source (both channels) and supply to chip circuitry. Bypass STBY_IN with a 4.7µF capacitor to ground. 1, 4 OP1 Output from channel 1, P-channel MOSFET drains. Bypass OP1 with a 120µF capacitor to ground. 13, 16 OP2 Output from channel 2, P-channel MOSFET drains. Bypass OP2 with a 120µF capacitor to ground. 6 FLT1 Open-Drain Digital Output. FLT1 goes low when the channel 1 current limit is exceeded for 10mS or the die temperature exceeds +150 oC. During startup, FLT1 remains low for the turn-on time. 7 FLT2 Open-Drain Digital Output. FLT2 goes low when the channel 2 current limit is exceeded for 10mS or the die temperature exceeds +150 oC. During startup, FLT2 remains low for the turn-on time. 8 GND Ground pin for all chip circuits. 9 STBY Digital Input. Active high standby mode input. STBY = 0 sets normal operating mode with 500mA current limit. STBY = 1 sets standby mode with 100mA current limit. 10 ON2 Digital Input. Active-low switch enable for channel 2 (logic 0 turns the switch on). 11 ON1 Digital Input. Active-low switch enable for channel 1 (logic 0 turns the switch on). THERMAL CHARACTERISTICS 16-Pin QSOP Package: qJA = 105°C/Watt, qJC = 40°C/Watt ORDERING GUIDE Temperature Package Package Model Range Description Option ADM1072ARQ -40°C to +85°C 16-Pin QSOP RQ-16 Package AD M 1 0 7 2 T O P VIEW (No t to S cale) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 OP 1 MAIN _IN MAIN _IN OP 1 ST BY _IN FLT1 FLT2 GND OP 2 MAIN _IN MAIN _IN OP 2 ST BY _IN ON 1 ON 2 ST BY |
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