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UC3172ADW Folha de dados(PDF) 4 Page - Texas Instruments |
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UC3172ADW Folha de dados(HTML) 4 Page - Texas Instruments |
4 / 12 page UC3172A PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Power Amplifiers A and B (cont.) VC to VIN Headroom Volts below VIN, delta High-Side, Vsat = 100mV, IOUT = −−550mA (Note 5) 0.23 0.4 V High-Side Diode, VF Id = 1A 1.5 V Low-Side Diode, VF Id = 1A, INH Activated, B Amplifier Only 1.5 V Current Sense Amplifier Common-mode Range Supplies = 12V (Note 4) −−3 13 V Input Offset Voltage VCM = 2.5V, Low Range Mode 2.0 mV VCM = 2.5V, High Range Mode 4.0 mV Input Offset Change with Common Mode Input VCM = 0V to 13V, Supplies = 12V, Low Range Mode 2000 µV/V VCM = 0V to 13V, Supplies = 12V, High Range Mode 4000 µV/V Voltage Gain VDIFF = +1.0 to −−1.0V, VCM = 2.5V, High Range Mode 0.485 0.50 0.515 V/V VDIFF = +1.0 to −−1.0V, VCM = 2.5V, Low Range Mode 1.95 2.0 2.05 V/V Saturation Voltage Low-Side, IOUT = 1mA 0.1 0.3 V High-Side, IOUT = −−1mA, Referenced to VIN 0.1 0.3 V Parking Function PARK Threshold Voltage 0.6 1.1 1.7 V PARK Threshold Current Internal Pull-Up, PARK = 0.6V 50 75 µA PRKDRV Saturation Voltage IOUT = 50mA 0.15 0.35 V PRKDRV Leakage VOUT = 20V 50 µA Regulating Voltage at VPARK Input 1.275 1.30 1.325 V Amplifier A Auxiliary Input Bias Current −−300 −−750 nA Amplifier A Parking High-Side Saturation Voltage IOUT = −−50mA, VIN = 0V, VC = VL = 5V, PARK Open, VC to AOUT 0.8 0.95 V Minimum Parking Supply At VC and VL, VIN = 0V, AOUT - PRKDRV Vsat > 0.5V, IPARK = 50mA 1.4 1.7 V Minimum Supply for Parking Drive and Power OK Operation At VL, VC = VIN = 0V, Vsat < 0.5V, PRKDRV IOUT = 50mA, Rl = 30 ohms to 2V 1.1 1.4 V PWROK IOUT = 5mA, Rl = 300 ohms to 2V 1.2 1.6 V VL Parking Supply Current PARK Open, VL = 5V, VC = 1.6V, VIN = 0V, PWROK IOUT = 5mA, PRKDRV IOUT = 50mA 1.6 3.0 mA Auxiliary Functions INH Threshold 0.6 1.1 1.7 V INH Current INH = 1.7V −−0.5 −−1.0 µA RANGE Threshold 0.6 1.1 1.7 V RANGE Current RANGE = 1.7V 50 100 µA COMPA Pin Saturation Voltage RANGE = 0V, Pin Current = ±500µA, Referenced to AOUT 0.02 0.1 V COMPA Leakage Current RANGE = 1.7V, Supplies = 12V, AOUT − VCOMPA = ±6V 5 µA Total Supply Current when Inhibited VIN, VC, and VL currents 1.0 1.8 mA Thermal Shutdown Temperature (Note 4) 165 °C Unless otherwise stated, these specifications apply for TA = 0 to +70 °C, VIN = 5V, VC = VIN = VL, REFIN = VIN/2, RANGE, PARK, and INH = 0V, and TA =TJ. ELECTRICAL CHARACTERISTICS Note 4: Guaranteed by design. Not 100% tested in production. Note 5: The high -side saturation performance of the UC3172A is referenced to the VIN supply pin. The VC supply pin can operate about 400mV below the VIN supply input without affecting the performance. 4 |
Nº de peça semelhante - UC3172ADW |
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Descrição semelhante - UC3172ADW |
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