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UC3173A Datasheet(PDF) 3 Page - Texas Instruments |
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UC3173A Datasheet(HTML) 3 Page - Texas Instruments |
3 / 12 page 3 UC3173A ELECTRICAL CHARACTERISTICS: 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. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input Supply VIN Supply Current 10 13 mA VC Supply Current IOUT = 0A 1.2 2.0 mA VL Supply Current 0.65 1.0 mA Total Supply Current Supplies = 5V, IOUT = 0A 12 16 mA Supplies = 12V, IOUT = 0A 13 18 mA VL UVLO Threshold Low to High 2.6 2.8 V UVLO Threshold Hysteresis 300 mV Under Voltage (UV) Comparator Input Bias Current Max at Either UV Input −0.25 −1.0 µA UV Thresholds Low to High, Other Input = 5V 1.28 1.3 1.32 V UV Threshold Hysteresis 19 24 29 mV PWROK Vsat IOUT = 5mA, UV Input Low 0.15 0.45 V PWROK Leakage VOUT = 20V 5 µA Power Amplifiers A and B Input Offset Voltage A Amplifier, VCM = 2.5V 4 mV B Amplifier, VCM = 2.5V 12 mV Input Bias Current VCM = 2.5V, Inverting Inputs Only −150 −500 nA Input Bias Current at Ref. Input (REFIN − CS+)/48kΩ,TJ = 25°C 152127 µA/V CMRR VCM = 1V to 10V, Supplies = 12V 70 90 dB PSRR VIN = 4V to 15V, VCM = 1.5V 70 90 dB Large Signal Voltage Gain Supplies = 12V, VOUT = 1V, IOUT = 300mA to VOUT = 11V, IOUT = −300mA 3.0 15.0 V/mV Gain Bandwidth Product A Amplifier (Note 4) 2.0 MHz B Amplifier (Note 4) 1.0 MHz Slew Rate (Note 4) 1.0 V/ µs High-Side Current Limit Low Range Mode 0.6 0.8 A High Range Mode 1.1 1.6 A Output Saturation Voltage High-Side, IOUT = −100mA (Note 5) 0.7 V High-Side, IOUT = −300mA (Note 5) 0.8 V High-Side, IOUT = −550mA (Note 5) 0.95 V Low-Side, IOUT = 100mA 0.2 V Low-Side, IOUT = 300mA 0.25 V Low-Side, IOUT = 550mA 0.35 V Total VSAT,IOUT = 100mA 0.9 1.2 V Total VSAT,IOUT = 300mA 1.05 1.4 V Total VSAT,IOUT = 550mA 1.3 1.7 V 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 = 550mA 1.0 V Low-Side Diode, VF ID = 550mA, INH Activated, B Amplifer Only 1.0 V |
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