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LP2953AMGW/883 Datasheet(PDF) 7 Page - Texas Instruments |
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LP2953AMGW/883 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 26 page  LP2953QML, LP2953QML-SP www.ti.com SNVS395C – NOVEMBER 2010 – REVISED APRIL 2013 LP2953A Electrical Characteristics Dropout Detection Comparator Parameters The following conditions apply, unless otherwise specified. VI = 6V, IL = 1mA, CL = 2.2µF, VO = 5V Feedback pin is tied to 5V Tap pin. Output pin is tied to Output Sense Pin. Sub- Parameter Test Conditions Notes Min Max Units groups 1.0 µA 1 IOH Output "High" Leakage VOH = 30V 2.0 µA 2, 3 250 mV 1 VOL Output "Low" Voltage VI = 4V, IO Comp = 400µA 400 mV 2, 3 -320 -150 mV 1 VTh Max Upper Threshold Voltage See(1) -380 -130 mV 2 -380 -120 mV 3 -450 -280 mV 1 VTh Min Lower Threshold Voltage See(1) -640 -180 mV 2 -640 -155 mV 3 (1) Comparator thresholds are expressed in terms of a voltage differential at the Feedback terminal below the nominal VRef measured at VI = VO(Nom) + 1V. To express these thresholds in terms of output voltage change, multiply by the Error amplifier gain, which is VO/ VRef = (R1 + R2)/R2 (refer to Figure 31). LP2953A Electrical Characteristics SHUTDOWN Input Parameters The following conditions apply, unless otherwise specified. VI = 6V, IL = 1mA, CL = 2.2µF, VO = 5V Feedback pin is tied to 5V Tap pin. Output pin is tied to Output Sense Pin. Sub- Parameter Test Conditions Notes Min Max Units groups -7.5 7.5 mV 1 VIO Input Offset Voltage Referred to VRef -10 10 mV 2 -12 12 mV 3 -30 30 nA 1 IIB Input Bias Current VI Comp = 0 to 5V -50 50 nA 2 -75 75 nA 3 LP2953A Electrical Characteristics Auxillary Comparator Parameters The following conditions apply, unless otherwise specified. VI = 6V, IL = 1mA, CL = 2.2µF, VO = 5V Feedback pin is tied to 5V Tap pin. Output pin is tied to Output Sense Pin. Sub- Parameter Test Conditions Notes Min Max Units groups -7.5 7.5 mV 1 VIO Input Offset Voltage Referred to VRef -10 10 mV 2 -12 12 mV 3 -30 30 nA 1 IIB Input Bias Current VI Comp = 0 to 5V -50 50 nA 2 -75 75 nA 3 1.0 µA 1 IOH Output "High" Leakage VOH = 30V, VI Comp = 1.3V 2.0 µA 2 2.2 µA 3 250 mV 1 VOL Output "Low" Voltage VI Comp = 1.1V, IO Comp = 400µA 400 mV 2 420 mV 3 Copyright © 2010–2013, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LP2953QML LP2953QML-SP |
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