Datasheet LT4423 (Analog Devices) - 3

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Data Sheet LT4423 SPECIFICATIONS Table 1. Electrical Characteristics
(Specifications are at TA = 25°C, IN = SHDN = 8.4V, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS/COMMENTS MIN TYP MAX UNITS
Operating Voltage Range VIN -40°C ≤ TJ ≤ 125°C 1.9 28 V I Quiescent Current in OUT = -10mA I Measured -40°C ≤ T Forward Regulation CC J ≤ 125°C -10 -18 µA Through GND Quiescent Current in SHDN = GND I Measured -40°C ≤ T Shutdown SD J ≤ 125°C -0.1 -2 µA Through GND IN = GND, OUT = Reverse Leakage Current I 28V, -40°C ≤ T to IN REV(IN) SHDN = J ≤ 125°C -0.1 -0.5 µA GND IN = GND, OUT = Reverse Leakage Current I 28V, -40°C ≤ T to OUT REV(OUT) SHDN = J ≤ 125°C 0.1 3 µA GND Forward Regulation V Voltage (IN - OUT) REG IOUT = -10mA -40°C ≤ TJ ≤ 125°C 5 15 25 mV Internal Path On- R Resistance ON IOUT = -1A -40°C ≤ TJ ≤ 125°C 115 200 400 m Step OUT from Reverse Turn-Off Time tREV 8.4V to 8.6V -40°C ≤ TJ ≤ 125°C 15 25 µs STATUS Falling Response Time to Load Step I t OUT from -40°C ≤ T Step FON –10mA to -1A J ≤ 125°C 3 7 µs SHDN Rising Threshold VSRT -40°C ≤ TJ ≤ 125°C 1 1.3 1.6 V SHDN Hysteresis VHYST -40°C ≤ TJ ≤ 125°C -75 -130 -230 mV SHDN Input Current ISHDN SHDN = 28V -40°C ≤ TJ ≤ 125°C 1 2 µA Step SHDN from SHDN Delay to Power t GND to IN -40°C ≤ T Path Enable ON J ≤ 125°C 570 1000 µs STATUS Released Step SHDN from SHDN Delay to Power t IN to GND -40°C ≤ T Path Disable OFF J ≤ 125°C 85 160 µs STATUS Falling STATUS Output Voltage I V STATUS = 1mA, -40°C ≤ T Low OL(STAT) J ≤ 125°C 180 410 mV SHDN = GND STATUS Output High I Leakage OH(STAT) STATUS = 28V -40°C ≤ TJ ≤ 125°C ±5 ±200 nA Temperature when T Power Path Disabled
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TSD 145 160 175 °C .
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Rev. 0 3 of 18 Document Outline Features Applications General Description Simplified Application Diagram TABLE OF CONTENTS Revision History Specifications Absolute Maximum Ratings Pin Configurations and Function Descriptions Typical Performance Characteristics Block Diagram Theory of Operation Applications Information USB PD 3.0 and Back-Up Battery Supply Automatic Power Path Control 5V Power Ride-Through High-Voltage Load Switch with Load Sharing and Undervoltage Lockout Layout and Thermal Considerations Typical Applications High-Load Current Application Reverse Input Voltage Protection Related parts Outline Dimensions Ordering Guide