Datasheet MAX4271, MAX4272, MAX4273 (Maxim) - 2

3V to 12V Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ABSOLUTE MAXIMUM RATINGS
IN to GND ..+15V Current into INC, ON (Note 2) ..±2mA STAT, OUTC, LLMON, AUXVCC to GND ...-0.3V to +14V Current into Any Other Pin ...±50mA GATE to GND ..-0.3V to (VIN + 8.5V) Continuous Power Dissipation (TA = +70°C) GATE to LLMON (Note 1)...-1V to +8.5V 8-Pin SO (derate 5.9mW/°C above +70°C)..471mW INC, ON to GND (Note 2) ...-1V to +14V 16-Pin QSOP (derate 8.3mW/°C above +70°C)...667mW CEXT to GND ...-8.5V to (VIN + 0.3V) 16-Pin SO (derate 8.7mW/°C above +70°C)..696mW CSPD, CTON, Operating Temperature Range ...-40°C to +85°C REF to GND ...-0.3V to the lower of (VIN + 0.3V) or +12V Storage Temperature Range ...-65°C to +150°C VSENSE, RTH, CTIM to GND...-0.3V to (VIN + 0.3V) Lead Temperature (soldering, 10s) ...+300°C
Note 1:
GATE can be pulled below LLMON, but current must be limited to 2mA.
Note 2:
INC and ON can be pulled below ground. Limiting the current to 2mA ensures that these pins are never lower than about -0.8V. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = +2.7V to +13.2V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +5V and TA = +25°C.) (Note 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLIES
Input Voltage Range VIN 2.7 13.2 V Supply Current IQ VON = VIN 0.6 1 mA
CURRENT CONTROL MAX4271/MAX4272/MAX4273
TA = +25°C 45 50 55 Slow Comparator Threshold VSC,TH VIN - VSENSE mV TA = TMIN to TMAX 43.5 56 Slow Comparator Response CSPD = floating 10 20 40 μs tCSPD Time CSPD = 100nF to GND 10 20 40 ms 5kΩ on TA = +25°C 45 50 55 RTH to VIN TA = TMIN to TMAX 43.5 56 MAX4273 75kΩ TA = +25°C 675 750 825 Fast Comparator Threshold V only FC,TH mV on RTH to VIN TA = TMIN to TMAX 650 840 RTH = GN D 180 200 220 MAX4271/MAX4272 Fast Comparator Response 10mV overdrive, from overload condition to tFCD 350 ns Time gate discharging SENSE Input Bias Current IB,SENSE VSENSE = VIN 0.2 10 μA
MOSFET DRIVER
MAX4271/MAX4272 CTIM = 100nF 21 31 41 Startup Period ms tSTART MAX4273 CTON = 100nF 21 31 41 (Notes 4, 5) No capacitor 5.5 μs Gate Charge Current IGATE GATE = IN (Note 6) 100 μA
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