3V to 12V Current-Limiting Hot-Swap Controllerswith Autoretry, DualSpeed/BiLevel Fault ProtectionMAX4271/MAX4272/MAX4273ELECTRICAL CHARACTERISTICS (continued) (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) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS Time from trigger to VGATE < 0.1V (triggered by either the ON input or the Slow Turn-Off Time tSLOW,OFF 60 µs slow comparator), CGATE = 1000pF to GND Time from current overload to VGATE < 0.1V Fast Turn-Off Time tFAST,OFF (triggered by the fast comparator, during 15 μs normal operation), CGATE = 1000pF to GND Voltage at which internal zener clamp circuitry is triggered, measured with Maximum Gate Protection respect to V (MAX4271/MAX4272), 6.7 7.5 V Voltage IN measured with respect to VLLMON (MAX4273) Measured with VIN ≥ 5V 5 Minimum Gate Drive Voltage respect to VIN, V IGATE = 8.5µA VIN ≥ 2.7V 2.7 During fast discharge, due to a fast 0.4 1 2.75 mA comparator fault in normal operation During startup (current regulation provided 25 70 195 Gate Discharge Current I by fast comparator) GATE,DIS During normal discharge, due to a slow μA comparator fault in normal mode, or by ON 75 200 550 going low Startup is initiated only after V LLMON Overvoltage Threshold LLMON is less 0.1 V than this voltage (MAX4273) Startup is initiated only after V GATE Overvoltage Threshold GATE is less 0.1 0.6 V than this voltage LLMON Impedance Im p ed ance to GN D , after a faul t ( M AX 4273) 1 kΩ REFERENCE (MAX4273) Output Voltage VREF No load, VIN = 5V 1.164 1.2 1.236 V Line Regulation ΔVREF, LINE 2.7V ≤ VIN ≤ 13.2V, no load 1 8 mV ΔV Load Regulation REF, IREF = 0 to 100μA, VIN = 5V 0.6 3 mV LOAD ON AND RESET COMPARATORS Threshold Voltage VIN = 5V, rising threshold at ON or INC 0.575 0.6 0.625 V Hysteresis VHYST 3 mV Power-Supply Rejection Ratio PSRR 2.7V ≤ VIN ≤ 13.2V ±1 mV/V 10mV overdrive, ON going positive or 10 μs Propagation Delay t negative, INC going negative D,COMP INC going positive 100 150 200 ms _______________________________________________________________________________________3
