LTC4367 ELECTRICAL CHARACTERISTICSThe l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. VIN = 2.5V to 60V, unless otherwise noted. (Note 2)SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS tD(ON) GATE Turn-On Delay Time VIN = 12V, Power Good to ΔVGATE > 0V, CGATE = 2.2nF LTC4367 l 22 32 45 ms LTC4367-1 l 0.2 0.5 1.2 ms UV, OV VUV UV Input Threshold Voltage UV Falling l 492.5 500 507.5 mV VOV OV Input Threshold Voltage OV Rising l 492.5 500 507.5 mV VUVHYST UV Input Hysteresis VIN = VOUT = 12V l 20 25 32 mV VOVHYST OV Input Hysteresis VIN = VOUT = 12V l 20 25 32 mV ILEAK UV, OV Leakage Current V = 0.5V, VIN = 60V l ±10 nA tFAULT UV, OV Fault Propagation Delay Overdrive = 50mV l 1 2 µs VIN = VOUT = 12V SHDN VSHDN SHDN Input Threshold SHDN Falling l 0.4 0.75 1.2 V ISHDN SHDN Input Current SHDN = 10V, VIN = 60V l ±15 nA tSTART Delay Coming Out of Shutdown Mode SHDN Rising to FAULT Released, VIN = VOUT = 12V l LTC4367 400 800 1400 µs LTC4367-1 125 250 500 µs tSHDN(F) SHDN to FAULT Asserted VIN = VOUT = 12V l 1.5 3 µs tLOWPWR Delay from Turn Off to Low Power VIN = VOUT = 12V Operation LTC4367 l 20 32 48 ms LTC4367-1 l 0.125 0.3 0.6 ms FAULT VOL FAULT Output Voltage Low IFAULT = 500µA, VIN = 12V l 0.15 0.4 V IFAULT FAULT Leakage Current FAULT = 5V, VIN = 60V l ±200 nA Note 1. Stresses beyond those listed under Absolute Maximum Ratings Note 3. These pins have a diode to GND. They may go below –0.3V if the may cause permanent damage to the device. Exposure to any Absolute current magnitude is limited to less than 1mA. Maximum Rating condition for extended periods may affect device Note 4. The GATE pin is referenced to VOUT and does not exceed 73V for reliability and lifetime. the entire operating range. Note 2. All currents into pins are positive; all voltages are referenced to GND unless otherwise noted. 4367fb 4 For more information www.linear.com/LTC4367
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