Datasheet LTC4364-1, LTC4364-2 (Analog Devices) - 4

LTC4364-1/LTC4364-2
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 12V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTMR(R) TMR Retry Threshold HGATE Rising (After 32 Cycles), VCC = 4V to 80V l 0.125 0.15 0.175 V ∆VTMR Early Warning Timer Window VTMR(G) – VTMR(F), VCC = 4V to 80V l 75 100 125 mV VUV UV Input Threshold UV Falling, VCC = 4V to 80V l 1.22 1.25 1.28 V VUV(HYST) UV Input Hysteresis l 25 50 80 mV VUV(RST) UV Reset Threshold UV Falling, VCC = 4V to 80V, LTC4364-1 Only l 0.5 0.6 0.7 V VOV OV Input Threshold OV Rising, VCC = 4V to 80V l 1.22 1.25 1.28 V VOV(HYST) OV Input Hysteresis 12 mV IIN UV, OV Input Current UV, OV = 1.25V l 0 1 µA UV, OV = –30V l –0.3 –0.6 mA VOL ENOUT, FLT Output Low ISINK = 0.25mA l 0.1 0.3 V ISINK = 2mA l 0.5 1.3 V ILEAK ENOUT, FLT Leakage Current ENOUT, FLT = 80V l 0 2.5 µA ∆VOUT(TH) Out High Threshold (VCC – VOUT) ENOUT from Low to High l 0.4 0.7 1 V VOUT(RST) Out Reset Threshold ENOUT from High to Low l 1.4 2.2 3 V IOUT OUT Input Current VCC = OUT = 12V, SHDN Open l 40 80 µA OUT = –15V l –4 –8 mA Output Current in Shutdown, ISNS + IOUT VCC = SOURCE = SENSE = OUT = 12V, Shutdown l 12 40 µA VSHDN SHDN Input Threshold VCC = 4V to 80V l 0.5 1.6 2.2 V VSHDN(FLT) SHDN Pin Float Voltage VCC = 12V to 80V l 2.3 4 6.5 V ISHDN SHDN Input Current SHDN = 0.5V l –1 –3.3 µA Maximum Allowable Leakage, VCC = 4V –1.5 µA SHDN = –30V l –120 –300 µA D Retry Duty Cycle, Overvoltage FB = 1.5V, VCC = 80V, OUT = 16V l 0.125 0.2 % Retry Duty Cycle, Output Short ∆VSNS = 60mV, VCC – OUT = 12V l 0.075 0.12 % tOFF,HGATE(UV) Undervoltage to HGATE Low Propagation UV Steps from 1.5V to 1V l 1.3 4 μs Delay tOFF,HGATE(OV) Overvoltage to HGATE Low Propagation FB Steps from 1V to 1.5V l 0.25 1 μs Delay tOFF,HGATE(OC) Overcurrent to HGATE Low Propagation ∆VSNS Steps from 0mV to 150mV, OUT = 0V l 0.5 2 μs Delay
Ideal Diode
ΔVDGATE DGATE Gate Drive, (VDGATE − VSOURCE) VCC = 4V, No Fault, IDGATE = 0µA, −1µA l 5 8.5 12 V VCC = 8V to 80V, No Fault, IDGATE = 0µA, −1µA l 10 12 16 V IDGATE(UP) DGATE Pin Pull-Up Current DGATE = SOURCE = VCC = 12V, ∆VSD = 0.1V l –5 –10 –15 µA IDGATE(DN) DGATE Pin Pull-Down Current ∆VDGATE = 5V, ∆VSD = –0.2V l 60 130 mA ∆VDGATE = 5V, Shutdown/Fault Turn-Off l 0.4 1 mA ∆VSD Ideal Diode Regulation Voltage, ∆VDGATE = 2.5V, VCC = SOURCE = 12V l 10 30 45 mV (VSOURCE − VSENSE) ∆VDGATE = 2.5V, VCC = SOURCE = 4V l 24 48 72 mV tOFF(DGATE) DGATE Turn-Off Propagation Delay ∆VSD Steps from 0.1V to –1V l 0.35 1.5 μs
Note 1:
Stress beyond those listed under Absolute Maximum Ratings
Note 3:
Internal clamps limit the HGATE and DGATE pins to minimum of may cause permanent damage to the device. Exposure to any Absolute 10V above the SOURCE pin. Driving these pins to voltages beyond the Maximum Rating condition for extended periods may affect device clamp may damage the device. reliability and lifetime.
Note 2:
All Currents into device pins are positive and all currents out of device pins are negative. All voltages are referenced to GND unless otherwise specified. 436412f 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts