Datasheet LTC4366 (Analog Devices) - 5

LTC4366
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. All voltages relative to VSS, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS FB, SD, TIMER
VFB(REG) 3% FB pin Regulation Threshold (OUT – FB) l 1.193 1.23 1.267 V IFB FB Pin Leakage Current OUT – FB = 1.2V l 0 ±1 µA VSD(TH) SD Pin Threshold Voltage (VDD – SD) Falling l 1.0 1.5 2.3 V VSD(HYST) SD Pin Hysteresis LTC4366C/I/H l 147 280 530 mV LTC4366MP l 129 280 530 mV ISD SD Pin Input Pull-Up Current VDD – SD = 0.7V LTC4366C/I/H l –0.7 –1.6 –3.5 µA LTC4366MP l –0.5 –1.6 –3.5 µA VTIMER(H) TIMER Pin Threshold TIMER Rising, VDD = 7V, OUT = VZ(OUT) l 2.6 2.8 3.1 V ITIMER(UP) TIMER Pin Pull-Up Current TIMER = 1V LTC4366C/I/H l –5.1 –9 –13 µA LTC4366MP l –4 –9 –13 µA ITIMER(DN) TIMER Pin Pull-Down Current TIMER = 1V LTC4366C/I/H l 0.9 1.8 2.8 µA LTC4366MP l 0.7 1.8 2.8 µA ITIMER(RATIO) TIMER Pin Current Ratio ITIMER(DN)/ITIMER(UP) l 15 20 25 %
AC Characteristics
tDLY – SD SD Low to Gate Low Filter Time Step VDD – SD from 0V to 3V l 420 700 1200 µs tDLY – FAST FB Low to Gate Low Delay Time Step OUT – FB from 0V to 1.3V l 60 150 300 ns tD(COOL) Cool-Down Timer (Internal) VDD = VZ(VDD) LTC4366C/I/H l 5.9 9 16 Seconds LTC4366MP l 5.9 9 19 Seconds
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
Limits on the maximum rating is defined as whichever limit occurs may cause permanent damage to the device. Exposure to any Absolute first. An internal clamp limits the GATE pin to a maximum of 12V above Maximum Rating condition for extended periods may affect device source. Driving this pin to voltages beyond the clamp may damage the reliability and lifetime. device.
Note 2:
All currents into pins are positive.
Note 4:
TJ is calculated from the ambient temperature, TA, and power dissipation, PD, according to the formula: TJ = TA + (PD • θJA) 436612fe 5 For more information www.linear.com/LTC4366 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Pin Functions Simplified Diagram Functional Diagram Operation Applications Information Package Description Typical Application Related Parts