LT3653 ELECTRICAL CHARACTERISTICSThe l denotes the specifi cations which apply over the full operatingtemperature range, otherwise specifi cations are at TA = 25°C; VIN = 12V, VBOOST = 17V, VSW = 0V, RILIM = 33.2k, unless otherwise noted.PARAMETERCONDITIONSMINTYPMAXUNITS VC Clamp Voltage VOUT = 0V 1.75 V Switch Peak Current Limit (Note 4) 2 A Switch VCESAT ISW = 1A 275 mV Boost Diode Drop IDIODE = 60mA 0.9 1.2 V Boost Pin Current ISW = 1A 28 mA HVOK Output Voltage High IHVOK = 1mA l 4 4.4 5 V HVOK Output Voltage Low IHVOK = –2μA l 0.25 V Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 3: Absolute Maximum Voltage at VIN pin is 60V for non-repetitive may cause permanent damage to the device. Exposure to any Absolute 1 second transients. Maximum Rating condition for extended periods may affect device Note 4: Switch Peak Current Limit guaranteed by design and/or correlation reliability and lifetime. to static test. Note 2: The LT3653E is guaranteed to meet performance specifi cations Note 5: This IC includes overtemperature protection that is intended from 0°C to 125°C. Specifi cations over the –40°C to 125°C operating to protect the device during momentary overload conditions. Junction temperature range are assured by design, characterization, and correlation temperature will exceed the maximum operating junction temperature with statistical process controls. The LT3653I specifi cations are when overtemperature protection is active. Continuous operation above guaranteed over the full –40°C to 125°C temperature range. High junction the specifi ed maximum operating junction temperature may impair device temperatures degrade operating lifetimes. Operating lifetime is derated at reliability. junction temperatures greater than 125°C. 3653f 3
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