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LTC3813 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3813 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 32 page  LTC3813 4 3813fb Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTC3813E is guaranteed to meet performance specifications from 0°C to 85°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTC3813I is guaranteed to meet performance specifications over the full –40°C to 125°C operating temperature range. Note 3: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula: LTC3813: TJ = TA + (PD • 100°C/W) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IPGOOD PGOOD Leakage Current VPGOOD = 5V 0 2 μA PG Delay PGOOD Delay VFB Falling 125 μs VCC Regulators VEXTVCC EXTVCC Switchover Voltage EXTVCC Rising EXTVCC Hysteresis l 6.4 0.1 6.7 0.25 0.5 V V VINTVCC,1 INTVCC Voltage from EXTVCC 10.5V < VEXTVCC < 15V 9.4 10 10.6 V ΔVEXTVCC,1 VEXTVCC - VINTVCC at Dropout ICC = 20mA, VEXTVCC = 9.1V 170 250 mV ΔVLOADREG,1 INTVCC Load Regulation from EXTVCC ICC = 0mA to 20mA, VEXTVCC = 12V 0.01 % VINTVCC,2 INTVCC Voltage from NDRV Regulator Linear Regulator in Operation 9.4 10 10.6 V ΔVLOADREG,2 INTVCC Load Regulation from NDRV ICC = 0mA to 20mA, VEXTVCC = 0 0.01 % INDRV Current into NDRV Pin VNDRV – VINTVCC = 3V 20 40 60 μA VCCSR Maximum Supply Voltage Trickle Charger Shunt Regulator 15 V ICCSR Maximum Current into NDRV/INTVCC Trickle Charger Shunt Regulator, INTVCC ≤ 16.7V (Note 8) 10 mA The l denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C, INTVCC = DRVCC = VBOOST = VOFF = VRNG = SHDN = UVIN = VEXTVCC = VNDRV = 10V, VSYNC = VSENSE+ = VSENSE– = VBGRTN = VSW = 0V, unless otherwise specified. Note 4: The LTC3813 is tested in a feedback loop that servos VFB to the reference voltage with the ITH pin forced to a voltage between 1V and 2V. Note 5: The dynamic input supply current is higher due to the power MOSFET gate charging being delivered at the switching frequency (QG • fSW). Note 6: Guaranteed by design. Not subject to test. Note 7: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. Note 8: ICC is the sum of current into NDRV and INTVCC. ELECTRICAL CHARACTERISTICS |
Similar Part No. - LTC3813 |
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Similar Description - LTC3813 |
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