LTC4249

4

Rev. 0

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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: All currents into pins are positive; all voltages are referenced to

GND unless otherwise noted.

Note 3: The LTC4249 is tested under pulsed load conditions such that

the formula:

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Ready Outputs (RDY1 and RDY2)

Output Low Voltage

l

50

150

mV

Open-Drain Output High Leakage Current

RDY = 5V

l

1

µA

ECB Cool-Down Time after Fault

l

0.8

1

1.2

s

Decoupled with 0.1µF to GND

l

3.7

4.2

4.7

V

l

denotes specifications that apply over the full operating temperature

Note 4: The LTC4249 includes overtemperature protection that is intended

to protect the device during momentary overload conditions. Junction

temperature will exceed 150°C when overtemperature protection is active.

Continuous operation above the specified maximum operating junction

temperature may impair device reliability.

Note 5: These pins can be pulled below –0.3V through a resistor that limits

the current below 1mA.