LT3695 datasheet(4/28 Pages) LINER

4 / 28 page

LT3695

3695f

ELECTRICAL CHARACTERISTICS The l denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 10V, VRUN/SS = 10V, unless otherwise noted. (Note 4)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Boost Schottky Diode Voltage Drop

IBSD = 50mA

720

900

Boost Schottky Diode Reverse Leakage

VSW = 10V, VBD = 0V

0.1

μA

Minimum Boost Voltage (Note 8)

1.7

2.3

BOOST Pin Current

ISW = 0.5A

10.5

17.5

RUN/SS Pin Current

VRUN/SS = 2.5V

VRUN/SS = 10V

4.5

7.5

μA

RUN/SS Input Voltage High

2.5

RUN/SS Input Voltage Low

0.2

PG Leakage Current

VPG = 5V

0.1

μA

PG Sink Current

VPG = 0.4V

100

1000

μA

PG Threshold as % of VFB

Measured at FB Pin (Pin Voltage Rising)

PG Threshold Hysteresis

Measured at FB Pin

SYNC Threshold Voltage

300

550

800

SYNC Input Frequency

0.3

2.2

MHz

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 the device

reliability and lifetime.

Note 2: Positive currents ﬂow into pins, negative currents ﬂow out of pins.

Minimum and maximum values refer to absolute values.

Note 3: Absolute maximum voltage at VIN and RUN/SS pins is 60V for

nonrepetitive 1 second transients, and 36V for continuous operation.

Note 4: The LT3695E is guaranteed to meet performance speciﬁcations

from 0°C to 125°C junction temperature. Speciﬁcations over the –40°C

to 125°C operating junction temperature range are assured by design,

characterization and correlation with statistical process controls. The

LT3695I is guaranteed over the full –40°C to 125°C operating junction

temperature range. The LT3695H is guaranteed over the full –40°C to

150°C operating junction temperature range.

Note 5: This IC includes overtemperature protection that is intended to

protect the devices during momentary overload conditions. Junction

temperature will exceed the maximum operating junction temperature

when overtemperature protection is active. Continuous operation above

the speciﬁed maximum operating junction temperature may impair device

reliability.

Note 6: This is the voltage necessary to keep the internal bias circuitry in

regulation.

Note 7: Current limit guaranteed by design and/or correlation to static test.

Slope compensation reduces current limit at higher duty cycles.

Note 8: This is the minimum voltage across the boost capacitor needed to

guarantee full saturation of the switch.

LT3695 Datasheet(PDF) 4 Page - Linear Technology

LT3695 Datasheet(HTML) 4 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Datasheet Download

Link URL