LT3598IUFTRPBF datasheet(4/24 Pages) LINER

Part #	LT3598IUFTRPBF

Description	6-String 30mA LED Driver with 1.5% Current Matching

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT3598

4

3598fa

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SHDN Pin Current

VSHDN = 0V, VIN = 5V

VSHDN = 5V, VIN = 5V

0.1

30

1

60

μA

SHDN Voltage High

1.6

V

SHDN Voltage Low

0.4

V

Soft-Start Charging Current

VSS = 0.1V

5

10

15

μA

PWM Input High Voltage

1V

PWM Input Low Voltage

0.4

V

PWM Pin Bias Current

PWM = 3.3V

0.1

1

μA

SYNC Input High Voltage

1.5

V

SYNC Input Low Voltage

0.4

V

SYNC Pin Bias Current

SYNC = 0V

SYNC = 3.3V

25

0.1

50

1

μA

VO_SW Switch Resistance

1000

Ω

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

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 5V, VSHDN = VIN unless otherwise noted. (Note 2)

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 LT3598E 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

LT3598I is guaranteed over the full –40°C to 125°C operating junction

temperature range.

Note 3: Current ﬂows out of FB pin.

Note 4: Current ﬂows out of CTRL pin.

Note 5: Current limit guaranteed by design and/or correlation to static test.

Current limit is independent of duty cycle and is guaranteed by design.

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LT3598IUFTRPBF Datasheet(PDF) 4 Page - Linear Technology

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