LT3599(RevD) Просмотр технического описания (PDF) - Linear Technology

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LT3599
(Rev.:RevD)

4-Channel 120mA LED Driver with ±1.5% Current Matching

Linear Technology 

LT3599

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 = 5V, unless otherwise noted. (Note 2)

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

PWM Pin Bias Current

PWM = 3.3V

0.1

2

µA

SYNC Input High Threshold

1.7

V

SYNC Input Low Threshold

0.8

V

SYNC Pin Bias Current

VO_SW Switch Resistance

OPENLED Pull-Down Current

SYNC = 0V (Note 3)

SYNC = 3.3V

PWM = 5V; LEDx < 0.2V, OPENLED = 0.3V

25

50

µA

0.1

1

µA

1000

Ω

1

mA

SHORTLED Pull-Down Current

PWM = 5V, SHORTLED = 0.3V

1

mA

DISABLE4 Input High Threshold

1.15

V

DISABLE4 Input Low Threshold

0.4

V

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 LT3599E 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

LT3599I is guaranteed over the full –40°C to 125°C operating junction

temperature range.

Note 3: Current flows out of pin.

Note 4: Current limit guaranteed by design and/or correlation to static test.

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

Note 5: TSSOP package only.

3599fd



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