LT3597IUHG Ver la hoja de datos (PDF) - Linear Technology
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LT3597IUHG Datasheet PDF : 24 Pages
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LT3597
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 24V, BOOST = 29V, BIAS = 5V, EN/UVLO = 5V, PWM1-3 = 3.3V,
CTRL1-3 = CTRLM = TSET = 2.0V, VOUT1-3 = 24V, SYNC = 0V, unless otherwise specified. (Note 2)
PARAMETER
LED String Current Matching
CONDITIONS
RISET1-3 = 20k
LED Pin Voltage
LED1-3 Open Detection Threshold
LED1-3 Short Protection Threshold (from GND)
LED1-3 Short Protection Threshold (from VOUT1-3)
LED1-3 Pin Leakage Current
PWM1-3 Input Low Voltage
PWM1-3 Input High Voltage
PWM1-3 Pin Bias Current
CTRL1-3 Voltage for Full LED Current
CTRL1-3 Pin Bias Current
CTRLM Voltage for Full LED Current
CTRLM Pin Bias Current
FAULT Output Voltage Low
FAULT Pin Input leakage Current
Adaptive VOUT Loop Enabled
PWM1-3 = 3.3V
VOUT1-3 = 6V
VLED1-3 = 42V
CTRL1-3 = 6V
CTRLM = 3V
IFAULT = 200µA
FAULT = 25V
MIN TYP MAX UNITS
±0.35 ±1.5
%
l
±0.35 ±2
%
1.1
V
0.28
V
10
15
V
1
1.25
2
V
100
nA
0.4
V
1.6
V
200
nA
1.2
V
200
nA
1.2
V
200
nA
0.11
V
200
nA
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 LT3597E 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
LT3597I specifications are guaranteed over the full –40°C to 125°C
operating junction temperature range.
Note 3: For Maximum Operating Ambient Temperature, see Thermal
Considerations in the Applications Information section.
Note 4: Guaranteed by design.
3597f
4
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