LT3597(RevA) データシートの表示（PDF） - Linear Technology
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LT3597 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
CONDITIONS
MIN TYP MAX UNITS
LED String Current Matching
LED Pin Voltage
LED1-3 Open Detection Threshold
RISET1-3 = 20k
Adaptive VOUT Loop Enabled
±0.35 ±1.5
%
l
±0.35 ±2
%
1.1
V
0.28
V
LED1-3 Short Protection Threshold (from GND) PWM1-3 = 3.3V
10
15
V
LED1-3 Short Protection Threshold (from VOUT1-3)
LED1-3 Pin Leakage Current
PWM1-3 Input Low Voltage
VOUT1-3 = 6V
VLED1-3 = 42V
1
1.25
2
V
200
nA
0.4
V
PWM1-3 Input High Voltage
1.6
V
PWM1-3 Pin Bias Current
200
nA
CTRL1-3 Voltage for Full LED Current
1.2
V
CTRL1-3 Pin Bias Current
CTRL1-3 = 6V
200
nA
CTRLM Voltage for Full LED Current
1.2
V
CTRLM Pin Bias Current
CTRLM = 3V
200
nA
FAULT Output Voltage Low
FAULT Pin Input leakage Current
IFAULT = 200µA
FAULT = 25V
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.
3597fa
4
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