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LT3496 Datasheet(PDF) 4 Page - Linear Technology

Part # LT3496
Description  60V Triple Step-Down LED Driver Programmable Temperature Protection
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3496 Datasheet(HTML) 4 Page - Linear Technology

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LT3597
4
3597f
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
RISET1-3 = 20k
l
±0.35
±0.35
±1.5
±2
%
%
LED Pin Voltage
Adaptive VOUT Loop Enabled
1.1
V
LED1-3 Open Detection Threshold
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) VOUT1-3 = 6V
1
1.25
2
V
LED1-3 Pin Leakage Current
VLED1-3 = 42V
100
nA
PWM1-3 Input Low Voltage
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
IFAULT = 200µA
0.11
V
FAULT Pin Input leakage Current
FAULT = 25V
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.



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