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LT3003
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. PWM = 1V, V MAX = 4V, V IN = 3V, V EE = 0V, I LED2 = 100mA,
OT1 = OT2 = Open, SHDN = V IN .
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OT2 Pull-Down Current
OT1, OT2 Leakage Current
OT2 = 0.3V (Note 4)
OT1 = OT2 = 5V
300
1
μA
μA
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 LT3003E is guaranteed to meet performance speci?cations
from 0°C to 85°C junction temperature. Speci?cations over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the speci?ed maximum operating junction
temperature may impair device reliability.
Note 4: Correlation to static test at T A = 25°C.
Note 5: Guaranteed by design.
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C unless otherwise noted.
I LED1,3 to I LED2 Matching
V IN Quiescent Current vs I LED
V EE Pin Current (Out of the Pin)
vs Temperature
3.0
I LED1,3 – I LED2
I LED2
2.5 I LED2 = 350mA
V LED1 = V LED2 = V LED3
2.0
35
30
25
T J = 27 ° C
500
450
400
350
10 μ s AFTER PWM = 0
1.5
20
15
300
250
200
1.0
0.5
10
5
150
100
50
0
–50 –25 0
25
50
75 100
125
0
50
100
150
200
250
300
350
0
–50 –25
0
25
50
75
100
125
JUNCTION TEMPERATURE ( ° C)
3003 G01
V MAX Pin Current vs Temperature
I LED (mA)
V IN Shutdown Current
vs Temperature
3003 G02
JUNCTION TEMPERATURE ( ° C)
(V LED1,2,3 – V EE ) vs I LED
3003 G03
10
9
8
7
6
10 μ s AFTER PWM = 0
7
6
5
4
SHDN = 0
1150
1100
1050
1000
5
4
3
2
1
3
2
1
950
900
850
0
–50 –25
0
25
50
75
100
125
0
–50 –25 0
25
50
75
100
125
800
50
100
150
200
250
300
350
400
JUNCTION TEMPERATURE ( ° C)
3003 G04
JUNCTION TEMPERATURE ( ° C)
3003 G05
I LED (mA)
3003 G06
3003fa
3
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