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LT3003
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V IN ............................................................................40V
PACKAGE/ORDER INFORMATION
TOP VIEW
LED1, LED2, LED3 ....................................................48V
V MAX , SHDN ..............................................................48V
V IN – V EE ...................................................................36V
LED1
LED2
LED3
V MAX
V IN
1
2
3
4
5
11
10
9
8
7
6
V EE
SHDN
OT2
OT1
PWM
V EE ............................................................................36V
PWM .........................................................................15V
OT1, OT2.....................................................................6V
MSE PACKAGE
10-LEAD PLASTIC MSOP
T JMAX = 125°C, θ JA = 35°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
Operating Junction Temperature Range
(Notes 2, 3, 4) ........................................ –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
ORDER PART NUMBER
LT3003EMSE
Order Options Tape and Reel: Add #TR
MSE PART MARKING
LTCFF
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
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
V IN Operational Input Voltage
V EE = 0V, I LED1,2,3 = 100mA
●
3
36
V
V EE = 4V, I LED1,2,3 = 100mA
40
V
Minimum (V IN – V EE )
V IN Quiescent Current
V EE = 0V to 36V
PWM = 1V, I LED1,2,3 = 100mA
PWM = 0V, V LED1 = V LED2 = V LED3
2.7
10.5
470
3
600
V
mA
μA
V IN Shutdown Current
V MAX Quiescent Current
SHDN = 0V, I LED1,2,3 = 0mA
PWM = 1V, I LED2 = 100mA
PWM = 0V, V LED1 = V LED2 = V LED3
2
4
55
20
10
90
300
μA
μA
nA
SHDN Pin Threshold
LED Current Matching
|LED2 – LED1|, |LED2 – LED3| LED Current
I LED2 = 100mA, V LED1 = V LED2 = V LED3
I LED2 = 350mA, V LED1 = V LED2 = V LED3
I LED2 = 350mA,
●
0.25
–3
–3.5
0.7
0
0.5
1
+3
+3.5
V
%
%
Matching with LED Pin Voltage Mismatch
(|V LED2 – V LED1 | + |V LED2 – V LED3 |) = 700mV
LED Pin Voltage
LED1, LED2, LED3 Maximum Current
LED1, LED2, LED3 Maximum Leakage Current
I LED2 = 100mA
V LED1,2,3 < 1.5V
PWM = 0V, V LED1,2,3 = 48V
0.7
375
0.8
500
0.1
0.9
550
1
V
mA
μA
PWM Switching Threshold
I LED1,2,3 = 100mA
●
0.3
0.5
0.7
V
Turn-On Delay (PWM On to I LED On)
PWM = 0V to 1V, I LED > 50mA
2
μs
V EE Pin Current in Buck Mode
Overtemperature Sense Point (OT1, OT2)
Overtemperature Hysteresis Point
PWM = 0V, V MAX = 40V, V IN = 39V, V EE = 36V
(Note 4)
(Note 5)
0.1
125
–6° from Overtemp
1
μA
°C
°C
Sense Point
OT1 Pull-Down Current
OT1 = 0.3V (Note 4)
100
μA
3003fa
2
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