LT3003 Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LT3003 Datasheet PDF : 16 Pages
| |||
LT3003
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN ............................................................................40V
LED1, LED2, LED3 ....................................................48V
VMAX, SHDN..............................................................48V
VIN – VEE ...................................................................36V
VEE ............................................................................36V
PWM ......................................................................... 15V
OT1, OT2.....................................................................6V
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
PACKAGE/ORDER INFORMATION
TOP VIEW
LED1 1
LED2 2
10 VEE
9 SHDN
LED3 3
11
8 OT2
VMAX 4
VIN 5
7 OT1
6 PWM
MSE PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 35°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER MSE PART MARKING
LT3003EMSE
LTCFF
Order Options Tape and Reel: Add #TR
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 specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. PWM = 1V, VMAX = 4V, VIN = 3V, VEE = 0V, ILED2 = 100mA,
OT1 = OT2 = Open, SHDN = VIN.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN Operational Input Voltage
Minimum (VIN – VEE)
VIN Quiescent Current
VIN Shutdown Current
VMAX Quiescent Current
SHDN Pin Threshold
LED Current Matching
|LED2 – LED1|, |LED2 – LED3| LED Current
Matching with LED Pin Voltage Mismatch
LED Pin Voltage
VEE = 0V, ILED1,2,3 = 100mA
VEE = 4V, ILED1,2,3 = 100mA
VEE = 0V to 36V
PWM = 1V, ILED1,2,3 = 100mA
PWM = 0V, VLED1 = VLED2 = VLED3
SHDN = 0V, ILED1,2,3 = 0mA
PWM = 1V, ILED2 = 100mA
PWM = 0V, VLED1 = VLED2 = VLED3
ILED2 = 100mA, VLED1 = VLED2 = VLED3
ILED2 = 350mA, VLED1 = VLED2 = VLED3
ILED2 = 350mA,
(|VLED2 – VLED1| + |VLED2 – VLED3|) = 700mV
ILED2 = 100mA
●
3
36
V
40
V
2.7
3
V
10.5
mA
470
600
µA
2
4
10
µA
55
90
µA
20
300
nA
● 0.25
0.7
1
V
–3
0
+3
%
–3.5
0.5
+3.5
%
0.7
0.8
0.9
V
LED1, LED2, LED3 Maximum Current
LED1, LED2, LED3 Maximum Leakage Current
PWM Switching Threshold
Turn-On Delay (PWM On to ILED On)
VLED1,2,3 < 1.5V
PWM = 0V, VLED1,2,3 = 48V
ILED1,2,3 = 100mA
PWM = 0V to 1V, ILED > 50mA
375
500
550
mA
0.1
1
µA
● 0.3
0.5
0.7
V
2
µs
VEE Pin Current in Buck Mode
PWM = 0V, VMAX = 40V, VIN = 39V, VEE = 36V
0.1
1
µA
Overtemperature Sense Point (OT1, OT2)
(Note 4)
125
°C
Overtemperature Hysteresis Point
(Note 5)
–6° from Overtemp
°C
Sense Point
OT1 Pull-Down Current
OT1 = 0.3V (Note 4)
100
µA
3003fa
2
Share Link: 