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LT3003

3003fa

ELECTRICAL CHARACTERISTICS

PACKAGE/ORDER INFORMATION

ABSOLUTE MAXIMUM RATINGS

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

(Note 1)

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

VEE = 0V, ILED1,2,3 = 100mA

VEE = 4V, ILED1,2,3 = 100mA

●

336

Minimum (VIN – VEE)VEE = 0V to 36V

2.7

VIN Quiescent Current

PWM = 1V, ILED1,2,3 = 100mA

PWM = 0V, VLED1 = VLED2 = VLED3

10.5

470

600

µA

VIN Shutdown Current

SHDN = 0V, ILED1,2,3 = 0mA

µA

VMAX Quiescent Current

PWM = 1V, ILED2 = 100mA

PWM = 0V, VLED1 = VLED2 = VLED3

300

µA

SHDN Pin Threshold

ILED2 = 100mA, VLED1 = VLED2 = VLED3

●

0.25

0.7

LED Current Matching

ILED2 = 350mA, VLED1 = VLED2 = VLED3

–3

|LED2 – LED1|, |LED2 – LED3| LED Current

Matching with LED Pin Voltage Mismatch

ILED2 = 350mA,

(|VLED2 – VLED1| + |VLED2 – VLED3|) = 700mV

–3.5

0.5

+3.5

LED Pin Voltage

ILED2 = 100mA

0.7

0.8

0.9

LED1, LED2, LED3 Maximum Current

VLED1,2,3 < 1.5V

375

500

550

LED1, LED2, LED3 Maximum Leakage Current

PWM = 0V, VLED1,2,3 = 48V

0.1

µA

PWM Switching Threshold

ILED1,2,3 = 100mA

●

0.3

0.5

0.7

Turn-On Delay (PWM On to ILED On)

PWM = 0V to 1V, ILED > 50mA

µs

VEE Pin Current in Buck Mode

PWM = 0V, VMAX = 40V, VIN = 39V, VEE = 36V

0.1

µA

Overtemperature Sense Point (OT1, OT2)

(Note 4)

125

°C

Overtemperature Hysteresis Point

(Note 5)

–6° from Overtemp

Sense Point

°C

OT1 Pull-Down Current

OT1 = 0.3V (Note 4)

100

µA

LED1

LED2

LED3

VMAX

VIN

VEE

SHDN

OT2

OT1

PWM

TOP VIEW

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.

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