LT3003EMSE-TRPBF 查看數據表（PDF） - Linear Technology

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LT3003EMSE-TRPBF

3-Channel LED Ballaster with PWM

Linear Technology 

LT3003

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

OT2 Pull-Down Current

OT2 = 0.3V (Note 4)

300

µA

OT1, OT2 Leakage Current

OT1 = OT2 = 5V

1

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 specifications

from 0°C to 85°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.

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 specified maximum operating junction

temperature may impair device reliability.

Note 4: Correlation to static test at TA = 25°C.

Note 5: Guaranteed by design.

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.

ILED1,3 to ILED2 Matching

3.0

ILED1,3 – ILED2

ILED2

2.5 ILED2 = 350mA

VLED1 = VLED2 = VLED3

2.0

1.5

1.0

0.5

0

–50 –25 0 25 50 75 100 125

JUNCTION TEMPERATURE (°C)

3003 G01

VMAX Pin Current vs Temperature

10

10µs AFTER PWM = 0

9

8

7

6

5

4

3

2

1

0

–50 –25 0 25 50 75 100 125

JUNCTION TEMPERATURE (°C)

3003 G04

VIN Quiescent Current vs ILED

35

TJ = 27°C

30

25

20

15

10

5

0

50 100 150 200 250 300 350

ILED (mA)

3003 G02

VIN Shutdown Current

vs Temperature

7

SHDN = 0

6

5

4

3

2

1

0

–50 –25 0 25 50 75 100 125

JUNCTION TEMPERATURE (°C)

3003 G05

VEE Pin Current (Out of the Pin)

vs Temperature

500

10µs AFTER PWM = 0

450

400

350

300

250

200

150

100

50

0

–50 –25 0 25 50 75 100 125

JUNCTION TEMPERATURE (°C)

3003 G03

(VLED1,2,3 – VEE) vs ILED

1150

1100

1050

1000

950

900

850

800

50

100 150 200 250 300 350 400

ILED (mA)

3003 G06

3003fa

3

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