LT3760IFE Ver la hoja de datos (PDF) - Linear Technology

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LT3760IFE

8-Channel × 100mA LED Driver

Linear Technology 

LT3760

Electrical Characteristics The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT = 6V, RISET =14.7k unless otherwise noted.

PARAMETER

GATE DRIVER

CONDITIONS

MIN TYP MAX UNITS

GATE Driver Output Rise Time

GATE Driver Output Fall Time

GATE Output Low

GATE Output High

OUTPUT VOLTAGE

VIN = 12V, CL = 3300pF (Note 4)

VIN = 12V, CL = 3300pF (Note 4)

IGATE= 0µA

INTVCC = VIN = 7V

IGATE = 0µA

30

nS

30

nS

0.1

V

6.95

V

VOUT Over Voltage Protection (OVP) Regulation Voltage

OVPSET Input Current (Out of Pin)

OVPSET = 0.22V

OVPSET = 1V

OVPSET = 0.22V, VOUT =12V

12.5

V

57

V

40

200

nA

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 LT3760E is guaranteed to meet performance specifications

from 0°C to 125°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. The

LT3760I is guaranteed to meet performance specifications from

-40°C to 125°C junction temperature.

Note 3: For Maximum Operating Ambient Temperature, see

Thermal Calculations in the Applications Information section.

Note 4: GATE rise and fall times are measured between 10% and 90%

of INTVCC voltage.

Note 5: See Duty Cycle Considerations in the Applications Information.

Typical Performance Characteristics TA = 25°C, unless otherwise noted.

Worst-Case Channels LED

Current Matching

(Normalized to 8-Channel Average)

0.8

0.4

0.0

– 0.4

RISET = 14.7k (I(LED) = 40mA)

– 0.8

–50 –25 0 25 50 75

100 125

JUNCTION TEMERATURE (°C)

3760 G01

LED Current

vs Junction Temperature

42

RISET = 14.7k

41

40

39

38

–50

–25 0 25 50 75 100 125

JUNCTION TEMERATURE (°C)

3760 G02

LED Current

vs CTRL Pin Voltage

110

100

RISET =

5.76k

90 7.32k

9.76k

80 14.7k

70 29.4k

60

50

40

30

20

10

0

0.00 0.25 0.50 0.75 1.00

CTRL (V)

1.25 1.50

3760 G03

3760fc

5

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