LT3760EFE View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT3760EFE' PDF : 32 Pages View PDF
LT3760
Typical Performance Characteristics TA = 25°C, unless otherwise noted.
LED Current Waveforms
3000:1 PWM Dimming (100Hz)
I(LEDx)
40mA/DIV
(FRONT COVER
APPLICATION)
VREF vs Junction Temperature
1.525
1.505
SHDN/UVLO Threshold
vs Junction Temperature
1.525
1.505
I(L1)
1A/DIV
PWM
10V/DIV
5µs/DIV
1.485
1.485
3760 G04
1.465
1.465
1.445
–50
–25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3760 G05
1.445
–50
–25 0 25 50 75 100 125
JUNCTION TEMERATURE (°C)
3760 G06
SHDN/UVLO Pin (Hysteresis)
Current vs Junction Temperature
2.80
2.70
2.60
2.50
2.40
2.30
2.20
–50
–25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3760 G07
VIN Shutdown Current
vs Junction Temperature
5
VIN = 6V, SHDN/UVLO = 0V
4
3
2
1
0
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3760 G08
VIN Quiescent Current
vs Junction Temperature
15
VIN = 6V, RISET = 14.7k, CTRL = 0.1V
10
PWM = 1.5V, NO SWITCHING,
V(LED1-8) = 1.2V, CTRL = 0.1V
5
PWM = 0V, CTRL = 0.1V
Switching Frequency
vs Junction Temperature
1100
1050
1000
950
RT = 39.2k
VIN Quiescent Current vs VIN
12
RISET = 14.7k
10
PWM = 1.5V, NO SWITCHING,
V(LED1-8) = 1.2V, CTRL = 0.1V
8
6
4
PWM = 0V, CTRL = 0.1V
2
0
0 5 10 15 20 25 30 35 40
VIN (V)
3760 G09
VC High Clamp, Active
and Low Clamp Levels
vs Junction Temperature
2.5
VC HIGH CLAMP
2.0
1.5
VC ACTIVE (SWITCHING)
1.0
VC LOW CLAMP
0.5
0
–50 –25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3760 G10
900
–50
–25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3760 G11
0.0
–50
–25 0 25 50 75 100 125
JUNCTION TEMPERATURE (°C)
3760 G12
3760fc
6
Share Link: 
