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LT3486 Datasheet(PDF) 5 Page - Linear Technology

Part # LT3486
Description  Dual 1.3A White LED Step-Up Converters with Wide Dimming
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3486 Datasheet(HTML) 5 Page - Linear Technology

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LT3486
5
3486f
TA = 25°C unless otherwise specified.
Input Current with Output 1 and
Output 2 Open Circuit
RT vs Oscillator Frequency
Oscillator Frequency vs VIN
Oscillator Frequency vs
Temperature
Quiescent Current vs VIN
PWM Pin Input Bias Current
Switch Current Limit vs
Duty Cycle
REF Voltage vs Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
VIN (V)
2
10
15
18
3486 G08
5
0
6
10 12
22 24
20
14
4
8
20
16
TA = 25°C
RT = 63.4k
OSCILLATOR FREQUENCY (kHz)
1000
3486 G09
10
100
500
2500
2000
1500
1000
0
VIN (V)
2
1000
1050
18
3486 G10
950
900
6
10 12
22 24
1100
14
4
8
20
16
RT = 53.6k
TEMPERATURE (
°C)
100
10000
1000
3486 G11
–50
125
–25
0
25
50
75
100
RT = 22.1k
RT = 53.6k
RT = 309k
VIN (V)
0
0
2
4
6
8
12
4
812
16
3486 G12
20
2
6
10
14
18
22 24
10
SHDN = 3V
CTRL1 = CTRL2 = 3V
UVLO
PWM PIN VOLTAGE (V)
0
0
0.5
8
3486 G13
– 0.5
–1.0
2
4
6
10
1.0
VIN = 3.6V
PWM 1
PWM 2
DUTY CYCLE (%)
20
1200
1300
1400
1500
1600
40
60
80
100
3486 G14
1700
1800
30
50
70
90
VIN = 3.6V
TEMPERATURE (
°C)
–50
–25
1.20
1.24
1.30
0
50
75
3486 G15
1.22
1.28
1.26
25
100
125
VIN = 3.6V
REF Voltage Load Regulation
REF LOAD CURRENT (
µA)
0
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
160
3468 G16
40
80
120
200
140
20
60
100
180
VIN = 3.6V
TA = 25°C
TA = –50°C
TA = 25°C
TA = 85°C



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