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LT3420 Datasheet(PDF) 5 Page - Linear Technology

Part # LT3420
Description  Photoflash Capacitor Chargers with Automatic Refresh
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3420 Datasheet(HTML) 5 Page - Linear Technology

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LT3420/LT3420-1
5
3420fa
TYPICAL PERFOR A CE CHARACTERISTICS
Efficiency for Figure 2 Circuit,
LT3420-1
Input Current, LT3420
VCC Minimum Operating Voltage
Quiescent Current in Refresh Mode
VBAT Minimum Operating Voltage
Input Current, LT3420-1
3420 G13
90
80
70
60
50
40
VOUT (V)
100
200
300
50
150
350
250
VCC = VBAT = VIN
VIN = 3.3V
VIN = 5V
TA = 25°C
3420 G14
1000
900
800
700
600
500
VOUT (V)
100
200
300
50
150
350
250
FIGURE 1 CIRCUIT
VCC = VBAT = 3.3V
TA = 25°C
VOUT (V)
50
300
350
400
450
500
600
100
150
200
250
3420 G15
300
350
550
FIGURE 2 CIRCUIT
VCC = VBAT = 3.3V
TA = 25°C
VCC (V)
2.5
10
3420 G16
5.5
8.5
140
120
100
80
60
4.0
7.0
TA = 25°C
TEMPERATURE (
°C)
–50
100
3420 G17
050
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
–25
25
75
125
V+
V–
ENABLE VOLTAGE
IS HYSTERETIC
TEMPERATURE (
°C)
–50
100
3420 G18
050
–25
25
75
125
2.0
1.8
1.6
1.4
1.2
1.0
V+
V–
ENABLE VOLTAGE
IS HYSTERETIC
Graphs apply to both the LT3420 and LT34201-1 unless otherwise noted.



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