LT3485EDD-3#TRPBF Linear Technology, LT3485EDD-3#TRPBF Datasheet - Page 4

IC CHARGER PHOTOFLASH 10-DFN

LT3485EDD-3#TRPBF

Manufacturer Part Number
LT3485EDD-3#TRPBF
Description
IC CHARGER PHOTOFLASH 10-DFN
Manufacturer
Linear Technology
Datasheet

Specifications of LT3485EDD-3#TRPBF

Applications
Photoflash Capacitor Charger, Xenon
Current - Supply
5mA
Voltage - Supply
1.7 V ~ 10 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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LT3485-0/LT3485-1/
LT3485-2/LT3485-3
CURRENT
curves use the circuit of Figure 9, LT3485-2 use the circuit of Figure 10 and LT3485-3 use the circuit of Figure 11 unless otherwise noted.
CURRENT
AVERAGE
4
TYPICAL PERFOR A CE CHARACTERISTICS
AVERAGE
50V/DIV
50V/DIV
1A/DIV
1A/DIV
150
250
200
100
INPUT
INPUT
50
V
V
0
OUT
OUT
0
LT3485-1 Input Current
LT3485-3 Charging Waveform
LT3485-0 Charging Waveform
V
C
V
C
IN
OUT
IN
OUT
50
= 3.6V
= 3.6V
= 50µF
= 50µF
100
V
150
OUT
0.5s/DIV
0.5s/DIV
(V)
200
250
W
2.5V
3.6V
4.2V
3485 G07
300
3485 G04
3485 G01
U
CURRENT
AVERAGE
0.5A/DIV
50V/DIV
INPUT
V
100
400
300
200
OUT
0
6
5
1
0
LT3485-2 Input Current
4
3
2
0
LT3485-1 Charging Waveform
Charge Time
V
C
2
IN
OUT
= 3.6V
50
= 50µF
3
LT3485-1
LT3485-0
100
LT3485-2
4
V
0.5s/DIV
150
OUT
V
IN
5
(V)
(V)
LT3485-3
200
6
C
250
OUT
7
= 50µF
LT3485-0 curves use the circuit of Figure 8, LT3485-1
2.5V
3.6V
4.2V
3485 G08
3485 G02
1635 G05
300
8
CURRENT
AVERAGE
0.5A/DIV
50V/DIV
INPUT
V
600
500
400
200
900
800
700
300
100
600
500
400
300
200
100
OUT
0
0
0
0
LT3485-0 Input Current
LT3485-3 Input Current
LT3485-2 Charging Waveform
V
C
IN
OUT
= 3.6V
= 50µF
50
50
100
100
V
V
0.5s/DIV
150
150
OUT
OUT
(V)
(V)
200
200
250
250
34850123fb
3485 G09
3485 G06
2.5V
3.6V
4.2V
2.5V
3.6V
4.2V
3485 G03
300
300

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