LT3484EDCB-1#TRPBF Linear Technology, LT3484EDCB-1#TRPBF Datasheet - Page 12

IC PHOTOFLASH CAP CHARGER 6-DFN

LT3484EDCB-1#TRPBF

Manufacturer Part Number
LT3484EDCB-1#TRPBF
Description
IC PHOTOFLASH CAP CHARGER 6-DFN
Manufacturer
Linear Technology
Datasheet

Specifications of LT3484EDCB-1#TRPBF

Applications
Photoflash Capacitor Charger
Current - Supply
5mA
Voltage - Supply
1.7 V ~ 16 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
6-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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LT3484-0/LT3484-1/LT3484-2
TYPICAL APPLICATIO S
RELATED PARTS
ThinSOT is a trademark of Linear Technology Corporation.
12
PART NUMBER
LTC3407
LT3420/LT3420-1
LTC3425
LTC3440
LT3468/LT3468-1/
LT3468-2
2.5V TO 8V
2.5V TO 8V
V
V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
CC
CC
1.8V TO 8V
1.8V TO 8V
C1: 4.7µF, X5R OR X7R, 10V
T1: TDK PART# LDT565630T-001, L
D1: VISHAY GSD2004S DUAL DIODE CONNECTED IN SERIES
R1: PULL UP RESISTOR NEEDED IF DONE PIN USED
C1: 4.7µF, X5R OR X7R, 10V
T1: TDK PART# LDT565630T-002, L
D1: VISHAY GSD2004S DUAL DIODE CONNECTED IN SERIES
R1: PULL UP RESISTOR NEEDED IF DONE PIN USED
CHARGE
CHARGE
DONE
DONE
V BAT
V BAT
C2
0.1µF
C2
0.1µF
1.4A/0.7A/1A Photoflash Capacitor Chargers in ThinSOT™
DESCRIPTION
Dual 600mA (I
Converter
1.4A/1A, Photoflash Capacitor Chargers with
Automatic Top-Off
5A I
Converter
600mA (I
Converter
SW
FAX: (408) 434-0507
R1
100k
R1
100k
, 8MHz, Multi-Phase Synchronous Step-Up DC/DC
C1
4.7µF
C1
4.7µF
OUT
3
1
2
3
1
2
), 2MHz, Synchronous Buck-Boost DC/DC
V
DONE
CHARGE
V
DONE
CHARGE
V
V
IN
IN
OUT
BAT
BAT
6
6
LT3484-0 Photoflash Circuit Uses Tiny 3mm Tall Transformer
LT3484-1 Photoflash Circuit Uses Tiny 3mm Tall Transformer
LT3484-0
LT3484-1
), 1.5MHz, Synchronous Step-Down DC/DC 96% Efficiency, V
U
PRI
PRI
= 6µH, N = 10.4
= 14.5µH, N = 10.2
SW
SW
GND
GND
www.linear.com
5, 6
7, 8
4, 5
4, 5
5
8
7
7
1:10.4
1:10.2
T1
T1
4
1
4
1
D1
D1
+
+
C OUT
PHOTOFLASH
CAPACITOR
C OUT
PHOTOFLASH
CAPACITOR
320V
320V
3484 TA03
3484 TA04
Charges 100µF to 320V in 4.6 Seconds from 5V, V
COMMENTS
I
Charges 220µF to 320V in 3.7 Seconds from 5V,
V
95% Efficiency, V
I
95% Efficiency, V
I
I
SD
SD
Q
Q
IN
= 25µA, I
= 5mA, I
: 2.2V to 16V, I
<1µA, MS10E Package
<1µA, QFN-32 Package
SD
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
0
SD
2
Charge Time
2
Charge Time
<1µA, ThinSOT Package
<1µA, MS-10 Package
IN
IN
IN
C
Q
OUT
: 2.5V to 5.5V, V
: 0.5V to 4.5V, V
: 2.5V to 5.5V, V
C
3
3
= 90µA, I
OUT
= 20µF
= 50µF
4
4
© LINEAR TECHNOLOGY CORPORATION 2005
C
SD
OUT
V
V
C
IN
IN
OUT
<1µA, MS10 Package
5
5
(V)
= 50µF
(V)
= 100µF
OUT(MIN)
OUT(MIN)
OUT(MIN)
LT/TP 0705 500 • PRINTED IN USA
6
6
: 2.5V to 5.5V,
= 0.6V, I
= 5.25V, I
7
7
3484 TA05
3484 TA06
IN
: 2.5V to 16V,
8
8
Q
Q
= 40µA,
= 12µA,
3484012f

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