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LT3751 Datasheet(PDF) 16 Page - Analog Devices

Part # LT3751
Description  Capacitor Charger Controller
PDF  16 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3751 Datasheet(HTML) 16 Page - Analog Devices

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LT3750A
16
Rev. 0
For more information www.analog.com
ANALOG DEVICES, INC. 2021
06/21
www.analog.com
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LT3420/LT3420-1
1.4A/1A, Photoflash Capacitor Charger with
Automatic Top-Off
Charges 220µF to 320V in 3.7 Seconds from 5V, VIN: 2.2V to 16V,
ISD < 1µA, 10-Lead MS Package
LT3468/LT3468-1
LT3468-2
1.4A, 1A, 0.7A, Photoflash Capacitor Charger
VIN: 2.5V to 16V, Charge Time: 4.6 Seconds for LT3468 (0V to 320V, 100µF,
VIN = 3.6V), ISD < 1µA, ThinSOT Package
LT3484-0/LT3484-1
LT3484-2
1.4A, 0.7A, 1A Photoflash Capacitor Charger
VIN: 1.8V to 16V, Charge Time: 4.6 Seconds for LT3484-0
(0V to 320V, 100µF, VIN = 3.6V), ISD < 1µA, 2mm × 3mm 6-Lead
DFN Package
LT3485-0/LT3485-1
LT3485-2/LT3485-3
1.4A, 0.7A, 1A, 2A Photoflash Capacitor Charger
with Output Voltage Monitor and Integrated IGBT
VIN: 1.8V to 10V, Charge Time: 3.7 Seconds for LT3485-0
(0V to 320V, 100µF, VIN = 3.6V), ISD < 1µA, 3mm × 3mm 10-Lead DFN
Driver
LT3751
High Voltage Flyback Capacitor Charger Controller VIN Range Depends on the Choice of External Components, 4mm × 5mm
20-Lead QFN and 20-Lead TSOP Packages
VCC
DONE
CHARGE
RVOUT
RDCM
GATE
SOURCE
VTRANS
60.4k
T1
1:10
D1
VOUT
300V
VTRANS
VCC
12V
•
•
C4
2.5mF
43k
8mΩ
M1
3750a TA05a
LT3750A
GND
RBG
100k
2.49k
100pF
OFF ON
C1
10µF
C1, C2: 25V X5R OR X7R CERAMIC CAPACITOR
C3: 25V SANYO OS-CON 25SVP56M
C4: CORNELL DUBILIER 7P252V360N082
D1: DIODES INC. MURS160
M1: NXP PHM21NQ15T
T1: WURTH 750032052 FLYBACK TRANSFORMER
C2
10µF
C3
56µF
×3
+
4, 5
6, 7
1
10
300V, 9A 2.5mF Capacitor Charger
Efficiency
Charge Time
VOUT (V)
0
70
80
75
85
90
95
100
50
100
150
200
3750a TA05b
250
300
VTRANS = 18V
VTRANS = 6V
VTRANS = 12V
TIME (SECONDS)
0
0
50
100
150
200
250
300
1
2
3
4
5
6
3750a TA05c
8
7
VTRANS = 18V
VTRANS = 6V
VTRANS = 12V



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