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LT3484EDCB-1#TRMPBF

Description
Photo Flash Charger 6-Pin DFN EP T/R
File Size416KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Download user manual Parametric Compare View All

LT3484EDCB-1#TRMPBF Overview

Photo Flash Charger 6-Pin DFN EP T/R

LT3484EDCB-1#TRMPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Product CategoryPhoto Flash Charger
Input Voltage (V)1.8 to 16
Minimum Operating Supply Voltage (V)1.8
Maximum Operating Supply Voltage (V)16
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count6
Standard Package NameDFN
Supplier PackageDFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length2
Package Width3
PCB changed6
Lead ShapeNo Lead
LT3484-0/LT3484-1/LT3484-2
Photoflash Capacitor
Chargers
FEATURES
DESCRIPTIO
Highly Integrated IC in 2mm
×
3mm DFN Package
Reduces Solution Size
Uses Small Transformers:
5.8mm
×
5.8mm
×
3mm
Fast Photoflash Charge Times:
4.6s for LT3484-0 (0V to 320V, 100µF, V
IN
= 3.6V)
5.7s for LT3484-2 (0V to 320V, 100µF, V
IN
= 3.6V)
5.5s for LT3484-1 (0V to 320V, 50µF, V
IN
= 3.6V)
Operates from Two AA Batteries, or Any Supply from
1.8V up to 16V
Controlled Average Input Current
500mA (LT3484-0)
350mA (LT3484-2)
225mA (LT3484-1)
No Output Voltage Divider Needed
No External Schottky Diode Required
Charges Any Size Photoflash Capacitor
Available in 6-Lead 2mm
×
3mm DFN Package
The LT
®
3484 family of photoflash capacitor charger ICs is
designed for use in digital camera and mobile phone
applications where space is at a premium. The LT3484’s
patented control technique allows it to use extremely small
transformers, and the improved NPN power switch re-
quires no external Schottky diode clamp, reducing solu-
tion size. Output voltage detection requires no external
circuitry as the transformer turns ratio determines final
charge voltage.
The devices feature a V
BAT
pin, which allows the use of 2
alkaline cells to charge the capacitor. The LT3484-0, -2
and -1 have primary current limits of 1.4A, 1A and 0.7A
respectively, resulting in tightly controlled average input
current of 500mA, 350mA and 225mA respectively. The
three versions are otherwise identical.
The CHARGE pin gives full control of the part to the user.
Driving CHARGE low puts the part in shutdown. The DONE
pin indicates when the part has completed charging. The
LT3484 series of parts are housed in a tiny low profile
2mm
×
3mm DFN package.
, LTC and LT are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents
including 6636021.
APPLICATIO S
Digital Camera and Cell Phone Flash Charger
TYPICAL APPLICATIO
LT3484-0 Photoflash Charger Uses
High Efficiency 3mm Tall Transformers
DANGER HIGH VOLTAGE – OPERATION BY HIGH VOLTAGE
TRAINED PERSONNEL ONLY
V
BAT
2AA OR
1 TO 2 Li-Ion
1:10.2
1
4.7µF
2
V
BAT
V
IN
0.1µF
100k
LT3484-0
DONE
CHARGE
348412 TA01
LT3484-0 Charging Waveform
V
IN
= 3.6V
C
OUT
= 100µF
4
5
320V
+
SW
V
CC
5V
150µF
PHOTOFLASH
CAPACITOR
V
OUT
50V/DIV
AVERAGE
INPUT
CURRENT
1A/DIV
GND
U
1s/DIV
3484 TA02
U
U
3484012f
1

LT3484EDCB-1#TRMPBF Related Products

LT3484EDCB-1#TRMPBF LT3484EDCB-0#TRM LT3484EDCB-0#TRMPBF LT3484EDCB-0#TRPBF LT3484EDCB-1#TRPBF LT3484EDCB-2#TRMPBF LT3484EDCB-2#TRPBF
Description Photo Flash Charger 6-Pin DFN EP T/R Photo Flash Charger 6-Pin DFN EP T/R Photo Flash Charger 6-Pin DFN EP T/R Photo Flash Charger 6-Pin DFN EP T/R Photo Flash Charger 6-Pin DFN EP T/R Photo Flash Charger 6-Pin DFN EP T/R Photo Flash Charger 6-Pin DFN EP T/R
EU restricts the use of certain hazardous substances Compliant Not Compliant Compliant Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Unconfirmed Active Active Active Active Active
Product Category Photo Flash Charger Photo Flash Charger Photo Flash Charger Photo Flash Charger Photo Flash Charger Photo Flash Charger Photo Flash Charger
Input Voltage (V) 1.8 to 16 1.8 to 16 1.8 to 16 1.8 to 16 1.8 to 16 1.8 to 16 1.8 to 16
Minimum Operating Supply Voltage (V) 1.8 1.8 1.8 1.8 1.8 1.8 1.8
Maximum Operating Supply Voltage (V) 16 16 16 16 16 16 16
Minimum Operating Temperature (°C) -40 -40 -40 -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85 85 85 85
Supplier Temperature Grade Extended Extended Extended Extended Extended Extended Extended
Packaging Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel
Pin Count 6 6 6 6 6 6 6
Standard Package Name DFN DFN DFN DFN DFN DFN DFN
Supplier Package DFN EP DFN EP DFN EP DFN EP DFN EP DFN EP DFN EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max) 0.75(Max)
Package Length 2 2 2 2 2 2 2
Package Width 3 3 3 3 3 3 3
PCB changed 6 6 6 6 6 6 6
Lead Shape No Lead No Lead No Lead No Lead No Lead No Lead No Lead
HTS 8542.39.00.01 - 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01
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