Datasheet Linear Technology LTC3218

Manufacturer	Linear Technology
Series	LTC3218

400mA Single Wire Camera LED Charge Pump

Datasheets

PDF, 163 Kb, Revision: B, File uploaded: Sep 27, 2017

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Packaging

	LTC3218EDDB#PBF	LTC3218EDDB#TRMPBF	LTC3218EDDB#TRPBF
N	1	2	3
Package	3x2 DFN-10 Package Outline Drawing	3x2 DFN-10 Package Outline Drawing	3x2 DFN-10 Package Outline Drawing
Package Code	DDB	DDB	DDB
Package Index	05-08-1722	05-08-1722	05-08-1722
Pin Count	10	10	10

Parametrics

Parameters / Models	LTC3218EDDB#PBF	LTC3218EDDB#TRMPBF	LTC3218EDDB#TRPBF
Demo Boards	DC1030A	DC1030A	DC1030A
Design Tools	LTspice Model	LTspice Model	LTspice Model
Export Control	no	no	no
Frequency, kHz	1000	1000	1000
Ishutdown, µA	1.1	1.1	1.1
Isupply, mA	0.98	0.98	0.98
Max Number of LEDs	1	1	1
Monolithic	yes	yes	yes
Number of Outputs	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85
Output Current, A	0.4	0.4	0.4
Synchronous	no	no	no
Topology	Charge Pump, LED Driver	Charge Pump, LED Driver	Charge Pump, LED Driver
Vin Max, V	4.5	4.5	4.5
Vin Min, V	2.9	2.9	2.9
Vout Max, V	5.3	5.3	5.3

Eco Plan

	LTC3218EDDB#PBF	LTC3218EDDB#TRMPBF	LTC3218EDDB#TRPBF
RoHS	Compliant	Compliant	Compliant

Articles

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Single-Wire Camera LED Charge Pump Allows Multiple Output Current Levels With Single-Resistor Programmability &mdash LT Journal
PDF, 226 Kb, File published: Oct 16, 2007
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DESIGN IDEASвЂ‰L Single-Wire Camera LED Charge
Pump Allows Multiple Output
Current Levels With Single-Resistor
Programmability
by Mohammed H. Jafri
Introduction
time, the LTC3218 features a built-in
timer. This timer shuts down the part
if it has been enabled in flash-mode
(ENF = HIGH) for more than 2 seconds.
The timer is reset by bringing the part
into shutdown and re-enabling it. ENT ILED LOW LOW SHUTDOWN LOW HIGH 1029/RSETT HIGH LOW 2965/RSETF HIGH HIGH 3993/RSETF Linear Technology Magazine October 2007 90 Multiple Current Ratios
LED drivers often use external resistors to program LED current. The LED
current is related to the programming
resistor current through a fixed ratio.
By employing multiple current ratios,
the LTC3218 can be programmed for 80
70
60
50mA
150mA
300mA 50
40 …

Model Line

Series: LTC3218 (3)

LTC3218EDDB#PBF LTC3218EDDB#TRMPBF LTC3218EDDB#TRPBF

Manufacturer's Classification

Power Management > Inductorless (Charge Pump) DC/DC Converters > Inductorless (Charge Pump) LED Drivers

Slices

Microcontrollers