LT3468ES5 Linear Technology Corporation, LT3468ES5 Datasheet

LT3468ES5

Manufacturer Part Number

LT3468ES5

Description

Manufacturer

Linear Technology Corporation

Datasheets

1.LT3468ES5-TRPBF.pdf (12 pages)

2.LT3468ES5.pdf (12 pages)

3.LT3468ES5.pdf (12 pages)

Specifications of LT3468ES5

Case

SOT-153

Date_code

2008+

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3468ES5

Manufacturer:

Quantity:

10 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT3468ES5

Manufacturer:

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT3468ES5#TRMPBF

Manufacturer:

LINEAR/凌特

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3468ES5#TRPBF

Manufacturer:

Quantity:

500

Company:

BOSTOCK HK LIMITED

Part Number:

LT3468ES5#TRPBF

Manufacturer:

LINEAR

Quantity:

2 834

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT3468ES5#TRPBF

Manufacturer:

LINEAR/凌特

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3468ES5-1

Manufacturer:

Quantity:

10 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT3468ES5-1#TRMPBF

Manufacturer:

LINEAR/凌特

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LT3468ES5-1#TRPBF

Manufacturer:

LINEAR/凌特

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LT3468ES5-2

Manufacturer:

Quantity:

10 000

Current page: 1 of 12
Download datasheet (450Kb)

FEATURES

■

TYPICAL APPLICATIO

APPLICATIO S

■

Highly Integrated IC Reduces Solution Size

Uses Small Transformers:

Fast Photoflash Charge Times:

Controlled Input Current:

Supports Operation from Single Li-Ion Cell, or Any

Supply from 2.5V up to 16V

Adjustable Output Voltage

No Output Voltage Divider Needed

Charges Any Size Photoflash Capacitor

Low Profile (<1mm) SOT-23 Package

Digital / Film Camera Flash

PDA / Cell Phone Flash

Emergency Strobe

5.8mm × 5.8mm × 3mm

4.6s for LT3468 (0V to 320V, 100µF, V

5.7s for LT3468-2 (0V to 320V, 100µF, V

5.5s for LT3468-1 (0V to 320V, 50µF, V

500mA (LT3468)

375mA (LT3468-2)

225mA (LT3468-1)

DANGER HIGH VOLTAGE – OPERATION BY HIGH VOLTAGE

2.5V TO 8V

CHARGE

DONE

V IN

High Efficiency 4mm Tall Transformer

100k

LT3468 Photoflash Charger Uses

TRAINED PERSONNEL ONLY

4.7µF

DONE

CHARGE

LT3468

GND

1:10.2

= 3.6V)

346812 TA01

100µF

320V

DESCRIPTIO

The LT

ICs designed to charge photoflash capacitors in digital and

film cameras. A patented control technique* allows for the

use of extremely small transformers. Each device contains

an on-chip high voltage NPN power switch. Output voltage

detection* is completely contained within the device,

eliminating the need for any discrete zener diodes or

resistors. The output voltage can be adjusted by simply

changing the turns ratio of the transformer. The LT3468

has a primary current limit of 1.4A, the LT3468-2 has a 1A

limit, and the LT3468-1 has a 0.7A limit. These different

current limit levels result in well controlled input currents

of 500mA for the LT3468, 375mA for the LT3468-2 and

225mA for the LT3468-1. Aside from the differing current

limit, the three devices are otherwise equivalent.

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

LT3468 series of parts are available in tiny low profile

(1mm) SOT-23 packages.

ThinSOT is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

*Protected by U.S. Patents, including 6518733.

, LTC and LT are registered trademarks of Linear Technology Corporation.

LT3468/LT3468-1/LT3468-2

3468/LT3468-1/LT3468-2 are highly integrated

Photoflash Capacitor

CURRENT

AVERAGE

Chargers in ThinSOT

50V/DIV

1A/DIV

INPUT

OUT

LT3468 Charging Waveform

= 3.6V

= 100µF

1s/DIV

3468 G01

346812fa

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