Low

LINEAR TECHNOLOGY  LT3420EMS#PBF  Special Function IC, Photoflash Capacitor Charger with Automat Refresh, 1.8 V to 16 V in, MSOP-10

LINEAR TECHNOLOGY LT3420EMS#PBF
Manufacturer Part No:
LT3420EMS#PBF
Order Code:
1273497
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT3420EMS#PBF is a Photoflash Capacitor Charger with automatic refresh charges high voltage photoflash capacitors quickly and efficiently. Designed for use in both digital and film cameras, it uses a flyback topology to achieve efficiencies up to four times better than competing flash modules. An unique adaptive off-time control algorithm maintains current-limited continuous mode transformer operation throughout the entire charge cycle, eliminating the high inrush current often found in modules. This feature allows the capacitor to be held at a fully charged state without excessive power consumption. Automatic refresh allows the capacitor to remain charged while consuming an average input current of about 2mA, at an user-defined refresh rate. Logic high on the CHARGE pin initiates charging, while the DONE pin signals that the capacitor is fully charged.
  • Charges 220µF to 320V in 3.7 seconds from 5V
  • Charges any size photoflash capacitor
  • Supports operation from two AA cells or any supply from 1.8 to 16V
  • 1.4A Controlled peak switch current
  • 840mA Controlled input current
  • Uses standard transformers
  • >75% Typical efficient flyback operation
  • Adjustable output
  • Automatic refresh
  • Charge complete indicator
  • No high voltage Zener diode required
  • No output voltage divider required

Product Information

IC Function:
Photoflash Capacitor Charger with Automatic Refresh
Supply Voltage Min:
1.8V
Supply Voltage Max:
16V
IC Package Type:
MSOP
No. of Pins:
10Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

Find similar products  grouped by common attribute

Applications

  • Imaging, Video & Vision
  • Consumer Electronics
  • Power Management

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423190
Weight (kg):
.0001

Associated Products

Similar Products