LT3420EMS#PBF Xenon Photoflash Charger by Analog Devices

Status: Production
Series: LT3420
RoHS: Compliant
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The LT3420/LT3420-1 charge high voltage photoflash capacitors quickly and efficiently. Designed for use in both digital and film cameras, these devices use a flyback topology to achieve efficiencies up to four times better than competing flash modules. A 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.The LT3420/LT3420-1 output voltage sensing scheme* monitors the flyback voltage to indirectly regulate the output voltage, eliminating an output resistor divider or discrete zener diode. This feature allows the capacitor to be held at a fully charged state without excessive power consumption. Automatic refresh (which can be defeated) allows the capacitor to remain charged while consuming an average input current of about 2mA, at a user-defined refresh rate. A logic high on the CHARGE pin initiates charging, while the DONE pin signals that the capacitor is fully charged.The LT3420/LT3420-1 are available in 10-Lead MSOP and (3mm × 3mm) DFN packages.*Protected by U.S. Patents including 6518733.

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Prices starting from US$3.82

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Features

Charges 220µF to 320V in 3.7 Seconds from 5V (LT3420)
Charges 100µF to 320V in 3.5 Seconds from 5V (LT3420-1)
Charges Any Size Photoflash Capacitor
Supports Operation from Two AA Cells or Any Supply from 1.8V to 16V
Controlled Peak Switch Current:
1.4A (LT3420)
1.0A (LT3420-1)
Controlled Input Current:
840mA (LT3420)
450mA (LT3420-1)
Uses Standard Transformers
Efficient Flyback Operation (>75% Typical)
Adjustable Output
Automatic Refresh
Charge Complete Indicator
No High Voltage Zener Diode Required
No Output Voltage Divider Required
Small 10-Lead MSOP Package
Small 10-Lead (3mm × 3mm) DFN Package

Last 6 months Inventory & Pricing History


Alternative Descriptions

Photoflash Cap Chrs w/ Auto Re | Analog Devices
Capacitor Charger, Photoflash, Msop-10 | Newark Electronics
CAPACITOR CHARGER, PHOTOFLASH, MSOP-10 | element14
Photo Flash Charger 10-Pin MSOP Tube | Richardson RFPD


LT3420EMS#PBF Special Function by Linear Technology

IC CAPACITOR CHARGER SMD MSOP10

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

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
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 3420
Brief Features Charges any Size Photoflash Capacitor Charges 220µF to 320V in 3.7 Seconds from 5V
Device Type Power
Driver Case Style MSOP
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +85°C
Output Current 1.4A
Output Voltage Max 38V
Supply Voltage Range 1.8V to 16V
Termination Type Surface Mount Device

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3420EMS#PBF?

Additional datasheets, footprints and schematics for LT3420EMS#PBF are listed on our Part Details page. You can also find images and similar parts to LT3420EMS#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LT3420EMS#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LT3420EMS#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LT3420EMS#PBF fall under?

The LT3420EMS#PBF is listed under Xenon Photoflash Charger.

Can I view similar or alternative parts?

You can view similar parts to LT3420EMS#PBF when available in the Xenon Photoflash Charger range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LT3420EMS#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT3420EMS#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LT3420EMS#PBF have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Richardson RFPD and Farnell have stock available or on a lead time for LT3420EMS#PBF.

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