A8724EEJTR-T

A8724EEJTR-T Datasheet

Allegro | Product | A8724 Photoflash Capacitor Charger with Flexible Current Limit and 55 V Power DM... Page 1 of 2

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A8724EEJTR-T	A8724EEJTR-T (pdf)

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Allegro \| Product \| A8724 Photoflash Capacitor Charger with Flexible Current Limit and 55 V Power DM... Page 1 of 2 Home / Products / Part Numbers / A8724 A8724 Photoflash Capacitor Charger with Flexible Current Limit and 55 V Power DMOS Switch Data sheet z Contact Allegro Marketing z Wide battery voltage range to 11 V z Low quiescent current draw 1 µA max in shutdown mode z Flexible current limit: External resistor sets default current to A Optional single-wire current limit programming through CHARGE pin z Rugged and compact design Integrated 55 V DMOS switch ISET open/short protection Open diode/secondary winding protection 3 mm x 3 mm footprint z Charge Complete indication z Flexible IGBT driver with separate sink and source z Digital and film camera flash z Digital video camera flash The A8724 provides a robust Xenon photoflash solution for a wide range of cameras. Its wide battery voltage specifications allow designers to use a common device for camera using 2 or 4 cell Alkaline batteries as well as 1 or 2 cell Lithium ion batteries. Its 55 V rated integrated power switch provides ample design margin, even for the 2 cell Lithium ion battery designs. The A8724 features a flexible current limit scheme. The current limit is set by an external resistor at ISET, allowing designers to optimize the camera performance. The A8724 is protected against open circuit and short circuit condition on the ISET pin. Once the current limit is set, it can be optionally programmed as a percentage of the set current through a single wire interface, through the CHARGE pin. The A8724 features an integrated flexible IGBT gate driver, with independent source and sink pins. The A8724 is available in a 10-contact 3 mm x 3 mm MLP/ TDFN package. This small, low profile mm package is ideal for space-constrained applications. It is lead Pb free, with 100% matte-tin leadframe plating. Application Circuit Complete Part Numbers RoHS Part Composition/ Part Number Package Type Compliant RoHS Data Temperature Comments Samples Distributor Stock A8724EEJTR-T 10-lead MLP Yes view data -40 °C to 85 °C new Contact Local Sales Representative or check distributor stock 9/14/2009 Allegro \| Product \| A8724 Photoflash Capacitor Charger with Flexible Current Limit and 55 V Power DM... Page 2 of 2 Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system. Copyright 2009 Allegro MicroSystems, Inc. • 115 Northeast Cutoff, Worcester, MA 01606 USA • Phone • Fax: 9/14/2009

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Allegro | Product | A8724 Photoflash Capacitor Charger with Flexible Current Limit and 55 V Power DM... Page 1 of 2

Home / Products / Part Numbers / A8724

A8724 Photoflash Capacitor Charger with Flexible Current Limit and 55 V Power DMOS Switch

Data sheet
z Contact Allegro Marketing
z Wide battery voltage range to 11 V z Low quiescent current draw 1 µA max in shutdown mode z Flexible current limit:

External resistor sets default current to A Optional single-wire current limit programming through CHARGE pin z Rugged and compact design Integrated 55 V DMOS switch ISET open/short protection Open diode/secondary winding protection 3 mm x 3 mm footprint z Charge Complete indication z Flexible IGBT driver with separate sink and source
z Digital and film camera flash z Digital video camera flash

The A8724 provides a robust Xenon photoflash solution for a wide range of cameras. Its wide battery voltage specifications allow designers to use a common device for camera using 2 or 4 cell Alkaline batteries as well as 1 or 2 cell Lithium ion batteries. Its 55 V rated integrated power switch provides ample design margin, even for the 2 cell Lithium ion battery designs.

The A8724 features a flexible current limit scheme. The current limit is set by an external resistor at ISET, allowing designers to optimize the camera performance. The A8724 is protected against open circuit and short circuit condition on the ISET pin. Once the current limit is set, it can be optionally programmed as a percentage of the set current through a single wire interface, through the CHARGE pin.

The A8724 features an integrated flexible IGBT gate driver, with independent source and sink pins.

The A8724 is available in a 10-contact 3 mm x 3 mm MLP/ TDFN package. This small, low profile mm package is ideal for space-constrained applications. It is lead Pb free, with 100% matte-tin leadframe plating.

Application Circuit

Complete Part Numbers

RoHS Part Composition/

Part Number Package Type Compliant RoHS Data

Temperature Comments

Samples

Distributor Stock

A8724EEJTR-T 10-lead MLP Yes
view data
-40 °C to 85 °C new

Contact Local Sales Representative or check distributor stock
9/14/2009

Allegro | Product | A8724 Photoflash Capacitor Charger with Flexible Current Limit and 55 V Power DM... Page 2 of 2

Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.

Copyright 2009 Allegro MicroSystems, Inc.
• 115 Northeast Cutoff, Worcester, MA 01606 USA
• Phone
• Fax:
9/14/2009

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived A8724EEJTR-T Datasheet file may be downloaded here without warranties.

Datasheet ID: A8724EEJTR-T 516089