A8426Robust xenon flash solutions for a wide range of cameras. Its wide battery voltage specifications allow designers to use general-purpose devices using 2 or 4 alkaline batteries and 1 or 2 lithium-ion batteries for cameras. It features a 55 V rated integrated power switch that provides ample design margin, including a 2-cell Li-ion battery design.
The A8426 has a flexible current limit scheme. The current limit is set by ISET's external resistors, allowing designers to optimize their camera performance. The A8426 also has open and short circuit protection on the ISET pins. After setting the current limit, the designer can choose to program the percentage of the set current through a single-wire interface or through the charging pin.
The A8426 features an integrated, flexible IGBT gate driver with separate source- and sink pins.
The A8426 is available in a 16-connector 3 mm × 3 mm MLP/TQFN package. This small, low-profile (0.75 mm) package is ideal for applications where space is at a premium. The package is lead (Pb) free and features 100% matte tin leadframe plating.
- Wide battery voltage range: 1.5 to 11 V
- Low quiescent current consumption (up to 1 μA in shutdown mode)
- Flexible current limit:
- External resistor sets default current (0.7 to 1.5 A)
- The single-wire current limit can optionally be programmed via the charge pin
- Durable and compact design:
- Integrated 55 V DMOS switch
- ISET break/short circuit protection
- Circuit breaker/secondary winding protection
- 3 mm × 3 mm packages
- Charging completion indication
- Flexible IGBT driver with separate sink and source pins