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Datasheets:
A8480: Boost Regulator for Display Bias or LED Driver (PDF)
Selection Guides:
Power Management ICs: Display Power and Backlight
Product Evaluation Kits:
APEK8480EEJ-01 Evaluation Board
The A8480 is a 1.2 MHz optimized boost converter with internal soft-start and compensation to support WLED, flash/torch, and display bias applications. The input voltage range of 2.7 to 9 V supports either 1 or 2 Li-ion battery applications. The high voltage integrated double-diffused MOSFET (DMOS) allows output voltages as high as 23 V with a switch current limit of 1.5 A, this increases the maximum quantity of LEDs that can be used in series.
To maximize battery life in the application, the output can be completely disconnected from the battery voltage to virtually eliminate leakage current in the system. For system protection, the A8480 has internal overtemperature and overvoltage protection.
The A8480 is available in both 1.6 mm × 1.6 mm, 0.5 mm nominal height CSP, and 3 mm × 3 mm, 0.75 mm nominal height MLP/DFN packages.
| Part Number | Package Type | RoHS Compliant |
Part Composition/ RoHS Data |
Temperature | Comments | Samples | Distributor Stock |
|---|---|---|---|---|---|---|---|
| A8480ECGLT-T | 9-lead CSP | -- | -- | -40 °C to 85 °C | new | Due to warehouse relocation, samples will be unavailable until July 21, 2008. Contact your sales rep or purchase from distributor. | |
| A8480EEJTR-T | 10-lead MLP | Yes | view data | -40 °C to 85 °C | new | Due to warehouse relocation, samples will be unavailable until July 21, 2008. Contact your sales rep or purchase from distributor. |
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.