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| Numéro de série | AAT2806IXN-4.5-T1 |
| Categorie | Power Management => Regulators |
| Description | Charge Pumps (Switched Capacitor Regulators)
The AAT2806 is a dual charge pump designed to
support both the white LED backlight and flash applications
for systems operating with lithium-ion/polymer
batteries. The backlight charge pump is capable
of driving up to four LEDs at a total of 80mA. The current
sinks may be operated individually or in parallel
for driving higher current LEDs. To maximize power
efficiency, the charge pump operates in 1X, 1.5X, or
2X mode, where the mode of operation is automatically
selected by comparing the forward voltage of
each LED with the input voltage. AnalogicTech's
S2Cwire™ (Simple Serial Control™) serial digital
input is used to enable, disable, and set current for
each LED with an eight-level logarithmic scale plus
four low-current settings down to 50μA for optimized
efficiency, with a typical operating quiescent current
of less than 50μA. |
| Société | Analogic Corporation
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