eta9640规格书

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eta9640规格书

The ETA9640 is a fully integrated power management unit
specifically designed for Power Bank, Mobile Charger, Backup
Battery Charger applications. It consists of a high efficiency
synchronous step-up boost converter and a linear battery
charger. The boost can provide up to 1A output current at 5V
of from a Li-Ion battery input voltage, while the charger can
charge up to 1A of current from an AC adapter input. The boost
incorporates circuits that disconnect the input from output,
during shutdown, short-circuit, output current overloading, or
other events when output is higher than the input. This not only
eliminates the need for an external MOSFET and its control
circuitry to disconnect the input from output, also provides
robust output overload protection. Using a patent pending
technique to drive the charger LED indicator, it eliminates the
need for a micro-controller normally needed in mobile
chargers. While saving the cost of a micro-controller, since
the whole units only consumes less than 100uA of quiescent
current during no load, when considering standby time for one
charge, it is a much superior solution comparing to the
traditional solution that needs a micro-controller which
normally consumes up to 1mA current.
ETA9640 is available in ESOP8 package.