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API9221

Diodes
Part Number API9221
Manufacturer Diodes
Description Car/Wall or USB Supply Input Lithium Battery Charger
Published Jun 29, 2010
Detailed Description www.DataSheet4U.com API9221 Car/Wall or USB Supply Input Lithium Battery Charger with OVP USB Bypass and 10mA LDO Desc...
Datasheet PDF File API9221 PDF File

API9221
API9221

Overview
www.
DataSheet4U.
com API9221 Car/Wall or USB Supply Input Lithium Battery Charger with OVP USB Bypass and 10mA LDO Description The API9221 has two supply inputs for highly integrated portable applications, enabling charging from a USB host, wall adapter, or car adapter.
The PPR pin indicates to a host controller that a safe and valid supply is connected to either VUSB or VDC.
The higher charge current option from VDC will take priority if both supplies are connected.
The host controller can control the state of charging via the enable pin EN .
The API9221 implements the constant current/constant voltage (CC/CV) charge algorithm for Lithium based battery cells.
The connected cell will be charged to 4.
2V with an accuracy of 1% over the entire temperature range.
The termination current is programmable via an external resistor, RIMIN.
The CHG pin indicates when the termination current is reached, and is reset by EN , power off, or battery below 3.
9V.
The maximum charge current can be prog...


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