ISL6291 Datasheet, PDF (10/11 Pages) Intersil Corporation – Li-ion/Li Polymer Linear Battery Charger

Battery Removal Detection
The ISL6291 assumes that the thermistor is co-packed with
the battery and is removed together with the battery. When
the ISL6291 sees a voltage of 2.1V or higher on the TEMP
pin, it assumes that the battery is removed. When the battery
is removed, the charger stops and indicates a fault signal. A
new charge cycle starts when a battery is inserted again.
Output Capacitor C_OUT
C_OUT is typically a 10µF Tantalum capacitor if the charger is
required to operate with no battery attached. For embedded
battery applications, there is no requirement for a capacitor if
the battery is placed close enough to the charger output. It is
recommended, however, that the charger have at least a
0.1uF ceramic capacitor at the charger output for decoupling
purposes.
Input Capacitor C_IN
C_IN is typically a 10µF Tantalum capacitor or 1µF Ceramic
capacitor.
Stability
The charger is stable with a wide range of external
components, including the typical external components.
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FN9102.2
May 2, 2005