EUP8092
Pin Configurations
Package Type
Pin
Configurations
TDFN-10
Pin Description
PIN
VIN
FAULT
STATUS
TIME
GND
EN
V2P8
IREF
TEMP
VBAT
TDFN-10
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
VIN is the input power source. Connect to a wall adapter.
FAULT is an open-drain output indicating fault status. This pin is pulled to LOW under
any fault conditions.
STATUS is an open-drain output indicating charging and inhibit states. The STATUS
pin is pulled LOW when the charger is charging a battery.
The TIME pin determines the oscillation period by connecting a timing capacitor
between this pin and GND.
The oscillator also provides a time reference for the charger.
GND is the connection to system ground.
EN is the enable logic input. Connect the EN pin to LOW to disable the charger or leave
it floating to enable the charger.
This is a 2.8V reference voltage output. This pin outputs a 2.8V voltage source when the
input voltage is above POR threshold and outputs zero otherwise. The V2P8 pin can be
used as an indication for adapter presence.
This is the programming input for the constant charging current.
TEMP is the input for an external NTC thermistor. The TEMP pin is also used for
battery removal detection.
VBAT is the connection to the battery. Typically a 1µF Tantalum capacitor is needed
for stability when there is no battery attached. When a battery is attached, only a 0.1µF
ceramic capacitor is required.
DS8092
Ver 0.2 July 2008
3
EUTECH [ EUTECH MICROELECTRONICS INC ]
