EUP8092X
Pin Configurations
Package Type
Pin
Configurations
Package Type
Pin
Configurations
EUP8092A.B.C
TDFN-10
EUP8092D
TDFN-10
Pin Description
PIN
VIN
FAULT
STATUS
TIME
GND
EN
V2P8
IREF
VSEN
TEMP
VBAT
A
1
2
3
4
5
6
7
8
9
-
10
B
1
2
3
4
5
6
7
8
9
-
10
C
1
2
3
4
5
6
7
8
9
-
10
D
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.
VSEN is the remote voltage sense pin. Connect this pin as close to the
battery positive terminal as possible. If the VSEN pin is left floating, its
voltage drops to zero volt and the charger operates in trickle mode.
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.
DS8092X Ver 0.1 May 2008
3
EUTECH [ EUTECH MICROELECTRONICS INC ]
