Datasheet

2 Pin configuration
Figure 2. Pin connection (top view)
Table 1.
Pin description
Pin Symbol Notes
1 BAT
This pin provides an accurate output voltage of 4.2 V and the charge current to the
battery. Only 2 µA reverse current can flow to the device when it is in shutdown mode.
2 POWER ON
Open drain. When the STBC08 detects an undervoltage lockout condition or when the
external adapter provides an input voltage higher than 7.2 V or less than the battery
voltage, POWER ON goes to high impedance state.
3 CHRG
Open drain. This pin goes to low impedance when the STBC08 is in pre-charge or
charge mode.
4 GND Ground pin.
5 PROG
Charge current program, charge current monitor and shutdown pin. The current
limitation is programmed using R
PROG
tolerance of 1% between PROG pin and GND.
6
V
CC
Input supply voltage. The input range goes from 4.25 to 6.5 V.
If V
CC
< V
BAT
+ 30 mV the device enters shutdown mode and the sinked I
BAT
is less
than 2 µA.
7 Exposed pad Connected to GND or left floating.
Figure 3. Application circuit
STBC08
Pin configuration
DS4901 - Rev 4
page 3/20