STC4054 Datasheet, PDF (4/17 Pages) STMicroelectronics – 800mA Standalone linear Li-Ion Battery charger with thermal regulation

Pin configuration
2
Pin configuration
Figure 2. Pin connections (top view)
STC4054
Table 1.
Pln N°
1
2
3
4
5
Pin description
Symbol
Note
CHRG
GND
BAT
V_CC
PROG
Open Drain. This pin goes in low impedance when the STC4054 is in precharge or
charge mode
Ground pin
This pin provides an accurate 4.2V output voltage and the charge current to the battery.
Only 2µA reverse current can flow in to the device when in Shutdown mode
Input Supply voltage. The input range is from 4.25V to 6.5V. If V_CC<V_BAT+30mV the
device enters Shutdown mode and the sinked I_BAT is less than 2µA
Charge current program. Charge Current monitor and Shutdown pin
Figure 3. Application circuit
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