Pin configuration

STC4054

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2

Pin configuration

Figure 2.

Pin connections (top view)

Table 1.

Pin description

Pln N°

Symbol

Note

1

CHRG

Open Drain. This pin goes in low impedance when the STC4054 is in precharge or

charge mode

2

GND

Ground pin

3BAT

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

5

PROG

Charge current program. Charge Current monitor and Shutdown pin

Figure 3.

Application circuit