6

Control pin description

PG

Power-Good open-drain, active high-z output pin. It provides the status about OUT valid voltage based. If OUT

voltage is higher than VBAT_CONN (4.1 V) then the pin goes to high-z. It is pulled down if OUT voltage is lower

VBAT_CONN (4.1 V). It requires an external pull-up resistor connected to VOUT.

CHGINOK

Input voltage source Power Good pin. It goes to high-z when the input voltage source is not valid. Logic negate.

VSET0,1

Set the floating battery voltage value. They can be tied to CHGIN or GND thus determining four different settings.

ISET0,1

Set the charging current. They can be tied to CHGIN or GND thus determining four different settings.

PKM

Peak mode input. It allows reducing battery shutdown threshold from normal operating mode to lower threshold

level. This enables the application to temporarily support load peak current that could otherwise generate false

battery shutdown detection.

SM

Shelf-mode activation pin. Active high input with internal pull-down resistor to reduce external components. When

high, the device enters shelf-mode. Block diagram.

Figure 9. STBC15 block diagram

STBC15

Control pin description

DS12551 - Rev 1

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