STBC02JR datasheet(24/39 Pages) STMICROELECTRONICS

24 / 39 page

Functional pin description

STBC02

24/39

DocID029261 Rev 2

6.15

SW_SEL

SW_SEL, serial SWIRE input pin. It is internally pulled down with a 500 kΩ resistor. In idle

state the SW_SEL pin must be held to ground. See table below for details.

Table 9: SWIRE programming

SW_SEL

pulse

number

Function

Status

Note

Power-on

SW1_OA,

SW2_OA

(default)

SW1_I is connected with SW1_OA and SW2_I is

connected with SW2_OA

SW1_OB,

SW2_OB

OFF

(default)

SW1_OB and SW2_OB are in high impedance (Hi-

SW1_OA

to OFF

to ON

SW1_OB

to OFF

to ON

SW2_OA

to OFF

to ON

SW2_OB

to OFF

to ON

BATMS

OFF

Battery monitor switch (default value)

BATMS ON

It increases battery leakage due to external resistor

divider RDIV1, RDIV2

IEND

IEND OFF

It disables EOC (end-of-charge signal). Charger

continues working even if IEND is reached

IEND 5%

IFAST

(default)

IEND stops the charger phase (default)

IEND 2.5%

IFAST

IEND stops the charger phase

IBAT OCP

900 mA

Overcurrent protection (battery discharge). Default

value

450 mA

250 mA

100 mA

VFLOAT

adjustment

OFF

Default value

+50 mV

VFLOAT increases 50 mV (whatever the programmed

value is)

+100 mV

VFLOAT increases 100 mV (whatever the

programmed value is)

+150 mV

VFLOAT increases 150 mV (whatever the

programmed value is)

+200 mV

VFLOAT increases 200 mV (whatever the

programmed value is)

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