STBC21 datasheet(48/54 Pages) STMICROELECTRONICS

48 / 54 page

Charger, battery and alarm status registers

STBC21

48/54

Doc ID 023256 Rev 1

Table 43.

Address: 13H, Reset state: 00000000

Bit

Name

Read/Write

Function

B7 (MSB)

customer_en

Read/Write

1: Enable customer functions; 0: Disable

Read/Write

0: Charger enabled (default value); 1: Charger

disabled.

Reserved

SW_chrg_alarm

Read

1: Digital charger alarm during IDLE.

SW_chrg_status

Read

Digital charger status (see

Table 44).

Read

B0 (LSB)

Read

Table 44.

Digital charger status

000

IDLE

001

Battery detection (force)

010

Battery detection (1st)

011

Pre-charge

100

Fast-charge

101

Safe-charge

110

Battery detection (2nd)

111

Termination

Table 45.

Address: 14H, Reset state: 00000000

Bit

Name

Read/Write

Function

B7 (MSB)

Batt_temp_range

Read

Battery temperature range (see

Table 46)

Read

Reserved

Iset2_half

Read

1: Iset2 (fast-charge current) set to 50%

Vfloat_05

Read

1: Vfloat set to 4.05 V

Vfloat_10

Read

1: Vfloat set to 4.10 V

B0 (LSB)

Vfloat_20

Read

1: Vfloat set to 4.20 V

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