STBC21 Datasheet, PDF (48/54 Pages) STMicroelectronics – LI+ battery charger with thermal regulation

Charger, battery and alarm status registers
STBC21
Table 43. Address: 13H, Reset state: 00000000
Bit
Name
Read/Write
Function
B7 (MSB) customer_en
Read/Write 1: Enable customer functions; 0: Disable
B6
CE
Read/Write
0: Charger enabled (default value); 1: Charger
disabled.
B5
Reserved
B4
Reserved
B3
SW_chrg_alarm
Read
1: Digital charger alarm during IDLE.
B2
B1
B0 (LSB)
SW_chrg_status
Read
Read
Read
Digital charger status (seeTable 44).
Table 44. Digital charger status
000
001
010
011
100
101
110
111
IDLE
Battery detection (force)
Battery detection (1^st)
Pre-charge
Fast-charge
Safe-charge
Battery detection (2^nd)
Termination
Table 45. Address: 14H, Reset state: 00000000
Bit
Name
Read/Write
Function
B7 (MSB)
Read
B6
Batt_temp_range
Read
Battery temperature range (see Table 46)
B5
Read
B4
Reserved
B3
Iset2_half
B2
Vfloat_05
Read
Read
1: Iset2 (fast-charge current) set to 50%
1: Vfloat set to 4.05 V
B1
Vfloat_10
Read
1: Vfloat set to 4.10 V
B0 (LSB)
Vfloat_20
Read
1: Vfloat set to 4.20 V
48/54
Doc ID 023256 Rev 1