stc3117

Description

Gas gauge IC with battery charger control

Register Map

Name

Address

Type

Access

Default

Description

MODE

0x00

uint8

RW

0x00

Mode register

CTRL

0x01

uint8

RW

0x00

Control and status register

SOC

0x02

uint16

RW

0x0000

Battery SOC (LSB = 1/512 %)

COUNTER

0x04

uint16

R

0x0000

Number of conversions

CURRENT

0x06

uint16

R

0x0000

Battery current

VOLTAGE

0x08

uint16

R

0x0000

Battery voltage (LSB = 2.2 mV)

TEMPERATURE

0x0A

uint8

R

0x00

Temperature in degrees C (LSB = 1deg C )

AVG_CURRENT

0x0B

uint16

RW

0x0000

Battery average current or SOC change rate

OCV

0x0D

uint16

RW

0x0000

OCV register (LSV = 0.55 mV)

CC_CNF

0x0F

uint16

RW

0x018B

Battery average current or SOC change rate

VM_CNF

0x11

uint16

RW

0x0141

Voltage gas gauge algorithm parameter

ALARM_SOC

0x13

uint8

RW

0x02

SOC alarm level in (LSB = 0.5%)

ALARM_VOLTAGE

0x14

uint8

RW

0xAA

Battery low voltage alarm level (LSB = 17.6 mV)

CURRENT_THRES

0x15

uint8

RW

0x0A

Current threshold for current monitoring (LSB = 47.04 uV )

CMONIT_COUNT

0x16

uint8

R

0x78

Current monitoring counter

CMONIT_MAX

0x17

uint8

RW

0x78

Maximum counter value for current monitoring

ID

0x18

uint8

R

0x16

Part type ID = 16h

CC_ADJ

0x1B

uint16

R

0x0000

Coulomb counter adjustment register

VM_ADJ

0x1D

uint16

R

0x0000

Voltage mode adjustment register

Registers

MODE

Address:

[0x00]

Mode register

Bit

7

6

5

4

3

2

1

0

Field

FORCE_VM

FORCE_CC

GG_RUN

ALM_ENA

FORCE_CD

BIBATD_PU

VMODE

Flags

VMODE:

Power saving voltage mode

BIBATD_PU:

BATD internal pull-up enable

FORCE_CD:

Force CD output high

ALM_ENA:

Enable Alarm function

GG_RUN:

creates a flag at bit 1 of the DUMMY register

FORCE_CC:

Force the relaxation timer to switch to the Coulomb counter (CC) state

FORCE_VM:

Force the relaxation timer to switch to voltage mode (VM) state

CTRL

Address:

[0x01]

Control and status register

Bit

7

6

5

4

3

2

1

0

Field

CTRL

SOC

Address:

[0x02]

Battery SOC (LSB = 1/512 %)

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

SOC:

Battery SOC (LSB = 1/512 %)

COUNTER

Address:

[0x04]

Default:

[0x0000]

Number of conversions

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

COUNTER:

Number of conversions

CURRENT

Address:

[0x06]

Default:

[0x0000]

Battery current

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

CURRENT:

Battery current

VOLTAGE

Address:

[0x08]

Default:

[0x0000]

Battery voltage (LSB = 2.2 mV)

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

VOLTAGE:

Battery voltage (LSB = 2.2 mV)

TEMPERATURE

Address:

[0x0A]

Default:

[0x00]

Temperature in degrees C (LSB = 1deg C )

Bit

7

6

5

4

3

2

1

0

Field

Fields

TEMPERATURE:

Temperature in degrees C (LSB = 1deg C )

AVG_CURRENT

Address:

[0x0B]

Default:

[0x0000]

Battery average current or SOC change rate

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

AVG_CURRENT:

Battery average current or SOC change rate

OCV

Address:

[0x0D]

Default:

[0x0000]

OCV register (LSV = 0.55 mV)

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

OCV:

OCV register (LSV = 0.55 mV)

CC_CNF

Address:

[0x0F]

Default:

[0x018B]

Battery average current or SOC change rate

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

CC_CNF:

Battery average current or SOC change rate

VM_CNF

Address:

[0x11]

Default:

[0x0141]

Voltage gas gauge algorithm parameter

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

VM_CNF:

Voltage gas gauge algorithm parameter

ALARM_SOC

Address:

[0x13]

Default:

[0x02]

SOC alarm level in (LSB = 0.5%)

Bit

7

6

5

4

3

2

1

0

Field

Fields

ALARM_SOC:

SOC alarm level in (LSB = 0.5%)

ALARM_VOLTAGE

Address:

[0x14]

Default:

[0xAA]

Battery low voltage alarm level (LSB = 17.6 mV)

Bit

7

6

5

4

3

2

1

0

Field

Fields

ALARM_VOLTAGE:

Battery low voltage alarm level (LSB = 17.6 mV)

CURRENT_THRES

Address:

[0x15]

Default:

[0x0A]

Current threshold for current monitoring (LSB = 47.04 uV )

Bit

7

6

5

4

3

2

1

0

Field

Fields

CURRENT_THRES:

Current threshold for current monitoring (LSB = 47.04 uV )

CMONIT_COUNT

Address:

[0x16]

Default:

[0x78]

Current monitoring counter

Bit

7

6

5

4

3

2

1

0

Field

Fields

CMONIT_COUNT:

Current monitoring counter

CMONIT_MAX

Address:

[0x17]

Default:

[0x78]

Maximum counter value for current monitoring

Bit

7

6

5

4

3

2

1

0

Field

Fields

CMONIT_MAX:

Maximum counter value for current monitoring

ID

Address:

[0x18]

Default:

[0x16]

Part type ID = 16h

Bit

7

6

5

4

3

2

1

0

Field

Fields

ID:

Part type ID = 16h

CC_ADJ

Address:

[0x1B]

Default:

[0x0000]

Coulomb counter adjustment register

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

CC_ADJ:

Coulomb counter adjustment register

VM_ADJ

Address:

[0x1D]

Default:

[0x0000]

Voltage mode adjustment register

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Field

Fields

VM_ADJ:

Voltage mode adjustment register