MPF42791 datasheet(61/75 Pages) MPS

61 / 75 page

MPF42791 – 2 TO 16 BATTERY PACK FG W/ R DETECTION AND THERMAL MODEL

MPF42791 Rev. 1.0

MonolithicPower.com

9/19/2022

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

NCELLS_SER,

0x1200

Sets the number of series-connected

cells in the battery pack.

5, [4:0]

R/W

8-bit unsigned integer

LSB = 1

2 to 16

NCELLS_PAR,

0x1201

Sets the number of parallel-connected

cells in the battery pack.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1

1 to 255

NTSS,

0x1202

Sets the number of temperature sensors

in the battery pack.

3, [2:0]

R/W

8-bit unsigned integer

LSB = 1

1 to 4

IDIS_AVG_SET,

0x1280

Sets the nominal average discharge

current (i.e. IDIS_AVG).

16, [15:0]

R/W

16-bit unsigned integer

LSB = 0.001 C-rate

1 C-rate

0.001 C-rate

to 65.535

C-rate

IDIS_END_SET,

0x1282

Sets the nominal discharge termination

current (i.e. IDIS_END).

16, [15:0]

R/W

16-bit unsigned integer

LSB = 0.001 C-rate

1 C-rate

0.001 C-rate

to 65.535

C-rate

ICHG_CC_SET,

0x12C0

Sets

the

nominal

charge

constant

current (i.e. ICHG_CC). It should be set

to the nominal current that applied by the

external charger to the battery pack

while in the charge CC region.

16, [15:0]

R/W

16-bit unsigned integer

LSB = 0.001 C-rate

0.5

C-rate

0.001 C-rate

to 65.535

C-rate

ICHG_END_

SET,

0x12C2

Sets the nominal charge termination

current (i.e. ICHG_END).

It should be set to the nominal current,

which is used to detect the end of charge

while in the charge CV region.

16, [15:0]

R/W

16-bit unsigned integer

LSB = 0.001 C-rate

0.1

C-rate

0.001 C-rate

to 65.535

C-rate

ICHG_END_

MRGN,

0x12C4

Sets the charge termination current (i.e.

ICHG_END_SET) margin.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.001 C-rate

0.005

C-rate

0 C-rate to

0.255 C-rate

VCHG_CV_SET,

0x12C5

Sets

the

nominal

charge

constant

voltage (i.e. VCHG_CV).

This value should be set to the nominal

voltage, which is applied to the battery

pack by the external charger during CV

charge.

16, [15:0]

R/W

16-bit unsigned integer

LSB = 2mV

66400mV

0mV to

131070mV

EMTY_RTIME_

FILTER,

0x1304

Sets the filter time constant for the

remaining

time-to-empty

(i.e.

EMTY_RTIME).

Increasing

EMTY_RTIME_FILTER

results in a smoother estimate at the

tradeoff of an increased phase delay.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1s

60s

0s to 255s

EMTY_DTEMP_

FILTER,

0x1305

Sets the filter time constant for the

predicted remaining time-to-empty (i.e.

EMTY_RTIME).

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1s

60s

0s to 255s

FULL_RTIME_

FILTER,

0x1345

Sets the filter time constant for the

remaining

time-to-full

(i.e.

FULL_RTIME).

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1s

60s

0s to 255s

FULL_DTEMP_

FILTER,

0x1346

Sets the filter time constant for the

predicted

temperature-to-full

(i.e.

FULL_DTEMP).

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1s

60s

0s to 255s

ICHG_CC_

LRN_RNG,

0x1380

If ICHG_CC_LRN_EN is enabled, these

bits set the charge CC (i.e. ICHG_CC)

learning range.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.5%

10%

0% to 100%

ICHG_CC_

LRN_SOCTH,

0x1381

Sets the SOC threshold for charge CC

learning (i.e. ICHG_CC).

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.5 %

80%

0% to 100%

ICHG_CC_

LRN_DITH,

0x1382

Sets

the

charge

current

derivative

threshold for charge CC learning (i.e.

ICHG_CC).

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.01 mA/s

0.1mA/s

0mA/s to

2.55mA/s

MPF42791 Datasheet(PDF) 61 Page - Monolithic Power Systems

MPF42791 Datasheet(HTML) 61 Page - Monolithic Power Systems

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75

Datasheet Download

Link URL