MPF42791 datasheet(63/75 Pages) MPS

63 / 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.

SOH_LRN_

DMAX,

0x14C1

If SOH_LRN_EN is enabled, these bits set

the maximum increase for SOH learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.1%

0% to

25.5%

SOH_LRN_

DMIN,

0x14C2

If SOH_LRN_EN is enabled, these bits set

the maximum decrease for SOH learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.1%

0% to

25.5%

SOH_LRN_

MAX,

0x14C3

If SOH_LRN_EN is enabled, these bits set

the maximum value for SOH learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1%

110%

100% to

200%

SOH_LRN_MIN,

0x14C4

If SOH_LRN_EN is enabled, these bits set

the minimum value for SOH learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1%

80%

0% to 100%

SOH_LRN_

TMAX,

0x14C5

If SOH_LRN_EN is enabled, these bits set

the

maximum

temperature

for

SOH

learning

8, [7:0]

R/W

8-bit signed, 2-comp

integer

LSB = 1°C

30°C

-128°C to

+127°C

SOH_LRN_

TMIN,

0x14C6

If SOH_LRN_EN is enabled, these bits set

the minimum temperature for SOH learning

8, [7:0]

R/W

8-bit signed, 2-comp

integer

LSB = 1°C

10°C

-128°C to

+127°C

SOH_LRN_

IMIN,

0x14C7

If SOH_LRN_EN is enabled, these bits set

the minimum current for SOH learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.01 C-rate

0.1 C-rate

0 C-rate to

2.55 C-rate

SOH_LRN_

IMAX,

0x14C8

If SOH_LRN_EN is enabled, these bits set

the maximum current for SOH learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.01 C-rate

2 C-rate

0 C-rate to

2.55 C-rate

RESR_LRN_

DITH,

0x1540

Sets the minimum current variation for

equivalent series resistance learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.01 C-rate/s

0.5 C-rate/s

0 C-rate/s

to 2.55 C-

rate/s

RESR_LRN_

DRSTD,

0x1541

Sets the maximum (standard) resistance

variation for ESR learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.1%

2.5%

0% to

25.5%

RESR_LRN_DR

EXT,

0x1542

Sets the maximum (extended) resistance

variation for ESR learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.1 %

10%

0% to

25.5%

RESR_LRN_NHI

T2EXT,

0x1543

Sets the number of times the standard

resistance variation must be

reached

before using the extended resistance

variation for ESR learning.

4, [3:0]

R/W

8-bit unsigned integer

LSB = 1

0 to 8

RCXN_CELLS_

LRN_NAVG,

0x1580

Sets the number of events required for

pack connection resistance learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1 event

100

event(s)

1 to 255

event(s)

RCXN_CELLS_

LRN_DITH,

0x1581

Sets the current derivative threshold for

pack connection resistance learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.01 C-rate/s

0.5 C-rate/s

0 to 2.55 C-

rate/s

RCXN_CELLS_

LRN_RMIN,

0x1582

Sets the minimum resistance for pack

connection resistance learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1m

Ω to

255m

RCXN_CELLS_

LRN_RMAX,

0x1583

Sets the maximum resistance for pack

connection resistance learning.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1m

20m

Ω to

255m

HCONV_LRN_

0x15C0

Sets the heat transfer coefficient gain.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.1W/(m2 x K^2)

1W/(m2 x K^2)

0W/(m2 x K^2)

to 25.5W/

(m2 x K^2)

HCONV_LRN_

RNG,

0x15C1

Sets the heat transfer coefficient range.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 0.5%

10%

0% to 100%

HCONV_LRN_

DTIMETH,

0x15C2

Sets the heat transfer coefficient learning

time derivative threshold.

8, [7:0]

R/W

8-bit unsigned integer

LSB = 1s

10s

0s to 255s

MPF42791 Datasheet(PDF) 63 Page - Monolithic Power Systems

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