L9918 datasheet(54/109 Pages) STMICROELECTRONICS

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NVM register name

Definition

Notes

Description

#Bits Code

HTK_SLOPE

0x3

Setpoint value ramp down in case of thermal

compensation

slope = -200.0 mV/°C

0x4

slope = -250.0 mV/°C

0x5

slope = -300.0 mV/°C

0x6

slope = -350.0 mV/°C

0x7

slope = -400.0 mV/°C

0x8

slope = -450.0 mV/°C

0x9

slope = -500.0 mV/°C

0xA

slope = -550.0 mV/°C

0xB

slope = -600.0 mV/°C

0xC

slope = -650.0 mV/°C

0xD

slope = -700.0 mV/°C

0xE

reserved

0xF

reserved

G_HT

0x0

50 mV/s

Setpoint transition gradient in case of thermal

compensation

0x1

25 mV/s

0x2

12.5 mV/s

0x3

6.25 mV/s

U_FELD_AUS

0x0

16.5 V

Overvoltage function threshold

0x1

17.0 V

0x2

17.5 V

0x3

18.0 V

U_FELD_AUS_TIME

0x0

520 µs

Filter time of overvoltage function threshold

0x1

780 µs

0x2

1040 µs

0x3

OV detection deactivated

U_FELD_EIN

0x0

8.75 V

Low voltage function threshold

0x1

9.25 V

0x2

9.75 V

0x3

10 V

0x4

10.25 V

0x5

10.5 V

0x6

11 V

0x7

PSA

U_FELD_EIN_TIME

0x0

520 µs

Filter time of low voltage function threshold

0x1

780 µs

0x2

1040 µs

0x3

1200 µs

PRIORITY_CH_DIS

0x0

enable

Enable/Disable Low voltage function

0x1

disable

L9918

NVM parameters table

DS13000 - Rev 2

page 54/109

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