VNF1048F datasheet(48/52 Pages) STMICROELECTRONICS

48 / 52 page

Contents

Block diagram and pin description .................................................2

Electrical specification.............................................................4

2.1

Absolute maximum ratings....................................................... 4

2.2

Thermal data .................................................................. 5

2.3

Main electrical characteristics .................................................... 6

eFuse function ...................................................................15

Self Test ..........................................................................17

4.1

Current Sense Self Test ....................................................... 17

4.2

External FET VDS Detection Self Test ............................................ 18

4.3

External FET Stuck-on Self Test ................................................. 20

Protections .......................................................................22

5.1

Battery undervoltage shutdown .................................................. 22

5.2

Device overtemperature shutdown ............................................... 22

5.3

External MOSFET overtemperature shutdown ..................................... 22

5.4

External MOSFET desaturation shut-down ........................................ 22

5.5

Hard short circuit latch-off ...................................................... 23

5.6

Current vs time latch-off ........................................................ 23

5.7

Low Current Bypass desaturation shut-down ...................................... 23

SPI functional description ........................................................24

6.1

SPI Communication ........................................................... 24

6.2

Signal description ............................................................. 25

6.3

SPI protocol .................................................................. 26

6.4

Operating code definition ...................................................... 27

6.5

Write mode................................................................... 27

6.6

Read mode .................................................................. 28

6.7

Read and clear status command................................................. 28

6.8

SPI device information ......................................................... 29

6.9

Special commands ............................................................ 29

6.10

Global status byte ............................................................. 30

VNF1048F

Contents

DS13084 - Rev 6

page 48/52

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