L9945 datasheet(141/144 Pages) STMICROELECTRONICS

141 / 144 page

List of tables

Table 1.

Pin list .......................................................................... 10

Table 2.

Absolute maximum ratings capability ..................................................... 13

Table 3.

Latch-up trials ..................................................................... 14

Table 4.

ESD performance .................................................................. 14

Table 5.

Thermal behavior................................................................... 16

Table 6.

Temperature ADC electrical characteristics ................................................. 17

Table 7.

Range of functionality ................................................................ 18

Table 8.

VDD5 supply block electrical characteristics ................................................ 20

Table 9.

VPS supply block electrical characteristics ................................................. 20

Table 10.

VPS ADC electrical characteristics ....................................................... 21

Table 11.

Charge pump electrical characteristics .................................................... 22

Table 12.

SDO pin electrical characteristics ........................................................ 22

Table 13.

Output status depending on control strategy and control input .................................... 24

Table 14.

Selection of gate charge/discharge currents ................................................ 25

Table 15.

Output pre-driver stages electrical characteristics............................................. 27

Table 16.

NONx signals in H-bridge configuration.................................................... 28

Table 17.

Truth table ....................................................................... 28

Table 18.

Dead time values ................................................................... 30

Table 19.

Output response in case of DIR transition .................................................. 30

Table 20.

Output response in case of NPWM transition ................................................ 30

Table 21.

H-bridge state for different DIS/NDIS and NRES ............................................. 31

Table 22.

tOFF selection ..................................................................... 34

Table 23.

OFF state diagnostic timings for H-Bridge .................................................. 35

Table 24.

Diagnostic strategy for peak & hold configuration ............................................. 37

Table 25.

Internal oscillator electrical characteristics .................................................. 39

Table 26.

Digital I/Os electrical characteristics ...................................................... 39

Table 27.

SPI quick look ..................................................................... 40

Table 28.

SPI electrical characteristics ........................................................... 42

Table 29.

SPI protocol ...................................................................... 43

Table 30.

SPI MOSI list...................................................................... 44

Table 31.

NDIS OV protection electrical characteristics ................................................110

Table 32.

HWSC timing characteristics ...........................................................112

Table 33.

VPS UV detection electrical characteristics .................................................112

Table 34.

Charge pump undervoltage detection electrical characteristics....................................112

Table 35.

CC timings .......................................................................114

Table 36.

Diagnostic codes ...................................................................115

Table 37.

Selection of fast shutdown currents in case of OC detection .....................................116

Table 38.

OC sensing strategy.................................................................117

Table 39.

Overcurrent threshold selection electrical parameters ..........................................118

Table 40.

OC threshold selection ...............................................................119

Table 41.

OC detection timings ............................................................... 120

Table 42.

Temperature compensation ........................................................... 121

Table 43.

Diagnostic filter time selection for OFF state ............................................... 126

Table 44.

Deglitch filter time for OFF state diagnostics ............................................... 126

Table 45.

OFF state diagnostic thresholds........................................................ 127

Table 46.

Open Load output voltage ............................................................ 128

Table 47.

Vout regulator current capability IDIAG .................................................... 128

Table 48.

Fast charge/discharge current generator electrical characteristics ................................ 130

Table 49.

Diagnostic pulses timings ............................................................ 131

Table 50.

Summary of disable sources and faults................................................... 131

Table 51.

Response frames to signal integrity requests ............................................... 132

Table 52.

Order codes ..................................................................... 133

Table 53.

TQFP64 (10x10x1 mm exp. pad down) package mechanical data ................................ 135

L9945

List of tables

DS12275 - Rev 10

page 141/144

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