L9969S datasheet(54/70 Pages) STMICROELECTRONICS

54 / 70 page

3.2.7.8

Logic inputs and outputs

Figure 31. Inputs/outputs of the H-bridge

DIS

SCK

PWM

DIR

VDD

GND

ABE

Result of

RD_DIA

command

Logic

and

SPI

MUX

Internal supply

≥1

with undervoltage

detection

SPI reset

Supply with

undervoltage

detection

Enable

Reset of

diagnostic

Diagnostic

Control

H-bridge

Note:

•

Both NABE and DIS release the power stages.

•

VDD monitoring sets NABE → low, in case VDD is out of the operational range.

3.2.7.8.1

Logic I/O electrical characteristics

Table 43. Logic I/O electrical characteristics

Symbol

Parameter

Condition

Min Typ

Max

Unit

Pin DIR, PWM

VINx_L

input low level

-0.3

0.8

VINx_H

input high level

2.0

VDD + 0.3

VINx_HYS input hysteresis

0.15

1.0

IpuINx

Pullup current

VINx = 0 V

µA

IINx

input current VINx > 3.0 V (without Pull Up)

-5

µA

CINx

Input capacity

Pin DIS

VDIS_L

input low level

-0.3

0.8

VDIS_H

input high level

2.0

VDD + 0.3

VDIS_HYS input hysteresis

0.15

1.0

L9969x

Functional behavior in detail

DS14029 - Rev 3

page 54/70

L9969S Datasheet(PDF) 54 Page - STMicroelectronics

L9969S Datasheet(HTML) 54 Page - STMicroelectronics

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

Datasheet Download

Link URL