L9908 datasheet(6/152 Pages) STMICROELECTRONICS

No. de pieza	L9908

Descripción Electrónicos	Automotive 3-Phase motor gate driver unit

PDF	152 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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Table 2. Safety related digital input pins functional partitioning

Pins

Default State

Description

NDIS

Type B – Internal Resistance Pull-down

SPI Pin (SPI communication related pin)

EN_BR

Type B – Internal Resistance Pull-down

SPI Pin (SPI communication related pin)

Table 3. NDIS and EN_BR electrical characteristics

Symbol

Parameter

Test Condition

Min

Typ

Max

Unit

Notes

NDIS_ll_th

NDIS Input Low Level

-0.3

0.8

NDIS_hl_th

NDIS Input High Level

T_ndis_flt

NDIS filtering time

2.5

μs

Analog filter

NDIS_in_ipd

NDIS Pull Down Current

NDIS = VIO

-65

-40

-15

μA

EN_BR_ll_th

EN_BR Input Low Level

-0.3

0.8

EN_BR _hl_th

EN_BR Input High Level

T_en_br_flt

EN_BR filtering time

2.5

μs

Digital filter

EN_BR _in_ipd

EN_BR Pull Down Current

EN_BR = VIO

-65

-40

-15

μA

The state of Safety control pins EN_BR and NDIS is echoed into dedicated SPI readable bits EN_BR_ECHO and

NDIS_ECHO in the register GEN_STATUS2.

L9908

Block diagram and pin description

DS13546 - Rev 5

page 6/152

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