L9908 datasheet(43/152 Pages) STMICROELECTRONICS

Nome de Peças	L9908

Descrição Electrónicos	Automotive 3-Phase motor gate driver unit

PDF	152 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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43 / 152 page

Figure 24. Recommended Power-Up sequence

5.8

Digital I/O

5.8.1

VIO power supply

The VIO power supply is a dedicated power input designed to supply the Digital Output circuitry. The voltage level

applied to VIO will reflect directly onto digital output level allowing compliance with major digital I/O standards (5

V, 3.3 V).

5.8.2

Digital Input (DI)

Digital input pins on L9908 are used to transfer digital communications coming from an external source and

supply domain to the internal logic and it’s related to a 3.3 V domain.

Table 31. Digital input pins functional partitioning

Pins

Default State

Description

SCLK

Type A – Internal Current Pull-down

SPI Pin (SPI communication related pin)

SDI

Type A – Internal Current Pull-down

SPI Pin (SPI communication related pin)

NCS

Type C – Internal Current Pull-up

SPI Pin (SPI communication related pin)

INHn, INLn [1,2,3]

Type A – Internal Current Pull-down

Control Loop Pins (Gate Driver control related pins)

L9908

Functional description

DS13546 - Rev 5

page 43/152

L9908 Folha de dados(PDF) 43 Page - STMicroelectronics