L9935 datasheet(7/29 Pages) STMICROELECTRONICS

部件名	L9935

功能描述	Two-phase stepper motor driver

PDF	29 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

7 / 29 page

L9935

Pin description

Doc ID 5198 Rev 10

7/29

Pin description

Figure 2.

Pin connection (top view)

Table 2.

Pin function

Pin No

Name

Description

1,10,11,20

GND

Ground. (All ground pins are internally connected to the frame of the

device).

2OUTA1

Output1 of full bridge 1

SCK

Clock for serial interface (SPI)

SDI

Serial data input

SDO

Serial data output

VCC

5V logic supply voltage

CSN

Chip select (Low active)

8EN

Enable (Low active)

9OUTB1

Output1of full bridge 2

SRB

Current sense resistor of the chopper regulator for OUTB

OUTB2

Output 2 of full bridge 2

CDRV

Charge pump buffer capacitor

OSC

Oscillator capacitor or external clock

Supply voltage

Not connected

OUTA2

Output of full bridge 1

SRA

Current sense resistor of the chopper regulator for OUTA

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