MC33991DW データシートの表示（PDF） - Freescale Semiconductor

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MC33991DW

Gauge Driver Integrated Circuit

Freescale Semiconductor 

PIN CONNECTIONS

Table 1. 33991 Pin Definitions (continued)

Pin Number

15

Pin Name

RST

Definitions

Reset. If the master decides to reset the device, or place it into a sleep state, the RST pin is driven to a

logic 0. A logic 0 on the RST pin will force all internal logic to the known default state. This input has an

internal active pull-up.

16

VPWR

Battery Voltage. Power supply.

17 - 20

GND

Ground. These pins serve as the ground for the source of the low-side output transistors as well as the

logic portion of the device. They also help dissipate heat from the device.

21

SIN1-

H-Bridge Output. This is the output pin of a half bridge, designed to source or sink current. The H-Bridge

pins linearly drive the sine and cosine coils of two separate stepper motors to provide four-quadrant

operation.

22

SIN1+

H-Bridge Output. This is the output pin of a half bridge, designed to source or sink current. The H-Bridge

pins linearly drive the sine and cosine coils of two separate stepper motors to provide four-quadrant

operation.

23

COS1-

H-Bridge Output. This is the output pin of a half bridge, designed to source or sink current. The H-Bridge

pins linearly drive the sine and cosine coils of two separate stepper motors to provide four-quadrant

operation.

24

COS1+

H-Bridge Output. This is the output pin of a half bridge, designed to source or sink current. The H-Bridge

pins linearly drive the sine and cosine coils of two separate stepper motors to provide four-quadrant

operation.

33991

4

Analog Integrated Circuit Device Data

Freescale Semiconductor

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