MC33991 Datasheet, PDF (4/36 Pages) Motorola, Inc – Gauge Driver Integrated Circuit

Freescale Semiconductor, Inc.
Pin Functions
Pin
Number
Pin Name
15
RST
16
17-20
V_PWR
GND
21
SIN1-
22
SIN1+
23
COS1-
24
COS1+
Description
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.
Battery Voltage. Power supply.
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.
H-Bridge Output. This pin is the output 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.
H-Bridge Output. This pin is the output 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.
H-Bridge Output. This pin is the output 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.
H-Bridge Output. This pin is the output 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
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