HMC1043T/R HONEYWELL [Honeywell Solid State Electronics Center], HMC1043T/R Datasheet - Page 6

• Manufacturer Part Number: HMC1043T/R
• Description: 3-Axis Magnetic Sensor
• Manufacturer: HONEYWELL [Honeywell Solid State Electronics Center]

Honeywell
12001 Highway 55
Plymouth, MN 55441
Tel: [phone]
www.honeywell.com/magneticsensors
HMC1043
A set pulse is defined as a positive pulse current entering the S/R+ strap connection. The successful result would be the
magnetic domains aligned in a forward easy-axis direction so that the sensor bridge’s polarity is a positive slope with
positive fields on the sensitive axis result in positive voltages across the bridge output connections.
A reset pulse is defined as a negative pulse current entering the S/R+ strap connection. The successful result would be
the magnetic domains aligned in a reverse easy-axis direction so that sensor bridge’s polarity is a negative slope with
positive fields on the sensitive axis result in negative voltages across the bridge output connections.
Typically a reset pulse is sent first, followed by a set pulse a few milliseconds later. By shoving the magnetic domains in
completely opposite directions, any prior magnetic disturbances are likely to be completely erased by the duet of pulses.
For simpler circuits with less critical requirements for noise and accuracy, a single polarity pulse circuit may be employed
(all sets or all resets). With these uni-polar pulses, several pulses together become close in performance to a set/reset
pulse circuit. Figure 1 shows a quick and dirty manual pulse circuit for uni-polar application of pulses to the set/reset strap.
Ordering Information
Find out more
For more information on Honeywell’s Magnetic Sensors visit us online at www.magneticsensors.com or contact us at
800-323-8295 (763-954-2474 internationally).
The application circuits herein constitute typical usage and interface of Honeywell product. Honeywell does not warranty or assume liability of customer-
designed circuits derived from this description or depiction.
Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume any liability arising out of the
application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
U.S. Patents 4,441,072, 4,533,872, 4,569,742, 4,681,812, 4,847,584 and 6,529,114 apply to the technology described
6
5 volts
5 volts
HMC1043
HMC1043 T/R
HMC1043 Cut Tape
Ordering Number
Manual Set Pulse Circuit
Form #900341 Rev B
May 2006
©2006 Honeywell International Inc.
Figure 1
One Axis Magnetic Sensor
Tape and Reel with 3k pieces/reel
Cut Tape
Product
Iset
Iset
Rsr
Rsr
3.0
3.0
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