Honeywell AMR 2-Pin Speed Sensor Integrated Circuit VM721V1 Installation Guide

Honeywell AMR 2-Pin Speed Sensor Integrated Circuit VM721V1 Installation Guide

GENERAL INFORMATION

Honeywell’s Anisotropic Magnetoresistive (AMR) 2-Pin Speed Sensor Integrated Circuit (IC) is designed to detect the speed of a ring magnet encoder target using a unique* bridge design.
The frequency of the digital supply current is proportional to the rotational speed of the target, and works over a wide range of speeds, temperatures and air gaps.

CAUTION
ELECTROSTATIC DISCHARGE DAMAGE

  • Ensure proper ESD precautions are followed when handling this product.
  • Failure to comply with these instructions may result in product damage.

CAUTION
ELECTROSTATIC SENSITIVE DEVICES
DO NOT OPEN OR HANDLE EXCEPT AT A STATIC FREE WORKSTATION

SOLDERING AND ASSEMBLY

CAUTION
IMPROPER SOLDERING

  • Ensure leads are adequately supported during any forming/shearing operation so that they are not stressed inside the plastic case.
  • Limit exposure to high temperatures.

Failure to comply with these instructions may result in product damage.

Wave solder at 250°C to 260°C [482°F to 500°F] for a maximum of three seconds. Burrs are allowed only if full lead length will pass through a 0,68 mm [0.027 in] dia. hole.

CLEANING

CAUTION
IMPROPER CLEANING

  • Do not use pressure wash. High-pressure stream could force contaminants into the package.
  • Failure to comply with these instructions may result in product damage.

Use agitated rinse to clean the sensor.

Table 1. Operating Characteristics (Over entire supply voltage range at -40°C ≤ TA ≤ 150°C, unless otherwise specified)

Characteristic Symbol Condition Min. Typ. Max. Unit
Supply voltage Vs -40°C to 110°C 4.0 — 24 V
150°C 4.0 — 9.0
Supply current:
high low ISh ISl digital high state digital low state 12

5.9

 14

6.95

 16

8.0

 mA
Duty cycle — — 40 50 60 %
Output switching time:
rise time fall time tr tf metering resistor, no bypass capacitor metering resistor, no bypass capacitor — — — — 88 ms
Switching frequency f — — — 35 kHz

Table 2. Output Configuration

Characteristic Condition Configuration
Number of pulses per pole — 1

Table 3. Application Requirements (At 4.0 V ≤ VS ≤ 24V, -40°C ≤ TA ≤ 150°C

Characteristic Symbol Condition Min. Typ. Max. Unit
Magnetic flux B Dmax, max. air gap, max. temp. ±30 — — Gauss
Magnetic flux with valid output increased jitter B Dmax, max. air gap, max. temp. ±10 — — Gauss
Metering resistor R — 10 100 to 300 — Ohm

Table 4. Absolute Maximum Ratings

Characteristic Symbol Condition Min. Typ. Max. Unit
Operating temperature Ta — -40 [-40] — 150 [302] °C [°F]
Junction temperature TJ — -40 [-40] — 165 [329] °C [°F]
Storage temperature TS — -40 [-40] — 150 [302] °C [°F]
Thermal resistance RqJA — — — — °C/W
Supply voltage VS — -26.5 — 26.5 V
Soldering temperature — 3 s max. — — 260 [500] °C [°F]
ESD (HBM) VESD JEDEC JS-002-2014 — — ±6 kV

NOTICE

Absolute maximum ratings are the extreme limits the device will momentarily withstand without damage to the device.
Electrical and mechanical characteristics are not guaranteed if the rated voltage and/or currents are exceeded, nor will the device necessarily operate at absolute maximum ratings.
Large, stray magnetic fields in the vicinity of the sensor may adversely affect sensor performance.

Maximum Supply Voltage Rating

Figure 1. Maximum Supply Voltage Rating

Block Diagram

Figure 2. Block Diagram

Basic Application Circuit

Figure 3. Basic Application Circuit

Figure 4. Rise and Fall Time Definition

  • tr = 10% to 90% rise time
  • tf = 90% to 10% fall time

Figure 5. Transfer Characteristics

Sensor IC Mounting Orientation

Figure 6. Sensor IC Mounting Orientation

  • Radial
  • Axial

Dimensions and Product Marking

Figure 7. Dimensions and Product Marking (For reference only mm/[in])

  • Dimensions
  • Product Marking
  • Sensing Element Edge Distance

WARNING
RISK TO LIFE OR PROPERTY
Never use this product for an application involving serious risk to life or property without ensuring that the system as a whole has been designed to address the risks, and that this product is properly rated and installed for the intended use within the
overall system.
Failure to comply with these instructions could result in death or serious injury.

Warranty/Remedy

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship during the applicable warranty period. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items that Honeywell, in its sole discretion, finds defective.

The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages.

While Honeywell may provide application assistance personally, through our literature and the Honeywell web site, it is buyer’s sole responsibility to determine the suitability of the product in the application.

Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this writing. However, Honeywell assumes no responsibility for its use.

Contact Us

For more information

Honeywell Advanced Sensing Technologies services its customers through a worldwide network of sales offices and distributors.
For application assistance, current specifications, pricing or the nearest Authorized Distributor, visit sps.honeywell.com/ast or call:

Asia Pacific +65 6355-2828
Europe  +44 (0) 1698 481481
USA/Canada +1-800-537-6945