32304118 Datasheet, PDF (1/8 Pages) Honeywell Solid State Electronics Center – Magnetoresistive Sensor ICs

Magnetoresistive Sensor ICs
Standard Power Series: SM351RT, SM451R, SM353RT, SM453R
32304118
Issue B
SM451R
SM453R
SM351RT
SM353RT
DESCRIPTION
Honeywell’s Magnetoresistive Sensor ICs (integrated circuits),
Standard Power Series, are ultra-sensitive devices designed
for manufacturers who need a durable and reliable speed or
position sensor for large air gaps or small magnetic fields in
standard power (typically 3 Vdc to 24 Vdc) applications. Unlike
reed switches and other magnetic sensors, Honeywell’s solid
state design offers ultra-high sensitivity of 11 G max., making it
the highest sensitivity sensor in its class for standard powered
applications. The Magnetoresistive Sensor ICs, Standard Power
Series, respond to either a North or South pole applied in a
direction parallel to the sensor. They do not require the magnet
polarity to be identified, simplifying installation and potentially
reducing system cost.
VALUE TO CUSTOMERS
• Durable and reliable due to magnetic solid state, non-contact,
no-glass design which enhance switching capability.
• Cost-effective and flexible due to the sensor IC’s ultra-high
sensitivity—the highest sensitivity sensor in its class for
standard powered applications—which lowers the customer’s
cost of magnets and simplifies design-in.
• Simplifies design-in for wired applications due to its supply
voltage range, omnipolar operation, SOT-23 and flat TO-92-
style package options and wide operating temperature range.
DIFFERENTIATION
• Ultra-high sensitivity (SM351RT and SM451R) allows for
potential use in applications requiring ultra-high magnetic
sensitivity (7 G typical operate, 11 G maximum operate).
Datasheet
FEATURES
• Magnetic sensitivities:
- Ultra-high sensitivity (SM351RT and SM451R): For
applications requiring ultra-high magnetic sensitivity
(7 G typical operate, 11 G maximum operate)
- Very high sensitivity (SM353RT and SM453R): For
applications requiring very high magnetic sensitivity
(14 G typical operate, 20 G maximum operate)
• Package styles:
- SOT-23 (SM351RT, SM353RT)
- Flat TO-92-style (SM451R, SM453R)
• Supply voltage range 3 Vdc to 24 Vdc
• Omnipolar sensing activates with either pole from a magnet
• Temperature range -40 °C to 85 °C [-40 °F to 185 °F]
• SOT-23 supplied on tape and reel (3000 units per reel)
• RoHS-compliant materials meet Directive 2002/95/EC
POTENTIAL APPLICATIONS
Industrial
• High frequency flow sensing in HVAC, water, fuel meters,
and gas utility meters
• Anti-tamper detection in water, electric, and gas utility
meters
• Liquid level detection
• Motor RPM sensing
• In-cylinder position sensing
Medical
• RPM sensing in exercise and rehabilitation equipment
• Magnetic interrupt in exercise and rehabilitation equipment
• Absence/presence detection in infusion pumps
• Position sensing of medication dispensing cabinet drawers
• Incline position sensing in hospital beds
White Goods
• Lid, door and drawer position detection
• Fluid flow detection
• Liquid level detection
PORTFOLIO
Honeywell’s Standard Power Series join:
• Magnetoresistive sensor ICs, including the Nanopower
Series, 2SS52M Series, SS552MT Series
• Hall-effect sensor ICs, including the SS351A, SS451A
Sensing and Productivity Solutions