Tiny, Micropower Hall-Effect Switches from Diodes Incorporated Deliver Compatibility with Low-Voltage Chipsets
21 Marzo 2024 - 8:14AM
Business Wire
Diodes Incorporated (Diodes) (Nasdaq: DIOD) introduces three new
Hall-effect switches, the AH1899A/B/S, which operate from a low
supply voltage and at extremely low quiescent current to extend
battery lifetime in mobile and portable devices. The AH1899A/B/S
are used to detect the open/closed status of covers and cases for
portable electronic devices, such as smartphones and tablets. They
are also designed for proximity detection in digital cameras and
handheld gaming consoles, as well as general contactless
switching.
These switches, with their supply-voltage range of 1.1V to 2.0V,
seamlessly integrate with state-of-the-art application chipsets
operating at 1.2V, ensuring ease of use. The power-efficient
architecture of these parts lowers the typical average operating
current to as little as 0.95µA at 1.2V. The hibernating clocking
system in these switches help maximize system energy savings to
extend the runtime of battery-operated devices.
The omnipolar AH1899A/B/S operate with either north or south
magnetic poles close to the package surface. Leveraging an advanced
chopper-stabilized topology, the operating (BOP) and release (BRP)
points display minimal drift with supply voltage and temperature.
Two sensitivity grades are available, giving designers flexibility
to tailor the switch response for their application. The AH1899B
and AH1899S operate when the magnetic field strength (B) exceeds 30
Gauss and release at below 20 Gauss. The AH1899A is a
high-sensitivity version that operates at 18 Gauss and releases at
12 Gauss. All versions remain off when no field strength is
present.
Designers can also take advantage of board-space savings by
selecting these switches, which are packaged as X2-DFN1010-4 (Type
B) surface-mount devices. At just 1.0mm x 1.0mm, and 0.4mm high,
the footprint is smaller than typical alternatives. In addition,
the internal circuitry integrates pull-up and pull-down resistors
to save the PCB area usually needed for external components.
The AH1899A, AH1899B, and AH1899S are in production and
available from $0.11 in 5,000 piece quantities. These, and the full
portfolio of Hall-effect sensors are included in the Hall-effect
sensor part selector.
About Diodes Incorporated
Diodes Incorporated (Nasdaq: DIOD), a Standard and Poor’s
SmallCap 600 and Russell 3000 Index company, delivers high-quality
semiconductor products to the world’s leading companies in the
automotive, industrial, computing, consumer electronics, and
communications markets. We leverage our expanded product portfolio
of discrete, analog, and mixed-signal products and leading-edge
packaging technology to meet customers’ needs. Our broad range of
application-specific solutions and solutions-focused sales, coupled
with worldwide operations of 32 sites, including engineering,
testing, manufacturing, and customer service, enables us to be a
premier provider for high-volume, high-growth markets. For more
information visit www.diodes.com.
The Diodes logo is a registered trademark of Diodes Incorporated
in the United States and other countries.
All other trademarks are the property of their respective
owners.
© 2024 Diodes Incorporated. All Rights Reserved.
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Gurmeet Dhaliwal Director, Investor Relations & Corporate
Marketing Diodes Incorporated +1 408-232-9003 Contact Us
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