February, 2013
www.us-tech.com
Micropower Hall Effect Switches from Diodes Inc.
Plano, TX — Diodes Inc. has intro- duced four omnipolar Hall-effect switches offering sensitivities to closely match the magnetic field strengths used in proximity and position detection duties in a variety of different product designs. These micropower devices have also been optimized for battery and low-power operation, typically consuming just 24µW with a 3V supply.
3.3V power rails, the switches’ sup- ply range is specified at 2.5 to 3.6V. Models AH1806 and AH1808 are ini- tially being provided in the SOT553 package, with SC59(SOT23) versions following in Q1 of this year. The medium sensitivity AH1807
Highly sensitive omnipolar Hall-Effect switches.
Suitable for portable consumer
devices, including cell phones, PDAs and laptops, as well as industrial products, the high sensitivity AH1806 and AH1808 are each designed using two Hall-effect plates. With operating thresholds set at ±30G and ±40G, the switches enable users to closely control the detection point. To suit 2.8V and
and low sensitivity AH1809 Hall effect switches provide typical operat- ing points of ±80G and ±130G respec- tively and are used in applications featuring much stronger field strengths, including smart meters, home appliances and security equip- ment. For added flexibility, the switches’ supply range is 2.5V to 5.5V and operating temperature range is extended, from –40 to +125°C. There are two package options to choose from, SOT553 and the leaded SIP-3L, with SC59(SOT23) again following in Q1 of 2013. Based on innovative chopper
stabilized architecture, the switches assure high reliability over their full operating range and are character- ized by superior temperature stabili- ty, minimal switch point drift and
enhanced immunity to stress. Contact: Diodes Inc., 4949
Hedgcoxe Road, Suite 200, Plano, TX 75024 % 972-987-3900 fax: 972-731-3510 E-mail:
inquiries@diodes.com Web:
www.diodes.com
EMCO Bows Low Profile SMT Hi-V Supply
Sutter Creek, CA — EMCO High Voltage Corporation has released the latest in its line of ultra-miniature high voltage converters. The new AG Series utilizes a novel surface mount design that recesses the power sup- ply into a trench in the host PWB, resulting in a component height pro- file of kist 0.128-in. (7.11mm). The AG’s extremely low profile, coupled
and good filtering. The company’s proprietary topology provides clean, reliable, robust and efficient DC-to- high-voltage-DC conversion. With a turn-on voltage of less than 0.7V, the AG Series accommodates a wide operating voltage range. A separate high impedance control pin facili- tates the use of an external error amplifier in closed-loop systems, as
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Recessed low-profile surface-mount high-voltage power supply.
with its ability to sit inside a circuit board, rather than on top, provides a versatile space-saving solution for OEM systems designers in applica- tions where every millimeter counts. This unusual package (patent pend- ing) can be mounted using the sur- face mount tabs or with swaged PC pins for through-hole applications. According to the company,
sources of ripple, EMI/RFI and con- ducted ripple current noise become more of an issue as electronics become smaller, because noise sources get closer to sensitive cir- cuits. this converter mitigates the problem by utilizing a quasi-sine wave oscillator, fully shielded trans- former, proven layout techniques
well as providing a simple on/off con- trol. The unit has very low input-to- output leakage current (less than 100nA) and very low coupling capac- itance (<250pF). The thermally con- ductive 94V0 encapsulant and an embedded aluminum heatsink allow these modules to perform well in harsh environments. Standard input voltages are 0
to 5, 12 or 24VDC. Alternate input voltages, output voltages or power
levels are also available. Contact: EMCO High Voltage Corporation, 70 Forest Products
Road, Sutter Creek, CA 95685 % 800-546-3680 E-mail:
sales@emcohv.com Web:
www.emcohighvoltage.com
See us at Electronics West/MDM Booth 1360 and IPC/APEX Booth 2726
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