Diodes Incorporated
- Zetex Technology Park,
Chadderton,
Oldham
OL9 9LL,UK
United Kingdom - +44 (0)161 622 4444
- http://www.diodes.com
- +44 (0)161 622 4469
Diodes Incorporated Articles
Transceiver enables asynchronous communication between data buses
Featuring a control pin to determine data flow direction, the 74LVT245BB octal transceiver from Diodes Incorporated enables asynchronous communication between data buses. Disabling the tri-state outputs allows the buses to be completely isolated. Once reserved primarily for computer applications, data buses are now commonplace in TVs, set-top boxes, base stations and other data communication devices, providing a broad market for transceiver circu...
LED controllers drive lamps up to 150W with high PF
Operating at up to 150W and featuring multiple dimming options, Diodes Incorporated announce the AL1663 and AL1663R single-stage dimmable LED controllers. These devices support flyback and buck-boost topologies to provide primary-side regulation that achieves an accurate constant-current output without requiring opto-couplers and secondary control circuitry.
Active OR-ing MOSFET controller features 200V rating
An active OR-ing MOSFET controller, suited for power systems that use redundancy to achieve high reliability in telecomms, data centre and server applications, has been introduced by Diodes Incorporated. The ZXGD3111N7 increases performance with a 200V maximum drain voltage, from the previously announced 40V ZXGD3108N8, allowing it to address requirements in 48V common rail systems where the outputs of two or more power supplies are OR’ed t...
Unipolar Hall-effect switches operate from 3 to 28V
Designed to operate from 3.0 to 28V in consumer and industrial applications, Diodes Incorporated has introduced a family of high‑performance unipolar Hall-effect switches. The AH337x series of four devices features open-drain outputs in varying sensitivities from +30G to +115G while the high‑sensitivity AH3382 has an internal pull-up on its output.
Secondary-side MOSFET driver reduces BOM cost
A secondary-side MOSFET driver from Diodes Incorporated,is claimed to deliver the smallest size, lowest BOM cost solution for synchronous rectification in 5 to 12V power supplies. The APR345 is suitable for line-powered adapters and chargers for consumer products such as smartphones and tablets, PVRs and IPTV boxes, cable and xDSL modems, datacomms equipment and other portable consumer/home appliances.
Super barrier rectifier suits retrofit MR16 LED lamps
Designed to deliver a low forward-voltage drop in a small form factor while maintaining low reverse-current leakage, the SBRT3M40P1 Trench Super Barrier Rectifier (SBR) has been introduced by Diodes Incorporated. This capability addresses requirements for input bridge rectifiers in SSL applications focused on 12VAC LED retrofit lamps, which provide a more efficient and longer life alternative to popular MR16 halogen bulbs.
BLDC motor driver offers PWM or DC voltage speed control
Diodes Incorporated has announced BLDC motor drivers featuring a Bridge-Tied-Load (BTL) drive architecture to minimise audible switching noise and EMI. The AM9468 and AM9469 provide smart driving of cooling fans in notebook and desktop computers, instrumentation and similar equipment, as well as supporting a wide range of other medium-voltage, low-power, motor-driving applications.
SPDT analogue switch is designed for multiplexing
Designed for multiplexing digital or analogue signals, the 74LVC1G3157 SPDT analogue switch has been introduced by Diodes Incorporated. Its low on-state resistance ensures high integrity when routing audio signals, making this switching solution well-suited for a wide range of advanced consumer electronics from cell phones, tablets and e-readers to personal music players, hand-held games, satellite navigation and other audio equipment.
LED driver meets worldwide retrofit lamp requirements
Providing a design that delivers high efficiency and a low BOM cost, the AL1676 universal AC-input LED driver has been introduced by Diodes Incorporated. Designed to meet or exceed worldwide power-factor regulations for non-dimmable retrofit LED bulbs and tube lighting, options for the integrated MOSFET allow for 300 to 650V drain voltages and 1 to 4A drain currents in order to suit most 3 to 18W bulb requirements.
Latest diode offers power delivery protection
Offering TVS for USB data and power connections, the D5V0F3B6LP20 diode array introduced by Diodes Incorporated is one of the most rugged protection devices in its class. It is aimed at consumer and mobile communications products with a USB interface, especially those employing the new USB PD protocol that supports quick charging and higher power connections.
Enhancing dimmer capability
Well suited for line powered, triac-dimmable LED lighting applications, the new AL1697 LED driver by Diodes Incorporated provides compatibility with leading and trailing edge triac dimmers using a single-stage, high power factor dimming circuit that complies with the NEMA SSL-6 dimming curve, delivering optimal line and load regulation.
40V automotive MOSFETs are suited for motor control
Designed for use in high ambient temperature environments, Diodes Incorporated has announced two 40V automotive-compliant MOSFETs operating at up to +175°C. The DMTH4004SPSQ has been designed to meet the requirements of high-power (>750W) BLDC applications, such as water and fuel pumps, while the DMTH4005SPSQ is suited to lower power BLDC applications, such as auxiliary pumps and HVAC systems.
Gate drivers provide switching for power MOSFETs or IGBTs
The DGD21xx series of six half-bridge and six high/low-side 600V gate drivers introduced by Diodes Incorporated provides a simple means of switching power MOSFETs and IGBTs in half- and full-bridge configurations. Target applications include driving motors in white goods, industrial automation systems and battery-operated vehicles such as eBikes and drones.
Buck converter delivers high efficiency over full load range
Designed for battery-powered applications such as mobiles and wearables, the AP3405 DC/DC buck converter has been introduced by Diodes Incorporated. Delivering high efficiency under light and heavy loads, the converter's fixed switching frequency of 2MHz reduces the size of external components while a small U-DFN2020-8 package saves board area.
Enhance the safety of 1-cell lithium-ion battery packs
Designed for the safe operation of 1-cell Li-ion battery packs, Diodes Incorporated has introduced a battery protection device aimed at the manufacturers of protection circuit modules who supply the battery pack makers. The AP9211 combines a protection chip with a dual N-channel MOSFET to provide a rich set of features that include overcharge, over-discharge and load short-circuit detection.
100V H-bridge combines dual N- & P-channel MOSFETs
Incorporating dual N-channel and P-channel MOSFETs into a 5.0 x 4.5mm DFN5045 package, a 100V full H-bridge has been introduced by Diodes Incorporated. The DMHC10H170SFJ's configuration reduces component count and board space, which is especially important in applications that require multiple devices.
Super-barrier rectifiers improve efficiency by up to 2%
Employing proprietary super-barrier trench technology to significantly reduce power loss and operating temperature, the SBRTF40U100CT and SBRTF40U100CTFP 40A rectifiers have been introduced by Diodes Incorporated. When used as output rectifiers in power adapters and quick chargers for smartphones, tablets and flat-panel TVs, these devices can improve efficiency by up to 2% and reduce operating temperature by up to 10°C.
Output voltage detector improves transient performance
Employing a patented design to address the need for fast transient performance in primary-side regulation systems, the AP4341S has been introduced by Diodes Incorporated. The output voltage detector offers a high-performance and cost-effective solution for power adapters and chargers used in portable and consumer applications.
Precision voltage detection enables longer cell life
Designed specifically for use in rechargeable Li+ battery packs, such as in portable electronics, the AP9214L has been introduced by Diodes Incorporated. Providing single-chip protection for 1-cell Li+ and lithium-polymer batteries, the device’s accurate monitoring capability delivers safe charging and discharging, prolonging cell lifetime and minimising energy losses.
LED driver suits triac-dimmable lighting applications
Designed to fit a range of triac-dimmable lighting applications, particularly retrofit lamps, the AL1696 LED driver has been introduced by Diodes Incorporated. An integrated MOSFET, which also eliminates the need for an auxiliary winding, reduces BOM cost and component count while the option of three MOSFET voltage/current ratings provides design flexibility for meeting manufacturing requirements for residential lighting.