Littelfuse Announces Arrays of Automotive TVS Diodes to Ensure Highest Reliability in the Most Rough Environments

Littelfuse Corporation today announced the launch of two AEC-Q101-compliant transient-suppression diode array (SPA® diodes) families. The AQHV and AQHV-C series are designed to provide extremely fast-acting, high-performance overvoltage protection devices that are best suited for power interfaces, passenger charging interfaces, and LED lighting modules and low-speed I/O.

                                    AQHV / AQHV-C Series TVS Diode Arrays

The 200W discrete AQHV series (unidirectional) and AQHV-C (bidirectional) products protect sensitive equipment from electrostatic discharge (ESD) and other overvoltage transients. Both series of products can safely absorb the highest level of repetitive electrostatic discharges higher than the international standards without causing performance degradation, and can safely dissipate up to 8A (AQHV12 series) at a very low clamping voltage Inrush current.
Typical applications for AQHV and AQHV-C series TVS diode arrays include:
· ESD protection of automotive electronics
· LED lighting module
· Mobile/handheld devices
CAN bus (telewire control)
· LIN bus RS-232 and RS-485 interface
· General low speed I/O
· Portable Instrument
"As a device that meets the requirements of AEC-Q101, the AQHV and AQHV-C series can ensure the highest reliability in the harshest environments," said Tim Micun, Director of Littelfuse's TVS Diode Array (SPA® Diode). "This makes it an excellent choice for designers who need to replace passive ESD protection devices or deploy protection devices on printed circuit boards."
The AQHV and AQHV-C series of TVS diode arrays have the following key advantages:
Up to ±30kV ESD protection and surge protection up to 8A help equipment manufacturers comply with industry standards and extend equipment life and system uptime.
Compared to alternative technologies, the lower dynamic resistance lowers the clamping voltage by 60%, which is ideal for protecting modern electronic products using small ICs.
The silicon diodes used in the structure can handle >1000 ESD shocks or transient surges without degrading performance, compared to alternative technologies that have inherent internal wear defects.
Availability
The AQHV and AQHV-C series of TVS diode arrays are available in SOD-882 (0402) surface-mount packages and are available in 10,000-reel tape packages.
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Ultra-high bright LCDs come in 10.1”, 15.6” sizes

TIANMA GROUP 10.1-inch WXGA and 15.6-inch WXGA LCDs both deliver ultra-high luminance. The 10.1-inch wide model has a luminance of 1000cd/m2 and the 15.6-inch wide model has a luminance of 1250cd/m2. Device brightness results in displays with vivid colors and excellent visibility, even in direct sunlight. Products are suitable for industrial, outdoor viewable products.

Source from:EPT
More LEDs:YIKESHU

CSR Launches Sixth Generation Bluetooth Chip

CSR announced the launch of its sixth-generation BlueCore Bluetooth chip. BlueCore6 offers industry-leading radio performance and low power consumption, and fully supports the latest Bluetooth specification (v2.1+EDR). BlueCore6 includes CSR's AuriStreamTM technology, which is a huge breakthrough in the way Bluetooth handles voice transmissions; AuriStream technology provides higher voice quality, and BlueCore6-ROM consumes less power than standard Bluetooth voice transmission methods. 40%. BlueCore6 will begin mass production in January 2008.

CSR further enhances RF performance and provides BlueCore6 with best-in-class Bluetooth coverage without the need for an external power amplifier. Compared to BlueCore4, BlueCore6's maximum allowable power loss standard value improves overall by 11dB (Tx input power +4dBm, Rx input power -7dBm), making BlueCore6 the most efficient Bluetooth radio in the industry and helping to improve the overall body operation For example, a connection between a Bluetooth headset and a mobile phone carried by the user is established. The BlueCore6-ROM is smaller than other brands of Bluetooth chips and is packaged using CSR's tested and validated wafer-level CSPs.

Voice is still an important application area of ​​Bluetooth technology. Users constantly demand higher voice quality and longer battery life. CSR's BlueCore4 is the world's leading Bluetooth chip. The currently launched BlueCore6 has all of its features and has made important improvements in voice quality and power requirements.

Fiona Thomson, senior analyst at IMS Research, a UK market research company, said: “Our research has found that consumers expect to have products with high performance and low power consumption, such as CSR's BlueCore6. CSR continues to introduce new products for Bluetooth products. Not only does it benefit consumers, but it also strengthens CSR's leadership in mobile phones and headsets, making it a preferred choice for manufacturers."

Traditionally, Bluetooth has relied on a Continuous Variable Slope Delta Modulation (CVSD) coding scheme to deliver voice over synchronous connection-oriented (SCO) links. CVSD is a fairly simple binary encoding scheme. We chose this solution because it is very reliable and error-proof. However, SCO does not allow retransmission of erroneous data packets. However, after the release of Bluetooth specification v1.2, eSCO can implement retransmission. Through the AuriStream technology, CSR introduced Adaptive Differential Pulse Code Modulation (ADPCM) as an enhanced speech coding method that can perform exactly the same function at half the rate of CVSD (ADPCM scan rate is 32Kbps, while CVSD is 64Kbps) saves half of the Bluetooth power consumption of your phone. ADPCM performs more accurately and provides higher voice quality. CSR's AuriStream technology raises the user's average opinion score for voice quality from CVSD's 2.41 to the current 4.14, enabling Bluetooth connectivity to the level of fixed-line voice.

CSR has adopted a variety of technologies on BlueCore6 that have greatly reduced the power consumption of Bluetooth or main devices. CSR reduced standby power consumption and adjusted the way Bluetooth devices scan other devices. On average, standby power consumes more than half of the overall power consumption in a Bluetooth system.

CSR's BlueCore6 uses two new scanning modes: conditional scanning and random scanning. By combining these technologies with BlueCore6-ROM, CSR saved 86% of Bluetooth power consumption in scanning mode.

When performing a condition scan, BlueCore only wakes up a minimum number of radios to perform a quick scan of 2.4 GHz band activity. If there is activity, it will initiate a formal Bluetooth paging scan/paging; if no activity is found, the radio will remain dormant.

CSR's random scan mode synchronizes the BlueCore6-ROM's periodic wake-up procedure with the attached baseband device so that VCTXO does not always wake up during the Bluetooth scan cycle. The Bluetooth chip typically shares a VCTXO with the mobile phone host system to minimize the use of other components and save the power consumption of the mobile phone system.

CSR CEO John Scarisbrick said: "BlueCore6 is CSR's most outstanding Bluetooth chip, and it provides new technology that is unique to any of our previous generations of products. BlueCore6 is ahead of any similar technology on the market today. This fully demonstrates that CSR continues to maintain its leading position in wireless innovation,” said Mr. Scarisbrick: “The major top mobile phone and headset manufacturers have expressed great interest in our BlueCore6 products.”

Bluetooth products attention TP

So cool!YIKESHU 4 wheel 2 layer Robot Smart Car

Hello everyone.

I brought you another surprise today.

It is a 4 wheel 2 layer Robot Smart Car.

Give you a cool look first.

Next, I will introduce the performance of 4 wheel 2 layer Robot Smart Car.

High performance engine, making it easy to use and control / 1:18 full scale simulation design, as a real race car control / 2.4 GHz offers, for the strong anti-jamming ability.

Persistent superpower can play more than 30 minutes / radio remote control, the control distance is approximately 60m / Low chassis design for anti-rotation, ensures safe operation.

Climbing forward, backward, turn left, turn right over obstacles / independent suspension on all four wheels, shockproof, better protect the truck: With high quality tires, non-slip, perfect experience / function.

High strength and super flexible technical material to be adopted to make the body / technology design, ensures stable performance.

Battery: 3 x 1.5 V AA batteries for the transmitter (not included), 1 x 4.8 V 700 mAh Ni-Ca battery for the car / No signals to interfere with the operation of several cars.

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YIKESHU C-14 Remote Control Off-Road Racing Vehicles 1:16 2.4G 2CH 4WD Off-road Kids RC Toy Climb Semi Truck RTR Trailer(Red)

This time I'm going to introduce a remote-controlled off-road vehicle.

You will love it when you see it.
The red body looks very cool.
Let me introduce the performance.

4-wheel drive 1:16 scale off-road RC truck, high simulation.
Metal chassis helps to support the heavy load, durable and long life.
2.4Ghz CONTROLLER: 2.4GHz radio control provides an interference free operation which permits multiple RC cars racing together, so you can play in solo or racing with others for more fun; the LED lights provide a chance to race in night.
Power-efficient - driving for up to 25 minutes with the 6V 700mAh battery ( optional )
High-quality TPR tires, wear-resistant and suitable for driving on rugged roads.

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Comments can be sent for free.

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My mail box：1598962047@qq.com 

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Smart NFC chip has become standard

Talking about infrared, Bluetooth, and NFC on mobile phones, I believe we are not silent. The first three technologies are used to transfer data between machines. With the emergence of a large wave of data exchange software and changes in demand, these functions were slowly cut off by mobile phone manufacturers.

In recent years, these technologies have been widely used in technological advancement. More and more mobile phones have started to incorporate these hardware, but their functions are no longer single. Infrared is mainly used as a remote control, and the application of NFC is more extensive. Bank cards and public transportation cards can be swiped.
Starting from the iPhone 6, Apple has built in NFC chips in its mobile devices, but it is not open to developers and can only be used for Apple Pay. In some areas in China, you can use the iPhone to swipe the subway, but it is not available nationwide. universal. What is more interesting is that you can still use Apple Pay for payment without network support.

For Android phones, the smart NFC chip has basically become the standard for the new machine. Thanks to the open features of Android, it can do more. Not only can it be used to swipe bank cards, but it can also brush subway buses. At present, the flagship models of Samsung, Xiaomi, Huawei, Meizu and Nubia are all equipped with smart NFC chips. It is sufficient to go out in the first-line cities and other developed cities to bring mobile phones.
So, Android phone can still be used in the case of no electricity? If you are using the NFC card function, it is an rfid card that can be read and used by the reader, such as the reading of a public transportation card; if it is The interactive communication function is not available.
Bank cards or other magnetic cards are uncharged, read or change card contents, and are externally supplied with power. Then the mobile phone NFC does not belong to the physical card. It belongs to the virtual card. It is the mobile phone software that exchanges information with the NFC receiving terminal, and the receiving terminal device does not give the NFC the power. Therefore, the power required by the NFC exchange information is provided by the mobile phone. The power required for NFC exchange of information is small. As long as the NFC function is turned on, even if the mobile phone is turned off, it can support several NFC information exchanges by relying on the battery power.

That is to say, as long as you have turned on the NFC function and set the default card swiping mode, you can directly swipe the mobile phone into the subway bus in case of shutdown. Theoretically speaking, this argument is true. It is okay to test the millet 6 by yourself. However, due to the fact that the specific implementation principles of various manufacturers may differ, the specific situation has to be measured by oneself.

Other chips:YIKESHU

4 wheels DIY smart car are free to send

I have a very cool DIY car here to share with you.

The use of four deceleration direct current machine curve to be nimble, the directivity is good. Four actuations, horsepower fullness. The chassis big and steady very easy to expand
Educational toys, help to improve the ability of children, suitable for young people at key stages of heart development
With a car platform, add some micro-controller (such as Arduino) and sensor modules, and program it. Then you made your own robot car
DC 6V 4-wheel Robot Smart Car Chassis Kits car with Speed Encoder for Arduino
Educational kit for beginners(kid) to get hands-on experience about Robotics & Can extend electronics system like Raspberry Pi Arduino etc to realize function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control.
Fortunately, you now see my share. Yes, we are doing activities now. We need 10 reviews to send this cool DIY car for free.
If you are interested and want to get it, please contact me. I will tell you the specific way of doing things.
my email:1499123520@qq.com