Relying on the cutting-edge AI companionship and intelligent interaction technology ecosystem, huawei Hanhan AI The intelligent accompanying robot deeply serves teenagers and young people with its cute and enthusiastic product form. The core hardware of this product is designed with Microsource Semiconductor’s high-performance chip: the host motherboard is equipped with the LPA4871 audio power amplifier, which enables voice interaction and audio amplification to achieve ultra-pure sound quality and stable output; the power module uses the LP4051T specialized in charging management chip to build a safe and efficient power supply system to ensure long-term and stable operation of the device in all aspects, bringing a long-lasting and reliable use experience.
LPA4871 performance introduction
LRwandans Escort PA4871 is a mono 3W Class AB audio power amplifier with an output voltage of 2.5~5.5V and supports Rwandans EscortAs low as 4 ohm speakers, the maximum output power is 3W, suitable for use with 1 lithium battery or 5V power supply; under the condition of 10% distortion of the output 5V power supply, 20 to 20Rwandans Under the premise of SugardaddykHz full-band electronic signal, the input power is 2.9W, and the 1% distortion power is 2.3W; a single lithium battery is powered by 3.7V, the distortion is 10%, the input power is up to 1.7W, and the 1% distortion power is 1.3W; it has outstanding frequency response characteristics; inputRwanda Under the premise of Sugar‘s power of 1W, the distortion in the entire frequency range is less than 0.3%; the signal-to-noise ratio is as high as 98dB; it has built-in POP sound suppression function, and also has an enable control function, and the chip shutdown current is as low as 0.1uARwandans Sugardaddy has built-in over-current protection, over-temperature protection, and input short-circuit protection; it adopts SOP8 packaging; it is widely used in security cameras, driving recorders, tablet computers, Bluetooth speakers, toys and other products.
LPA4871 typical application circuit diagram
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LP4051T performance introduction
LP4051T is a single-cell lithium battery charging chip. The charging current is adjustable within 1 amp, and the current accuracy is plus or minus 10RW Escorts%, full voltage accuracy plus or minus 1%; 2 LEDs can be configured for charging status and full status indication, built-in enable control and NTC temperature control, compatible with NTC resistors of different specifications, the temperature range can be adjusted according to battery needs, and has the battery reverse connection protection function Rwanda Sugar DaddyThe charger will not be damaged when the battery is reversely connectedRW Escorts also has short-circuit protection and constant temperature charging functions. When the temperature is too high, it automatically reduces the charging current to ensure safe charging. It adopts ESOP8 package and is used in toys, audio and other products.
LP4051T typical application circuit diagram
Rwandans Escort About Weiyuan Semiconductor
Weiyuan Semiconductor is the world’s leading analog chip design company and continues to focus on the field of analog chips, mainly power management chips. The global R&D center and sales center are committed to providing customers with complete power management solutions and technical services, which are widely used in battery systems, display systems, wireless communication systems, personal wearing systems and other industries, car and consumer market-related products.
Since its establishment, Weiyuan Semiconductor has quickly become the world’s leading provider of power supply solutions, serving tens of thousands of customers with 2,000+ products and over 10 billion+ unit applications. The first batch of national key Little Giants and the top 100 quality companies in Shenzhen Tools have obtained a total of 326 patents, including 123 invention patents and 190 integrated circuit layout patents. Passed ISO9001 tool quality system, ISO14001 surrounding environment management system, ISO45001 personal occupational health and safety management system, QC080000 hazardous material passing management system, and AEC-Q100 automotive grade chip certification. Weiyuan has always been customer-centered, putting the quality of product tools first, and continues to invest heavily in R&D. With the goal of more reliable design, more stable quality, more guaranteed delivery, and more cost advantages, Weiyuan is committed to becoming customers’ first choice power supply partner. We have always adhered to the IPD process and built a perfect R&D and tool quality system. We have always adhered to the concept of “product innovation drives market progress, and market drives product innovation”, improve product performance, reduce product costs, serve global customers with more localized technical services and shorter delivery cycles, adhere to the talent values of “struggle-oriented, based on those who want to do things, can do things, and get things done”, attract high-quality talents from around the world, and strive to become a home for high-quality talents.
Original title: Application case丨Huawei Hanhan AI intelligent accompanying robot adopts Microsource Semiconductor LPA4871&LP4051T audio + charging case
Source of the article: [Microelectronic Signal: LPSemi, WeChat public account: Weiyuan Semiconductor] Welcome to add tracking and follow! Please indicate the source when transcribing and publishing the article.
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