AMEYA360:Dioo independently developed DIA2641 through vehicle regulation certification
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AMEYA360:Dioo independently developed DIA2641 through vehicle regulation certification

　　Recently, Jiangsu Diao Microelectronics Co., LTD. (hereinafter referred to as Diao Micro) independent research and development operational amplifier series products DIA2641 passed AEC-Q100 vehicle gauge reliability certification.　　In recent years, the automobile industry presents the development trend of electrification, intelligence and sharing. The rapid upgrading of the industry has put forward higher requirements for chip performance, reliability, adaptability and security.　　The DIA2641 is a high-bandwidth, high-voltage swing rate, high-voltage op-amp product designed to provide optimal performance in high-voltage systems, providing rail-to-rail output even under heavy load conditions with fast output conversion rates (150 V/? s) Ensure rapid response ability of signal from input to output.　　DIA2641 complies with AEC-Q100 Grade 1 high reliability certification standards and PPAP procedures, and is widely used in motor control, body control, virtual instrument, intelligent cockpit and other automotive electronic markets. It is now in mass production and delivery stage.　　DIA2641 Main parameters:　　· Support AEC-Q100 Grade 1 temperature rating requirements (TA = -40℃ to +125℃);　　· Operating voltage range: 2.7V to 13.2V;　　· High gain bandwidth product: 90MHz (Vs=5V);　　· Ultra-high voltage swing rate: 150V/μs;　　· Input offset voltage: 11mV (maximum);　　· Open-loop voltage gain: 101dB;　　· PSRR: 85dB (Vs=5V);　　· Common-mode rejection ratio: 90dB;　　· Support rail to rail input and output;　　· Establishment time: 100ns (VOUT = 2Vpp, accuracy ±1%, CL=8pF, Vs=5V);　　· SOT23-5 green package in line with environmental protection concept.　　High bandwidth gain product (GBW)　　The gain-bandwidth product is an important parameter used to measure the performance of an operational amplifier. This parameter represents the product of gain and bandwidth. The unit gain bandwidth of the operational amplifier, which refers to the -3dB bandwidth when the operational amplifier gain is 1, is numerically equivalent to the gain bandwidth product of the operational amplifier.　　High voltage swing rate (SR)　　Voltage swing rate is the conversion rate of the output voltage of an operational amplifier. Is an indicator of the speed of the operational amplifier, indicating the response ability of the operational amplifier to the speed of signal change, is a parameter to measure the operating speed of the operational amplifier when the large signal action.　　Power supply rejection ratio (PSRR)　　PSRR of operational amplifier refers to the change of input offset voltage caused by the change of supply voltage. Therefore, PSRR can be measured by referring to the method of measuring the offset voltage. From the change of the power supply voltage, △ Vcc and then from the measurement, you can calculate the PSRR.
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Release time：2023-03-27 11:40 reading：2579 Continue reading>>
<span style='color:red'>DIOO</span> PMIC DIO8018 with 7-channel high-performance LDO
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DIOO PMIC DIO8018 with 7-channel high-performance LDO

　　DIOO has recently launched the PMIC DIO8018, an integrated 7-channel high-performance LDO which is specially designed to provide power supply solutions for multi-camera application scenarios such as mobile phones, tablet computers and extended reality (XR).　　In one camera module, CMOS image sensors generally require three-way power supplies (Core, I/O, and Analog), and some cameras also have power supply requirements for auxiliary functions such as Optical Image Stabilization (OIS) and Auto Focus (AF). A single camera module needs 3~5 channels of power supply, and the tablet computer, mobile phone, and XR require more than one camera module.　　The load characteristics and requirements of the power supply differs by camera modules. There are digital circuit power supply DVDD that requires high current and fast dynamic response, and analog circuit power supply AVDD that is very sensitive to power supply noise. Different types of cameras may also require different output voltages and currents. The camera sensor power supply generally supplies the nearest components. However, the main PMIC of the platform is generally far away from the position of the camera, and it does not have enough channels to supply multiple cameras.　　The use of multiple discrete LDOs is a solution, but it will occupy a large amount of PCB area, which is a huge challenge to the structural design and PCB layout of multi-camera module equipment.　　The DIO8018 can not only meet the high current and fast dynamic response required by DVDD, but also meet the high PSRR and low noise required by AVDD, and also satisfies the need for an ultra-small size. It is a perfect solution for multi-camera applications.　　图1：Typical Applications　　Integrated 7-channel LDO　　The DIO8018 is a PMIC with an integrated 7-channel LDO. It has a 2-channel low-dropout LDO for high-current power supply (LDO1/2 output current up to 1.5 A, can power the DVDD of a high-pixel camera) and multi-channel high-voltage power supply for noise sensitive power supply PSRR LDO power rail (Vsys to Vout of LDO3-7, PSRR can reach more than 92dB at 1KHz, which can power the AVDD of the camera).　　The DIO8010 is a PMIC with an integrated 7-channel LDO. It has a 2-channel, low-dropout LDO for high-current power supplies and a multi-channel, high PSRR, LDO power rail for noise-sensitive power supplies. The LDO 1/2 has an output current of up to 1.5 A and can supply the DVDD of a high-pixel camera. The PSRR of LDO 3 to 7, which is Vsys to Vout, can reach more than 92 dB at 1kHz.
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Release time：2023-02-16 15:25 reading：1885 Continue reading>>

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