74HC00D, 653 logic IC_TPS62237DRYR introduction

The low IQ of the TPS62840 enables 80% efficiency at 1-µA loads, 30% higher than comparable devices in the industry. . Longer battery life and very high light load efficiency: Lower IQ consumption provides longer IQ for very light loads (below 100µA) and systems operating primarily in standby/factory mode (no switching) battery life.

The charger's integrated dual input selector supports multiple power sources including wireless, USB, barrel jack and solar charging, while providing fast charging - up to 97% efficiency at 30 W. The BQ25790 and BQ25792 offer the flexibility of one- to four-cell charging, are compatible with both USB Type-C and USB PD input standards, and charge currents up to 5 A over the entire input voltage range (3.6 V to 24 V).

74HC00D, 653 Logic IC_TPS62237DRYR

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We are passionate about reducing the cost of electronics and making the world a better place through semiconductor technology. Today, each generation of innovation builds on the previous generation, making our technology smaller, more efficient, more reliable, and more affordable - opening up new markets and enabling semiconductors to be widely used in electronics, This is the advancement of engineering. This is exactly what we have been doing for decades and now.

Flexible VIN broadens application range: The TPS62840 has a wide input voltage range of 1.8VIN-6.5VIN and accepts a variety of chemistries and configurations, such as two lithium-manganese dioxide (2s-LiMnO2) cells in series , single-cell lithium thionyl chloride (1xLiSOCL2) batteries, four- and two-cell alkaline batteries, and lithium polymer batteries (Li-Po).

Thanks to these features and its selectable functions, the TPS62840 helps engineers overcome key design challenges in many battery-operated, continuous-run industrial and personal electronics applications, including narrowband IoT, grid infrastructure equipment, and renewable energy. Wearables, they all require greater flexibility and precision, wider wireless range, and reduced electromagnetic interference (EMI).

In order to gain an in-depth understanding of TI's new breakthrough in BAW technology, let's start with the principle of BAW filter: . For the first time in the industry, TI uses this technology for integrated clock functions. • In the past, BAW resonator technology has been used to filter signals in communication technologies such as smartphones.

74HC00D, 653 Logic IC_TPS62237DRYR

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One way is to form a Bragg reflector under the oscillating structure to reflect sound waves into the piezoelectric layer. The overall effect of this structure is equivalent to contact with air, and most of the sound waves are reflected back. This structure is called BAW-SMR (Solidly Mounted Resonator), as shown below. The reflector consists of several layers of alternating high and low impedance layers. For example, the first layer has a large acoustic wave impedance, the second layer has a small acoustic wave impedance, and the third layer has a large acoustic wave impedance, and the thickness of each layer is λ/4 of the acoustic wave, so that most of the wave will be reflected back and superimposed with the original wave.

TPS65400RGZR TPS65400RGZT TPS92515QDGQRQ1 TPS92515QDGQTQ1 TPS560430XFDBVT.

The technology, which also enables high-precision and robust communication between IoT devices, can now be developed in a less bulky form, said Kim Wong, vice president of high-speed data and clocking at TI.

"TI has been involved in MEMS for years. However, converting electrical energy to mechanical acoustics while keeping the signal stable and robust within a clean clock is not easy. When asked why no one in the industry has built something like a BAW resonator , Upton said, "It's very difficult to develop.

74HC00D, 653 Logic IC_TPS62237DRYR

Compared with BAW-SMR, a smaller part of the membrane type is in contact with the underlying substrate, which is not easy to dissipate heat. However, the thin film structure needs to be strong enough to be unaffected by subsequent processes.

Ladder type can be used on single-ended (single-ended/unbalanced) and differential (balanced) signals, while lattice type is more suitable for differential (balanced) signals.

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