Selection of driving power supply for LED light bar dimming application

LED is more and more widely used in lighting and lighting, which is superior to traditional lighting. Apart from improving the quality of life, improving th...

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5V system and 3.3V system level conversion

When designing a system circuit with MCU or arm, we often meet that the VCC of MCU is 3.3V, but the peripheral circuit needs 5V. Sometimes it‘s the other w...

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Analysis of problems in TWS earphone design

1. The two CC1 and CC2 pins of type-C USB in the charging bin cannot be short circuited together, but should be connected to the pull-down resistance indepe...

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Semiconductor silicon wafer is in short supply, and the price will rise all the ...

There are many kinds of lithium batteries, including batteries composed of round cells like 18650 and lithium batteries composed of polymers. If they are di...

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Basic points and application method of analog voltage comparator: from level det...

When designers want to collect more data at the edge of Internet of things (IOT), industrial Internet of things (iiot), artificial intelligence (AI) and machine...

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Boost and depressurization of lithium battery and voltage rise and fall method o...

1. Voltage rise and fall test of lithium battery First, let the lithium battery drop to 3.3V through the step-down chip, then supply power to the MCU and Bl...

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Application and types of operational amplifiers

What is an operational amplifier? Operational amplifier is a circuit unit with high magnification, which has the characteristics of strong load carrying cap...

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Explain the principle and difference between DC-DC and LDO

LDO： The low dropout linear voltage regulator, hence its name, means linear voltage regulator. It can only be used in step-down applications, that is, the o...

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PE3400 N channel enhanced power MOSFETGO function description

The PE3400 is an N-channel enhanced power MOSFET. The PE3400 is provided with advanced groove technology, good RDS (ON), low gate charge and gate operation, and...

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CST4054B a perfect single lithium ion battery constant current/constant voltage ...

CST4054B is a perfect single-chip constant current/constant voltage linear power management chip for lithium ion battery. The CST4054B‘s thin size and small ou...

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TC618CS single channel DC positive and negative motor drive chip function introd...

TC618CS single-channel DC forward and reverse motor drive chip, TC618CS provides an integrated brushless DC motor drive solution for battery-powered toys, low-v...

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XS9110A PCB Layout suggestions

XS9110A PCB Layout suggestions In most applications, EMC requirements can be met using a magnetic bead filter. However, the switching edge of class D power ampl...

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XS9110A a low EMI, no filter, AB/D optional audio power amplifier function intro...

XS9110A is a low EMI, filter free, class AB/D optional audio power amplifier. At 14.4V operating voltage, the maximum driving power is 25W (VDD=14.4V,4 ω BTL lo...

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CST118F application reference circuit diagram and PCB wiring guidance

Note: in different applications, only one C1 and C2 can be considered: in 3V applications, one 1uF or above is recommended; A 4.7uF or above is recommended for ...

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XS4150B a single channel audio amplifier IC with off mode function introduction

XS4150B is a single channel audio amplifier IC with off mode. Operating at 5.5V input voltage, the average power on the load (4 ω) is 3W and the distortion does...

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Introduce you to the CST6508 dual channel brushless DC motor driver chip use pre...

CST6508 Special notes: CST6508 power supply to ground generally recommended 104 capacitor. If the power supply fluctuates greatly or the output drive current i...

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lIntroduce you to LS2101A capacitive touch detection chip PCB design considerati...

1. The size of the touch induction panel should be designed according to the panel medium, panel thickness and other parameters. 2. Induction wire: on PCB, the ...

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XS9908 a high efficiency, high PWM switching frequency DC-DC converter function ...

XS9908 is a high efficiency, high PWM switching frequency DC-DC converter. The chip has a built-in 4A, 0.06ohm power switch, which can provide up to 18V output ...

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ZC8809 a power up to 5.4W AB/D switching audio power amplifier function introduc...

ZC8809 overview: The ZC8809 is an AB/D switched audio power amplifier with automatic gain control and up to 5.4W power based on charge pump boost technology. ZC...

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XS4890B a single channel audio amplifier IC with off mode function introduction

XS4890B is a single channel audio amplifier IC with off mode. Operating at 5V input voltage, the average power on the load (4 ω) is 2.5W and the distortion does...

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