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首页 > 电子元器件选型 > 电源电路 > 参考电压源

LM4040BIM3-2.0/NOPB

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LM4040BIM3-2.0/NOPB
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IC 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.048 V, PDSO3, PLASTIC, TO-236AB, SOT-23, 3 PIN, Voltage Reference

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¥9.919
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生命周期状态： Transferred
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TIDA-00912 Shunt-Based High Current Measurement (200-A) Reference Design with Reinforced Isolation Amplifier | TI.com
TIDA-00912: The TIDA-00912 TI Design provides a complete reference solution for isolated current measurement using external shunts, reinforced isolation amplifiers, and isolated power supply. The shunt voltage is limited to 25 mV max. This reduces power dissipation in the shunt to enable a high current measurement range up to 200 A. Shunt voltage is amplified by a instrumentation amplifier configuration with a gain of 10 to match the input range of isolation amplifier for better signal to noise ratio. The output of isolation amplifier is level shifted and scaled to fit the complete input range of 3.3-V ADCs. This design uses free running transformer driver operating at 410 kHz for generating isolated supply voltage in a small form factor to power high voltage side of the circuit.
PMP10596 24V Input 700mA Output Buck Regulator LED Driver - Reference Design | TI.com
PMP10596: The PMP10596 reference design is an LED driver based on SIMPLE SWITCHER® LM46002 buck regulator. The driver board takes 24V +/-25% input voltage and supplies700mA output current to drive up to 4 LEDs in series. The LM46002 is a 60V, 2A synchronous buck regulator with integrated FETs, and in this design it is configured as a high efficiency constant current converter. This is accomplished by using the voltage across a current sense resistor as the feedback signal. To reduce the sense resistor power loss, a 2V voltage reference is used to bias the FB pin via a resistor network, and, as a result, the equivalent feedback reference voltage becomes 0.35V, lower than the 1V feedback of the LM46002. The reference board employs 3 dimming schemes, which allows the output current to be adjusted via the potentiometer, an analog voltage or a PWM signal. It also offers easy and flexible control to dim the LED brightness and adds output overvoltage protection from LED open-circuit failure.
TIDA-00777 Active Integrator for Rogowski Coil Reference Design with Improved Accuracy for Relay and Breaker | TI.com
TIDA-00777: The TIDA-00777 TI Design shows an active integrator design that covers wide input current range for Rogowski Coil with excellent accuracy, linearity, stability and repeatability. The integrator uses a precision amplifier with very low offset and temperature drift. Two configurations of the integrator are shown; one for precision measurement with less than 3O phase error and the other for fast response time (<15ms RC). While the output signal is bipolar, optional level shifting stage can be used when unipolar output is required.
24V Input 700mA Output Buck Regulator LED Driver - Reference Design
PMP10596: The PMP10596 reference design is an LED driver based on SIMPLE SWITCHER® LM46002 buck regulator. The driver board takes 24V +/-25% input voltage and supplies700mA output current to drive up to 4 LEDs in series. The LM46002 is a 60V, 2A synchronous buck regulator with integrated FETs, and in this design it is configured as a high efficiency constant current converter. This is accomplished by using the voltage across a current sense resistor as the feedback signal. To reduce the sense resistor power loss, a 2V voltage reference is used to bias the FB pin via a resistor network, and, as a result, the equivalent feedback reference voltage becomes 0.35V, lower than the 1V feedback of the LM46002. The reference board employs 3 dimming schemes, which allows the output current to be adjusted via the potentiometer, an analog voltage or a PWM signal. It also offers easy and flexible control to dim the LED brightness and adds output overvoltage protection from LED open-circuit failure.
TIDA-00835 High Accuracy ±0.5% Current and Isolated Voltage Measurement Ref Design Using 24-Bit Delta-Sigma ADC | TI.com
TIDA-00835: The TIDA-00835 reference design allows for accurate voltage and current measurement using a bipolar input configuration by incorporating a four- channel, 24-bit simultaneously-sampling differential input Delta-Sigma ADC over wide dynamic range. The ADC is configured to measure ±2.5 V bipolar input. The inputs are scaled to ADC measurement range of ±2.5V using a fixed gain amplifier. This AFE chains two ADCs together using a common external clock to expand the number of input channels to eight while simultaneously sampling all of the input channels. By having more measurement channels per module, overall system cost is reduced.
TIDA-00810 Reference Design to Measure AC Voltage & Current in Protection Relays w/Delta-Sigma Chip Diagnostics | TI.com
TIDA-00810: The TIDA-00810 reference design accurately measures analog inputs performance and includes chip diagnostics to help identify power systems failures early by using a highly accuracy AC voltage and current measurement analog front end (AFE) and a four-channel, 24-bit simultaneously-sampling differential input Delta-Sigma ADC for measurement over wide dynamic range. The ADC is configured to measure 0-5 V unipolar. The inputs are scaled to ADC measurement range using a fixed gain amplifier with 2.5 V DC output level shift. The AFE can be used to measure output of a current transformer, potential divider with analog isolation and Rogowski active integrator. The AFE uses 10-Bit low resolution successive approximation register (SAR) ADC in parallel with a 24 bit ∑-∆ ADC for ADS131A04 diagnostics.
TIDA-00445 Shunt-Based 200A Peak Current Measurement Reference Design Using Isolation Amplifier | TI.com
TIDA-00445: The TIDA-00445 TI design provides a reference solution for isolated current measurement using shunt and isolated amplifier. By limiting the shunt voltage to 25mV, this design is able to reduce power dissipation in the shunt and achieves a high current measurement range of up to 200A. Shunt voltage is further amplified by precision Opamps in instrumentation amplifier based configuration with a gain of 10 to match the input range of isolation amplifier. The output of isolation amplifier is level shifted and scaled to utilize the complete input range of 3.3v ADC. This design uses free running transformer driver for generating isolated supply voltage for the high voltage side of the circuit. Small form factor for the power supply is achieved by the operation of driver at 400 KHz.
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