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Texas Instruments LM285DR-2-5
- Part No.:
- LM285DR-2-5
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet:
-
LM285DR-2-5.pdf
- Description:
- IC VREF SHUNT 1.5% 8SOIC
- In Stock:
- 3254
- Quantity:
- Add To Cart
- For more detailed including pricing and shipping
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LM285DR-2-5 Specifications
- Packaging:Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
- Series:-
- ProductStatus:Active
- ReferenceType:Shunt
- OutputType:Fixed
- Voltage-Output(Min/Fixed):2.5V
- Voltage-Output(Max):-
- Current-Output:20 mA
- Tolerance:±1.5%
- TemperatureCoefficient:20ppm/°C Typical
- Noise-01Hzto10Hz:-
- Noise-10Hzto10kHz:120µVrms
- Voltage-Input:-
- Current-Supply:-
- Current-Cathode:20 µA
- OperatingTemperature:-40°C ~ 85°C (TA)
- MountingType:Surface Mount
LM285DR-2-5 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including LM285DR-2-5 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for LM285DR-2-5 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.
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LM285DR-2-5 information
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LM285DR-2-5 Typical application Circuitry
LM285DR-2-5 is a precision micropower shunt voltage reference, providing a fixed 2.5V output voltage with high stability and low temperature coefficient. This device is commonly used in power supplies, battery-operated equipment, and precision voltage regulation applications due to its low dynamic impedance and wide operating current range.
Application Scenarios for LM285DR-2-5
- Battery-Powered Devices: For accurate battery voltage monitoring and power management.
- Voltage Monitoring Circuits: In systems requiring precise voltage detection and control.
- Adjustable Power Supplies: As a reference voltage to set output levels in adjustable power supply circuits.
- Data Acquisition Systems: To supply a steady voltage reference for the conversion of analog to digital data.
Parameter Features of LM285DR-2-5
- Fixed Output Voltage: Provides a precise 2.5V reference voltage, ideal for many circuit designs.
- Low Temperature Coefficient: Provides less voltage variance as temperature changes, improving the stability of the system. - Wide Operating Current Range: Compatible with a broad range of currents, providing flexibility in various applications.
- Small Package Size: Because it comes in a small package, it may fit in with smaller electrical gadgets.
Application Example: Precision Voltage Monitoring Circuit
Designing a Voltage Monitoring Circuit Using LM285DR-2-5
To create a circuit that precisely monitors an input voltage and triggers a signal when the voltage falls below a certain threshold, follow these detailed instructions focusing on key pin connections and design considerations:
- Reference Voltage Setup: Connect the anode of LM285DR-2-5 to ground and its cathode to a positive voltage supply through a resistor. This configuration sets up a stable 2.5V reference voltage at the cathode.
- Voltage Divider for Input Monitoring: Create a voltage divider with two resistors connected in series from the voltage source to be monitored to ground.Connect the non-inverting input of an operational amplifier (op-amp) by tapping the midway.
- Comparator Configuration: Use the 2.5V reference from LM285DR-2-5 as the inverting input to the op-amp.In this setup, the op-amp serves as a comparator.
- Output Signal: Connect the output of the op-amp to an LED (with a series current-limiting resistor) or to a digital input of a microcontroller for voltage level detection. When the monitored voltage drops below the threshold set by the voltage divider, the op-amp output will change state, activating the LED or sending a signal to the microcontroller.
Design Considerations for LM285DR-2-5
When designing with LM285DR-2-5, consider the following:
- Decoupling Capacitors: Include capacitors close to the LM285DR-2-5 to filter out noise and provide stability, especially if the device is located far from the power supply.
- Resistor Values: Choose resistor values for the voltage divider and the connection to LM285DR-2-5 carefully to ensure they work within the device's operating current range while providing the desired threshold voltage.
- Temperature Variations: Although LM285DR-2-5 has a low temperature coefficient, consider the entire circuit's temperature dependency, including the op-amp and resistors, to maintain overall precision.
- Load Considerations: Ensure the load connected to the op-amp output does not exceed its driving capability. Buffering might be necessary for heavy loads.
By carefully implementing these design strategies, LM285DR-2-5 can be effectively used in a precision voltage monitoring circuit, providing a reliable and accurate threshold detection mechanism.
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6. What is the process for return or replacement of LM285DR-2-5?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM285DR-2-5 we delivered, we will accept the replacement or return of the LM285DR-2-5 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LM285DR-2-5.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as LM285DR-2-5 pin diagram, LM285DR-2-5 datasheet?
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