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1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
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Description
LM134/LM234/LM334 3-Terminal Adjustable Current Sources
Package: TO-92
No of Pins: 3
Qty per Container: 1800/Box
All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！
| Parameter | Symbol | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Operating Current | Iadj | 20 | - | 100 | μA | |
| Operating Voltage Range | Vadj | 1.2 | - | 40 | V | |
| Temperature Coefficient | Tc | - | 50 | - | ppm/°C | |
| Output Impedance | Zout | - | 0.25 | - | Ω | |
| Power Dissipation | Pd | - | 625 | - | mW | |
| Storage Temperature | Tstg | -65 | - | 150 | °C | |
| Junction Temperature | Tj | -65 | - | 150 | °C |
Circuit Configuration:
Setting the Current:
Power Supply:
Thermal Management:
Storage and Handling:
Testing and Troubleshooting:
Applications:
By following these instructions, you can effectively use the LM334Z/NOPB in your electronic designs.
(For reference only)| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $2.45880 | US $2.21292 | US $2.21292 |
| ≥5: | US $1.63920 | US $1.47528 | US $7.37640 |
| ≥10: | US $1.47528 | US $1.32775 | US $13.27750 |
| ≥20: | US $1.43430 | US $1.29087 | US $25.81740 |
| ≥50: | US $1.39332 | US $1.25399 | US $62.69950 |
| ≥100: | US $1.35234 | US $1.21711 | US $121.71100 |
| ≥200: | US $1.31136 | US $1.18022 | US $236.04400 |
| ≥500: | US $1.29497 | US $1.16547 | US $582.73500 |
| ≥1000: | US $1.27038 | US $1.14334 | US $1143.34000 |
Substitute (equivalent) Product
| Product Name | Description |
|---|---|
| LM317 | Adjustable 3-terminal positive voltage regulator capable of supplying more than 1.5A over an output voltage range of 1.2V to 37V. |
| LT1021 | Precision adjustable shunt regulator with a very low temperature coefficient and high accuracy. |
| TL431 | Programmable precision reference with a true three-terminal adjustable shunt regulator capable of providing accurate regulation with supply currents up to 100mA. |
| LM336 | Precision adjustable Zener shunt regulator designed for use as a precision programmable reference. |
| LM4040 | Precision shunt voltage reference with a low dropout voltage and excellent temperature stability. |
Product Usage
The LM334Z/NOPB is a precision programmable current source and can be used in a variety of circuits where a stable and precise current is required. Here are some common applications and circuits that might use the LM334Z/NOPB:
Temperature Compensation Circuits:
LED Drivers:
Reference Current Sources:
Battery Charging Circuits:
Transducer Interfaces:
Logarithmic Amplifiers:
Current-to-Voltage Converters:
Precision Voltage References:
Analog-to-Digital Converter (ADC) Calibration:
Signal Conditioning Circuits:
Here’s a simple example of how the LM334Z can be used as a constant current source for driving LEDs:
Required+Vcc
|
|---[R1]---(+)---[LED]---(-)---GND
| |
| [LM334Z]
| |
GND
The current ( I ) through the LED can be calculated using the formula: [ I = \frac{2.5 \text} ]
Where 2.5 V is the reference voltage across the LM334Z when it is properly biased.
If you want to drive an LED with a constant current of 10 mA, you would choose ( R1 ) as follows: [ R1 = \frac{2.5 \text}{10 \text} = 250 \Omega ]
This circuit ensures that the LED receives a stable and precise current, regardless of variations in the supply voltage or temperature.
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| Flag | Country | Estimated Delivery Time | Minimum First Weight Cost | ||
|---|---|---|---|---|---|
| Express | Standard Shipping | Express (0.5kg) | Standard Shipping (0.05kg) | ||
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Returns are normally accepted when completed within 90 days from the date of the parcel delivered.
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Warranty
All UTSOURCE purchases have a 90 days money back return policy, plus a 100 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
LM334Z/NOPB
LM334Z/NOPB has several brands around the world that may have alternate names for LM334Z/NOPB due to regional differences or acquisition. LM334Z/NOPB may also be known as the following names:
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