Details

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Parameter	Symbol	Min	Typical	Max	Unit
Operating Current	Iadj	10	-	100	渭A
Output Current	Iout	0.25	-	10	mA
Temperature Coefficient	Tc	-	50	-	ppm/掳C
Power Dissipation	Pd	-	150	-	mW
Operating Temperature	Topr	-40	-	125	掳C
Storage Temperature	Tstg	-65	-	150	掳C

Instructions for Using the LM334:

1. Basic Configuration:

   • The LM334 can be used as a precision current source or sink.
   • Connect the ADJ pin to a resistor (R) to set the output current.
   • For a current source, connect the positive supply to the OUT pin and the negative supply to the COM pin.
   • For a current sink, connect the negative supply to the OUT pin and the positive supply to the COM pin.

2. Setting the Output Current:

   • The output current (Iout) is determined by the formula: [ I_ = frac{V_} ]
   • Where ( V_ ) is approximately 64mV at room temperature.
   • Choose R such that: [ R = frac{V_}{I_} ]

3. Temperature Compensation:

   • The LM334 has a temperature coefficient of 50 ppm/掳C, which means the output current will vary slightly with temperature.
   • For applications requiring high stability over temperature, consider using a thermistor or other temperature compensation methods.

4. Power Dissipation:

   • Ensure the power dissipation does not exceed 150 mW to avoid overheating.
   • Calculate power dissipation (Pd) using: [ P_d = V_ times I_ ]

5. Operating and Storage Temperature:

   • The device operates reliably between -40掳C and 125掳C.
   • Store the device between -65掳C and 150掳C.

6. Handling Precautions:

   • Handle the LM334 with care to avoid static damage.
   • Use appropriate ESD protection when handling the device.

7. Package Information:

   • The LM334 is available in various packages, including TO-92, SOT-23, and others.
   • Refer to the datasheet for specific package dimensions and pinouts.

8. Testing and Troubleshooting:

   • Verify the correct operation by measuring the output current with a multimeter.
   • Check for proper connections and ensure the supply voltage is within the specified range.

(For reference only)