Details

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BUY LM339N https://www.utsource.net/itm/p/12543096.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	-	2.0	-	36	V
Input Voltage Range	VI	-	0	-	VCC - 1.5	V
Output Low Voltage	VOL	IO = 16 mA	0.1	-	-	V
Output High Voltage	VOH	IO = -0.5 mA	-	-	VCC - 1.5	V
Input Bias Current	IB	-	25	-	250	nA
Input Offset Current	IOS	-	-10	0	10	nA
Differential Input Voltage	VID	-	-30	-	30	mV
Common-Mode Rejection Ratio	CMRR	-	80	-	-	dB
Slew Rate	SR	-	-	0.3	-	V/μs
Operating Temperature Range	TA	-	-40	-	125	°C

Instructions for Using the LM339N

1. Power Supply:

   • The LM339N can operate with a single supply voltage ranging from 2.0V to 36V.
   • Ensure that the power supply is stable and within the specified range to avoid damage to the device.

2. Input Voltage:

   • The input voltage range should be between 0V and V_CC - 1.5V.
   • Avoid exceeding these limits to prevent damage or incorrect operation.

3. Output Configuration:

   • The output of the LM339N is open-collector, which means it can only sink current.
   • Use a pull-up resistor to set the output high level. A typical value for the pull-up resistor is 1kΩ to 10kΩ.

4. Connecting the Comparator:

   • Connect the non-inverting input (pin 5, 6, 7, or 8) to the reference voltage.
   • Connect the inverting input (pin 2, 3, 4, or 9) to the signal to be compared.
   • Connect the output (pin 1, 12, 13, or 14) to the pull-up resistor and the load.

5. Ground and Power Connections:

   • Connect the ground pin (pin 11) to the system ground.
   • Connect the positive supply pin (pin 10) to the positive supply voltage.

6. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high temperatures or under high current conditions.
   • Use a heatsink if necessary to maintain the junction temperature within the operating range.

7. Handling Precautions:

   • The LM339N is sensitive to electrostatic discharge (ESD). Handle the device with care and use proper ESD protection measures.
   • Avoid exposing the device to excessive mechanical stress or environmental contaminants.

By following these instructions, you can ensure reliable and efficient operation of the LM339N comparator in your circuits.

(For reference only)