Details

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BUY ULN2004AFW https://www.utsource.net/itm/p/11246511.html

Parameter	Description	Value	Unit
Number of Darlington Pairs	Number of Darlington transistor pairs	7	-
Maximum Collector-Emitter Voltage (VCE)	Maximum voltage that can be applied between the collector and emitter	50	V
Maximum Emitter-Base Voltage (VEB)	Maximum voltage that can be applied between the emitter and base	5	V
Maximum Collector Current (IC)	Maximum current that can flow through the collector	500	mA
Maximum Power Dissipation (PTOT)	Maximum power dissipation per package	825	mW
Operating Temperature Range (TA)	Range of ambient temperatures for operation	-40 to 105	°C
Storage Temperature Range (TSTG)	Range of temperatures for storage	-65 to 150	°C
Input Clamping Diode	Presence of input clamping diodes	Yes	-
Output Clamp Diode	Presence of output clamp diodes	Yes	-
Isolation Voltage	Minimum isolation voltage between input and output	1500	VRMS

Instructions for Using ULN2004AFW:

1. Power Supply:

   • Ensure the supply voltage is within the specified range (V_CC = 5V typical).
   • Connect the positive terminal of the power supply to the V_CC pin and the negative terminal to the GND pin.

2. Input Connections:

   • Connect the input signals to the IN1 to IN7 pins.
   • Each input pin corresponds to one of the Darlington pairs.
   • Apply a logic high (typically 5V) to turn on the corresponding Darlington pair, and a logic low (0V) to turn it off.

3. Output Connections:

   • Connect the load to the OUT1 to OUT7 pins.
   • The load should be connected between the output pin and the positive supply (V_CC).
   • The load current should not exceed the maximum collector current (500mA).

4. Clamp Diodes:

   • The built-in clamp diodes protect against inductive flyback voltages.
   • Ensure that the load is properly connected to utilize these diodes effectively.

5. Heat Management:

   • If operating at or near the maximum power dissipation, consider using a heatsink.
   • Monitor the temperature to ensure it remains within the operating temperature range.

6. Handling Precautions:

   • Handle the device with care to avoid static damage.
   • Follow proper soldering techniques to prevent thermal shock and mechanical stress.

7. Storage:

   • Store the device in a dry, cool place within the specified storage temperature range.
   • Avoid exposure to extreme temperatures and humidity.

By following these guidelines, you can ensure reliable operation of the ULN2004AFW in your application.

(For reference only)