Details

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BUY ULN2803AFWG ULN2803AG https://www.utsource.net/itm/p/9477498.html

Parameter	Symbol	Min	Typical	Max	Unit
Supply Voltage	VCC	4.5	-	50	V
Input Voltage (High)	VIH	2.0	-	50	V
Input Voltage (Low)	VIL	0	-	1.5	V
Output Current (Sink)	IO	-	-	500	mA
Output Voltage (Saturation)	VCESAT	-	1.0	1.4	V
Operating Temperature	Toper	-40	-	105	掳C
Storage Temperature	Tstg	-65	-	150	掳C

Instructions for Use:

1. Power Supply:

   • Connect the VCC pin to the positive supply voltage (4.5V to 50V).
   • Connect the GND pin to the common ground.

2. Input Signals:

   • Apply logic high (VIH) or low (VIL) signals to the input pins to control the outputs.
   • Ensure input voltages do not exceed the supply voltage VCC.

3. Output Configuration:

   • The ULN2803A is designed to sink current. Connect the load between the output pins and the positive supply.
   • Do not exceed the maximum output current (500mA) per channel.

4. Heat Dissipation:

   • For high current applications, ensure adequate heat dissipation by using a heatsink if necessary.
   • Monitor the temperature to avoid exceeding the operating temperature range (-40掳C to 105掳C).

5. Storage and Handling:

   • Store the device within the storage temperature range (-65掳C to 150掳C).
   • Handle with care to avoid static damage. Use ESD protection when handling the device.

6. Common Applications:

   • Driving relays, solenoids, and other inductive loads.
   • Interface between logic circuits and higher power devices.
   • Motor control and LED driving.

7. Pin Configuration:

   • Refer to the datasheet for the specific pinout diagram to ensure correct connections.

8. Testing and Troubleshooting:

   • Verify all connections before applying power.
   • Use a multimeter to check for proper operation and continuity.
   • If issues arise, check for short circuits, incorrect polarity, or damaged components.

(For reference only)