Details

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BUY UDN2981A. https://www.utsource.net/itm/p/12608122.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	Vcc	4.5	-	5.5	V
Output Current per Channel	IO	-	500	-	mA
Continuous Output Current	IOUT	-	300	-	mA
Peak Output Current	IPEAK	-	500	-	mA
Input Voltage (High)	VIH	2.0	-	5.5	V
Input Voltage (Low)	VIL	0	-	0.8	V
Input Current (High)	IIH	-	1	10	渭A
Input Current (Low)	IIL	-	1	10	渭A
Operating Temperature	Toper	-40	-	125	掳C
Storage Temperature	Tstg	-65	-	150	掳C
Thermal Resistance (胃JA)	胃JA	-	50	-	掳C/W

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the range of 4.5V to 5.5V.
   • Connect the Vcc pin to the positive supply and GND to the ground.

2. Input Signals:

   • Apply input signals to the IN1 to IN8 pins.
   • For a high logic level, ensure the input voltage (VIH) is between 2.0V and 5.5V.
   • For a low logic level, ensure the input voltage (VIL) is between 0V and 0.8V.
   • The input current should not exceed 10渭A for both high and low levels.

3. Output Configuration:

   • The UDN2981A can drive up to 500mA peak current and 300mA continuous current per channel.
   • Ensure the load connected to each output does not exceed these limits.
   • Use appropriate heat sinking if operating at higher currents or temperatures.

4. Thermal Management:

   • The thermal resistance (胃JA) is typically 50掳C/W. Ensure adequate cooling if the device is expected to dissipate significant power.
   • Operate the device within the temperature range of -40掳C to 125掳C for optimal performance.

5. Storage:

   • Store the device in a dry environment with temperatures between -65掳C and 150掳C.

6. Handling:

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

7. Testing:

   • Before integrating the UDN2981A into a circuit, test it in a controlled environment to ensure proper functionality.

8. Application Notes:

   • Refer to the datasheet for detailed application notes and specific circuit configurations.
   • Consider using external components like flyback diodes for inductive loads to protect the outputs.

By following these guidelines, you can ensure reliable operation of the UDN2981A in your application.

(For reference only)