Details

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BUY ULN2003A https://www.utsource.net/itm/p/12598589.html

Parameter	Description	Min	Typ	Max	Unit
Number of Darlington Pairs	-	7	-	-	-
Continuous Collector Current (IC)	Per Darlington Pair	-	500	-	mA
Peak Collector Current (IC)	Per Darlington Pair	-	600	-	mA
Total Package Power Dissipation	-	-	-	800	mW
Storage Temperature Range	-	-40	-	150	掳C
Operating Temperature Range	-	0	-	70	掳C
Input Voltage (VI)	-	-0.3	-	5.5	V
Input Current (II)	-	-	25	-	渭A
Output Saturation Voltage (VCE(sat))	IC = 100mA, VI = 5V	-	1.0	-	V
Leakage Current (ICEO)	-	-	100	-	nA
Isolation Voltage	Between Input and Output	-	-	1500	Vrms

Instructions for Using ULN2003A:

1. Power Supply:

   • Connect the power supply to the VCC and GND pins. The typical operating voltage range is from 5V to 50V.

2. Input Connections:

   • Connect the input signals to the IN1 to IN7 pins. These inputs can be driven by TTL or CMOS logic levels.
   • Ensure that the input voltage does not exceed the maximum rating of 5.5V.

3. Output Connections:

   • Connect the load to the OUT1 to OUT7 pins. Each output can handle a continuous current of up to 500mA and a peak current of up to 600mA.
   • Use external flyback diodes if driving inductive loads to protect the Darlington pairs from back EMF.

4. Common Emitter Configuration:

   • All the emitters of the Darlington pairs are internally connected to the COM pin. Connect this pin to the common ground of the load.

5. Heat Dissipation:

   • Ensure proper heat dissipation if the device is operating at high currents or in high ambient temperatures. The total package power dissipation should not exceed 800mW.

6. Temperature Considerations:

   • The operating temperature range is from 0掳C to 70掳C. Store the device within the storage temperature range of -40掳C to 150掳C.

7. Isolation:

   • The device provides isolation between the input and output with a minimum isolation voltage of 1500Vrms.

8. Handling:

   • Handle the device with care to avoid static damage. Use appropriate ESD protection measures during handling and installation.

9. Testing:

   • Before finalizing the design, test the circuit under all expected operating conditions to ensure reliable performance.

(For reference only)