Details

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BUY ULQ2803A https://www.utsource.net/itm/p/12608734.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Continuous	4.5	-	5.5	V
Output Current (Per Channel)	IO	Continuous	-	500	-	mA
Peak Output Current (Per Channel)	IOPK	Pulse Width ≤ 1 ms, Duty Cycle ≤ 5%	-	1000	-	mA
Maximum Power Dissipation	PD	TA = 25°C	-	1000	-	mW
Operating Temperature Range	TA	-	-40	-	85	°C
Storage Temperature Range	TSTG	-	-65	-	150	°C
Input High Voltage	VIH	-	2.0	-	5.5	V
Input Low Voltage	VIL	-	0.0	-	0.8	V
Output Voltage (High)	VOH	IO = -20 mA	4.5	-	5.0	V
Output Voltage (Low)	VOL	IO = 500 mA	0.4	-	1.0	V
Propagation Delay Time	tpd	VCC = 5V, IO = 500 mA	-	50	-	ns

Instructions for Using the ULQ2803A:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 4.5V to 5.5V.
   • Use a stable power source to avoid fluctuations that could affect performance.

2. Output Current:

   • The maximum continuous output current per channel is 500 mA.
   • For peak currents up to 1000 mA, ensure the pulse width does not exceed 1 ms and the duty cycle is no more than 5%.

3. Temperature Considerations:

   • The operating temperature range is from -40°C to 85°C.
   • Store the device in temperatures ranging from -65°C to 150°C.

4. Input Levels:

   • Input high voltage (V_IH) should be between 2.0V and 5.5V.
   • Input low voltage (V_IL) should be between 0.0V and 0.8V.

5. Output Levels:

   • When sourcing current (I_O = -20 mA), the output high voltage (V_OH) will be between 4.5V and 5.0V.
   • When sinking current (I_O = 500 mA), the output low voltage (V_OL) will be between 0.4V and 1.0V.

6. Propagation Delay:

   • The propagation delay time (t_pd) is typically 50 ns under standard conditions (V_CC = 5V, I_O = 500 mA).

7. Handling and Storage:

   • Handle the device with care to avoid static damage.
   • Store in a dry environment to prevent moisture damage.

8. Mounting and PCB Design:

   • Ensure proper heat dissipation by using a suitable PCB layout and heatsink if necessary.
   • Follow recommended PCB design guidelines to minimize electromagnetic interference (EMI).

9. Testing:

   • Test the device under typical operating conditions to ensure it meets the specified parameters.
   • Use appropriate test equipment to measure output voltages and currents accurately.

10. Safety:

    • Always follow safety guidelines when handling electronic components.
    • Avoid exceeding the maximum ratings to prevent damage to the device.

(For reference only)