Details

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BUY TOP256EN https://www.utsource.net/itm/p/12606433.html

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Input Voltage	VIN	85	-	265	VAC
Output Voltage	VOUT	3.3	-	15	VDC
Output Current	IOUT	-	1.5	2.0	A
Switching Frequency	fSW	70	-	140	kHz
Efficiency	畏	-	90	-	%	@ VOUT = 5V, IOUT = 1A
Power Factor	PF	-	0.95	-		@ VOUT = 5V, IOUT = 1A
No-Load Power Consumption	PNL	-	0.1	-	W
Inrush Current	IINR	-	10	-	A
Operating Temperature	Toper	-40	-	85	掳C
Storage Temperature	Tstg	-40	-	125	掳C
Humidity	RH	-	-	95	%	Non-condensing
Protection Features	-	-	OVP, UVP, SCP, OTP	-	-

Instructions for Using TOP256EN

1. Input Connection:

   • Connect the AC input voltage (85-265 VAC) to the designated input terminals.
   • Ensure proper polarity and use appropriate wire gauges to handle the current.

2. Output Connection:

   • Connect the load to the output terminals.
   • Ensure the load is within the specified output voltage and current ratings.

3. Mounting:

   • Mount the device on a suitable heatsink or PCB with adequate thermal management.
   • Ensure the operating temperature does not exceed 85掳C.

4. Protection Settings:

   • Overvoltage Protection (OVP): The device will shut down if the output voltage exceeds the safe limit.
   • Undervoltage Protection (UVP): The device will shut down if the input voltage drops below the safe limit.
   • Short Circuit Protection (SCP): The device will limit the output current and shut down if a short circuit is detected.
   • Overtemperature Protection (OTP): The device will shut down if the internal temperature exceeds the safe limit.

5. Inrush Current Management:

   • Use an inrush current limiter (e.g., NTC thermistor) to reduce the initial surge current during startup.

6. EMI/EMC Compliance:

   • Add appropriate EMI filters and components to meet regulatory standards.

7. Testing:

   • Before final installation, test the device under various conditions to ensure it meets the required performance specifications.

8. Storage:

   • Store the device in a dry environment with temperatures between -40掳C and 125掳C to prevent damage.

9. Handling:

   • Handle the device with care to avoid physical damage and static discharge. Use anti-static wrist straps and mats when handling sensitive components.

(For reference only)