Details

---

BUY TOP202YN https://www.utsource.net/itm/p/481967.html
Three-terminal Off-line PWM Switch

Below is the parameter table and instructions for the TOP202YN, a high-voltage power switch from Power Integrations.

TOP202YN Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Input Voltage	VIN	180	-	375	VDC	-
Output Voltage	VOUT	-	5	-	VDC	-
Output Current	IOUT	-	200	-	mA	-
Switching Frequency	fSW	-	132	-	kHz	-
Quiescent Current	IQ	-	4	-	mA	VCC = 5V, no load
Maximum Junction Temperature	TJ(MAX)	-	-	150	°C	-
Storage Temperature Range	TSTG	-40	-	125	°C	-
Operating Temperature Range	TOPR	-40	-	85	°C	-
Thermal Shutdown Threshold	TSD	-	160	-	°C	-
Start-Up Time	tSTART	-	200	-	ms	VIN = 180V, VOUT = 5V
Protection Features	-	-	-	-	-	Overvoltage, Overcurrent, Short-circuit

Instructions for Using TOP202YN

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the high-voltage terminal.
   • Ensure the input voltage is within the specified range (180V to 375V DC).

2. Output Configuration:

   • Connect the output terminals to the load.
   • The output voltage (VOUT) is typically set to 5V DC.
   • The maximum output current (IOUT) is 200mA.

3. Thermal Management:

   • Ensure proper heat dissipation by mounting the device on a heatsink if necessary.
   • Monitor the junction temperature (TJ) to avoid exceeding the maximum limit of 150°C.

4. Protection Circuits:

   • The device includes built-in protection features such as overvoltage, overcurrent, and short-circuit protection.
   • These protections will automatically shut down the device if any fault conditions are detected.

5. Operating Temperature:

   • Operate the device within the specified temperature range (-40°C to 85°C).
   • Avoid prolonged exposure to temperatures above 85°C to prevent thermal stress.

6. Start-Up Sequence:

   • The device has a start-up time of approximately 200ms when the input voltage is applied.
   • Ensure that the load is stable and ready to accept power after this start-up period.

7. Storage and Handling:

   • Store the device in a dry environment with temperatures between -40°C and 125°C.
   • Handle the device with care to avoid damage to the pins and internal components.

8. Testing and Troubleshooting:

   • Use a multimeter to verify the output voltage and current.
   • If the device fails to start or operate correctly, check the input voltage, connections, and load conditions.

By following these instructions, you can ensure reliable operation and longevity of the TOP202YN in your power supply design.

(For reference only)