Details

---

BUY TOP256YN https://www.utsource.net/itm/p/12598563.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	100	-	375	V	Operating input voltage range
Output Voltage	VOUT	-	5.0	-	V	Nominal output voltage (set by external components)
Output Current	IOUT	-	2.5	-	A	Maximum continuous output current
Switching Frequency	fSW	-	132	-	kHz	Typical switching frequency
Efficiency	畏	-	85	-	%	Typical efficiency at full load
Power Dissipation	PD	-	1.5	-	W	Maximum power dissipation
Junction Temperature	TJ	-40	-	150	掳C	Operating junction temperature range
Storage Temperature	TSTG	-55	-	150	掳C	Storage temperature range
Thermal Resistance	R胃JC	-	2.5	-	掳C/W	Junction-to-case thermal resistance
Isolation Voltage	VISO	-	4000	-	Vrms	Minimum isolation voltage

Instructions for Use

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the specified range of 100V to 375V.
   • Use appropriate input filtering and protection circuits to prevent voltage spikes and transients.

2. Output Voltage (V_OUT):

   • Set the output voltage using external components such as resistors and capacitors.
   • Verify the output voltage with a multimeter to ensure it meets the required specifications.

3. Output Current (I_OUT):

   • The device can provide up to 2.5A of continuous output current.
   • Use a heatsink if operating near the maximum current to manage heat dissipation.

4. Switching Frequency (f_SW):

   • The typical switching frequency is 132kHz.
   • Adjust the frequency if necessary by modifying the external timing components.

5. Efficiency (畏):

   • The typical efficiency at full load is 85%.
   • Monitor the efficiency under different load conditions and adjust the design if needed to optimize performance.

6. Power Dissipation (P_D):

   • The maximum power dissipation is 1.5W.
   • Ensure adequate cooling, especially when operating at high power levels.

7. Junction Temperature (T_J):

   • The operating junction temperature range is -40掳C to 150掳C.
   • Avoid exceeding the maximum junction temperature to prevent damage to the device.

8. Storage Temperature (T_STG):

   • The storage temperature range is -55掳C to 150掳C.
   • Store the device in a controlled environment to avoid exposure to extreme temperatures.

9. Thermal Resistance (R_胃JC):

   • The junction-to-case thermal resistance is 2.5掳C/W.
   • Use a heatsink or other cooling methods to reduce thermal resistance and improve heat dissipation.

10. Isolation Voltage (V_ISO):

    • The minimum isolation voltage is 4000Vrms.
    • Ensure proper insulation and spacing to maintain this isolation voltage and prevent electrical breakdown.

For detailed application notes and further information, refer to the datasheet provided by the manufacturer.

(For reference only)