Details

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Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	80	-	750	V	Operating input voltage range
Output Power	POUT	-	132	-	W	Maximum output power
Switching Frequency	fSW	65	-	130	kHz	Adjustable switching frequency
Quiescent Current	IQ	-	4	-	mA	Typical quiescent current
Efficiency	η	-	92	-	%	Typical efficiency at full load
Standby Power	PSBY	-	0.1	-	W	Typical standby power consumption
Protection Features	-	-	-	-	-	Overvoltage protection (OVP), overcurrent protection (OCP), thermal shutdown (TSD)
Operating Temperature	TOPR	-40	-	125	°C	Operating temperature range
Storage Temperature	TSTG	-55	-	150	°C	Storage temperature range
Package Type	-	-	-	-	-	DIP-8 or SOIC-8

Instructions for Using VIPER27H

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the appropriate pin.
   • Ensure the input voltage is within the specified range (80V to 750V).

2. Output Configuration:

   • Set the output power to the desired level, up to a maximum of 132W.
   • Adjust the switching frequency using external components as per the datasheet recommendations.

3. Protection Circuits:

   • The VIPER27H includes built-in overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown (TSD).
   • No additional components are required for these protections.

4. Thermal Management:

   • Ensure adequate heat dissipation to keep the operating temperature within the specified range (-40°C to 125°C).
   • Use a heatsink if necessary, especially under high load conditions.

5. Standby Mode:

   • The device has a low standby power consumption of typically 0.1W.
   • Use the enable/disable pin to control the standby mode if needed.

6. Package Handling:

   • The VIPER27H is available in DIP-8 or SOIC-8 packages.
   • Handle the package with care to avoid damage to the pins and internal components.

7. Design Considerations:

   • Refer to the datasheet for detailed information on external component selection and layout guidelines.
   • Ensure proper PCB layout to minimize electromagnetic interference (EMI) and improve overall performance.

8. Testing and Validation:

   • Test the circuit under various load conditions to ensure it meets the design specifications.
   • Validate the protection features by simulating fault conditions.

For more detailed information, refer to the VIPER27H datasheet provided by STMicroelectronics.

(For reference only)