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SR087

Features: ·Effi cient operation without magnetics·No high voltage capacitors·Adjustable main output voltage (9V to 50V)·Additional 3.3V or 5V internal regulator·Up to 100mA combined output current·Single BOM for 120VAC/230VAC·Built-in soft start·Less than 200mW standby powerApplication·White goods...

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SeekIC No. : 004501898 Detail

SR087: Features: ·Effi cient operation without magnetics·No high voltage capacitors·Adjustable main output voltage (9V to 50V)·Additional 3.3V or 5V internal regulator·Up to 100mA combined output current·S...

SR087 Data Sheet

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Part Number:
SR087
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/24

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Product Details

Description



Features:

·Effi cient operation without magnetics
·No high voltage capacitors
·Adjustable main output voltage (9V to 50V)
·Additional 3.3V or 5V internal regulator
·Up to 100mA combined output current
·Single BOM for 120VAC/230VAC
·Built-in soft start
·Less than 200mW standby power


Application

·White goods
·Household appliances
·Lighting controls
·Circuit breakers
·Keep-alive supplies


Pinout

Connection Diagram


Specifications

Parameter Value
Output Voltage (VOUT) -0.3V to 56V
Feedback Voltage (VFB) -0.3V to 6.5V
Enable Voltage (VEN) -0.3V to 6.5V
Operating Junction Temperature -40to+125
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied.Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground.


Description

The Supertex SR087 is an inductorless switching regulator designed to operate directly from a rectifi ed AC line. The operating principle is to turn on a pass transistor when the rectifi ed AC is below the output voltage, and to turn it off when the output voltage reaches a specifi c level. A linear regulator supplied by VOUT provides an additional fi xed 3.3V output (SR086) or 5V output (SR087). Effi ciencies of around 55% may be realized for loads up to 1W in 120VAC applications, with around 50% effi ciencies for loads up to 800mW in 230VAC applications.

A logic-level enable input allows the SR087 to be disabled useful when the SR08x is employed as a keep-alive  ower supply.

WARNING! Galvanic isolation is not provided. Dangerous voltages are present when connected to the AC line. SR087 is the responsibility of the designer employing the SR08x to ensure adequate safeguards are in place to protect the end user from electrical shock.




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