Manufacturers
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News
560V No-Opto Flyback Regulator Delivers Up to 15 Watts in High Voltage Spacing TSSOP Package
2017-02-07 | ReturnSeveral off-the-shelf transformers identified in the data sheet can be used for numerous applications. The LT8315 operates in quasi-resonant boundary mode, which is a variable frequency current mode control switching scheme, resulting in better than ±1% load and line regulation. Boundary mode enables the use of a smaller transformer compared to equivalent continuous conduction mode designs. The high level of integration and the use of low ripple Burst Mode® operation result in a simple to use, low component count and high efficiency application solution for isolated power delivery.
Additional features include output short-circuit protection, 70µA no load operating quiescent current, accurate enable and undervoltage lockout with hysteresis, along with output diode temperature compensation.
The LT8315 is available in a TSSOP-20 package with four pins removed for high voltage spacing. Extended and industrial versions operate over a junction temperature range of –40°C to 125°C. A high temperature automotive grade operates from –40°C to 150°C. Pricing starts at $4.15 each in 1000-piece quantities. For more information, visit www.linear.com/product/LT8315.
Summary of Features: LT8315
• VIN Range from 18V to 560V
• Up to 15 Watts of Output Power
• Onboard 0.30A/630V Power Switch
• Off-the-Shelf Power Transformers
• No Opto-Isolator or LT1431 Required for Voltage Feedback
• 70µA Quiescent Current
• Quasi-Resonant Boundary Mode Operation
• Accurate Input Enable & Undervoltage Lockout with Hysteresis
• Output Diode Temperature Compensation
• TSSOP Package with High Voltage Spacing
Pricing shown is for budgetary use only and may differ due to local duties, taxes, fees and exchange rates.
Source:http://www.linear.com/