LT8315IFE#TRPBF

$11.31

Description：IC REG FLYBACK 800MA 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:bb842df104bf Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG FLYBACK 800MA 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down, Step-Up/Step-Down
Output Configuration：Positive, Isolation Capable
Topology：Flyback
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：18V
Voltage - Input (Max)：560V
Voltage - Output (Min/Fixed)：-
Voltage - Output (Max)：-
Current - Output：800mA
Frequency - Switching：220Hz ~ 140kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad
Supplier Device Package：20-TSSOP-EP
Grade：-
Qualification：-

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LT8315IFE#TRPBF

Overview

The LT8315IFE#TRPBF is an isolated flyback converter controller from Analog Devices, designed for high-voltage applications. It operates with an input voltage range of 18 V to 560 V and supports a maximum output voltage of 630 V. The device delivers up to 300 mA of output current while maintaining a low quiescent current of 70 uA. Operating at a fixed switching frequency of 140 kHz, it eliminates the need for an optocoupler for basic regulation. The component is housed in a TSSOP-EP-20 package and functions reliably within a temperature range of -40°C to +125°C.

Feature Summary

Integrated no-opto isolation feedback mechanism for simplified transformer design
High input voltage capability suitable for direct AC line or high-voltage DC sources
Low standby power consumption enabled by minimal quiescent current draw
Built-in thermal protection and cycle-by-cycle current limiting

Applications

Industrial power supplies requiring galvanic isolation
Battery chargers for high-voltage battery packs
Medical equipment power stages
Telecommunications infrastructure power modules

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the manufacturer part number matches exactly to ensure compatibility with design specifications. Check for recent production change notices that may affect pinout or electrical characteristics. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when designing isolated converters requiring high input voltages without optocouplers. Consider the TSSOP-EP-20 package for thermal management needs. Evaluate the 140 kHz switching frequency against electromagnetic interference requirements. Ensure the external transformer design supports the specified 630 V output capability and 300 mA load current.

Part Context

This part belongs to the LT8315 family of high-voltage isolated flyback controllers. It shares architectural similarities with other no-opto solutions but is distinguished by its extended input voltage range up to 560 V. The series targets applications where traditional optocoupler-based designs are too bulky or costly.