LT8315EFE#TRPBF

$10.57

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

SKU:646dc13f4b20 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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LT8315EFE#TRPBF

Overview

The LT8315EFE#TRPBF is an isolated flyback converter controller from Analog Devices, designed for high-voltage applications. It supports a wide input voltage range of 18 V to 560 V and delivers up to 300 mA output current at 630 V. The device operates with a fixed switching frequency of 140 kHz and features a low quiescent current of 70 uA. Packaged in a TSSOP-EP-20 format, it functions within a temperature range of -40°C to +125°C.

Feature Summary

Supports ultra-high input voltages up to 560 V without requiring external optocouplers for regulation
Integrates a high-voltage startup regulator to simplify biasing from the primary side
Features low quiescent current operation to maintain efficiency during light load conditions

Applications

Industrial power supplies requiring galvanic isolation
High-voltage battery charging systems
Medical equipment power stages
Distributed power architectures

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the TSSOP-EP-20 package type matches your PCB footprint requirements. Ensure the design accounts for the 560 V maximum input rating and thermal dissipation needs associated with the exposed pad. Cross-reference the datasheet for any recent product change notifications affecting pinout or electrical characteristics.

Selection Notes

Select this component for designs demanding high input voltage tolerance and isolated outputs. The integrated high-voltage startup reduces external component count compared to standard controllers. Consider the 140 kHz fixed frequency for EMI filtering requirements. Evaluate thermal performance given the TSSOP-EP-20 package limitations under high-power loads.

Part Context

This part belongs to the LT8315 family of isolated flyback converters. It is distinct from non-isolated buck controllers like the LTC3891 or LED drivers like the LT3517. The series focuses on high-voltage isolation capabilities, differentiating it from low-voltage synchronous rectifiers such as the LTC3315.