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Product Detailed Parameters
- Description：IC REG FLYBACK 800MA 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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 ~ 150°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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Overview
The LT8315HFE#TRPBF is a high-voltage isolated flyback converter controller manufactured by Analog Devices Inc. It operates with an input voltage range of 18 V to 560 V and supports up to 630 V output voltage. The device delivers a maximum output current of 300 mA with a single output configuration. It features a fixed switching frequency of 140 kHz and a low quiescent current of 70 uA. The component is housed in a TSSOP-EP-20 package and functions within a temperature range of -40°C to +150°C.
Feature Summary
- Integrated microprocessor-independent no-optocoupler isolation feedback mechanism
- High input voltage capability supporting direct connection to high-voltage rails
- Built-in shutdown functionality for power management control
Applications
- Industrial power supply systems requiring high voltage isolation
- Battery charger applications utilizing isolated topologies
- Medical equipment power stages demanding galvanic isolation
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the part number matches the exact manufacturer designation from Analog Devices Inc. documentation. Ensure compatibility with the required thermal and electrical specifications for the target application environment before finalizing procurement orders.
Selection Notes
Select this component for designs requiring high input voltages up to 560 V without external optocouplers. The TSSOP-EP-20 package provides thermal performance suitable for industrial environments. Consider the 140 kHz switching frequency for EMI management and transformer design constraints. Evaluate the 300 mA output current limit against load requirements.
Part Context
This part belongs to the LT8315 series of isolated flyback converters. It shares architectural similarities with other high-voltage controllers in the Analog Devices portfolio, such as the LT8316, but offers specific voltage ratings and packaging options. The series is designed for applications needing robust isolation and simplified feedback loops.
Replacement Considerations
LT8315HFE#PBF serves as the tube-packaged equivalent of this component. Both variants share identical electrical characteristics and pinouts. Select the tube version if reel packaging is not required for the assembly process.
