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Product Detailed Parameters
- Description：600VIN MICROPOWER, ISOLATED NO-O
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up, Step-Down
- Output Configuration：Positive
- Topology：Buck, Boost, Flyback
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：16V ~ 600V
- Frequency - Switching：220Hz ~ 140kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：-
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Soft Start
- 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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Overview
The LT8316IFE#PBF is a micropower, high-voltage flyback controller manufactured by Analog Devices. It supports input voltages up to 560V and operates with a switching frequency range of 220Hz to 140kHz. The device features synchronous rectification and requires no opto-isolator for regulation, sampling output voltage directly from the primary side. It provides current limit, enable, and soft start control features. The component is housed in a 20-lead TSSOP-EP package and supports topologies including buck, boost, and flyback configurations.
Feature Summary
- Eliminates the need for an opto-isolator by sampling output voltage from the primary side
- Supports high input voltages up to 560V with micropower operation
- Integrates synchronous rectification for improved efficiency
- Includes built-in current limit, enable, and soft start functions
Applications
- High-voltage isolated power supplies
- Industrial control systems requiring galvanic isolation
- Battery chargers with wide input voltage ranges
- Medical equipment power stages
Procurement Notes
Verify availability status carefully as distribution channels may indicate limited supply or discontinuation. Confirm that the specific suffix #PBF denotes lead-free packaging compliant with RoHS standards. Ensure the TSSOP-EP package type matches your PCB footprint requirements. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm current production status before finalizing procurement plans.
Selection Notes
Select this controller for applications requiring high input voltage tolerance without optocoupler complexity. The synchronous rectification feature enhances efficiency in flyback designs. Consider the 20-lead TSSOP-EP package for thermal performance and pin count. Verify that the required switching frequency falls within the 220Hz to 140kHz operational range. Ensure the design accommodates the primary-side sensing architecture for accurate regulation.
Part Context
The LT8316 belongs to Analog Devices' family of micropower flyback controllers designed for high-voltage applications. The LT8316IFE#PBF variant specifically utilizes the TSSOP-EP package for surface mount installation. This series emphasizes simplified design by removing the opto-isolator, reducing component count and improving reliability in isolated power conversion systems.
Replacement Considerations
Consult Analog Devices official documentation for direct cross-references. No public substitute part numbers are confirmed in the provided source material.
