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Product Detailed Parameters
- Description：IC REG CTRLR FLYBACK 16TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Flyback
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：9.7V ~ 18V
- Frequency - Switching：100kHz
- Duty Cycle (Max)：88%
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, On Time Control
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3825EFE#PBF is an isolated synchronous flyback controller designed for medium-power applications ranging from 10W to 60W. It features a wide input supply range of 14V to 75V and operates with current mode control. The device supports a switching frequency of 100kHz, with a maximum duty cycle of 88%. It includes a built-in synchronous rectifier and requires a supply voltage between 9.7V and 18V. Packaged in a 16-pin TSSOP with an exposed pad, it offers clock synchronization capabilities.
Feature Summary
- Isolated no-opto synchronous flyback controller architecture
- Wide input supply range supporting diverse power sources
- Built-in synchronous rectification for improved efficiency
- Clock synchronization capability for noise management
Applications
- Medium power flyback topologies
- Industrial power supplies
- Telecommunications equipment
- Consumer electronics adapters
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm that the 16-pin TSSOP EP package matches your PCB footprint requirements. Ensure the design accommodates the 9.7V to 18V Vcc supply range. Cross-reference the manufacturer's latest datasheet for any updates to electrical characteristics or thermal performance data before finalizing procurement.
Selection Notes
Select this component for designs requiring isolation without optocouplers in the 10W to 60W range. It is suitable where wide input voltage ranges are necessary. Consider the 100kHz switching frequency for component size trade-offs. Verify compatibility with current mode control loops. Ensure the synchronous rectifier implementation aligns with target efficiency goals.
Part Context
The LT3825EFE#PBF belongs to Analog Devices' family of isolated switching regulator controllers. It is specifically engineered for flyback converters, offering a compact solution compared to traditional optocoupler-based designs. The device integrates essential control functions into a single IC, simplifying the bill of materials and reducing board space requirements for standard power conversion tasks.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Analog Devices resources for potential alternatives.
