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Product Detailed Parameters
- Description：IC REG FLYBACK 420MA 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up/Step-Down
- Output Configuration：Positive or Negative, Isolation Capable
- Topology：Flyback
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：4.5V
- Voltage - Input (Max)：100V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：420mA
- Frequency - Switching：40kHz ~ 650kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width), 12 Leads
- Supplier Device Package：16-MSOP
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Overview
The LT3512HMS#PBF is a monolithic high voltage isolated flyback converter manufactured by Analog Devices. It operates with an input voltage range of 4.5V to 100V and provides a maximum output current of 420mA. The device supports a switching frequency range from 40kHz to 650kHz and functions within a junction temperature range of -40°C to +150°C. Packaged in a 12-lead MSOP, it integrates synchronous rectification capabilities and eliminates the need for third windings or opto-isolators.
Feature Summary
- Integrates high voltage startup circuitry enabling operation from inputs up to 100V without external bias supplies.
- Eliminates the requirement for auxiliary windings or opto-isolators through integrated feedback mechanisms.
- Features adjustable switching frequency ranging from 40kHz to 650kHz for optimized transformer size and efficiency.
- Includes thermal regulation and cycle-by-cycle current limiting for robust protection under fault conditions.
Applications
- Isolated power supplies for industrial control systems
- Battery-powered equipment requiring galvanic isolation
- Automotive electronics with wide input voltage ranges
- Medical devices needing compact isolated DC-DC conversion
Procurement Notes
Verify the specific suffix #PBF confirms lead-free compliance and RoHS standards as per Analog Devices documentation. Confirm the MSOP-12 package variant matches your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Cross-reference the datasheet revision date to ensure compatibility with latest design guidelines. Validate that the 100V maximum input rating aligns with your system's peak voltage transients.
Selection Notes
Select this component when high input voltages up to 100V are required without external bias circuits. Choose the LT3512HMS#PBF for applications demanding compact isolated flyback solutions with integrated synchronous rectification. Consider the adjustable frequency range for balancing EMI performance against transformer size. Evaluate the thermal management needs given the wide operating temperature range and potential power dissipation in the MSOP package.
Part Context
The LT3512 series belongs to Analog Devices' family of high voltage isolated flyback converters. These devices are designed to simplify the design of isolated power stages by integrating critical control functions. The MSOP package offers a compact solution for space-constrained applications. This part number specifically denotes the tube-packaged version of the device.
Replacement Considerations
LT3512EMS#PBF is a documented equivalent offering identical functionality in a tube package. LT3512HMS#TRPBF provides the same electrical characteristics but in tape-and-reel packaging for automated assembly. Verify pinout and thermal performance compatibility before substitution.
