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Product Detailed Parameters
- Description：IC REGULATOR
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Forward Converter
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：6.5V ~ 100V
- Frequency - Switching：100kHz ~ 500kHz
- Duty Cycle (Max)：95%
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Soft Start
- Operating Temperature：-55°C ~ 150°C
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad
- Supplier Device Package：38-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3752MPFE is a current mode PWM controller optimized for active clamp synchronous flyback converters with integrated house power. It supports input voltages up to 100V and features a switching frequency range of 100kHz to 500kHz. The device offers a maximum duty cycle of 95% and includes a DC/DC auxiliary controller to enhance efficiency. It operates within a supply voltage range of 6.5V to 100V and utilizes a 31-pin TSSOP-EP package.
Feature Summary
- Optimized for active clamp synchronous flyback topologies
- Integrated DC/DC auxiliary controller for improved performance
- Supports high input voltage operation up to 100V
- Current mode PWM control architecture
Applications
- Active clamp synchronous flyback converter designs
- High efficiency isolated power supplies
- Systems requiring integrated house power generation
- Industrial power conversion applications
Procurement Notes
Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches the required package and temperature grade. Check for obsolescence status as some variants may be discontinued. Ensure ESD protection protocols are followed during handling due to the exposed pad thermal enhancement package.
Selection Notes
Select this controller when designing flyback converters requiring active clamp synchronization and integrated auxiliary power. Evaluate the 100V input capability against system requirements. Consider the 100kHz to 500kHz frequency range for transformer sizing. Verify compatibility with external N-channel MOSFETs and ensure thermal management suits the TSSOP-EP package constraints.
Part Context
The LT3752 series belongs to Analog Devices' family of high-performance DC/DC switching controllers. These components are designed for isolated converter topologies, specifically targeting efficiency improvements in flyback architectures. The MPFE variant denotes a specific package configuration and temperature rating within the broader LT3752 product line.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices official resources for cross-reference data. Verify pinout and electrical parameter compatibility before substituting any alternative controller.
