LTC3866IFE#TRPBF

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LTC3866IFE#TRPBF is a phase shift full bridge controller designed for DC/DC synchronous power conversion. This product is suitable for high-power applications and comes with advanced operational features. It is optimized for both high-current, high-voltage and low-current, low-voltage operation.

Features

• Input Voltage Range: 5V to 80V
• Output Voltage Range: up to (Vin-3V)
• Frequency Range: 1kHz to 2MHz
• On-board software power cycling
• Remote synchronization
• On-board over-voltage protection
• Provides precision adjustable current limit
• Built-in ramp compensation
• PMBus™ compatible

Applications

The LTC3866IFE#TRPBF is ideal for use in a wide range of high-power applications, with up to 20A DC/DC synchronous power conversion. Examples of applications include industrial motor controls, server power supplies, automotive power converters, and green energy systems such as solar and wind power.

Working Principle

The LTC3866IFE#TRPBF is a dual-channel synchronous controller featuring two power stages, each optimized for high-current, high-frequency operation. Each stage is controlled by a closed loop current sense circuit and a dual-channel input voltage monitor. The controller automatically switches the input voltage from one stage to the other, providing precise control even at very high switching frequencies.

In operation, the controller monitors the current in the power stages to ensure precise voltage regulation, current limit, and fast response to load transients. The on-board software power cycling feature turns on and off the output to reduce input ripple current and minimize power dissipation. It also provides over-voltage protection and remote synchronization.

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