TEA2096 Dual synchronous rectifier controller | NXP Semiconductors

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The TEA2096T is a new synchronous rectifier (SR) controller IC for switched-mode power supplies. It incorporates an adaptive gate drive method for maximum efficiency at any load.

The TEA2096T is a dedicated controller IC for synchronous rectification on the secondary side of resonant converters. It has two driver stages for driving the SR MOSFETs, which rectify the outputs of the central tap secondary transformer windings. The two gate driver stages have their own sensing inputs and operate independently. The TEA2096T is optimized for efficient operation with very low-ohmic MOSFETs and switching at high frequencies. The TEA2096T is fabricated in a silicon-on-insulator (SOI) process.

The TEA2095T/TE is optimally used in resonant power supplies for servers, PCs, TVs, adapters and other switch mode power supplies.

Data Sheet

Product Details

Block Diagram

Dual Synchronous Rectifier Controller

Get diagram PDF

Features

Efficiency Features

Adaptive gate drive for maximum efficiency at any load
Supply current in energy save operation of 80 μA
Regulation level of −29 mV for driving low-ohmic MOSFETs

Application Features

Drain sense voltage to 200 V
Wide supply voltage range from 4.5 V to 38 V
Dual synchronous rectification for LLC resonant
Supports 5 V operation with logic level SR MOSFETs
Differential inputs for sensing the drain and source voltages of each SR MOSFET
SO8 package

Control Features

SR control without minimum on-time
Adaptive gate drive for fast turn-off at the end of conduction
Undervoltage lockout (UVLO) protection with active gate pull-down
Interlock function to prevent simultaneous conduction of the external MOSFETs
Supports 1 MHz switching frequency

NXP GreenChip

This product is part of the NXP GreenChip portfolio, this program optimizes for energy efficiency in mobile and computing applications, specializing in high-power density, safety and reliability.