Out of the Box

The NXP analog product development boards provide an easy-to-use platform for evaluating NXP products. The boards support a range of analog, mixed-signal and power solutions. They incorporate monolithic integrated circuits and system-in-package devices that use proven high-volume technology. NXP products offer longer battery life, a smaller form factor, reduced component counts, lower cost and improved performance in powering state-of-the-art systems.

This page will guide you through the process of setting up and using the TEA2095DB1574 demo board.

1.1 Kit Contents and Packing List

The TEA2095DB1574 contents include:

Assembled and tested TEA2095DB1574 in an antistatic bag

标记为完成:1.1 Kit Contents and Packing List

1.2 Additional Hardware

In addition to the kit contents, the following hardware is necessary or beneficial when working with this kit.

Assembled and tested TEA2095DB1574 in an antistatic bag

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Plug it in

2.1 Board Features

Adaptive gate drive for maximum efficiency at any load
Supply current in energy save operation of 90 μA
Regulation level of −25 mV for driving low-ohmic MOSFETs
Wide supply voltage range from 4.5 V to 30 V (limited by Vds rating of MOSFETs; maximum VCC TEA2095 is 38 V)
Dual synchronous rectification for LLC resonant
Supports 5.0 V operation with logic level SR MOSFETs
Differential inputs for sensing the drain and source voltages of each SR MOSFET
SO8 package (TEA2095T) and HSO8 package with exposed die pad (TEA2095TE)
Discharge of the output capacitor after mains disconnect
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
The Interlock function to prevent simultaneous conduction of the external MOSFETs
Supports 1 MHz switching frequency

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2.2 Board Description

The TEA2095DB1574 demo board contains the secondary part of a single output LLC converter, excluding the output capacitors and the feedback control hardware. To use the TEA2095DB1574 demo board correctly, an LLC converter board in which the demo board can replace the secondary part, is required.

The TEA2095TE is a dedicated controller IC for synchronous rectification on the secondary side of resonant converters. It incorporates 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.

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2.3 Board Components

The TEA2095DB1574 demo board consists of the TEA2095TE in an HSO8 package with exposed die pad and two MOSFETs in an LFPAK package with a typical RDSon of 4.0 mΩ. The TEA2095DB1574 demo board is a single layer board, with one plated-through via for improved solderability and robustness.

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Configure the Hardware

3.1 Additional Board Support

The TEA2095DB1574 demo board contains two 4.0 mΩ MOSFETs in LFPAK with a drain-source voltage rating of 60 V. These features make the board suitable for applications with an output voltage of up to 19.5 V. The TEA2095DB1574 demo board can be incorporated into an existing resonant power supply.

The following figure shows an example of the TEA2095DB1574 demo board used in a typical resonant adapter.

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Design Resources

Board Documents

UM11296, TEA2095DB1574 synchronous rectifier controller demo board

Additional Resources

Product Summary Page

The product summary page for TEA2095 is at: GreenChip Dual LLC SR Switching Controller.

Tool Summary Page

The tool summary page for the TEA2095DB1574 board is at TEA2095 GreenChip Dual SR Controller Add-on Board for Resonant

The page provides overview information, technical and functional specifications, ordering information, documentation and software. The Get Started provides quick-reference information applicable to using the TEA2095DB1574 board, including the downloadable assets.