General Description

The EVDD404 evaluation board is a general-purpose circuit board designed to simplify the evaluation of the IXYS IXDD404 gate drive IC, as well as to provide a building block for power circuit development. Either the DIP-8 (IXDD408PI) or SO-16 (IXDD408SI-16) gate driver package types may be installed in the driver (the DIP-8 package is factory installed). The board enables the user to drive MOSFETs or IGBTs in TO-220, TO-247, TO-264 or SOT-227 packages. The evaluation board design allows these MOSFETS to be attached to a heat sink, and in so doing the board assembly can be used as a ground referenced, low side power switch for both single-ended and push-pull configurations. Circuitry for the Tri-State function is included on the evaluation board.

Figure 1 is a photograph of the IXDD404 Evaluation Board loaded with an IXDD404PI DIP-8 driver and a SOT-227 MOSFET. The low level inputs are shown on the left side of the board. CONTROL is a TTL high true input which controls the on or off state of the power switch Q1, Q2, or Q3. ENABLE is a low true input, which controls the Tri-State output. VCC-IN is the low voltage, (8-25V) power input, (see Figure 3 below). Figure 2 illustrates the MOSFET mounting of a TO-220, TO-247, or TO-264 device. The MOSFET is mounted on the back side of the PCB. A large through hole is provided so that the device can be attached to a heat sink. The SOT-227 (shown in the photograph) is mounted in a similar manner.

EVDD404属于开发板，套件，编程器 > 评估和演示板及套件。IXYS Integrated Circuits Division制造生产的EVDD404评估和演示板及套件该系列产品提供了一种方便的方法，在经过验证的实施环境中评估某些重点器件的性能或特性。评估方法通常有完善的文档说明，并且视乎具体情况由评估软件提供支持。产品通常由印刷电路板组成，板上已装有重点器件以及必要或有用的支持元器件，另外也可能包括其他组件，例如电缆或电源。对于数量特别多或类别独特的器件类别(如 ADC、DAC 和开关模式电源)，评估平台可组合为一个单独的产品系列。