PD70201数据手册开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS规格书PDF

描述 Description

The PD70201 is an integrated Powered Device (PD) Interface and PWM controllers for a DC-DC converter used in IEEE 802.3at Type 2 applications. The PD70201 can be used for IEEE 802.3af, IEEE 802.3at applications. A single PD70201 can be used in 4-pair applications which consumes up to 47.7W. The device has several features designed to improve efficiency and reliability:
• Detection and classification
• Capacitor
• Gate drivers
• Peak current mode control
• Maximum duty cycle
• Soft-start circuit
• Low voltage protection warning and monitoringStart your PoE PD power supply design using Microchip MPLAB® Analog Designer.

特性 Features

IEEE 802.3at Type 2 compliant
Support for 4-pair applications of up to 48W with a single IC
Two-events classification flag
Less Than 10 µA (typical) offset current during detection
Signature resistor is disconnected upon detection
Programmable classification setting with a single resistor
Integrated 0.6 Ohm isolating MOSFET switch with inrush current limit
Power off DC-DC input capacitor discharge
100 kHz to 500 kHz adjustable DC-DC switching frequency
DC-DC frequency can be synchronized to external clock
Supports low power mode operation for higher efficiency
Up to 50% duty cycle
Soft-start circuit to control the output voltage rise time
Two out-of-phase driver stages for efficient synchronous rectification or active clamp
PoE port input UVLO with programmable threshold and hysteresis
Internal differential amplifier simplifying non-isolated step down converter

简介

PD70201属于开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS。由制造生产的PD70201评估板 - DC/DC 与 AC/DC（离线）SMPS该系列产品提供了一种方便的方法，可对开关模式电源转换所用的器件（包括 DC-DC 和 AC-DC 型）进行性能或特性评估。“稳压器”（包含内部电源开关装置）和“控制器”（设计为控制外部电源开关）之类的器件均包括在内。