TPS23756PWPR Integrated Circuits (ICs)

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Power over Ethernet (PoE) has rapidly become a popular technology for providing both data and power over one connection. The Texas Instruments TPS23756PWPR is a Power over Ethernet (PoE) controller that was developed to support high-power applications. It is packaged in tiny 10-lead packs or 6-lead SC-70 packages and is suitable for a wide range of end-devices, including VoIP phones, surveillance cameras, and point-of- sale terminals, as well as IP phones, IP cameras and wireless access points. In addition, it supports a variety of popular PoE power configurations.

TPS23756PWPR Application Field

The TPS23756PWPR uses advanced technology to deliver a maximum output current of up to 25 amps and operate in a wide input voltage range from 24 V to 56 V. The wide voltage input range supports Power over Ethernet (PoE) powered devices that use both 4-pair and 2-pair power delivery, with support for standard PoE and PoE+ (802.3) operating modes. Specifically, the TPS23756PWPR supports the following features:

• Wide input voltage range from 24 V to 56 V for Power over Ethernet (PoE) powered devices
• Support for both 4-pair and 2-pair power delivery
• Support for standard and PoE+ (802.3) operating modes
• 25 A continuous and 30 A surge maximum current output
• 3-step thermal foldback and current decrease under overload conditions
• Integrated logic (20 V common) protects the device from overvoltage damage
• Support for LAN remote power control
• Flexible port control with configurable outputs on-off and current limit levels

The TPS23756PWPR is intended for use in a wide variety of applications, including security surveillance cameras, VoIP phones, point-of-sale terminals, IP cameras, IP phones, wireless access points, and similar end-devices. The wide voltage input range and high power output make it particularly suitable for applications where both data and power are required over a single connection.

TPS23756PWPR Working Principle

The TPS23756PWPR is a current-mode power supply controller that uses an internal charge-pump to double the input voltage. An internal low-side MOSFET handles the main power delivery to the load, while a high-side switch distributes the auxiliary power where required. The TPS23756PWPR is designed to provide both power delivery over 2-pair or 4-pair PoE connections and remote LAN power control.

As a current-mode power supply controller, the TPS23756PWPR can provide fast response time and low startup current. The device is also designed to provide overcurrent, overload and undervoltage protection for safe and reliable operation. This is done by using an advanced 3-step thermal foldback and current decrease under overload conditions, as well as an integrated logic protection feature that monitors all pins to prevent overvoltage damage.

In summary, the TPS23756PWPR is an advanced and versatile Power over Ethernet (PoE) controller that is suitable for a wide range of applications. It is designed to provide both data and power over one connection, with support for 4-pair and 2-pair power delivery and standard and PoE+ (802.3) operating modes. In addition, the device provides integrated logic (20 V common) protection against overvoltage damage, a 3-step thermal foldback and current decrease under overload conditions, and support for LAN remote power control. This makes the TPS23756PWPR an ideal solution for high-power applications where both data and power are needed in a single connection.

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