TPS23785BPWP
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Texas Instruments TPS23785BPWP

Manufacturer No:
TPS23785BPWP
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC POE CNTRL 1 CHANNEL 24HTSSOP
Delivery:
Payment:
iso14001
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iso9001
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Product Introduction

Overview

The TPS23785B, produced by Texas Instruments, is a high-power, high-efficiency Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-to-DC controller. This component is specifically optimized for non-isolated converters and supports the IEEE 802.3at standard. It integrates a complete PoE interface with advanced DC-to-DC control features, making it suitable for a variety of power supply applications.

Key Specifications

SpecificationValue
PackageHTSSOP (PWP) with 24 pins
Operating Temperature Range-40°C to 125°C
Input PowerUp to 30 W
Hotswap MOSFET100 V, 0.5 Ω
Maximum Duty Cycle78%
Package QuantityCarrier 60 (Tube), Carrier 2,000 (LARGE T&R)

Key Features

  • Powers up to 30-W input PDs
  • DC-to-DC control optimized for non-isolated converters
  • Supports high-efficiency topologies
  • Complete PoE interface supporting IEEE 802.3at standard
  • Enhanced classification with status flag
  • Adapter ORing support with options for highest voltage, external adapter preference, and PoE preference
  • Robust 100-V, 0.5-Ω hotswap MOSFET
  • Industry standard PowerPAD TSSOP-24 package
  • Two complementary gate drivers with programmable dead time
  • Internal softstart, bootstrap startup source, and current-mode compensation
  • Programmable and synchronizable oscillator
  • Accurate programmable blanking for current-sense filter design

Applications

The TPS23785B is designed for various high-power applications that require efficient power delivery over Ethernet. These include but are not limited to:

  • Power over Ethernet (PoE) devices such as IP phones, wireless access points, and security cameras
  • Network switches and routers
  • Industrial control systems and automation equipment
  • Medical devices requiring reliable and efficient power supply
  • Other high-power DC-DC conversion applications where efficiency and reliability are critical

Q & A

  1. What is the TPS23785B?
    The TPS23785B is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-to-DC controller optimized for non-isolated converters.
  2. What is the maximum input power supported by the TPS23785B?
    The TPS23785B supports up to 30 W of input power.
  3. What is the operating temperature range of the TPS23785B?
    The operating temperature range is -40°C to 125°C.
  4. What type of package does the TPS23785B come in?
    The TPS23785B comes in a HTSSOP (PWP) package with 24 pins.
  5. Does the TPS23785B support IEEE 802.3at standard?
    Yes, the TPS23785B supports the IEEE 802.3at standard.
  6. What are the key features of the DC-to-DC controller in the TPS23785B?
    The DC-to-DC controller features two complementary gate drivers with programmable dead time, internal softstart, bootstrap startup source, current-mode compensation, and a programmable and synchronizable oscillator.
  7. What is the purpose of the hotswap MOSFET in the TPS23785B?
    The hotswap MOSFET is a robust 100 V, 0.5 Ω component that allows for safe and reliable power switching.
  8. Can the classification in the TPS23785B be programmed?
    Yes, the classification can be programmed to any of the defined types with a single resistor.
  9. What are some common applications of the TPS23785B?
    Common applications include PoE devices, network switches, industrial control systems, medical devices, and other high-power DC-DC conversion applications.
  10. How does the TPS23785B support adapter ORing?
    The TPS23785B supports adapter ORing with options for highest voltage, external adapter preference, and PoE preference.

Product Attributes

Type:Controller (PD), DC/DC
Number of Channels:1
Power - Max:30 W
Internal Switch(s):Both
Auxiliary Sense:No
Standards:802.3at (PoE+), 802.3af (PoE)
Voltage - Supply:0V ~ 57V
Current - Supply:960µA
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:24-HTSSOP
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Similar Products

Part Number TPS23785BPWP TPS23785BPWPR
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Type Controller (PD), DC/DC Controller (PD), DC/DC
Number of Channels 1 1
Power - Max 30 W 30 W
Internal Switch(s) Both Both
Auxiliary Sense No No
Standards 802.3at (PoE+), 802.3af (PoE) 802.3at (PoE+), 802.3af (PoE)
Voltage - Supply 0V ~ 57V 0V ~ 57V
Current - Supply 960µA 960µA
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount
Package / Case 24-TSSOP (0.173", 4.40mm Width) Exposed Pad 24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package 24-HTSSOP 24-HTSSOP

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