Datasheet 搜索 > PLC可编程逻辑控制器 > TI（德州仪器） > TPS23785BEVM-522 数据手册 > TPS23785BEVM-522 其他数据使用手册 1/47 页
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TPS23785BEVM-522 其他数据使用手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
PLC可编程逻辑控制器
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P9P10P13Hot
典型应用电路图在P1P9P10P19P28P31
原理图在P8P27
封装尺寸在P41P42P43
标记信息在P2P41
封装信息在P2P41P42P43
技术参数、封装参数在P2
应用领域在P1P28P47
电气规格在P4P6P10P21P28
导航目录
TPS23785BEVM-522数据手册
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TPS23785B
M1
R
CS
D
VC1
GATE
RTN
V
C
CS
C
VC
CTL
58V
0.1uF
R
DEN
From Ethernet
Pairs 1,2
V
SS
C
IN
From Ethernet
Pairs 3,4
CLS
DEN
FRS
T2P
R
CLS
Type 2 PSE
Indicator
R
FRS
V
B
C
VB
R
FBU
R
FBL
TLV431
C
IZ
V
OUT
PAD
V
DD
GAT2
M2
R
T2P
D
A
R
APD2
R
APD1
Adapter
R
CTL
APD
C
OUT
T1
R
VC
ARTN
NC
V
DD1
COM
R
BLNK
BLNK
DT
R
DT
TPS23785B
www.ti.com
SLUSB90A –DECEMBER 2012–REVISED DECEMBER 2012
High-Power, High-Efficiency PoE PD and DC-to-DC Controller
1
FEATURES
DESCRIPTION
The TPS23785B is a combined Power over Ethernet
2
• Powers up to 30-W (Input) PDs
(PoE) powered device (PD) interface and current-
• DC-to-DC Control Optimized for Non-Isolated
mode DC-to-DC controller optimized specifically for
Converters
non-isolated converters. The PoE interface supports
• Supports High-Efficiency Topologies
the IEEE 802.3at standard.
• Complete PoE Interface
The TPS23785B supports a number of input voltage
ORing options including highest voltage, external
• Enhanced Classification per IEEE 802.3at with
adapter preference, and PoE preference. These
Status Flag
features allow the designer to determine which power
• Adapter ORing Support
source will carry the load under all conditions.
• Robust 100-V, 0.5-Ω Hotswap MOSFET
The PoE interface features the two-event, physical-
• –40°C to 125°C Junction Temperature Range
layer classification necessary for compatibility with
• Industry Standard PowerPAD™ TSSOP-24
high-power midspan power sourcing equipment
(PSE) per IEEE 802.3at. The detection signature pin
APPLICATIONS can also be used to force power from the PoE source
off. Classification can be programmed to any of the
• IEEE 802.3at Compliant Devices
defined types with a single resistor.
• Video and VoIP Telephones
• RFID Readers
• Surveillance Cameras
• Wireless Access Points
Typical Application Diagram
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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