參數(shù)資料
型號： PT4701A
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源模塊
英文描述： 4-OUTPUT 35 W DC-DC REG PWR SUPPLY MODULE
封裝： METAL, SIP-15/21
文件頁數(shù)： 1/11頁
文件大?。?/td> 206K
代理商： PT4701A
For technical support and more information, see inside back cover or visit www.ti.com
Features
Input Voltage: 36 V to 75 V
Designed for AC6 ADSL
Line-Interface Driver/Receivers
Powers up to 32 Channels
Quad Outputs (±8 V, ±3.75 V)
Dual Logic On/Off Control
Output Current Limit
Unbalanced Load Protection
Fixed Frequency Operation
Over-Temperature Shutdown
Ordering Information
PT4701
o = ±8.0/±3.75 V
PT Series Suffix (PT1234 x )
Case/Pin
Order
Package
Configuration
Suffix
Code
Vertical
N
(ENM)
Horizontal
A
(ENN)
SMD
C
(ENP)
(Reference the applicable package code drawing for
the dimensions and PC layout)
Typical Application
PT4701—48V
Description
The PT4701 Excalibur power
module is a 35-watt quad-output
DC/DC converter that is designed
to meet the power requirements of
Texas Instruments’ TNETD7112.
The TNETD7112 is a dual-channel
line-interface driver/receiver that
compliments the AC6 ADSL chipset
for use in POTS (plain old telephone
service) applications. To conserve
power, the TNETD7112 line drivers
require two pairs of complimentary
power supply voltages. These are
±8 V and ±3.75 V respectively.
The PT4701 module operates
from a standard (–48 V) telecom
central office supply and provides
all four supply voltages as two com-
plimentary balanced loads. (This
product is not suitable for unbalanced
load applications.) The load capacity
allows the PT4701 to operate up to
16 line-driver ICs, representing 32
ADSL channels.
The PT4701 incorporates many
features to simplify system integra-
tion. These include a flexible On/Off
enable control, input under-voltage
lock-out, and over-temperature pro-
tection. All outputs are short-circuit
protected, and internally sequenced
to meet the TNETD7112 power-up
and power-down requirements.
The module is packaged in a
space-saving solderable copper case,
requires no heat sink, and can occupy
as little as 1.2 in2 of PCB area.
Co1, Co2
= Required 33 F
Co3, Co4
= Required 150 F
EN1 & EN2 pins:
See On/Off Enable Logic
35-W Quad-Output
DC/DC Converter for DSL
Under-Voltage Lockout
1500 VDC Isolation
Space-Saving Solderable Case
1.2 sq. in. PCB Area (suffix N)
Surface Mountable
IPC Lead Free 2
Safety Approvals:
UL60950
CSA 22.2 950
Dual-Channel
ADSL Driver/Receiver
(TNETD7112)
TXP
RXP
RXN
TXN
VEEHS VCCHS
VEEL
VCCL
PT4701
+V
IN
–V
IN
EN1
EN2
±Vo
2 Adj
±Vo
1 Adj
+Vo
1
–Vo
1
+Vo
2
–Vo
2
COM
+V
IN
–V
IN
+3.75 V
–3.75 V
+8 V
–8 V
VEEH VCCH
Power Filter
To
Additional Channels
Co
1
33 F
+
Co
2
33 F
+
Co
3
150 F
+
Co
4
150 F
+
COM
1
3
4
2
20
19
18
21
16
15
14
17
AGND
DGND
SLTS182A - FEBRUARY 2003 - REVISED APRIL 2003
相關PDF資料
PDF描述
PT4841C 3-OUTPUT 65 W DC-DC REG PWR SUPPLY MODULE
PT4842N 3-OUTPUT 62 W DC-DC REG PWR SUPPLY MODULE
PT4842C 3-OUTPUT 62 W DC-DC REG PWR SUPPLY MODULE
PT4841A 3-OUTPUT 65 W DC-DC REG PWR SUPPLY MODULE
PT4842A 3-OUTPUT 62 W DC-DC REG PWR SUPPLY MODULE
相關代理商/技術參數(shù)
參數(shù)描述
PT4701C 功能描述:直流/直流開關轉(zhuǎn)換器 35W Quad-Outp 48V Inpt DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
PT4701N 功能描述:直流/直流開關轉(zhuǎn)換器 35W Quad-Outp 48V Inpt DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
PT4711 制造商:TI 制造商全稱:Texas Instruments 功能描述:45-W Dual-Output Isolated DC/DC Converter
PT4711A 功能描述:DC/DC轉(zhuǎn)換器 45W Dual 15V Out 48V Inpt Iso DC/DC Cnvtr RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸:
PT4711C 功能描述:DC/DC轉(zhuǎn)換器 45W Dual 15V Out 48V Inpt Iso DC/DC Cnvtr RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸:
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