參數(shù)資料
型號(hào)： PT4665N
廠商： Texas Instruments, Inc.
英文描述： 30-A Dual Output Isolated DC/DC Converter
中文描述： 30雙輸出隔離式DC / DC轉(zhuǎn)換器
文件頁(yè)數(shù)： 2/17頁(yè)
文件大?。?/td> 339K
代理商： PT4665N
For technical support and further information, visit http://power.ti.com
PT4660 Series
30-A Dual Output Isolated
DC/DC Converter
Pin Descriptions
+Vin:
The positive input supply for the module with respect
to
–V
in
. When powering the module from a –48 V telecom
central office supply, this input is connected to the primary
system ground.
–Vin:
The negative input supply for the module, and the
0 VDC reference for the
EN 1
,
EN 2
,
TEMP
, and
AUX
signals. When the module is powered from a +48-V supply,
this input is connected to the 48-V Return.
EN 1:
This an open-collector (open-drain) negative logic
input that enables the module output. This pin is TTL
compatible and referenced to
-V
in
. A logic ‘0’ at this pin
enables the module’s outputs, and a logic ‘1’ or high
impedance disables the module’s outputs. If not used,
the pin must be connected to
–V
in
.
EN 2:
An open-collector (open-drain) positive logic input
that enables the module output. This pin is TTL compat-
ible and referenced to
–V
in
. A logic ‘1’ or high impedance
enables the module’s outputs. If not used, the pin should
be left open circuit.
AUX:
Produces a regulated output voltage of 11.6 V ±5 %,
which is referenced to
–V
in
. The current drawn from the
pin must be limited to 10mA. The voltage may be used
to indicate the output status of the module to a primary
referenced circuit, or power a low-current amplifer.
TEMP:
This is the output voltage produced by the module’s
internal temperature sensor. The voltage at this pin is
referenced to –V
in
and rises approximately 10 mV/°C
from an intital value of 0.1 VDC at –40 °C.
V
temp
=0.5 + 0.01·T
sense
The signal is available whenever the module is supplied
with a valid input voltage, and is independant of the enable
logic status.
(
Note:
A load impedance of less than 1 M
will
adversly affect the module’s over-temperature shutdown threshold.
Use a high-impedance input when monitoring this signal.)
Vo
1
:
The higher regulated output voltage, which is refer-
enced to the
COM
node.
Vo
2
:
The lower regulated output voltage, which is refer-
enced to the
COM
node.
COM:
The secondary return reference for the module’s two
regulated output voltages. It is dc isolated from the input
supply pins.
Vo
1
Adjust:
Using a single resistor, this pin allows
Vo
1
to
be adjusted higher or lower than the preset value. If not
used, this pin should be left open circuit.
Vo
2
Adjust:
Using a single resistor, this pin allows
Vo
2
to
be adjusted higher or lower than the preset value. If not
used, this pin should be left open circuit.
On/Off Logic
Pin 3
Pin 4
Output Status
1
×
Off
0
1
On
×
0
Off
Pin-Out Information
Pin
Function
1
2
3
4
5
6
7
8
9
+Vin
-Vin
EN 1
EN 2
TEMP
AUX
Do Not Connect
Do Not Connect
+Vo
1
Pin
Function
10
11
12
13
14
15
16
17
18
+Vo
1
+Vo
1
+Vo
1
Vo
1
Adjust
COM
COM
COM
COM
COM
Notes:
Logic 1 =Open collector
Logic 0 = –Vin (pin 2) potential
For positive Enable function, connect pin 3
to pin 2 and use pin 4.
For negative Enable function, leave pin 4
open and use pin 3.
Note: Shaded functions indicate signals that are
referenced to the input (-Vin) potential.
Pin
Function
19
20
21
22
23
24
25
26
COM
Vo
2
Adjust
+Vo
2
+Vo
2
+Vo
2
+Vo
2
Do Not Connect
Do Not Connect
SLTS140C – MAY 2001 – REVISED OCTOBER 2003
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PDF描述
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PT4666 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:20-A 24-V Input Dual Output Isolated DC/DC Converter
PT4666A 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 30A Dual Out 48V-Inp Isolated DC-DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)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(fēng)格:SMD/SMT
PT4666C 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 30A Dual Out 48V-Inp Isolated DC-DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)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(fēng)格:SMD/SMT
PT4666N 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 30A Dual Out 48V-Inp Isolated DC-DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)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(fēng)格:SMD/SMT
PT4667 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:20-A 24-V Input Dual Output Isolated DC/DC Converter
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