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參數(shù)資料
| 型號： | PT4662N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 10/17頁 |
| 文件大小： | 341K |
| 代理商： | PT4662N |
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 –Vin. 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 -Vin. 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 –Vin.
EN 2:
An open-collector (open-drain) positive logic input
that enables the module output. This pin is TTL compat-
ible and referenced to –Vin. 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 –Vin. 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 –Vin and rises approximately 10 mV/°C
from an intital value of 0.1 VDC at –40 °C.
Vtemp =0.5 + 0.01Tsense
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.)
Vo1:
The higher regulated output voltage, which is refer-
enced to the COM node.
Vo2:
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.
Vo1 Adjust:
Using a single resistor, this pin allows Vo1 to
be adjusted higher or lower than the preset value. If not
used, this pin should be left open circuit.
Vo2 Adjust:
Using a single resistor, this pin allows Vo2 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
01
On
×
0
Off
Pin-Out Information
Pin
Function
1+Vin
2-Vin
3
EN 1
4
EN 2
5
TEMP
6
AUX
7
Do Not Connect
8
Do Not Connect
9+Vo1
Pin
Function
10
+Vo1
11
+Vo1
12
+Vo1
13
Vo1 Adjust
14
COM
15
COM
16
COM
17
COM
18
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
COM
20
Vo2 Adjust
21
+Vo
2
22
+Vo
2
23
+Vo
2
24
+Vo
2
25
Do Not Connect
26
Do Not Connect
SLTS140C – MAY 2001 – REVISED OCTOBER 2003
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| PT4662A | 2-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE |
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| PT4663 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-A 24-V Input Dual Output Isolated DC/DC Converter |
| PT4663A | 功能描述:DC/DC轉(zhuǎn)換器 30A 3.3/1.8V DC/DC 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: |
| PT4663C | 功能描述:直流/直流開關(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 安裝風格:SMD/SMT |
| PT4663N | 制造商:TI 制造商全稱:Texas Instruments 功能描述:30-A Dual Output Isolated DC/DC Converter |
| PT4665 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-A 24-V Input Dual Output Isolated DC/DC Converter |
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