參數(shù)資料
型號(hào)： PT4832
廠商： Texas Instruments, Inc.
英文描述： "5V/3.3V/2.5V 9A
中文描述： 5V/3.3V/2.5V 9A 輸出 48V 輸入的隔離 DC/DC 轉(zhuǎn)換器
文件頁數(shù)： 2/32頁
文件大?。?/td> 764K
代理商： PT4832
For technical support and more information, see inside back cover or visit www.ti.com
2
SLTS165E - FEBRUARY 2002 - REVISED MARCH 2003
Pin Function
1
2
3
4
5
6
7
8
9
10
11
EN 1
EN 2
+Vin
–Vin
Do Not Connect
Pin Not Present
Pin Not Present
Pin Not Present
COM
COM
Vo
1
Adjust
PT4820 Series
35-W Triple Output Isolated DC/DC
Converter for Logic Applications
Pin Function
12
Vo
1
13
Vo
1
14
COM
15
Vo
2
adjust
16
+Vo
2
17
+Vo
2
18
COM
19
Vo
3
adjust
20
+Vo
3
21
+Vo
3
On/Off Enable Logic
Pin Configuration
Pin Descriptions
Pin 1
Pin 2
Output Status
×
1
Off
1
0
On
0
×
Off
Notes:
Logic 1 =Open collector
Logic 0 = –Vin (pin 2) potential
For positive Enable function, connect pin 2
to pin 4 and use pin 1.
For negative Enable function, leave pin 1
open and use pin 2.
For automatice power-up connect pin 2 to
pin 4 and leave pin 1 open.
+Vin:
The positive input supply for the module with
respect to –Vin. When powering the module from a
–48V telecom central office supply, this input is
connected to the primary system ground.
–Vin:
The negative input supply for the module, and
the 0VDC reference for the EN 1, and EN 2 inputs.
When powering the module from a +48V supply,
this input is connected to the 48V(Return).
EN 1:
The positive logic input that activates the
module output. If not used, this pin should be left
open circuit. Connecting this input to –Vin disables
the module’s outputs.
EN 2:
The negative logic input that activates the
module output. This pin must be connected to –Vin
to enable the module’s outputs. A high impedance
disables the module’s outputs.
Vo 1:
The highest regulated output voltage, which is
referenced to the COM node.
Vo 2:
The regulated output that is designed to power
logic circuitry. It is referenced to the COM node.
Vo 3:
The low-voltage regulated output that provides
power for a μ-processor or DSP core, and is refer-
enced to the COM node.
COM:
The secondary return reference for the module’s
three 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.
Vo
3
Adjust:
Using a single resistor, this pin allows Vo
3
to be adjusted higher or lower than the preset value.
If not used, this pin should be left open circuit.
Note: Shaded functions indicates those pins that are at primary-side
potential. All other pins are referenced to the secondary.
Environmental Specifications
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Ambient Temperature Range
Case Temperature
ShutdownTemperature
Solder Reflow Temperature
Storage Temperature
Mechanical Shock
T
a
T
c
OTP
T
reflow
T
s
Over V
in
Range
Measured at center of case
–40
—
—
—
115
—
—
+85
(i)
+100
125
215
(ii)
+125
°C
°C
°C
°C
°C
Surface temperature of module pins or case
—
Per Mil-STD-883D, Method 2002.3
1 msec, Sine, mounted
Mil-STD-883D, Method 2007.2
20-2000 Hz
Vertical/Horizontal
Meets UL 94V-O
—
–40
—
—
500
20
(iii)
—
—
G’s
G’s
Mechanical Vibration
Suffix A, C
Weight
Flammability
—
—
—
50
—
grams
Notes:
(i) See SOA curves or consult factory for appropriate derating.
(ii) During solder reflow of SMD package version, do not elevate the module case, pins, or internal component temperatures above a peak of 215°C. For
further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA051).
(iii) The case pins on through-hole pin configurations (N & A) must be soldered. For more information see the applicable package outline drawing.
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參數(shù)描述
PT4832A 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/2.5V 9A 48V Inpt Iso DC/DC Cnvtr 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(fēng)格:SMD/SMT
PT4832C 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/2.5V 9A 48V Inpt Iso DC/DC Cnvtr 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(fēng)格:SMD/SMT
PT4832N 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/2.5V 9A 48V Inpt Iso DC/DC Cnvtr 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(fēng)格:SMD/SMT
PT4833 制造商:TI 制造商全稱:Texas Instruments 功能描述:35-W Triple Output Isolated DC/DC Converter for Logic Applications
PT4833A 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 3.3/2/1.5 V 12A 48V Inpt Iso DC/DC Cnvtr 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(fēng)格:SMD/SMT
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