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參數(shù)資料
| 型號(hào)： | PT4831C |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 3-OUTPUT 35 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, SIP-21/18 |
| 文件頁數(shù)： | 12/34頁 |
| 文件大小： | 483K |
| 代理商： | PT4831C |
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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
EN 1
2
EN 2
3+Vin
4–Vin
5
Do Not Connect
6
Pin Not Present
7
Pin Not Present
8
Pin Not Present
9
COM
10
COM
11
Vo1 Adjust
PT4820 Series
35-W Triple Output Isolated DC/DC
Converter for Logic Applications
Pin Function
12
Vo1
13
Vo1
14
COM
15
Vo2 adjust
16
+Vo2
17
+Vo2
18
COM
19
Vo3 adjust
20
+Vo3
21
+Vo3
On/Off Enable Logic
Pin Configuration
Pin Descriptions
Pin 1
Pin 2
Output Status
×1
Off
10
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 -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.
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.
Vo3 Adjust:
Using a single resistor, this pin allows Vo3
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
Ta
Over Vin Range
–40
—
+85 (i)
°C
Case Temperature
Tc
Measured at center of case
—
+100
°C
ShutdownTemperature
OTP
115
125
°C
Solder Reflow Temperature
Treflow
Surface temperature of module pins or case
—
215 (ii)
°C
Storage Temperature
Ts
—
–40
—
+125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
1 msec, Sine, mounted
—
500
—
G’s
Mechanical Vibration
Mil-STD-883D, Method 2007.2
Suffix A, C
—
20 (iii)
—
G’s
20-2000 Hz
Weight
—
Vertical/Horizontal
—
50
—
grams
Flammability
—
Meets UL 94V-O
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT4831N | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/1.5V 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 |
| PT4832 | 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 |
| 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 |
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