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參數(shù)資料
| 型號： | PT4842A |
| 英文描述： | 55V Single N-Channel HEXFET Power MOSFET in a D2-Pak package; Similar to IRF1405S with Lead Free Packaging |
| 中文描述： | DC至DC轉換器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 216K |
| 代理商： | PT4842A |
For technical support and more information, see inside back cover or visit www.ti.com
Features
DSL Triple Outputs
(Independantly Regulated)
Input Voltage Range:
36V to 75V
1500VDC Isolation
On/Off Control
Current Limit
Short Circuit Protection
(All Outputs)
Ordering Information
PT4841
= +15/+3.3/+1.5V
PT4842
= +12/+3.3/+1.8V
(65W)
(62W)
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
(Reference the applicable package code drawing for
the dimensions and PC layout)
Order
Suffix
N
A
C
Package
Code
(EKD)
(EKA)
(EKC)
Typical Application
PT4840 Series—48V
Description
The PT4840 Excalibur power
modules are a series of isolated triple-
output DC/DC converters that
operate from a standard (–48V) central
office supply. Rated for up to 65W,
these regulators are appropriate for
powering both analog and mixed-
signal circuitry. A typical application
is a chip-set for an ADSL/DSL line
card.
The output voltage combinations
offered by the PT4840 series provide
power for a low-voltage processor
core, the associated digital circuitry,
and analog support circuitry.
The PT4840 series incorporates
many features to simplify system
integration. These include a flexible
On/Off control, over-temperature
protection, and an input under-
voltage lock-out. All outputs are
current limited and short-circuit
protected. In addition, the low-
voltage outputs for processor core
and digital circuitry meet the power-
up and power-down sequencing
requirements of popular DSP ICs.
The PT4840 series is housed in
a space-saving solderable case. The
module requires no external heat sink
and can occupy as little as 1.97 in
2
of
PCB area.
Cin
Cout
EN1 & EN2 pins: See On/Off Enable Logic
= Optional
= Optional; See specifications
65-W Triple Output Isolated DC/DC
Converter for DSL Applications
SLTS142C - DECEMBER 2000 -REVISED SEPTEMBER 2002
DSL/ADSL
IC Chip Set
+V
IN
–V
IN
+15VDC
+3.3VDC
+1.5VDC
PT4841
1
2
11
15,16
22,23
18–20
12,13
3
Vo
1
COM
COM
Vo
2
Vo
3
+V
IN
–V
IN
EN 1
Vo
2
adj
Vo
3
adj
17
21
Vo
2
Adjust
Vo
3
Adjust
C
OUT1
C
OUT3
C
OUT2
C
IN
4EN 2
Fixed Frequency Operation
Over-Temperature Shutdown
Under-Voltage Lockout
Space Saving Package:
1.9 sq. in. PCB Area (suffix N)
Solderable Copper Case
Safety Approvals:
UL60950
CSA 22.2 950
VDE EN60950
相關PDF資料 |
PDF描述 |
|---|---|
| PT4842C | DC to DC Converter |
| PT4842N | DC to DC Converter |
| PT5541 | A 25V Single N-Channel HEXFET Power MOSFET in a DirectFET SQ package rated at 59 amperes optimized with low on resistance for applications such as active OR'ing. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in part number.; A IRF6622 with Standard Tape and Reel Quantity of 4800 |
| PT5542 | A 25V Single N-Channel HEXFET Power MOSFET in a DirectFET SQ package rated at 59 amperes optimized with low on resistance for applications such as active OR'ing. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in part number.; Similar to IRF6622 qualified for use with lead free solder shipped in tape and reel 4800 pieces |
| PT5544 | 8V 1.75A. 5-V Input Step-Up (Boost) ISR |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PT4842C | 功能描述:直流/直流開關轉換器 12/3.3/1.8V 48V-Inp 62W 3-Out DC-DC 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 |
| PT4842N | 功能描述:直流/直流開關轉換器 12/3.3/1.8V 48V-Inp 62W 3-Out DC-DC 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 |
| PT4850 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:25-A Triple Output Isolated DC/DC Converter For Logic Applications |
| PT4850F | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:Thin Type Phototransistor |
| PT4850FE000F | 功能描述:光電晶體管 PT4800F with IC bin 0.12-0.56mA RoHS:否 制造商:OSRAM Opto Semiconductors 最大功率耗散:165 mW 最大暗電流:200 nA 封裝 / 箱體:T-1 |
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