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参数资料
| 型号： | PT4841A |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 3-OUTPUT 65 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | SIP-21 |
| 文件页数： | 1/15页 |
| 文件大小： | 260K |
| 代理商： | PT4841A |
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
o = +15/+3.3/+1.5V (65W)
PT4842
o = +12/+3.3/+1.8V (62W)
PT Series Suffix (PT1234 x )
Case/Pin
Order
Package
Configuration
Suffix
Code
Vertical
N
(EKD)
Horizontal
A
(EKA)
SMD
C
(EKC)
(Reference the applicable package code drawing for
the dimensions and PC layout)
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 in2 of
PCB area.
Cin
= Optional
Cout = Optional; See specifications
EN1 & EN2 pins: See On/Off Enable Logic
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
Vo
2
Vo
3
+V
IN
–V
IN
EN 1
Vo
2adj
Vo
3adj
17
21
Vo
2 Adjust
Vo
3 Adjust
C
OUT1
C
OUT3
C
OUT2
C
IN
4
EN 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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT4841C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC to DC Converter |
| PT4841N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DC to DC Converter |
| PT4842 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:12V/3.3V/1.8V 48V-Input 62-Watt Triple-Output DC/DC Converter |
| PT4842A | 功能描述:直流/直流开关转换器 12/3.3/1.8V 48V-Inp 62W 3-Out DC-DC RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| PT4842C | 功能描述:直流/直流开关转换器 12/3.3/1.8V 48V-Inp 62W 3-Out DC-DC RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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