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參數資料
| 型號： | PT4833N |
| 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： | 1/34頁 |
| 文件大小： | 483K |
| 代理商： | PT4833N |
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For technical support and more information, see inside back cover or visit www.ti.com
1
SLTS165E - FEBRUARY 2002 - REVISED MARCH 2003
Features
Triple Outputs
(Independently Regulated)
Input Voltage Range:
36V to 75V, 80V Surge
1500VDC Isolation
Dual Logic On/Off Control
Short-Circuit Protection
(All Outputs)
Fixed Frequency Operation
Ordering Information
PT4821
o = +3.3/+2.5/+1.5V
PT4822
o = +3.3/+1.8/+1.5V
PT4823
o = +3.3/+2.5/+1.2V
PT4824
o = +3.3/+1.8/+1.2V
PT4825
o = +3.3/+1.5/+1.2V
PT4826
o = +5.0/+3.3/+1.8V
PT4827
o = +3.3/+2.5/+1.8V
PT4828
o = +5.0/+2.5/+1.5V
PT4829
o = +5.0/+1.8/+1.5V
PT4831
o = +5.0/+3.3/+1.5V
PT4832
o = +5.0/+3.3/+2.5V
* PT4833
o = +3.3/+2.0/+1.5V
* The PT4833 is not included in the VDE
safety certification.
PT Series Suffix (PT1234 x )
Case/Pin
Order
Package
Configuration
Suffix
Code
Vertical
N
(ENM)
Horizontal
A
(ENN)
SMD
C
(ENP)
(Reference the applicable package code drawing for
the dimensions and PC layout)
Typical Application
PT4820 Series
Description
The PT4820 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
35W, these regulators are ideal for
powering many mixed logic appli-
cations. The triple-output voltage
combination allows for a compact
multiple-output power supply in a
single low-profile DC/DC module.
The available output voltage
options include a low-voltage power
bus for a DSP or ASIC core, and
two additional standard logic supply
voltages.
The PT4820 series incorporates
many features to simplify system
integration. These include a flexible
On/Off enable control, an input
under-voltage lock-out, and over-
temperature protection. All outputs
have short-circuit protection and are
internally sequenced to meet the
power-up and power-down require-
ments of popular DSP ICs.
The PT4820 series is housed in
a space-saving solderable case. The
module requires no external heat sink
and can occupy as little as 1.3 in2 of
PCB area.
Cin
= Optional
Co1, Co2, Co3
= Optional; See specifications
EN1 & EN2 pins:
See On/Off Enable Logic
35-W Triple Output Isolated DC/DC
Converter for Logic Applications
C
IN
+
Co
3
+
Co
2
+
Co
1
+
DSL, DSP,
or ASIC
Chipset
I/O
Logic
Core
+V
IN
–V
IN
18
PT4820
EN 2
EN 1
+Vo
1
+Vo
2
+Vo
3
COM
V
1 Adj
V
2 Adj
V
3 Adj
COM
+V
IN
–V
IN
12,13
11
16,17
15
20,21
19
9,10
3
1
2
4
COM 14
Over-Temperature Shutdown
Under-Voltage Lockout
Space Saving Package:
1.3 sq. in. PCB Area (suffix N)
Solderable Copper Case
Safety Approvals:
UL60950
CSA 22.2 950
VDE EN60950
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