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參數資料
| 型號： | PQ48020QNA25PKS |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 1/13頁 |
| 文件大?。?/td> | 720K |
| 代理商： | PQ48020QNA25PKS |
Product # PQ48020QNA25
Phone 1-888-567-9596
Doc.# 005-2QN420D_B
9/5/01
Page 1
Technical Specification
48Vin 2.0Vout 25A
Quarter
Brick
High Efficiency, No Heatsink, Isolated DC/DC Converter
The PQ48020QNA25 PowerQor quarter brick
converter is a next-generation, board-mountable,
isolated, fixed switching frequency dc/dc
converter that uses synchronous rectification to
achieve extremely high conversion efficiency. The
power dissipated by the converter is so low that a
heatsink is not required, which saves cost, weight,
height, and application effort. All of the power and
control components are mounted to the multi-layer PCB
substrate with high-yield surface mount technology.
Since the PowerQor converter has no explicit
thermal connections, it is extremely reliable.
PQ48020QNA25 Module
Mechanical Features
Industry standard pin-out configuration (pin for pin
compatible with Lucent QHW series)
Industry standard size: 1.45” x 2.3”
Total height less than 0.40”, permits better airflow
and smaller card pitch
Total weight: 34 grams (1.2 oz.), lower mass great-
ly reduces vibration and shock problems
Safety Features
2000V, 10 M
input-to-output isolation provides
input/output ground separation
UL 1950 recognized (US & Canada), basic insula-
tion rating
TUV certified to EN60950
Safety Features (cont.)
Meets 72/23/EEC and 93/68/EEC directives
which facilitates CE Marking in user’s end product
Board and plastic components meet 94V-0 flamma-
bility requirements
Operational Features
Ultra-high efficiency, 84% at full rated load current
Delivers up to 25 amps of output current with mini-
mal derating - no heatsink required
Wide input voltage range: 35V – 75V meets or
exceeds all 48V bus standards
Fixed frequency switching provides predictable EMI
performance
No minimum load requirement means no preload
resistors required
Protection Features
Input under-voltage lockout disables converter at
low input voltage conditions
Output current limit and short circuit protection
protects converter from excessive load current or
short circuits
Output over-voltage protection protects load from
damaging voltages
Thermal shutdown protects converter from abnor-
mal environmental conditions
Control Features
On/Off control referenced to input side (positive
and negative logic options are available)
Remote sense for the output voltage compensates
for output distribution drops
Output voltage trim: +10%/-20%, permits custom
voltages and voltage margining
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