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參數(shù)資料
| 型號(hào)： | LQD25A48-5V0-3V3E |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 87.5 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | QUARTER BRICK PACKAGE-7 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 98K |
| 代理商： | LQD25A48-5V0-3V3E |
DC/DC CONVERTERS
High Current, High Efficiency, Low Profile
1
2 YEAR WARRANTY
NEW Product
All specifications are typical at nominal input, full load at 25°C ambient unless otherwise stated
SPECIFICATIONS
File Name: quarter_brick_dual.pdf Rev: 04 Jan 2004
Two independent outputs
High full load efficiency
Wide ambient temperature range of -40C to +85C
Up to 100% load imbalance
Tracking, monotonic start-up
Starts into pre-biased outputs
Basic insulation system
Over-voltage and over-temperature protection
100V, 100ms input voltage transient response
Secondary side control, no optocouplers,
fast transient load response
These are new high efficiency, open-frame, isolated 40A converters in an industry standard
dual quarter-brick footprint. These converters deliver high output current at low voltages,
and excellent useable power density for today’s high end applications. This series features
an input voltage range of 36 to 75VDC and output voltages of 1.2V/3.3V, 1.5V/3.3V,
1.8V/3.3V 2.5V/3.3V, and 5.0V/3.3V. The output voltage on each model is adjustable from
90% to 110% of the nominal value. Typical efficiencies are 90%. This series also has a
remote ON/OFF capability. Over-current and over-voltage protection features are included
as standard. Designed to meet international safety agency approvals, including EN60950-1
and UL/cUL60950, this series reduces compliance costs and time to market.
Quarter-Brick Series
Dual output
EMC CHARACTERISTICS
Immunity:
ESD air enclosure
EN61000-4-2 8kV/6kV (O/P within spec.)
Radiated field enclosure
EN61000-4-3 10V/m
(O/P within spec.)
Conducted
EN61000-4-6 10V
(O/P within spec.)
Input transients
100V, 100ms
GENERAL SPECIFICATIONS
Efficiency
See table
Basic insulation
Input/output
2250VDC
Switching frequency
Fixed
480kHz
Approvals and
(See Notes 1 and 2)
EN60950-1 VDE
standards
UL/cUL 60950
Material flammability
UL94V-0
Weight
34g (1.2oz)
MTBF
Telcordia Tech SR-332 2,883,816 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient.,
-40°C to +85°C
temperature
Non-operating
-55°C to +125°C
PROTECTION
Short-circuit
Continuous
Over-voltage
Non-latching
Thermal
125C hot spot temperature with
automatic recovery
OUTPUT SPECIFICATIONS
Voltage adjustability
Both outputs
±10% min.
Minimum load
Both outputs
0%
Ripple and noise
20MHz bandwidth
50mV pk-pk max.
15mV rms max.
Short circuit protection
Both outputs
Turn-on characteristics
Both outputs
Monotonic
INPUT SPECIFICATIONS
Input voltage range
48V nominal
36 to 75VDC
Input current
No load
80mA max.
Remote OFF
6mA max.
Active high remote ON/OFF
Logic compatibility
Open collector ref to -input
ON
Open circuit or >2.4VDC
OFF
<0.4VDC
Undervoltage lockout
Power up
35.5V (typ.)
Power down
33.5V (typ.)
Start-up time
Power up
14ms (typ.)
Remote ON/OFF
14ms (typ.)
Patent No. 6,765,810
Other Patents Pending
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E135734
VDE Certificate No. 10401-3336-0197
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