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LQD40A48-3V3-1V8EJ

Description
Isolated DC/DC Converters 102W 36-75Vin Dual 1.8V 20A, 3.3V 20
Categorysemiconductor    Power management   
File Size4MB,3 Pages
ManufacturerArtesyn
Websitehttp://www.artesyn.com
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LQD40A48-3V3-1V8EJ Overview

Isolated DC/DC Converters 102W 36-75Vin Dual 1.8V 20A, 3.3V 20

LQD40A48-3V3-1V8EJ Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerArtesyn
Product CategoryIsolated DC/DC Converters
RoHSDetails
Number of Outputs2 Output
Output Power102 W
Output Current-Channel 120 A
Output Current-Channel 220 A
Isolation Voltage2.25 kVDC
Mounting StyleThrough Hole
Package / Case Size1/4 Brick
Length2.3 in
Width1.45 in
Height0.34 in
ProductIsolated
Operating Temperature Range- 40 C to + 85 C
Efficiency90.5 %
Input Voltage, Max75 VDC
Input Voltage, Min36 VDC
Input Voltage, Nominal48 VDC
Maximum Operating Temperature+ 85 C
Mechanical StyleIsolated
Minimum Operating Temperature- 40 C
Output Voltage V1, Nominal1.8 VDC
Output Voltage V2, Nominal3.3 VDC
Factory Pack Quantity240
Quarter-Brick Series
Dual output
DC/DC CONVERTERS
High Current, High E ciency, Low Pro le
NEW Product
1
Two independent outputs
High full load e ciency
Wide ambient temperature range of -40 ºC to +85 ºC
Up to 100% load imbalance
Tracking, monotonic start-up
Starts into pre-biased outputs
Basic insulation system
Over-voltage and over-temperature protection
100 V, 100 ms input voltage transient response
Secondary side control, no optocouplers,
fast transient load response
Available RoHS compliant
These are new high e ciency, open-frame, isolated 40 A converters in an industry standard dual
quarter-brick footprint. These converters deliver high output current at low voltages, and excel-
lent useable power density for today’s high end applications. This series features an input volt-
age range of 36 Vdc to 75 Vdc and output voltages of 1.2 V/3.3 V, 1.5 V/3.3 V, 1.8 V/3.3 V 2.5
V/3.3 V, and 5 V/3.3 V. The output voltage on each model is adjustable from 90% to 110% of
the nominal value. Typical e ciencies are 90%. This series also has a remote ON/OFF capabili-
ty. Over-current and over-voltage protection features are included as standard. Designed to
meet inter national safety agency approvals, including EN60950-1 and UL/cUL60950, this series
reduces compliance costs and time to market.
All speci cations ar
OUTPUT SPECIFICA
Voltage adjustability
M inimum loa d
Ripple and noise
Shor t circuit pr otection
Turn-on characteristics
INPUT SPECIFICATIONS
Input voltage range
Input cur rent
Active high remote ON/OFF
Logic compatibility
ON
OFF
Undervoltage lockout
Start-up time
Power up
Power down
Power up
Remote ON/OFF
48 V nominal
No load
Remote OFF
36-75 Vdc
80 mA max.
6 mA max.
Open collector ref to -input
O pe n c irc uit or >2 . 4 V dc
<0 . 4 V d c
35.5 V (typ.)
33.5 V (typ.)
14 ms (typ.)
14 ms (typ.)
Both outputs
e typical at nominal input, full load at 25
TIONS
Both outputs
B oth outputs
20 MHz bandwidth
±10% min.
0%
50 mV pk-pk max.
15 mV rms max.
Both outputs
Monotonic
°C ambient unless otherwise stated
EMC CHARACTERISTICS
2 YEAR WARRANTY
SPECIFICA
TIONS
Immunity:
ESD air enclosure
EN61000-4-2 8 kV/6 kV(O/P within spec.)
Radiated eld enclosur e EN61000-4-3 10 V/m (O/P within spec.)
Conducted
EN61000-4-6 10 V
(O/P within spec.)
Input transients
100 V, 100 ms
GENERAL SPECIFICA
E ffic ie nc y
Basic insulation
Switching fr equency
Approvals and
s ta nda rds
M a te ria l fla mma bility
We ight
MTBF
Input/output
F ix e d
(See Notes 1 and 2)
TIONS
S e e ta ble
2250 Vdc
480 kH z
EN60950-1 VDE
U L /c U L 6 0 9 5 0
U L 9 4 V- 0
3 4 g (1 . 2 oz )
Telcor dia T ech SR-332 2,883,816 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient.,
temperature
Non-operating
-40 °C to +85 °C
-55 °C to +125 °C
PROTECTION
S hort- c irc uit
Over volta ge
T he r m a l
C ontinuous
N on- la tc hing
1 2 5 ºC hot s pot te mpe ra ture with
automatic recovery
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E135734/60950
VDE Certi cate No. 10401-3336-0197
File Name: quarter_brick_dual.pdf Rev (01): 29 Mar 2006
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