LQS50A48-1V5EJ 반도체 회로 부품 판매점
DC-DC / Industry Standard Isolated Quarter Brick
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 Emerson |
Quarter-Brick Series
Dual output
DC/DC CONVERTERS High Current, High Efficiency, Low Profile
• Two independent outputs
• High full load efficiency
• 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 efficiency, 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 efficiencies 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 international safety agency approvals, including EN60950-1 and UL/cUL60950, this series
reduces compliance costs and time to market.
All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated
1
NEW Product
Patent No. 6,765,810
Other Patents Pending
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
Both outputs
Minimum load
Both outputs
Ripple and noise
20 MHz bandwidth
Short circuit protection
Turn-on characteristics Both outputs
±10% min.
0%
50 mV pk-pk max.
15 mV rms max.
Both outputs
Monotonic
INPUT SPECIFICATIONS
Input voltage range
48 V nominal
36-75 Vdc
Input current
No load
Remote OFF
80 mA max.
6 mA max.
Active high remote ON/OFF
Logic compatibility
ON
OFF
Open collector ref to -input
Open circuit or >2.4 Vdc
<0.4 Vdc
Undervoltage lockout
Power up
Power down
35.5 V (typ.)
33.5 V (typ.)
Start-up time
Power up
Remote ON/OFF
14 ms (typ.)
14 ms (typ.)
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E135734/60950
VDE Certificate No. 10401-3336-0197
EMC CHARACTERISTICS
Immunity:
ESD air enclosure
Radiated field enclosure
Conducted
Input transients
EN61000-4-2 8 kV/6 kV(O/P within spec.)
EN61000-4-3 10 V/m (O/P within spec.)
EN61000-4-6 10 V (O/P within spec.)
100 V, 100 ms
GENERAL SPECIFICATIONS
Efficiency
See table
Basic insulation
Input/output
2250 Vdc
Switching frequency
Fixed
480 kHz
Approvals and
standards
(See Notes 1 and 2) EN60950-1 VDE
UL/cUL 60950
Material flammability
UL94V-0
Weight
34 g (1.2 oz)
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
Overvoltage
Thermal
Continuous
Non-latching
125 ºC hot spot temperature with
automatic recovery
File Name: quarter_brick_dual.pdf Rev (01): 29 Mar 2006
Quarter-Brick Series
Dual output
DC/DC CONVERTERS High Current, High Efficiency, Low Profile
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
2
NEW Product
OUTPUT VOLTAGE
OUTPUT
OVP
EFFICIENCY
NOMINAL INITIAL SET POINT (3) REGULATION BAND CURRENT TRIP POINT
(TYP.)
MODEL NUMBER (4,5)
12
1
2
1
2
12
1
2
QUARTER-BRICK DUAL OUTPUT PERFORMANCE MODELS
1.2 V 3.3 V 1.18-1.22 V 3.25-3.35 V 1.16-1.24 V 3.2-3.4 V 20 A 20 A 1.5 V 4 V
90.0% LQD40A48-3V3-1V2J
1.5 V 3.3 V 1.48-1.55 V 3.25-3.35 V 1.44-1.55 V 3.2-3.4 V 20 A 20 A 1.8 V 4 V
90.5% LQD40A48-3V3-1V5J
1.8 V 3.3 V 1.77-1.83 V 3.25-3.35 V 1.75-1.85 V 3.2-3.4 V 20 A 20 A 2 V
4V
90.5% LQD40A48-3V3-1V8J
2.5 V 3.3 V 2.46-2.54 V 3.25-3.35 V 2.42-2.58 V 3.2-3.4 V 20 A 20 A 3 V
4V
90.5% LQD40A48-3V3-2V5J
QUARTER-BRICK DUAL OUTPUT VALUE MODELS
1.2 V 3.3 V 1.18-1.22 V 3.25-3.35 V 1.16-1.24 V 3.2-3.4 V 15 A 15 A 1.5 V 4 V
90.0% LQD30A48-3V3-1V2J
1.5 V 3.3 V 1.48-1.52 V 3.25-3.35 V 1.44-1.55 V 3.2-3.4 V 15 A 15 A 1.8 V 4 V
90.5% LQD30A48-3V3-1V5J
1.8 V 3.3 V 1.77-1.83 V 3.25-3.35 V 1.75-1.85 V 3.2-3.4 V 15 A 15 A 2 V
4V
90.5% LQD30A48-3V3-1V8J
2.5 V 3.3 V 2.46-2.54 V 3.25-3.35 V 2.42-2.58 V 3.2-3.4 V 15 A 15 A 3 V
4V
91.0% LQD30A48-3V3-2V5J
3.3 V 5 V 3.25-3.35 V 4.92-5.08 V 3.20-3.40 V 4.85-5.15 V 15 A 10 A 4 V
6V
91.0% LQD25A48-5V0-3V3J
Part Number System with Options
LQD40A48-3V3-1V8RANJ(5)
L = Low Profile
Q = 1/4 Brick
Number of Outputs
D = Dual
RoHS Compliance (4)
J = Pb-free (RoHS 6/6 compliant)
Pin Length Options
Blank = 0.188” (4.78 mm)
N = 0.145” (3.68 mm)
K = 0.110” (2.79 mm)
Rated Output Current
(Sum of all outputs)
40 A = 40 Amps
Nominal Rated Input Voltage
48 = 48 Volts (36 V to 75 V Range)
Output Voltage of V2
3V3 = 3.3 Volts
Body Height and Package Type
A = 0.300” (7.62 mm), Through-Hole,
E = 0.340” (8.64 mm), Through-Hole,
S = 0.285” (7.24 mm), Surface-Mount
Remote ON/OFF Logic
No Suffix = Positive
Suffix ‘R’ = Negative
Output Voltage of V1
1V8 = 1.8 Volts, 1V2 = 1.2 Volts etc.
Notes
1 User must provide recommended fuses in order to comply with safety
approvals. See Application Note 137.
2 Maximum continuous output power.
90 Watts for LQD40A48-3V3-1V2J models
96 Watts for LQD40A48-3V3-1V5J models
102 Watts for LQD40A48-3V3-1V8J models
116 Watts for LQD40A48-3V3-2V5J models
67.5 Watts for LQD30A48-3V3-1V2J models
72 Watts for LQD30A48-3V3-1V5J models
76.5 Watts for LQD30A48-3V3-1V8J models
87 Watts for LQD30A48-3V3-2V5J models
99.5 Watts for LQD25A48-5V0-3V3J models
3 Io1 = Imax, Io2 = Imax.
4 TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for details.
5 The part number cannot exceed 18 characters. If the desired part
number with options contains 19 characters then the last dash ‘-’ in the
part number is removed i.e. LQD25A48-5V0-3V3RAJ becomes
LQD25A48-5V03V3RAJ. If the desired part number with options contains
20 characters then all dashes ‘-’ are removed, i.e. LQD25A48-5V0-
3V3RANJ becomes LQD25A485V03V3RANJ.
File Name: quarter_brick_dual.pdf Rev (01): 29 Mar 2006
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