EMERSON-NETWORKPOWER LES25B48

Embedded Power for
Business-Critical Continuity
Rev. 11.25.08_138
Eighth-Brick B Series
1 of 4
Eighth-Brick B Series
Total Power:
Up to 80 Watts
Input Voltage: 36-75 Vdc
No. of Outputs: Single
Special Features
•High efficiency topology
•Industry standard eighth-brick foot
print (identical to quarter-brick pinout)
Electrical Specifications*
Output
Voltage adjustability:
Minimum load:
Overshoot:
At turn-on and turn-off
•38% space savings over quarter-
Undershoot:
At turn-on and turn-off
brick converters
Transient Response:
(See Note 1)
•Low profile through-hole and
surface mount version
•Wide ambient temperature
range, -40 ºC to +85 ºC
90% to 110%
0A
None
None
5% Vout typ. deviation
40 µs recovery
Input
•90% to 110% output trim
Input voltage range:
48 V nominal
•100 V, 100 ms input voltage
transient rated
Input current:
No load
Remote OFF
•Meets basic insulation
requirements of EN60950-1
Active high remote ON/OFF
Logic compatibility:
ON
OFF
Undervoltage Lockout: Power up
35.5 V (typ.)
•Regulation to zero load
Power up
35.5 V (typ.)
•Fixed frequency switching
Start-up time:
(See Note 2)
Power up
Remote ON/OFF
25 ms (typ.)
5 ms (typ.)
•Industry standard feature sets:
UVLO, OVP, OCP, OTP, O/P trim, remote sense
•Fast transient switching
•EU directive 2002/95/EC
compliant for RoHS
Safety
• UL/cUL60950-1 CAN/CSA 22.2
• TUV EN/IEC60950-1
*All specifications are typical at nominal input,
full load at 25 °C ambient unless otherwise stated.
36-75 Vdc
100 mA
10 mA
TTL compatible ref to -input
>2.4 Vdc
<0.8 Vdc
Embedded Power for
Business-Critical Continuity
Electrical Specifications
Rev. 11.25.08_138
Eighth-Brick B Series
2 of 4
Notes
General
Basic insulation:
Input/output
Switching frequency:
Fixed
Approvals and standards:
Material flammability:
UL94V-0
Weight:
20 g (0.70 oz)
MTBF:
Telcordia SR-332 Issue 1,
50% stress, 40 °C ambient
1 di/dt = 1 A/µs, Vin = 48 Vdc, Tc = 25 °C, load change =
50% to 75% lo max. and 75% to 50% lo max. Deviation
varies by model. For further details see Technical
Reference Notes (TRN).
2 Start-up into resistive load.
3 This product is only for inclusion by professional
installers within other equipment and must not be
operated as a stand alone product.
4 Recommended input fusing is up to 10 A HRC 200 V
rated fuse.
5 Warranty: 2 years.
6 through-hole version intended for wave soldering
process.
7 The ‘J’ suffix indicates that these parts are Pb-free
(RoHS 6/6) compliant. 2250 V dc
500 kHz
EN60950-1 VDE
UL/cUL60950-1
4.2 M hours
EMC Characteristics
Immunity:
ESD air enclosure:
Radiated field enclosure:
Conducted:
Input transients:
EN1000-4-2 8 kV/6 kV
EN1000-4-3 10 V/m
EN1000-4-6 10 V
100 V, 100 ms
(O/P within spec.)
(O/P within spec.)
(O/P within spec.)
Environmental Characteristics
Thermal performance:
Operating ambient
temperature
Non-operating
-40 °C to +85 °C
-40 °C to +125 °C
Protection
Short-circuit:
115% with automatic recovery
Overvoltage:
125% Vo (typ) with automatic recovery
Thermal:
125 °C hot spot temperature with
automatic recovery
Ordering Information
Regulation
Output
Voltage
Output
Current
(Max)
Efficiency
(Typ)
Set Point
Accuracy
(Typ)
Line
Load
Ripple & Noise Model Number(7)
(Typ)
12.0 V
6.7
92%
±1%
±0.1%
±0.2%
70 mVp-p
LES06B48-12V0REJ
5.0 V
13
92%
±1%
±0.1%
±0.2%
30 mVp-p
LES13B48-5V0REJ
3.3 V
20
91%
±1%
±0.1%
±0.2%
30 mVp-p
LES20B48-3V3REJ
2.5 V
22
90%
±1%
±0.1%
±0.2%
30 mVp-p
LES22B48-2V5REJ
1.8 V
25
89%
±1%
±0.1%
±0.2%
30 mVp-p
LES25B48-1V8REJ
1.5 V
25
88%
±1%
±0.1%
±0.2%
25 mVp-p
LES25B48-1V5REJ
1.2 V
25
86%
±1%
±0.1%
±0.2%
25 mVp-p
LES25B48-1V2REJ
1.0 V
25
85%
±1%
±0.1%
±0.2%
20 mVp-p
LES25B48-1V0REJ
Part Number System with Options
Product
Family
Rated Output
Current
Vintage
Nominal Rated
Input Voltage
Type of
Output
Remote
ON/OFF LOGIC
Body Height, Package Type
and Pin Length
RoHS
Compliance (7)
LES
22
B
48 -
2V5
R
E
J
L = Low Profile
E = 1/8 Brick
S = Single Output
22 = 22 Amps,
20 = 20 Amps, etc.
A = 1st generation
B = 2nd generation
48 = 48 Volts
2V5 = 2.5 Volts
(36 - 75 VDC range) 3V3 = 3.3 Volts
Blank = Positive
R = Negative
A = 0.33 in (8.1 mm),Through Hole
0.19 in (4.8 mm), Pins
E = 0.37 in (9.1 mm), Through Hole
0.19 in (4.8 mm), Pins
S = 0.33 in (8.1 mm), Surface Mount
J = Pb free (RoHS
6/6 compliant)
Embedded Power for
Business-Critical Continuity
CAL DETAILS
AND DIMENSION OPTIONS FOR PTH PIN (LES B SERIES)
Through-hole Mechanical Drawing (for 1.8, 1.5, 1.2 and 1.0 V)
Rev. 11.25.08_138
Eighth-Brick B Series
3 of 4
2.30 [58.4]
1
8
7
6
2
0.30 [7.62]
0.90 [22.9]
0.15 [3.8]
5
4
3
2.00 [50.80]
Clearance
(see table)
Height
(see table)
0.19 [4.8]
0.040 ± 0.004
[1.02 ± 0.10]
(6 pls)
0.062 ± 0.004
[1.57 ± 0.10]
(2 pls)
0.080 ± 0.004
[ 2.03 ± 0.10]
(2 pls)
2.30 [58.4]
0.90 [22.9]
Suffix
0.15 [3.81]
0.30 [7.62]
0.058 ± 0.004
[ 1.50 ± 0.10]
(6 pls)
2.00 [50.80]
0.15 [3.8]
RECOMMENDED HOLE PATTERN
2.30 [58.4]
8
7
6
2
0.30 [7.62]
3
5
4
0.90 [22.9]
0.15 [3.8]
0.014 [0.35] Min
0.33 ± 0.025
[6.4 ± 0.64]
Lead coplanarity within 0.006 [0.15]
0.062 ± 0.004
[1.57 ± 0.10]
(8 pls)
0.102 ± 0.004
[ 2.60 ± 0.10]
(8 pls)
0.90 [22.9]
0.15 [3.81]
0.30 [7.62]
0.15 [3.8]
2.00 [50.80]
RECOMMENDED HOLE PATTERN
Minimum
0.33 (8.4)
0.004 (0.10)
0.37 (9.4)
0.047 (1.20)
Pin Connections
Function
1
Vin+
2
ON/OFF
3
Vin-
4
Vout-
5
Sense-
6
Trim
7
Sense+
8
Vout+
Dimensions are in inches (millimeter)
Tolerances (unless otherwise specified)
X.XX±0.02 (X.X±0.5)
X.XXX±0.010 (X.XX±0.25)
2.00 [50.80]
2.30 [58.4]
Clearance
±0.025 [0.64]
Pin number
Surface-mount Mechanical Drawing (for 1.8, 1.5, 1.2 and 1.0 V)
1
A
E
Height
Embedded Power for
Business-Critical Continuity
ANICAL DETAILS AND DIMENSION OPTIONS FOR PTH PIN (LES B SERIES)
Americas
Through-hole Mechanical Drawing (for 2.5, 3.3, 6 and 12 V)
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone:+1 760 930 4600
Facsimile: +1 760 930 0698
2.30 [58.4]
1
8
7
6
2
0.30 [7.62]
5
4
3
Rev. 11.25.08_138
Eighth-Brick B Series
4 of 4
0.90 [22.9]
Europe (UK)
0.15 [3.8]
2.00 [50.80]
Clearance
(see table)
Height
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone:+44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
(see table)
0.19 [4.8]
0.040 ± 0.004
[1.02 ± 0.10]
(6 pls)
0.062 ± 0.004
[1.57 ± 0.10]
(2 pls)
0.080 ± 0.0043
[ 2.03 ± 0.10]
(2 pls)
2.30 [58.4]
Asia (HK)
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
Telephone:+852 2176 3333
Facsimile: +852 2176 3888
0.90 [22.9]
0.15 [3.8]
For global contact, visit:
0.15 [3.81]
0.30 [7.62]
0.058 ± 0.004
[ 1.50 ± 0.10]
(6 pls)
2.00 [50.80]
HOLE PATTERN
NICAL DETAILS ANDRECOMMENDED
DIMENSION
OPTIONS FOR SMT PIN (LES SERIES)
Surface-mount Mechanical Drawing (for 2.5, 3.3, 6 and 12 V)
www.powerconversion.com
[email protected]
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
2.30 [58.4]
1
8
7
6
2
0.30 [7.62]
0.90 [22.9]
0.15 [3.8]
5
4
3
Emerson Network Power.
The global leader in enabling
business-critical continuity.
AC Power
Connectivity
2.00 [50.80]
DC Power
0.33 ± 0.025
[8.4 ± 0.64]
2.30 [58.4]
0.014 [0.35] Min
Embedded Computing
Lead coplanarity within 0.006 [0.15]
Embedded Power
0.062 ± 0.004
[1.57 ± 0.10]
(8 pls)
0.102 ± 0.004
[ 2.60 ± 0.10]
(8 pls)
0.90 [22.9]
0.15 [3.81]
0.30 [7.62]
Monitoring
Outside Plant
Power Switching & Controls
Precision Cooling
Racks & Integrated Cabinets
Services
Surge Protection
0.15 [3.8]
2.00 [50.80]
RECOMMENDED HOLE PATTERN
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