S T A N D A R D D C / D C C O N V E R T E R S
66
Input Characteristics
Input Voltage Range:
36-75 VDC
Input Under Voltage Shutdown
33V (36-75) VDC
Input Over Voltage Shutdown
80V (48Vin)
Input Filtering:
Pi filter
Efficiency:
See Available Models Chart
No Load Input Current:
15mA
Output Characteristics
Output Voltage Accuracy:
+/-1%
Output Voltage Adjustment:
+/-10%
Total Error Band (Singles & Duals):
+/-2% Max. (Singles), +/-3% Max. (Duals)
Minimum Load Requirements:
0% (Singles), 10% (Duals & Triples)
Line Regulation:
+/-0.5% Low Line to High Line
Load Regulation (Singles & Duals):
+/-0.5% (Singles), +/-1.0% (Duals), Min Load to Full Load
Ripple and Noise:
50mV or 1% pk-pk, 20MHz Bandwidth
Transient Response/Recovery Time:
200S, 25% Load Step
Temperature Coefficient:
+/-0.02% / C
Short Circuit Protection:
Continuous (Hiccup Mode)
Over Voltage Protection:
Standard
Environmental Characteristics
Operating Temperature Range (Ambient):
-40C to +85C, See 2500LN Series Data
Sheet for Derating curves.
Storage Temperature Range:
-55C to +125C
Maximum Case Temperature:
105C Baseplate
Thermal Shutdown:
115C Baseplate
Humidity:
Up to 95%, Non-condensing
Vibration
5Grms, 5Hz to 2KHz
Reliability (MTBF per Mil-HDBK-217):
>1,200,000 hours, +25C, Ground Benign
Demonstrated MTBF:
>5 million hours at +40C
General Characteristics
Switching Frequency:
400KHz, Fixed
Isolation (Input to Output):
1500VDC minimum (1 minute)
Isolation Capacitance:
1200pF
Weight:
1.2oz (34g)
Case Material:
Aluminum baseplate with black anodized
aluminum case
Agency Approvals
UL, CSA, TUV and CE (LVD, 48 Vin Models)
Additional Features
Remote Shutdown (Positive logic standatd
Supply On:
Open or >3.5 VDC
Supply Off:
<0.8 VDC
Optional Negative Logic enable
Key Features:
Lucent
TM
LW020 and
LW025 compatible
Unencapsulated
construction
Single & Dual Output
Models
Industry Standard 1" x
2" x 0.375" Footprint
Ideally Suited For:
Telecom equipment
Mixed analog/digital
subsystems
Distributed power
networks
2500LN series
12 to 25 watts
All specifications are typical at 25 degrees C with nominal input voltage and full output unless
otherwise noted. Specifications are subject to change without notice. All dimensions are typical.
67
Available Models
Input
Nominal
Voltage
Output
Max. Output
Model
Input Voltage
Range
Voltage
Current
Efficiency @
(VDC)
(VDC)
(VDC)
(mA)
Full-Load (%)
2502V0S48LN
48
36-75
2.0
6000
74
2502V5S48LN
48
36-75
2.5
6000
82
2503V3S48LN
48
36-75
3.3
6000
79
2505S48LN
48
36-75
5.0
5000
81
2512S48LN
48
36-75
12.0
2100
85
2515S48LN
48
36-75
15.0
1700
88
2505D48LN
48
36-75
+/-5.0
+/-3000*
83
2512D48LN
48
36-75
+/-12.0
+/-1000*
85
2515D48LN
48
36-75
+/-15.0
+/-800*
86
*Total output power not to exceed 25W
Outline Drawing
SINGLE & DUALS
Pinout Chart
* For Negative logic, Add "-1" suffix
For Positive logic, Add "-4" suffix
** Optional, for output trim, Add "-9" suffix
Pin
Single
Duals
1
+Vin
+Vin
2
-Vin
-Vin
4
*REMOTE ON/OFF *REMOTE ON/OFF
5
No pin
+Vout
6
+Vout
COMMON
7
-Vout
-Vout
8
Trim
Trim
Shown with optional heatsink. To order add "-H" suffix to end of part number
0.70
17.80
1.80
45.72
0.60
15.24
0.20
5.08
0.30
7.62
1.60
40.60
0.70
17.78
0.10
2.54
0.40
10.20
HEATSINK IS OPTIONAL
0.10
2.50
0.50
12.70
0.02 TYP
0.51
2.00
50.80
PIN DIA 0.04 (1.02) (TYP 7 PLCS
2.00
50.80
0.64
16.26
N/C 5
+VO 6
-VO 7
Trim 8
1 +VI
2 -VI
4 TTL
VENT SLOTS ARE TYPE FOR
TWO LONG SIDES ONLY.
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