VWS SERIES - 100 WATT
DESCRIPTION
FEATURES
VWS DC/DC converters are direct replacement
• 100W Full Brick
• Industry Standard
Footprint
• 6-Sided Shielding
• Superior Transient
Response
converters for industry-standard full bricks.
Featuring a fixed-frequency design, the VWS offers
excellent transient response and predictable EMI
• Fixed Frequency
• 1500V Isolation
• Optional Booster
Module
performance. The VWS can be combined with VWB • 85°C Case Operation
booster modules to provide increased power. VWS
converters use 100% surface-mount construction,
along with planar magnetics, and are fully compati-
ble with production board-washing processes.
TECHNICAL SPECIFICATIONS
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
18 - 36 VDC
36 - 72 VDC
Input Reflected Ripple Current
Undervoltage Lockout - Turn On / Turn Off
50 mA Pk-Pk
35 VDC / 32 VDC
Output
Setpoint Accuracy
±1%
0.2% Vout
0.5% Vout
0.5 VDC
Line Regulation Vin Min. - Vin Max., Iout Rated
Load Regulation Iout Min. - Iout Max., Vin Nom.
Remote Sense Headroom
Minimum Output Current
Efficiency vs. Load (48V Input)
10 % I Rated
95
90
85
80
75
70
65
60
out
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Current Limit Type
Current Limit Threshold Range, % of Iout Rated
Short Circuit Threshold Range, % of Iout Rated
OVP Trip Range
25% Iout
8% Vout
500 µs
±10%
Hiccup
VWS100ZH
EFF. (36v)
110 - 140%
200%
120 - 140% Vout Nom.
Self-Recovering
EFF. (48v)
EFF. (75v)
OVP/UVP type
10
20
30
40
50
LOAD %
60
70
80
90
100
General
Turn-On Time
10 mS
Remote Shutdown
Positive Or Negative Logic
Remote Shutdown Reference
Switching Frequency
Isolation, Input - Output
Isolation, Input - Case
Isolation, Output - Case
Temperature Coefficient
Case Temperature
V
Negative
300 kHz
1500 VDC
1050 VDC
500 VDC
0.2%/°C
in
Notes
†
MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Operating Range
Storage Range
-25 To +85°C
-55 To +115°C
90 To 100°C
5 g, 10 - 55 Hz
2.1 x 10 hrs
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
Safety: Agency approvals may vary from model to model. Please consult
factory for specific model information.
6
†
MTBF (Bellcore TR-NWT-000332)
Units are water-washable and fully compatible with commercial spray or
immersion post wave-solder washing equipment.
Safety
Weight (approx.)
UL, cUL, TUV
6.0 oz
REV. 07/01
1