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Page 1
BUS CONVERTER
EUS30-080 Model
www.cd4power.com
EUS30-080-6200901535_C03_03Jan07
Features:
ü 48 Vin, Isolated, 6:1 Fixed Conversion Ratio
ü 220 Watt Output at 48 Vin, 55 C, 200 LFM
ü 170 Watt Output at 38 Vin, 55 C, 200 LFM
ü Industry Standard 1/8 Brick Footprint
ü Remote Enable (Primary Side, Positive or Negative)
ü Over-temperature and Over Current Protection
ü Direct Parallel Operation for Higher Power
ü RoHS Compliant
Table 1
Input Characteristics
Notes & Conditions (1)
Min
Typ.
Max
Units
Input Voltage Operating Range
36
48
55
Vdc
Input Voltage Absolute Maximum
60
Vdc
Turn-on Threshold
36
37.5
Vdc
Turn-off Threshold
34
35.5
Vdc
Input Undervoltage Lockout
Hysteresis Voltage
2
Vdc
Turn-on Threshold
55
57
Vdc
Turn-off Threshold
56
58
Vdc
Input Overvoltage Lockout
Hysteresis Voltage
2
Vdc
Maximum Input Current
Steady-State (30 A out)
5.4
Adc
No-Load Input Current
Enabled state, no load (48 Vin)
70
mA
Disabled Input Current
Disabled state (48 Vin)
7
mA
Input Reflected Ripple Current
Note (8)
25
mA p-p
Inrush Current Transient
0.2
A
2s
Enable – Negative Logic Version
Internal 10 K pull-up to 5 V.
On State range
Off State range
-0.1
2.4
0.8
5.0
Vdc
Enable – Positive Logic Version
Internal 100 K pull-down to GND.
On State range
Off State range
2.4
-0.1
5.0
0.8
Vdc
Table 2
Output Characteristics
Notes & Conditions (1)
Min
Typ.
Max
Units
Output Voltage Set Point (Vo=Vin/6 +0/-0.5%)
Vin = 48.0 V, Io = 0 A
8.0
Vdc
Output Load Regulation
Io = 0 to 30 A
0.5
V
Output Voltage Total Regulation
Vin = 36 to 55 V, Io = 0 to 30 A
5.3
9.2
Vdc
Vin = 42 to 53 V, Io = 0 to 30 A
6.3
8.9
Vdc
Output Ripple Voltage & Noise (2)
20 MHz Bandwidth
70
150
mV p-p
Output Current Operating Range
0
30
A
Output Current Share Accuracy
Percent deviation from ideal (7)
< 10
%
Efficiency
Vin = 48 V, Io = 18 A
95.6
%
Turn-On Time
Vin present: Enable to 90% Vout
10
mS
Start-up Inhibit Time
Enabled: Vin applied to 90% Vout
120
mS
25% step, 0.1A/
s, Vo
130
mV
Transient Response (3)
Recovery Time
100
s
Maximum Output Capacitance
3000
F