QUS20-120-NVDRC Datasheet, PDF (1/8 Pages) C&D Technologies – BUS CONVERTER 48Vin, 12Vout @ 20A

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Programmable, Single Output, 1.1V - 1.85Vout @ 60A
48Vin, 12Vout @ 20A
Features
• 48vin, Isolated, 4:1 Fixed Conversion Ratio (12v Nominal Out)
• 240watt Max Output
• Parallel For Higher Output Power
• ±10% Current Share Accuracy
• Over-temperature Protection
• 96% Efficiency
• Remote Enable (Primary Side)
• Positive or Negative Enable Logic
• Current Limit
• Vertical Mount
This product is not fuse protected. User is responsible for providing system protection.
Consult factory for application information.
Table 1:
Input Characteristics
Input Voltage Operating Range
Input Voltage Absolute Maximum
Input Undervoltage Lockout
Maximum Input Current
No-Load Input Current
Disabled Input Current
Input Reflected Ripple Current (2)
Inrush Current Transient
Enable - Negative Logic Version
Internal 10K pull-up to 6.2V
Enable - Positive Logic Version
Internal 100K pull-down to gnd
Notes and Conditions (1)
Turn-on Threshold
Turn-off Threshold
Steady-State (20Amp output)
Enable state, on Load (48Vin)
Disabled State (48V input)
On State Range
Off State Range
On State Range
Off State Range
Min Typ Max
36
48
55
60
36.5
37.6
34.5
35.5
5.1
72
21
50
0.20
-0.6
0.7
0.8
6.2
0.8
6.2
-0.6
0.7
Units
Vdc
Vdc
Vdc
Vdc
Adc
mA
mA
mArms
A²s
Vdc
Vdc
Vdc
Vdc
Output Characteristics
Output Voltage Set Point
Output Load Regulation
Output Voltage Total Regulation
Output Ripple Voltage & Noise (3)
Output Current Operating Range (4)
Efficiency
Turn-on Time
Table 2:
Notes and Conditions (1)
(Vin/4) +1% / -1%
(Vin/4) + 1% / -5%
20 MHz Bandwidth
Io=20A, Vin=48V (See curves)
Vin present: Enable to 90% Vout
Min Typ Max Units
12
Vdc
-5
-3
1
%
8.5
90
0
13.9 Vdc
150 mVp-p
20
A
95.6
%
10
mS
4118 14th Avenue, Suite 4
Markham, Ontario L3R 0J3
1-905-944-2850
www.cd4power.com
QUS20-120_084-20868-40_RevB_Jan18-2006.fm
4607 S.E. International Way
Milwaukie, Oregon 97222
1-971-206-2800
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