cdc ncf010

[ Pobierz całość w formacie PDF ]
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Features:
9
Small size, minimal footprint/low profile
9
10A Output Current (all voltages)
9
High Efficiency: up to 95%
9
High reliability
9
RoHS Compliant
9
Cost efficient open frame design
9
Pre-bias monotonic start-up
9
Over-current and Over-temperature protection
Output
Input
Efficiency
Vout
(V)
Iout
(A)
PARD
(mVp-p)
Regulation
Max
Vin
Nom.
(V)
Range
(V)
Iin
Max
(A)
Full Load
Typ. Max.
Line
Load
Typ.
1
10
45
50
+/-0.1%
+/-0.25%
5
3 –5
4.0
86%
1.2
10
45
50
+/-0.1%
+/-0.25%
5
3 –5
4.75
88%
1.5
10
40
50
+/-0.1%
+/-0.25%
5
3 –5
5.75
89%
1.8
10
40
50
+/-0.1%
+/-0.25%
5
3 –5
6.75
91%
2
10
40
50
+/-0.1%
+/-0.25%
5
3 –5
7.4
92%
2.5
10
40
50
+/-0.1%
+/-0.25%
5
3 –5
9.1
93%
3.3
10
40
50
+/-0.1%
+/-0.25%
5
4.5-5.5
7.8
95%
Technical enquiries email: sales@murata-ps.com, tel: +508 339 3000
1
NCF010_6200810000_B01_21/04/08
 Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Murata Power Solutions
Input Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Input Voltage Operating Range
3.0
5
5.5
Vdc
Input Reflected Ripple Current
100
mA p-p
A
2
s
Inrush Current Transient
0.4
Input Filter Type (external)
100
μ
F
Input Turn ON Threshold
2.8
V
Input Turn OFF Threshold
2.7
V
ON Control
Open or 0 to +0.4V
OFF Control
+2.8V to Vin (<3mA)
Output Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Vout Accuracy
50% load
-1.5
+1.5
%
Output Loading
0
10
A
Output Ripple & Noise
@ 20Mhz Bandwidth.
30
mV
Maximum Capacitive Load
Low ESR
8000
μ
F
Vout Trim Range
-10
+10
%
Total Accuracy
Over line/load temperature
<3%
Current Limit
13
16
20
A
Output Line Regulation
-0.1
+0.1
%
Output Load Regulation
+0.25
-0.25
%
Turn-on Overshoot
1
%
SC Protection Technique
Hiccup with auto recovery
Pre-bias Start-up at output
Unit starts monotonically with pre-
bias
Dynamic Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Load Transient
100
mV
50% step, 2.5A/
μ
s
Settling Time
100
μ
s
Frequency
300
khz
Start-Up Time
Vin to Vout and On/Off to Vout
Vout rise to monotonic
<20
ms
General Specifications
Notes & Conditions
Min
Typ.
Max
Units
x10
6
Hrs
MTBF
Calculated (MIL-HDBK-217F)
1.5
x10
6
Hrs
Demonstrated @ 60% Confidence
Level
1
Thermal Protection
Hotspot
110
120
°C
Operating Temperature
Without derating
-40
60
°C
Dimensions
2”Lx0.34”Wx0.5”H
(50.8x8.64x12.7mm)
Pin Dimensions
0.03” (0.76mm)
Pin Material
Matte Sn Finish on component
Leads
Weight
0.3 ounces (8.5g)
Flammability Rating
UL94V-0
Standards Compliance
CSA C22.2, No.60950/UL 60950, Third Edition (2000), File UL E165113
2
NCF010_6200810000_A03_025Jun07
 Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Murata Power Solutions
Thermal Considerations
The power module operates in a variety of thermal environments; however, sufficient cooling
should be provided to help ensure reliable operation of the unit. Heat is removed by
conduction, convection, and radiation to the surrounding environment. The thermal data
presented is based on measurements taken in a set-up as shown in fig 1. when the airflow is
parallel to the long axis of the module. The de-rating applies accordingly.
The temperature at either location should not exceed 110 °C. The output power of the module
should not exceed the rated power for the module (VO, set x IO, max)
.
Figure 1: Thermal Measurement Setup
Convection Requirements for Cooling
To predict the approximate cooling needed for the module, refer to the Power Derating Curve in
Figure 2 to Figure 8.
These derating curve are approximations of the ambient temperature and airflow required to keep the
power module temperature below it's maximum rating. Once the module is assembled in the actual
system, the module's temperature should be verified.
Proper cooling can be verified by measuring the power module's temperature at Q1-pin 6 and Q2-pin
6 as shown in Figure 1.
3
NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
TYPICAL DERATING CURVES
Murata Power Solutions
NCF0100100B (5Vin) Derating Curve
12
10
8
0 LFM
100 LFM
200 LFM
6
4
2
0
0 0 0 0 0 0 0 0 0
Ambient Temperature (C)
Figure 2. Typical Power Derating vs Output Current for 5Vi and 1.0Vo.
NCF0100120B (5Vin) Derating Curves
12
10
8
0 LFM
100 LFM
200 LFM
6
4
2
0
0 0 0 0 0 9 0 0 0
Ambient Temperature (C)
Figure 3. Typical Power Derating vs Output Current for 5Vi and 1.2Vo.
4
NCF010_6200810000_A03_025Jun07
 Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Murata Power Solutions
NCF0100150B (5Vin) Derating Curve
12
10
8
0 LFM
100 LFM
200 LFM
6
4
2
0
0 0 0 0 0 6 0 0 0
Ambient Temperature (C)
Figure 4. Typical Power Derating vs Output Current for 5Vi and 1.5Vo.
NCF0100180B (5Vin) Derating Curve
12
10
8
0 LFM
100 LFM
200 LFM
6
4
2
0
0 0 0 0 0 0 0 0 0
Ambient Temperature (C)
Figure 5. Typical Power Derating vs Output Current for 5Vi and 1.8Vo.
5
NCF010_6200810000_A03_025Jun07
  [ Pobierz całość w formacie PDF ]