NQ40X40EGC08 Datasheet, PDF (5/9 Pages) SynQor Worldwide Headquarters – Eighth-brick DC-DC Converter

Technical Specification
100
95
90
85
80
75
36Vin 24Vout
24Vin 12Vout
70
36Vin 12Vout
24Vin 36Vout
65
12Vin 24Vout
12Vin 36Vout
60
0
1
2
3
4
5
6
7
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
nominal input voltage at 25 °C.
7.5
6.0
4.5
3.0
Tb≤100C; Vout=12 V
1.5
Tb≤100C; Vout=24 V
Tb≤100C; Vout=36 V
0.0
5
10
15
20
25
30
35
40
Input Voltage(V)
Figure 3: Maximum output power derating curve with a controlled
baseplate temperature of 80ºC and 100ºC.
Input: 9 - 40 V
Outputs: 0 - 40 V
Current: 7.5 A
Package: Eighth-brick
8
7
6
5
4
3
36Vin 24Vout
24Vin 12Vout
2
36Vin 12Vout
24Vin 36Vout
1
12Vin 24Vout
12Vin 36Vout
0
0
1
2
3
4
5
6
7
Load Current (A)
Figure 2: Power dissipation at nominal output voltage vs. load current
for nominal input voltage at 25 °C.
1 µH ^{See Fig. 5}
source
impedance
i_S
i_{C Vin}
Dc-dc
Converter
See Fig. 6
V_out
V_SOURCE
C*
* See values for recommended external input capacitance.
Inductor optional as needed.
100 µF
100mW ESR
tantalum
capacitor
Figure 4: Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 5), and Output Voltage Ripple (Figure 6).
36 Vout
24 Vout
12 Vout
36 Vout
24 Vout
12 Vout
Figure 5: Input Terminal Ripple Current at 24 V input and rated load
current (500 mA/div). Bandwidth: 20 MHz. See Figure 6.
Figure 6: Output Voltage Ripple at 24 V input and rated load current
(50 mV/div). Zero load capacitance. Bandwidth: 20 MHz. See Figure 6.
Product # NQ40x40EGC08
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Doc.# 005-NG4040W Rev. C 03/06/09
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