Note3: no suffix for standard part without Trim or CTRL
add suffix “P” for CTRL function with positive logic (1=ON, 0=OFF) and trim pin
add suffix “N” for CTRL function with negative logic (0=ON, 1=OFF) and trim pin
Note4: add suffix -HC for premounted Heat-sink and clips
www.recom-power.com
REV.: 2/2017
PD-1
RP20-A
DC/DC Converter
Specifications
measured at Ta = 25°C, nominal input voltage, full load otherwise noted
BASIC CHARACTERISTICS
Parameter
Input Voltage Range
Series
Condition
nom. Vin = 12V
nom. Vin = 24V
nom. Vin = 48V
Vin = 12V
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
Min.
9VDC
18VDC
36VDc
Typ.
12VDC
24VDC
48VDC
8VDC
Max.
18VDC
36VDC
75VDC
9VDC
18VDC
Under Voltage Lockout (UVLO)
Vin = 24V
Vin = 48V
16VDC
36VDC
33VDC
Pi-Type
30mAp-p
25VDC
50VDC
100VDC
30ms
30ms
248kHz
297kHz
0%
275kHz
330kHz
303kHz
363kHz
Input Filter
Input Reflected Ripple
(5)
Input Surge Voltage
Start-up time
Operating Frequency Range
Minimum Load
measured by 20Mhz bandwidth
Single
with a 1µF M/C X7R and a 10µF T/C
Ripple and Noise
measured by 20Mhz bandwidth
with a 1µF M/C X7R and a 10µF T/C Dual
for each output
Positive Logic
Remote ON/OFF
(6)
Negative Logic
Input current of Remote pin (CTRL)
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC OFF
DC-DC ON
-0.5mA
nominal Vin and full load
Vin =12V, 100ms max.
Vin = 24V, 100ms max.
Vin = 48V, 100ms max.
Power up
Remote ON/OFF
3.3Vout, 5Vout
Others
75mVp-p
100mVp-p
Open or 3.0V < Vr < 15V
Short or 0V < Vr < 1.2V
Short or 0V < Vr < 1.2V
Open or 3.0V < Vr < 15V
2mA
1.0mA
Notes:
Note5: Simulated source impedance of 12µH. 12µH inductor in series with +Vin.
Note6: The ON/OFF control function can be positive or negative logic. The pin voltage is referenced to -Vin pin.
If no suffix is specified, the control pin will be omitted.
RP20-1205SA
95
90
85
Efficiency vs. Output Current
95
90
Efficiency vs. Input Voltage
Efficiency [%]
80
75
70
65
60
55
50
45
40
10
20
30
40
50
60
70
80
9Vin
12Vin
18Vin
90
100
Efficiency [%]
85
80
75
70
65
9
10
11
12
13
14
15
16
17
18
Output Current [%]
continued on next page
PD-2
REV.: 2/2017
Input Voltage [VDC]
www.recom-power.com
RP20-A
DC/DC Converter
Specifications
measured at Ta = 25°C, nominal input voltage, full load otherwise noted
RP20-2405SA
95
90
85
90
80
75
70
65
60
55
50
45
40
10
20
30
40
50
60
70
80
18Vin
24Vin
36Vin
90
100
Series
Efficiency vs. Input Voltage
95
Efficiency vs. Output Current
Efficiency [%]
Efficiency [%]
85
80
75
70
65
18
20
22
24
26
28
30
32
34
36
Output Current [%]
Input Voltage [VDC]
RP20-4805SA
Efficiency vs. Output Current
95
90
85
90
80
75
70
65
60
55
50
45
40
10
20
30
40
50
60
70
80
36Vin
48Vin
75Vin
90
100
95
Efficiency vs. Input Voltage
Efficiency [%]
Efficiency [%]
85
80
75
70
65
36
40
44
48
52
56
60
64
68
72
75
Output Current [%]
Input Voltage [VDC]
REGULATIONS
Parameter
Output Voltage Accuracy
Output Trimming
Line Voltage Regulation
Single
Single
Dual
0% to 100% load
Load Voltage Regulation
10% load to 90% load
Cross Regulation
Transient Response recovery time
Single
Dual
Single
Dual
Condition
Value
±1%
±10%
±0.2%
±0.5%
±0.2%
±1.0%
±0.1%
±0.8%
±5%
250µs
asymmetrical 25%<>100% load
25% load step change
continued on next page
www.recom-power.com
REV.: 2/2017
PD-3
RP20-A
DC/DC Converter
Specifications
measured at Ta = 25°C, nominal input voltage, full load otherwise noted
External Output Trimming
Output Voltage Trimming
Some single/dual output Powerline converters offer the feature of trimming the output voltage over a certain range around the nominal value by using
external trim resistors. No general equation can be given for calculating the trim resistors, but the following trimtables give typical values for chosing
these trimming resistors. If voltages between the given trim points are required, extrapolate between the two nearest given values to work out the
resistor required or use a variable resistor to set the output voltage. Output can be externally trimmed by using the method shown below.
Series
Trim up
6
RU
5
4
4
Trim down
RD
RP20-xx3.3S
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
3.333
57.93
1
3.267
69.47
2
3.366
26.16
2
3.234
31.23
3
3.399
15.58
3
3.201
18.49
4
3.432
10.28
4
3.168
12.12
5
3.465
7.11
5
3.135
8.29
6
3.498
4.99
6
3.102
5.74
7
3.531
3.48
7
3.069
3.92
8
3.564
2.34
8
3.036
2.56
9
3.597
1.46
9
3.003
1.50
10
3.63
0.75
10
2.97
0.65
%
Volts
kOhms
%
Volts
kOhms
RP20-xx05S
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
5.05
36.57
1
4.95
45.53
2
5.10
16.58
2
4.90
20.61
3
5.15
9.92
3
4.85
12.31
4
5.20
6.58
4
4.80
8.15
5
5.25
4.59
5
4.75
5.66
6
5.30
3.25
6
4.70
4.00
7
5.35
2.30
7
4.65
2.81
8
5.4
1.59
8
4.60
1.92
9
5.45
1.03
9
4.55
1.23
10
5.50
0.59
10
4.50
0.68
%
Volts
kOhms
%
Volts
kOhms
RP20-xx12S
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
12.12
367.91
1
11.88
460.99
2
12.24
165.95
2
11.76
207.95
3
12.36
98.64
3
11.64
123.60
4
12.48
64.98
4
11.52
81.42
5
12.60
44.78
5
11.40
56.12
6
12.72
31.32
6
11.28
39.25
7
12.84
21.70
7
11.16
27.20
8
12.96
14.49
8
11.04
18.16
9
13.08
8.88
9
10.92
11.13
10
13.20
4.39
10
10.8
5.51
%
Volts
kOhms
%
Volts
kOhms
RP20-xx15S
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
15.15
404.18
1
14.85
499.82
2
15.3
180.59
2
14.70
223.41
3
15.45
106.06
3
14.55
131.27
4
15.60
68.80
4
14.40
85.20
5
15.75
46.44
5
14.25
57.56
6
15.90
31.53
6
14.10
39.14
7
16.05
20.88
7
13.95
25.97
8
16.20
12.90
8
13.80
16.10
9
16.35
6.69
9
13.65
8.42
10
16.50
1.72
10
13.50
2.282
%
Volts
kOhms
%
Volts
kOhms
continued on next page
PD-4
REV.: 2/2017
www.recom-power.com
RP20-A
DC/DC Converter
Specifications
measured at Ta = 25°C, nominal input voltage, full load otherwise noted
Dual Output Voltage Trim Tables
Series
RP20-xx12D
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
24.24
218.21
1
23.76
273.44
2
24.48
98.10
2
23.52
123.02
3
24.72
58.07
3
23.28
72.87
4
24.96
38.05
4
23.04
47.80
5
25.20
26.04
5
22.80
32.76
6
25.44
18.03
6
22.56
22.73
7
25.68
12.32
7
22.32
15.57
8
25.92
8.03
8
22.08
10.20
9
26.16
4.69
9
21.84
6.02
10
26.40
2.02
10
21.6
2.67
%
Volts
kOhms
%
Volts
kOhms
RP20-xx15D
Trim up
Vout =
R
U
=
Trim down
Vout =
R
D
=
1
30.30
268.29
1
29.70
337.71
2
30.60
120.64
2
29.40
152.02
3
30.90
71.43
3
29.10
90.13
4
31.20
46.82
4
28.80
59.18
5
31.50
32.06
5
28.50
40.61
6
31.80
22.21
6
28.20
28.23
7
32.10
15.10
7
27.90
19.39
8
32.40
9.91
8
27.60
12.76
9
32.70
5.81
9
27.30
7.60
10
33.00
2.53
10
27.00
3.47
%
Volts
kOhms
%
Volts
kOhms
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
3.3Vout
5Vout
Zener Diode Clamp
12Vout
15Vout
% Iout rated; Hiccup mode
I/P to O/P
I/P to O/P to case
500 VDC
Condition
Value
continuous, automatic recovery
3.7VDC - 5.4VDC
5.6VDC - 7.0VDC
13.5VDC - 19.6VDC
16.8VDC - 20.5VDC
150% typ.
1.6kVDC/1minute
1.0kVDC/1 minute
1GΩ min.
1500pF max.
Over Voltage Protection (OVP)
Over Load Protection (OLP)
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Notes:
Note7: This power module is not internally fused. An input line fuse must always be used.
编译自semiengineering 业界越来越关注人工智能的功耗问题，但这个问题并没有简单的解决方案。这需要深入了解应用、半导体和系统层面的软件和硬件架构，以及所有这些的设计和实现方式。每个环节都会影响总功耗和提供的效用。这是最终必须做出的权衡。 但首先，必须解决效用问题。电力是否被浪费了？“我们将电力用于有价值的用途，”Ansys（现为新思科技旗下公司）产品营销总监 Marc Swi...[详细]
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