48Vdc Input, 30Vdc@20A Output Full-brick
DC-DC Converter AGF600-48S30
Description
The AGF600-48S30 is a single output DC-DC
converter with standard full-brick outline and
pin configuration. It delivers up to 20A output
current with 30V output voltage. Above 94.0%
ultra-high efficiency and excellent thermal
performance make it an ideal choice to supply
power to power amplifier in telecom RF
application. Aluminium baseplate structure
makes it possible for the module to work under
-40°C ~ 85°C without air cooling.
Mechanical Features
Operational Features
Delivering up to 20A output current
Ultra-high efficiency 94.0% typ. at full load
Excellent thermal performance
Wide input range: 36V ~ 75V
No minimum load requirement
Fixed frequency operation
RoHS 5 compliant
Control Features
Remote control function
Remote output sense
Trim function: -50% ~ +10%
Industry standard full-brick pin-out outline
With aluminium baseplate
Pin length: 5.8mm
Safety & EMC
Meets safety standards UL 60950-1,
IEC/EN 60950-1 and GB4943
Approved by UL and TUV
Meets 2006/95/EEC and 93/68/EEC
directives which facilitates CE marking in
user’s end product
Meets conducted emission's requirements
of EN55022 Class A with external filter
Protection Features
Input under voltage protection
Output over current protection
Output over voltage protection
Over temperature protection
Document No: 31020982
August 5, 2009
Rev 1.2
2/15
AGF600-48S30 DC-DC Converter
Electrical Characteristics
Full operating ambient temperature range is -40°C to +85°C.
Specifications are subject to change without notice.
Parameter
Min.
Typ.
Max.
Unit
Notes & Conditions
Absolute max. ratings
Input voltage
Non-operating
100
V
100ms
Operating
80
V
Continuous
Operating temperature
-40
85
°C
Storage temperature
-55
125
°C
Input characteristics
Operating input voltage range
Input
under-voltage
lockout
36
48
75
V
Turn-on voltage
threshold
31
35
36
V
Turn-off voltage
threshold
30
33
35
V
Lockout voltage
hysteresis
1
1.5
3
V
20
A
36Vin, full load
Max. input current
No-load input current
0.2
0.3
A
48Vin
Standby Input current
0.02
0.1
A
Remote OFF
160
mA
Through 12µH inductor; Figure 16
Input reflected ripple current
Recommended input fuse
30
A
Fast blow external fuse
recommended Figure 11
Input filter component values (C\L)
15\0.55
µF\µH
Internal values
µF
Low ESR capacitor
recommended Figure 11
48Vin, full load
Recommended external input
capacitance
470
Output characteristics
Output voltage set point (standard
option)
Output voltage line regulation
Output voltage load regulation
Output voltage temperature
regulation
29.70
30
30.30
V
0.05
0.2
%
15
60
mV
0.2
0.5
%
60
150
mV
0.02
%/°C
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AGF600-48S30 DC-DC Converter
Parameter
Min.
Total output voltage range
29.10
Output voltage ripple and noise
Typ.
Max.
Unit
Notes & Conditions
30
30.90
V
Over sample, line, load,
temperature & life
80
250
mVpp
20MHz bandwidth; Figure 16
Operating output current range
0
20
A
Output DC current-limit inception
22
30
A
Output capacitance *
470
10000
µF
1000
Hiccup, see Figure 10
Dynamic characteristics
Dynamic
response
Turn-on
transient
Figure 4
25% ~ 50% ~ 25%
Io,max, 0.1A/µs
400
840
mV
Settling time
60
500
µs
50% ~ 75% ~ 50%
Io,max, 0.1A/µs
400
840
mV
Settling time
60
500
µs
Recovery to within 1% Vo,nom
Rise time
200
500
ms
Full load, Figure 6
Turn-on delay time
140
300
ms
5
%Vo
Output voltage
overshoot
Test condition: see Figure 11
Recovery to within 1% Vo,nom
Figure 5
Test condition: see Figure 11
Efficiency
100% load
94.0
%
Figure 1
50% load
94.5
%
Figure 1
* Out voltage can be start up when out external electrolytic Capacitor is 100uF/50V.
Electrical Characteristics (Continued)
Parameter
Min.
Typ.
Max.
Unit
Notes & Conditions
Isolation characteristics
Isolation voltage (1mA, 5s)
1500
V
Basic insulation, pollution degree 2,
input to output
1000
V
Basic insulation, pollution degree 2,
input to baseplate
500
V
Basic insulation, pollution degree 2,
output to baseplate
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AGF600-48S30 DC-DC Converter
Parameter
Min.
Typ.
Max.
Unit
Notes & Conditions
Feature characteristics
Switching frequency
260
Remote ON/OFF control
Output voltage trim range
290
1.5
15
Output voltage remote sense
range
Output over-voltage
protection
36
Over-temperature shutdown
105
Over-temperature hysteresis
5
110
320
kHz
5
mA
See Figure 12, Figure 13
33
V
See Trim Characteristics of Application
Note
0.5
V
40
V
125
°C
Over full temp range;
Hiccup
Auto recovery;
Test point: see Figure 19
°C
Reliability characteristics
Calculated MTBF (telcordia )
1.5
106h
Telcordia SR-332-2006; 80% load,
300LFM, 40°C Ta
Qualification Testing
Parameter
Unit (pcs)
Test condition
Halt test
4~5
Ta,min-10°C to Ta,max+10°C, 5°C step, Vin = min to max, 0 ~ 105% load
Vibration
3
Frequency range: 5Hz ~ 20Hz, 20Hz ~ 200Hz, A.S.D: 1.0m2/s3, -3db/oct,
axes of vibration: X/Y/Z;Time: 30min/axis
Mechanical shock
3
30g, 6ms, 3axes, 6directions, 3time/direction
Thermal shock
3
-40°C to 100°C, unit temperature 20cycles
Thermal cycling
3
-40°C to 85°C, temperature change rate: 1°C/min, cycles: 2cycles
Humidity
3
40°C, 95%RH, 48h
Solder ability
15
IPC J-STD-002C-2007
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AGF600-48S30 DC-DC Converter
Characteristic Curves
100
95
Efficiency (%)
90
85
80
75
Vin=36V
70
Vin=48V
65
Vin=75V
60
2
4
6
8
10
12
14
16
18
20
Output current (A)
Figure 1
Efficiency vs. output current, Ta=25°C, Tc=40°C, Vo=30V
Figure 2 Output ripple & noise (5µs/div, 50mV/div),
see Figure 16 for test configuration
Figure 3
Input reflected ripple current (2µs/div,
20mA/div), see Figure 16 for test configuration
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AGF600-48S30 DC-DC Converter
Figure 4 Dynamic response for 25% load step (25% ~
50% ~ 75%) and 0.1A/µs slew rate, see Figure 11 for
Figure 5 Dynamic response for 25% load step (50% ~
75% ~ 50%) and 0.1A/µs slew rate, see Figure 11 for
test configuration, CH1-output voltage (500mV/div);
test configuration. CH1-output voltage (500mV/div);
CH2-output current (5A/div)
CH2-output current (5A/div)
Figure 6
Output voltage startup by power on,
(5ms/div), see Figure 11 for test configuration,
CH2-input voltage (20V/div); CH1-output voltage
(10V/div)
Figure 7 Output voltage shut down by power off,
(5ms/div), see Figure 11 for test configuration,
CH2-input voltage (20V/div); CH1-output voltage
(10V/div)
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AGF600-48S30 DC-DC Converter
Figure 8 Output voltage startup by remote ON,
(20ms/div), see Figure 12 for test configuration, CH2remote ON (50V/div); CH1-output voltage (10V/div)
Figure 9 Output voltage shutdown by remote OFF,
(1ms/div), see Figure 12 for test configuration, CH2remote OFF (50V/div); CH1-output voltage (10V/div)
Vo
30V
26V
0V
0A
Figure 10
20A
24A
26.5A
Io
Over-current protection characteristics
Note: It’s only a sketch map of OCP action. Little alterations of the current value vs. voltage value are allowed.
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AGF600-48S30 DC-DC Converter
Application Note
Typical Application
AGF600
Fuse
EMI filter
In+
Vin+
Out+
Vdc
C1
In-
C2
R1
Out-
Vo+
S+
Trim
Vin-
C3
C4
Load
SVo-
+ON/OFF
-ON/OFF
Figure 11
Typical application
R1: 24kΩ (1/2W), current limiting resistor
C1: 470µF/100V electrolytic capacitor, P/N: UPW2A471MHD (Nichicon) or equivalent caps.
C2, C3: 1µF/100V X7R ceramic capacitor, P/N: C3225X7R2A105KT0L0U(TDK) or equivalent caps
C4: 1000µF/50V electrolytic capacitor, P/N: UPM1H102MHD (Nichicon) or equivalent caps
External fast-acting fuse with a rating of 30A should be used in the application. The recommended
fuse model is 0324030 or 314030 from LITTELFUSE.
Remote ON/OFF
A remote ON/OFF control circuit is provided which is isolated from the input side, as well as, the
output side. (Isolation withstand voltage: 1.5kVdc).
Connection of remote ON/OFF terminal is as follows. As shown in the figure below, output voltage
turns remote ON when current is made to flow through remote ON/OFF terminal. Remote ON/OFF
terminal can be controlled by opening or closing connections (with switch or relay).
Maximum source current for remote ON/OFF terminal is 5mA. Therefore, set current limiting
resistor value such that this maximum source current value is not exceeded. Also, the allowable
maximum reverse current flow is 5mA.
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AGF600-48S30 DC-DC Converter
Controlling the remote ON/OFF terminal from the input side
Connect current limiting resistor R1 is shown in the following figure.
Fuse
+Vin
R1
C1
-Vin
+ON/OFF
SW
1k
PC
1(ON/OFF)
Figure 12
-ON/OFF
Connection of remote ON/OFF control (A)
R1: Recommended resistor value: 24kΩ (1/2W)
Controlling the remote ON/OFF terminal from the output side
Connect the current limiting resistor R1 is shown in the following figure.
AUX
R1
SW
1(ON/OFF)
Figure 13
-S
+ON/OFF
1k
-ON/OFF
Connection of remote ON/OFF control (B)
R1: Recommended resistor value: 2kΩ (1/2W)
Note:
1. When wiring becomes long, connect a capacitor of about 0.1µF value between the +remote
ON/OFF terminal and –remote ON/OFF terminal at a nearest distance.
2. Current limiting resistor can also be connected to the –remote ON/OFF terminal side.
3. The remote ON/OFF control mode is shown in the following table.
Remote ON/OFF level
Output status
Open (