SRBL-C4A1A0R [BEL]
4-Phase Output, 0.6 â 3.3 VDC / 35 A per phase;
| 型号： | SRBL-C4A1A0R |
| 厂家： | 
BEL FUSE INC. |
| 描述： | 4-Phase Output, 0.6 â 3.3 VDC / 35 A per phase |
| 文件： | 总12页 (文件大小：478K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
The SRBL-C4A1A0 is a non-isolated Power Block. It contains the
input filtering, power train, and current monitoring of a typical DC/DC
converter minus the controller.
The Power Block can be used to provide 4-phase 0.6 VDC to 3.3 VDC
output voltage and 35 A maximum output current per phase.
The module is available in a pick-and-place surface mount package.
More than 95% efficiency can be achieved at a higher output voltage.
13.2 VDC Max Input
4-Phase Output, 0.6 – 3.3 VDC / 35 A per phase
Non-Isolated
Low Cost
High Efficiency
High Power Density
Class II, Category 2, Non-Isolated DC/DC Converter
(refer to IPC-9592B)
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Computers and Peripherals
Networking
Telecommunications
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2
SRBL-C4A1A0
MODEL
NUMBER
OUTPUT
VOLTAGE
INPUT
VOLTAGE
MAX. OUTPUT
POWER
MAX. OUTPUT
CURRENT
TYPICAL EFFICIENCY
SRBL-C4A1A0G
SRBL-C4A1A0R
90.3%
(11 Vin,1.0 V / 140 A out)
0.6 - 3.3 VDC
7 - 13.2 VDC
297 W
140 A
S
R
BL
-
C4
A
1A
0
x
Mounting
type
RoHS
status
Series
name
Output
current
Output
voltage
Input range
Customer Option
Package
G – Tray Package
Surface
Mount
Power
Block
RoHS
140 A
7 - 13.2 V
0.6 - 3.3 V
0
R – Tape and Reel
Package
PARAMETER
DESCRIPTION
MIN
TYP
MAX
15
UNITS
Continuous Input Voltage
-
-
-
-
-
-
V
V
7 V
9.5
3.6
85
PWM
-
V
Operating Temperature
-40
C
Temperature, Short-Term Operating
(96 hrs)
-40
-
90
C
Storage Temperature
-40
-
-
125
C
Altitude
-500
10000
Feet
Relative Humidity, Operating,
Non-Condensing
10
-
90
%
NOTE: All specifications are typical at 25C unless otherwise stated.
tech.support@psbel.com
3
SRBL-C4A1A0
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
Operating Input Voltage
7
-
13.2
V
Vin = 7.0 V, Vout = 3.3 V, Iout = 90 A,
fsw = 500 kHz, TAmb = 55C, 200 LFM
Input Current
-
-
46
A
Input Capacitance
Operating
26*10 µF/16 V/X7S on power block.
-
6.7
-
260
-
7.3
6.7
-
µF
V
7
-
Under-voltage lockout, rising
V
+7 V
Under-voltage lockout, falling
4.5
-
-
V
Hysteresis
0.5
-
-
V
Current (switching at 500 kHz)
-
200
-
mA
V
Operating
High
-
3.3
-
2.4
-
-
V
PWM
Low
-
0.8
2
V
Tri-state Voltage
1.2
-
V
Note: The Analog Device LTC7851 was used to verify this Power Blocks operation and functions. It was chosen due to its popularity. Other
controllers like the Renesas ISL69127 have also been shown to be compatible. When using this block with any chosen controller, special
attention should be paid to the turn on and off sequencing of +Vin, +7V, and the soft started PWM signals. The recommended timing is to
have +Vin followed by +7V followed by the PWM signals. This recommendation will ensure proper sequencing and inrush current control.
All specifications are typical at 25°C unless otherwise stated.
Asia-Pacific
Europe, Middle East
North America
+86 755 298 85888
+353 61 49 8941
+1 866 513 2839
© 2021 Bel Power Solutions & Protection
BCD.20075_AE
4
SRBL-C4A1A0
PARAMETER
DESCRIPTION
MIN
0
TYP
MAX
35
UNIT
A
Vo = 0.6 V to 1.0 V (per phase)
Vo = 0.6 V to 1.0 V (total)
Vo = 1.8 V (per phase)
Vo = 1.8 V (total)
-
0
-
140
32.5
130
25
A
0
-
A
0
-
A
Output Current Range
Vo = 2.5 V (per phase)
Vo = 2.5 V (total)
0
-
A
0
-
-
100
22.5
90
A
Vo = 3.3 V (per phase)
Vo = 3.3 V (total)
0
A
0
-
A
Output capacitors (internal).
0402 resistor per phase.
Output Capacitance
-
0
-
µF
Ω
Output-to-GND Resistor
-
402
160
-
-
inductance
Inductor
-
-
nH
A
Peak value for each phase.
Isat (125 ºC)
44
-
With current-sense common-mode voltage = 1.5 V,
0.25 A ≤ Iout ≤ 35 A per phase, current-sense gain is
(equivalent)
Current Sense Resistor
-
3.31
-
mΩ
Differential Voltage between +CS and -CS, Iout = 35 A
per phase, -CS need to connect to a fixed +1.2 V
reference voltage
Max Current-Sense
Differential Voltage
103
107.5
112
mV
Current-Sense Accuracy
(Ta = 25 ºC ~125 ºC)
Current-Sense Accuracy
(Ta = 25 ºC ~125 ºC)
Tamb = 25 ºC to 125 ºC, 25 A ≤ Iout ≤ 35 A per phase
Tamb = 25 ºC to 125 ºC, 0 A ≤ Iout ≤ 25 A per phase
-4
-1
-
-
4
1
%
A
NOTES: All specifications are typical at nominal input, 25°C unless otherwise stated.
PARAMETER
DESCRIPTION
MIN
TYP
90.3
93.3
94.8
95.5
-
MAX
UNIT
1.0 V / 140 A
1.8 V / 130 A
2.5 V / 100 A
3.3 V / 90 A
-
-
-
-
11 V input, switching at 500 kHz, with 200 LFM at 55 ºC,
thermal stable. Gate drive and controller losses are
included.
Efficiency
%
-
-
-
-
Output Voltage Range
0.6
-
3.3
-
V
g
Weight
MTBF
FIT
16
Calculated Per Bell Core SR-332 (Vin = 11 V,
Vout = 1.0 V, Io = 80% lomax, Ta = 40 ºC,
Airflow = 200 LFM, FIT = 109/MTBF)
-
45.28
22.0833
-
Mhrs
1.18 x 0.47 x 0.49
30.0 x 12.0 x 12.5
inch
mm
Dimensions (L × W × H)
NOTES: All specifications are typical at nominal input, 25°C unless otherwise stated.
tech.support@psbel.com
5
SRBL-C4A1A0
Efficiency vs. Output Current at Room Temperature
Efficiency vs. Output Current at Room Temperature
96
94
92
90
88
86
84
82
80
96
94
92
90
88
86
84
82
80
11V
11V
10
20
30
40
50
60
70
80
90
100 110 120 130 140
10
20
30
40
50
60
70
80
90
100
110
120
130
OUTPUT CURRENT (Amp)
OUTPUT CURRENT (Amp)
Figure 1. Vin = 11 V, Vo = 1.0 V
Figure 2. Vin = 11 V, Vo = 1.8 V
Efficiency vs. Output Current at Room Temperature
Efficiency vs. Output Current at Room Temperature
98
98
96
94
92
90
88
86
84
82
80
96
94
92
90
88
86
84
82
80
11V
11V
10
20
30
40
50
60
70
80
90
10
20
30
40
50
60
70
80
90
100
OUTPUT CURRENT (Amp)
OUTPUT CURRENT (Amp)
Figure 3. Vin = 11 V, Vo = 2.5 V
Figure 4. Vin = 11 V, Vo = 3.3 V
Asia-Pacific
Europe, Middle East
North America
+86 755 298 85888
+353 61 49 8941
+1 866 513 2839
© 2021 Bel Power Solutions & Protection
BCD.20075_AE
6
SRBL-C4A1A0
Thermal Considerations
New high power architectures require an accurate thermal design.
Design engineers have to optimize the module working conditions and ensure reliable operation.
Convection cooling is the common mode to cool down the module.
Heat transfer is dependent on a test setup and it is important to characterize the module in an environment
similar to existent electronic applications.
Reported thermal data reflects real operating conditions because the values are physically measured in a wind tunnel.
Thermal Test Setup
A module in electronic cards is typically located in a busy area without relevant space around it.
To simulate a real condition and avoid turbulence we add a cover with defined dimensions.
The distance has to be 12.7 mm (0.5 inch) from the top of the module and 12.7 mm (0.5 inch) on the left and right side of the
module.
The values reflect most of the real applications and it is a common procedure in the power module market.
125℃ MAX
Forced Airflow Direction
0.5
0.5
Figure 5. Thermal test setup
Figure 6. Airflow direction
tech.support@psbel.com
7
SRBL-C4A1A0
DERATING CURVE
DERATING CURVE
(54,130)
(58,140)
130
120
140
130
200LFM
(85,104.8)
200LFM
110
100
120
110
(85,92)
90
80
70
60
100
90
80
70
50
0
60
0
0
10 20 30 40 50 60 70 8085
0
10 20 30 40 50 60 70 8085
AMBIENT TEMPERATURE, Ta(°C)
Output Current vs. Local Ambient
Temperature and Air Velocity
AMBIENT TEMPERATURE, Ta(°C)
Output Current vs. Local Ambient
Temperature and Air Velocity
Figure 7. Vin = 11 V, Vout = 1 V
Figure 8. Vin = 11 V, Vout = 1.8 V
DERATING CURVE
DERATING CURVE
(70.7,90)
(72,100)
200LFM
(85,70)
200LFM
(85,82)
90
80
70
60
50
40
30
20
100
90
80
70
60
50
40
30
10
0
20
0
0
10 20 30 40 50 60 70 8085
0
10 20 30 40 50 60 70 8085
AMBIENT TEMPERATURE, Ta(°C)
Output Current vs. Local Ambient
Temperature and Air Velocity
AMBIENT TEMPERATURE, Ta(°C)
Output Current vs. Local Ambient
Temperature and Air Velocity
Figure 9. Vin = 11 V, Vout = 2.5 V
Figure 10. Vin = 11 V, Vout = 3.3 V
Asia-Pacific
Europe, Middle East
North America
+86 755 298 85888
+353 61 49 8941
+1 866 513 2839
© 2021 Bel Power Solutions & Protection
BCD.20075_AE
8
SRBL-C4A1A0
Figure 11. Block diagram
tech.support@psbel.com
9
SRBL-C4A1A0
The SRBL-C4A1Ax modules are designed to be compatible with reflow soldering process. The suggested Pb-free solder paste is
Sn/Ag/Cu(SAC). The recommended reflow profile using Sn/Ag/Cu solder is shown in the following. Recommended reflow peak
temperature is 245°C. while the part can withstand peak temperature of 260°C maximum for 10seconds. This profile should be
used only as a guideline. Many other factors influence the success of SMT reflow soldering. Since your production environment
may differ, please thoroughly review these guidelines with your process engineers.
Figure 12. Soldering information
The SRBL-C4A1Ax modules have a MSL rating of 3.
The SRBL-C4A1Ax modules are designed to be compatible with J-STD-033 Rev:A (Handling, Packing, Shipping and Use of
Moisture /Reflow Sensitive surface Mount devices). Moisture barrier bags (MBB) with desiccant are applied. The recommended
storage environment and handling procedure is detailed in J-STD-033.
This component has been designed, handled, and packaged ready for Pb-free reflow soldering. If the assembly shop follows J-
STD-033 guidelines, no pre-bake of this component is required before being reflowed to a PCB. Our packaging tray can only
withstand temperature of 70°C max.
Asia-Pacific
Europe, Middle East
North America
+86 755 298 85888
+353 61 49 8941
+1 866 513 2839
© 2021 Bel Power Solutions & Protection
BCD.20075_AE
10
SRBL-C4A1A0
1.181 [30.00]
1.114 [28.30]
0.972 [24.70]
0.831 [21.10]
0.689 [17.50]
0.547 [13.90]
0.406 [10.30]
0.031 [0.80]
(12X)
0.161 [4.10]
0.126 [3.20]
(9X)
TOP VIEW
SIDE VIEW
Pick & place plate
0.335 [8.50]
0.669 [17.00]
1.004 [25.50]
UNIT: INCH [mm]
BOTTOM VIEW
0.006 [0.15]
SIDE VIEW
Figure 13. Outline
NOTE:
1) All Pins: Material - Copper Alloy;
Finish – Tin plated
2) Un-dimensioned components are shown for visual reference only.
3) All dimensions in inch [mm]; Tolerances: x.xx +/-0.02 inch [0.51 mm], x.xxx +/-0.010 inch [0.25 mm].
tech.support@psbel.com
11
SRBL-C4A1A0
1
2
3
4
5
6
7
15
14
21 20 19 18 17 16
13 12 11 10
9
8
BOTTOM VIEW
Figure 14. Pins
PIN
1
FUNCTION
Vout1
GND
PIN
12
13
14
15
16
17
18
19
20
21
FUNCTION
+CS3
-CS3
2
3
Vout2
7V
GND
4
Vin
5
Vout3
GND
PWM2
+CS2
-CS2
6
7
Vout4
PWM4
+CS4
-CS4
8
PWM1
+CS1
-CS1
9
10
11
PWM3
1.181 [30.00]
1.114 [28.30]
0.972 [24.70]
0.831 [21.10]
0.689 [17.50]
0.547 [13.90]
0.406 [10.30]
0.161 [4.10]
0.055[1.40]
(12X)
15
14
21 20 19 18 17 16
13 12 11 10
9
8
CUSTOMER PCB
TOP VIEW
KEEP-OUT AREA
1
2
3
4
5
6
7
0.146 [3.70]
(9X)
0.335 [8.50]
0.669 [17.00]
1.004 [25.50]
Figure 15. Recommended pad layout
Asia-Pacific
Europe, Middle East
North America
+86 755 298 85888
+353 61 49 8941
+1 866 513 2839
© 2021 Bel Power Solutions & Protection
BCD.20075_AE
12
SRBL-C4A1A0
DATE
REVISION
CHANGES DETAIL
APPROVAL
2019-01-23
2019-04-17
2019-06-21
2019-09-24
AA
AB
AC
AD
First Release.
Z.Tang
Amend description of Output Capacitance.
Update mechanical outline.
Z.Tang
XF.Jiang
XF.Jiang
Update Max Current-Sense Differential Voltage Description.
Add object ID and module photo. Update mechanical outline and recommended pad
layout by adjusting the unit conversion.
2021-06-25
AE
XF.Jiang
For more information on these products consult: tech.support@psbel.com
NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
tech.support@psbel.com
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