XRSB-80T030 [BEL]
3.3 VDC / 25 A Output / 16th Brick Converter;
| 型号： | XRSB-80T030 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | 3.3 VDC / 25 A Output / 16th Brick Converter |
| 文件： | 总15页 (文件大小：1941K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
The xRSB-80T03x is isolated DC/DC converter that operates from a
nominal 48 VDC source. This secondary side control unit will provide
up to 82.5 W of output power from a nominal 48 VDC input. Features
include start-up into pre-biased load, remote on/off, over current
protection and under voltage lockout. This converter is provided in an
industry standard sixteenth brick package.
36 VDC – 75 VDC Input
•
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3.3 VDC / 25 A Output / 16th Brick Converter
Isolated
Input Under Voltage Lockout
Fixed Frequency (500 kHz)
Start-up into pre-biased load
High Efficiency
OCP/SCP
High Power Density
Over Temperature Protection
Low Cost
Remote On/Off
Output Voltage Trim
Positive/Negative Remote Sense
Basic Insulation
Approved to UL/CSA/IEC60950-1, 2nd +A2 version
Output overvoltage protection with autorecovery
Secondary side control for fast transient response and high reliability
Class II, Category 2, Non-Isolated DC/DC Converter
(refer to IPC-9592B)
2
xRSB-80T03x Series
MODEL
NUMBER
ACTIVE HIGH
MODEL
NUMBER
ACTIVE LOW
OUTPUT
VOLTAGE
INPUT
VOLTAGE
MAX. OUTPUT MAX. OUTPUT
TYPICAL
EFFICIENCY
CURRENT
POWER
3.3 VDC
36 VDC - 75 VDC
25 A
82.5 W
92.5%
xRSB-80T030
xRSB-80T03L
NOTE : 1.Add “G” or “R” suffix at the end of the model number to indicate packaging.
PART NUMBER EXPLANATION
x
R
SB
-
80
T
03
x
y
RoHS
Status
RoHS
6
Series
Name
1/16th
Brick
Output
Power
Input
Range
Output
Voltage
Mounting Type
Active Logic
Package Type
0 - Through hole mount
S – Surface mount
0 - Active high
L – Active low
G – Tray package
R – Tape and Reel package
82.5 W
36-75V
3.3V
PARAMETER
DESCRIPTION
MIN
-0.3
-
TYP
MAX
75
UNITS
Continuous non-operating Input Voltage
Input Transient Voltage
Remote On/Off
-
-
-
-
-
-
-
V
V
100 ms maximum
100
18
-0.3
1500
-40
-55
-
V
I/O Isolation Voltage
Ambient Temperature
Storage Temperature
Altitude
-
V
85
C
C
m
125
2000
NOTE: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device.
PARAMETER
DESCRIPTION
MIN
TYP
48
-
MAX
75
3
UNIT
V
Operating Input Voltage
36
Input Current (full load)
-
A
Input Current (no load)
-
40
2
70
5
mA
mA
mA
mA
A2s
V
Remote Off Input Current
Input Reflected Ripple Current (pk-pk)
Input Reflected Ripple Current (rms)
I2t Inrush Current Transient
Turn on Voltage Threshold
Turn off Voltage Threshold
-
With simulated source impedance of 10µH, 5Hz to
20MHz. Use a 100µF/100V electrolytic capacitor
with ESR=1 ohm max, at 200KHz@25°C.
-
20
5
30
10
1
-
-
-
-
-
1
V
32.5
-
35.5
CAUTION: This converter is not internally fused. An input line fuse must be used in application.
Recommend a fast-acting fuse with maximum rating of 5A on system board. Refer to the fuse manufacture’s datasheet for further
information.
NOTES: This converter has internal L-C (0.47µF-0.33 uH-2.35 µF) filter.
tech.support@psbel.com
3
xRSB-80T03x Series
PARAMETER
DESCRIPTION
MIN
TYP
3.300
±4
±4
±8
50
MAX
3.370
±9
UNIT
Output Voltage Set Point
Load Regulation
Vin=12 V, half load
3.230
V
-
-
-
-
-
mV
mV
mV
Line Regulation
±9
Regulation Over Temperature
Output Ripple and Noise (pk-pk)
Output Ripple and Noise (rms)
±15
80
0-20 MHz BW, with a 22 µF ceramic capacitor and a
150 µF tantalum capacitor at the output.
mV
mV
20
30
Output Ripple and Noise (pk-pk)
under worst case
-
-
120
Output Current Range
Output DC Current Limit
Short Circuit Surge Transient
Rise Time
0
26
-
-
30
-
25
34
A
A
.
3
A2s
ms
5
-
-
10
Enable form Vin
30
30
0
50
Turn on Time
ms
Enable form ON/OFF
-
50
Overshoot at Turn on
Output Capacitance
-
3
%
0
-
10000
µF
TRANSIENT RESPONSE
△V 50% ~ 75% of Max Load
Setting Time
-
-
-
-
80
50
80
50
150
100
150
100
mV
µS
di/dt=1A/µs, Vin=48VDC, Ta=25°C, with 270µF
Tantalum cap at output..
△V 75% ~ 50% of Max Load
Setting Time
mV
µS
NOTE: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
The efficiency is measured at Vin=48V, full load and
Ta=25°C.
Efficiency
90.5
92.5
-
%
Switching Frequency
Over Temperature Protection
Over Voltage Protection (Static)
FIT
-
-
-
500
125
4.2
-
-
-
kHz
C
V
This voltage is achieved by trimming up output slowly.
Calculated Per Telcordia SR-332, Issue 2 (Vin=48 V,
MTBF
5.7
M hrs
Vo=3.3 V, Io=25A, Ta = 25 ˚C, 100LFM, FIT=109/MTBF)
1.30 x 0.9 x 0.453
inch
mm
g
Dimensions (L × W × H)
33.02 x 22.86 x 11.50
15.5 -
Weight
-
ISOLATION CHARACTERISTICS
Input to Output
-
10M
-
-
-
1500
V
Isolation Resistance
Isolation Capacitance
-
-
Ohm
pF
1000
North America
Asia-Pacific
Europe, Middle East
+1 408 785 5200
+86 755 298 85888
+353 61 225 977
© 2017 Bel Power Solutions & Protection
Rev. C1
4
xRSB-80T03x Series
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
REMOTE ON/OFF
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
Current Sink
-0.3
2.4
-0.3
2.4
0
-
-
-
-
-
0.8
18
0.8
18
1
Active Low
Active High
Remote on/off pin open, unit off.
Remote on/off pin open, unit on.
V
V
mA
Recommended remote on/off circuit for active low
Vin+
On/off
Vin-
Vin+
On/off
Vin-
Control with open collector/drain circuit
Control with photocoupler circuit
Vin+
Vcc
On/off
Vin-
Control with logic circuit
Permanently on
tech.support@psbel.com
5
xRSB-80T03x Series
Recommended remote on/off circuit for active high
Control with open collector/drain circuit
Control with photocoupler circuit
Control with logic circuit
Permanently on
This module has remote sense compensation feature. It can minimizes the effects of resistance between moudle's output and
load in system layout and facilitates accurate voltage regulation at load terminals or other selected point.
1. The remote sense lines carries very little current and hence do not require a large cross-sectional area.
2. This module compensates for a maximum drop of 10% of the nominal output voltage.
3. If the unit is already trimmed up, the available remote sense compensation range should be correspondingly reduced. The
total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage.
4. When using remote sense compensation, all the resistance, parasitic inductance and capacitance of the system are
incorporated within the feedback loop of this module. The can make an effect on the module's compensation, affecting the
stability and dynamic response. A 0.1µF ceramic capacitor can be connected at the point of load to de-couple noise on the
sense wires.
5. Recommend the connection of remote sense compensation as below figure. There are a resistor RS+ (100 ohm) from Vo+
to Sense+ and a resistor RS- (51 ohm)) from Vo- to Sense- inside of this module.
6. If not using remote sense compensation, please connect sense directly to output at module's pin, that is, connect sense+ to
Vo+ and sense- to Vo- at module's pin, the shorter the better. see below figure.
North America
Asia-Pacific
Europe, Middle East
+1 408 785 5200
+86 755 298 85888
+353 61 225 977
© 2017 Bel Power Solutions & Protection
Rev. C1
6
xRSB-80T03x Series
Vo+
Sense+
Load
Sense-
Vo-
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected between the Trim
pin and Sense (-) pin. The Trim Up resistor should be connected between the Trim pin and the Sense (+). Only one of the
resistors should be used for any given application.
Minimum trim down voltage is 2.64V
Maximum trim up voltage is 3.63V.
The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage.
511
Rtrimdown =
-10.22[kW
]
delta
NOTE: Vo_req=Desired(trimmed) output voltage[V]
Output voltage Vo=3.3V
tech.support@psbel.com
7
xRSB-80T03x Series
Figure 1. 48 VDC input, 3.3 V output
NOTE: Ripple and noise at full load, 48VDC input, 3.3VDC/25A output and Ta=25 ˚ C, and with a 10µF ceramic cap at output.
Figure 2. Vo= 3.3 V 50%-75% Load Transients
Figure 3. Vout= 3.3 V 75%-50% Load Transients
NOTE: Transients Response at Vin=48V, di/dt=1A/µS, 270µF aluminum cap at output, Ta=25 ˚ C.
North America
+1 408 785 5200
Asia-Pacific
+86 755 298 85888
Europe, Middle East
+353 61 225 977
© 2017 Bel Power Solutions & Protection
Rev. C1
8
xRSB-80T03x Series
The output overvoltage protection consists of circuitry that monitors the voltage on the output terminals. If the voltage on the
output terminals exceeds the over voltage protection threshold, the module will shutdown into hiccup mode and restart once every
400mS. The module operates normally when the fault is cleared.
tech.support@psbel.com
9
xRSB-80T03x Series
RISE TIME
Figure 4. Vin =48, Vo=3.3V, Io=25A
STARTUP TIME
Figure 5. Startup from Vin
Ch1: Vo
Figure 6. Startup from on/off
Ch1: Vo
Ch3: Vin
Ch3: on/off
Test Condition: Vin =48,Vo=3.3V, Io=25A
Test Condition: Vin =48,Vo=3.3V, Io=25A
SHUTDOWN
Figure 7. Vin =48, Vo=3.3V, Io=25A
North America
Asia-Pacific
Europe, Middle East
+1 408 785 5200
+86 755 298 85888
+353 61 225 977
© 2017 Bel Power Solutions & Protection
Rev. C1
10
xRSB-80T03x Series
V1=32 V
V2=34 V
The SRSB-80T03x modules are designed to be compatible with a Paste-In-Hole assembly 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℃ while the part can withstand peak temperature of 260℃ 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.
The SRSB-80T03x modules have a MSL rating of 3.
The SRSB-80T05CG 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. However, if the J-STD-
033 guidelines are not followed by the assembler, Bel recommends that the modules should be pre-baked @ 120~125℃ for
a minimum of 4 hours (preferably 24 hours) before reflow soldering.
tech.support@psbel.com
11
xRSB-80T03x Series
0RSB-80T03x
PIN
1
FUNCTION
Vin (+)
2
Remote On/Off
Vin (-)
3
4
Vout-
5
Remote Sense (-)
Trim
6
7
Remote Sense (+)
Vout (+)
8
NOTE: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered using a peak solder
temperature of no more than 260 ºC for less than 5 seconds.
NOTE: 1) All Pins: Material - Copper Alloy;
Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate
2) Undimensioned components are shown for visual reference only.
3) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm).
North America
Asia-Pacific
Europe, Middle East
+1 408 785 5200
+86 755 298 85888
+353 61 225 977
© 2017 Bel Power Solutions & Protection
Rev. C1
12
xRSB-80T03x Series
SRSB-80T03x
PIN
1
FUNCTION
Vin (+)
2
Remote On/Off
Vin (-)
3
4
Vout-
5
Remote Sense (-)
Trim
6
7
Remote Sense (+)
Vout (+)
8
NOTE: 1) All Pins: Material - Copper Alloy;
Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate
2) Undimensioned components are shown for visual reference only.
3) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. x.xxx +/-0.010 in. unless otherwise stated.
tech.support@psbel.com
13
xRSB-80T03x Series
xRSB-80T03xG
6
PS
North America
Asia-Pacific
Europe, Middle East
+1 408 785 5200
+86 755 298 85888
+353 61 225 977
© 2017 Bel Power Solutions & Protection
Rev. C1
14
xRSB-80T03x Series
SRSB-80T03xR
250
375
3.625
tech.support@psbel.com
15
xRSB-80T03x Series
22.
DATE
REVISION
CHANGES DETAIL
APPROVAL
JZ Wang
J Yan
2012-6-1
2014-9-26
2017-08-30
A
B
C
First release
Update output specs, general specs
Update TD, add soldering information and package drawing
J Yan
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.
North America
Asia-Pacific
Europe, Middle East
+1 408 785 5200
+86 755 298 85888
+353 61 225 977
© 2017 Bel Power Solutions & Protection
Rev. C1
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