SLAN-06D2AL [BEL]
3 Vdc â 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs;
| 型号： | SLAN-06D2AL |
| 厂家： | 
BEL FUSE INC. |
| 描述： | 3 Vdc â 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs |
| 文件： | 总25页 (文件大小：1996K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
SLAN-06D2Ax
Features
RoHS Compliant
Rev.B
Non-Isolated
Cost efficient open frame design
Ability to sink and source current
DOSA based
Power Good signal
Remote On/Off
Overtemperature protection
Fixed switching frequency
Compliant to IPC-9592 (September 2008), Category 2, Class II
Compliant to RoHS EU Directive 2002/95/EC
Compatible in a Pb-free or SnPb reflow environment
Output voltage programmable from 0.6Vdc to 5.5Vdc via external resistor.
Tunable LoopTM to optimize dynamic output voltage response
Output overcurrent protection (non-latching)
Wide operating temperature range [-40°C to 85°C]
Wide Input voltage range (3Vdc-14.4Vdc).Ref.to Figure 41 for corresponding output range.
UL60950-1 Recognized (UL/cUL)
Small size:12.2mm×12.2mm×7.25mm(0.48 in×0.48 in×0.29 in)
ISO 9001 and ISO 14001 certified manufacturing facilities
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Industrial equipment
Description
The SLAN-06D2Ax power modules are non-isolated dc-dc converters that can deliver up to 6A of output current.
These modules operate over a wide range of input voltage (VIN = 3Vdc-14.4Vdc) and provide a precisely
regulated output voltage from 0.6Vdc to 5.5Vdc, programmable via an external resistor. Features include remote
On/Off, adjustable output voltage, over current and over temperature protection. The Tunable LoopTM feature
allows the user to optimize the dynamic response of the converter to match the load with reduced amount of
output capacitance leading to savings on cost and PWB area.
Part Selection
Max. Output Max. Output
Typical
Efficiency
Model Number Model Number
Output Voltage
Input Voltage
Current
Power
Active High
Active Low
0.6 - 5.5 Vdc
3 - 14.4 Vdc
6 A
33W
94%
SLAN-06D2A0
SLAN-06D2AL
Notes: 1. Add “R” suffix at the end of the model number to indicate tape and reel packaging (Standard).
2. Add “G” suffix at the end of the model number to indicate tray packaging (Option).
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
1
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Ordering Part Number
S LAN – 06 D 2A 0 x
Bel Power Inc., a subsidiary of Bel Fuse Inc.
1
2
3
4
5
6
7
1---Surface mount
2---Series code
3---Output current (6A)
5---Without sequencing
6---Enable, active high, change “0” to “L” means active low
7---Package
4---Wide input voltage range (3-14.4V)
Absolute Maximum Ratings
Unit
V
Parameter
Continuous Input Voltage
Operating Ambient Temperature
Storage Temperature
Altitude
Min
Max
15
Notes
-0.3
-40
-55
-
85
see Thermal Considerations section
C
C
m
125
2000
Note: Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute
stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in
the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect
the device reliability.
Input Specifications
Parameter
Min
Typ
Max
Unit
Notes
Operating Input Voltage
31
-
14.4
V
Input Current (full load)
Input Current (no load)
Input Stand-by Current
-
-
-
-
-
5.6
A
VIN=3V to 14.4V, IO= IOmax
VO,set = 0.6 Vdc
25
-
-
-
mA
mA
mA
VIN = 12Vdc, IO = 0,
module enabled
55
VO,set = 5 Vdc
0.65
VIN = 12V, module disabled
5Hz to 20MHz, 1μH source impedance; VIN
=0 to 14V, IO= IOmax ; See Test
Configurations
Input Reflected Ripple Current
(pk-pk)
-
23
-
mAp-p
I2t Inrush Current Transient
-
-
-
1
-
A2s
dB
Input Ripple Rejection (120Hz)
-60
Note: 1 Module needs 3.3Vin for operation at full load, -40C.
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Output Specifications
Parameter
Min
Typ
Max
Unit
Notes
with 0.1% tolerance for external resistor used to
set output voltage
Output Voltage Set Point
-1.0
-
+1.0
%Vo,set
Over all operating input voltage, resistive load,
and temperature conditions until end of life
Output Voltage
-3.0
-
+3.0
%Vo,set
1. selected by an external resistor.
2. Some output voltages may not be possible
depending on the input voltage – see Feature
Descriptions Section.
Adjustment Range
0.6
-
-
-
5.5
0.5
V
V
Remote Sense Range
Load Regulation
VO ≥ 2.5V
VO < 2.5V
-
-
-
-
10
10
mV
mV
IO=IO, min to IO, max
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Specifications (continued)
Parameter
Min
Typ
Max
Unit
Notes
Line Regulation
VO ≥ 2.5V
VO < 2.5V
-
-
-
-
0.4
5
%Vo,set
mV
VIN=VIN, min to VIN, max
Tref=TA, min to TA, max
Temperature Regulation
Ripple and Noise (pk-pk)
Ripple and Noise (rms)
-
-
-
-
0.4
100
38
%Vo,set
mV
50
20
5Hz to 20MHz BW, VIN=VIN, nom and IO=IO, min to
IO, max Co = 0.1μF // 22 μF ceramic capacitors)
mV
Output Short-Circuit Current
-
0.75
-
A
Vo≤250mV, Hiccup Mode
Output Capacitance1
ESR≥ 1 mΩ
Without the Tunable LoopTM
With the Tunable LoopTM
With the Tunable LoopTM
22
1000
3000
10
10
10
-
-
-
μF
μF
μF
ESR≥0.15 mΩ
ESR≥ 10 mΩ
Output Current
0
-
-
6
-
A
In either sink or source mode
Output Current Limit
Inception
1. Hiccup Mode
2.Current limit does not operate in sink mode
% Io,max
200
Vin = Vin,min to Vin, max,IO = IO, min to IO, max
TA=25°C
,
Output voltage overshoot
-
-
-
3.0
-
%Vo, set
.
Case 1: On/Off input is enabled and then input power
is applied(delay from instant at which VIN = VIN,
6
msec
Turn-On Delay Times
min until Vo = 10% of Vo, set
)
(VIN=VIN, nom, IO=IO, max , VO to
within ±1% of steady state)
Case 2: Input power is applied for at least one second
and then the On/Off input is enabled(delay from
instant at which Von/Off is enabled until Vo = 10% of
Vo, set)
-
-
5
2
-
-
msec
msec
Time for Vo to rise from
Output voltage Rise time
10% of Vo, set to 90% of Vo, set
.
Notes: 1 External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well
as getting the best transient response. See the Tunable LoopTM section for details.
General Specifications
Parameter
Min
Typ
Max
Unit
Notes
Efficiency
Vo=0.6V
Vo=1.2V
Vo=1.8V
Vo=2.5V
Vo=3.3V
Vo=5.0V
-
-
-
-
-
-
79.0
86.0
89.0
91.0
93.0
94.0
-
-
-
-
-
-
%
%
%
%
%
%
Vin= 12Vdc, TA=25°C
Io=Io, max , Vo= Vo,set
Switching Frequency
-
600
-
kHz
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
-
-
-
-
3
0.3
3.3
-
-
V
V
V
Over Temperature Protection
PGOOD (Power Good)
Overvoltage threshold for PGOOD
-
145
-
C
-
-
-
%VO, set
%VO, set
Signal Interface Open Drain,
Vsupply 5Vdc
112.5
87.5
30
-
-
-
Undervoltage threshold for PGOOD
Pulldown resistance of PGOOD pin
Weight
-
1.2
-
g
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
3
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
General Specifications(continued)
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Parameter
Min
Typ
Max
Unit
Notes
Calculated MTBF (IO=0.8IO, max
TA=40°C) Telecordia Issue 2
Method 1 Case 3
,
MTBF
18,595,797
hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
0.48 x 0.48 x 0.29
12.2 x 12.2 x 7.25
-
Note: Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and
temperature conditions.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
4
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Efficiency Data
Bel Power Inc., a subsidiary of Bel Fuse Inc.
95
90
85
90
85
80
75
70
65
60
55
50
Vin=3.3V
80
75
70
65
60
55
Vin=12V
Vin=6V
Vin=14.4V
Vin=8V
Vin=3.3V
0
1
2
3
4
5
6
0
1
2
3
4
5
6
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Vo=0.6V
Vo=1.2V
95
90
85
80
75
70
65
100
95
90
85
Vin=3.3V
Vin=14.4V
Vin=14.4V
80
75
70
65
Vin=12V
Vin=12V
Vin=4.5V
60
0
1
2
3
4
5
6
0
1
2
3
4
5
6
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Vo=1.8V
Vo=2.5V
100
95
90
85
80
75
70
65
100
95
90
85
80
75
70
65
Vin=8V
Vin=5V
Vin=14.4V
Vin=14.4V
Vin=12V
Vin=12V
0
1
2
3
4
5
6
0
1
2
3
4
5
6
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Vo=3.3V
Vo=5.0V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
5
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Thermal Derating Curves
Bel Power Inc., a subsidiary of Bel Fuse Inc.
6.5
6.0
5.5
5.0
4.5
6.5
6.0
NC
NC
5.5
0.5m/s
(100LFM)
Standard
Part (85 C)
Standard Part
(85°C)
0.5m/s
(100LFM)
Ruggedized (D)
Ruggedized (D)
5.0
Part (105°C)
Part (105°C)
4.5
55
65
75
85
95
105
55
65
75
85
95
105
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Vo=0.6V
Vo=1.2V
6.5
6.0
5.5
5.0
4.5
6.5
6.0
5.5
5.0
4.5
1.0m/s
(200LF M)
N C
NC
0.5m/ s
(100LFM)
Standard
Stan dard Part
0.5m/s
(100LFM)
Part (85° C)
(85°C )
Ruggedized (D)
Ruggedized (D)
Part (105°C)
Part (105° C)
55
65
75
85
95
105
55
65
75
85
95
105
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Vo=1.8V
Vo=2.5V
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
6.5
6.0
5.5
5.0
4.5
4.0
2m/s
(400LFM)
1.5m/s
(300LFM)
NC
NC
0.5m/s
0.5m/s
(100LFM)
(100LFM)
Standard
Standard
1m/s
(200LFM)
Part (85° C)
Par t(85°C)
1m/s
Rugg edized (D)
(200LFM)
1.5m/s
(300LFM)
Ruggedized (D)
Part (105°C )
Part (105° C)
55
65
75
85
95
105
45
55
65
75
85
95
105
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Vo=3.3V
Vo=5.0V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
6
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Output ripple and Noise Waveforms
Bel Power Inc., a subsidiary of Bel Fuse Inc.
TIME, t (1s/div)
TIME, t (1s/div)
Vo=0.6V, Io = Io,max , Vin=8V
Vo=1.2V, Io = Io,max, Vin=12V
TIME, t (1s/div)
TIME, t (1s/div)
Vo=1.8V, Io = Io,max, Vin=12V
Vo=2.5V, Io = Io,max, Vin=12V
TIME, t (1s/div)
TIME, t (1s/div)
Vo=3.3V, Io = Io,max, Vin=12V
Vo=5.0V, Io = Io,max, Vin=12V
Note: CO=10μF ceramic
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
7
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Transient Response Waveforms
Bel Power Inc., a subsidiary of Bel Fuse Inc.
TIME, t (20s /div)
TIME, t (20s /div)
Transient Response to Dynamic Load Change from
50% to 100% at 8Vin, Cout-1x47uF+4x330uF, CTune-
33nF, RTune-178 . Vo=0.6V
Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout-1x47uF+3x330uF, CTune-
12nF & RTune-178. Vo=1.2V
TIME, t (20s /div)
TIME, t (20s /div)
Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout-1x47uF+1x330uF, CTune-
4700pF & RTune-178. Vo=1.8V
Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout-3x47uF, CTune-3300pF &
RTune-178. Vo=2.5V
TIME, t (20s /div)
TIME, t (20s /div)
Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout-3x47uF, CTune-3900pf &
RTune- 178. Vo=3.3V
Transient Response to Dynamic Load Change from
50% to 100% at 12Vin, Cout-2x47uF, CTune-2200pF &
RTune-261. Vo=5V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
8
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Startup Time
Bel Power Inc., a subsidiary of Bel Fuse Inc.
TIME, t (2 ms/div)
TIME, t (2 ms/div)
Start-up Using On/Off Voltage (Io = Io,max), Vo=0.6V
Start-up Using On/Off Voltage (Io = Io,max), Vo=1.2V
TIME, t (2 ms/div)
TIME, t (2 ms/div)
Start-up Using On/Off Voltage (Io = Io,max), Vo=1.8V
Start-up Using On/Off Voltage (Io = Io,max), Vo=2.5V
TIME, t (2 ms/div)
TIME, t (2 ms/div)
Start-up Using On/Off Voltage (Io = Io,max), Vo=3.3V
Start-up Using On/Off Voltage (Io = Io,max), Vo=5.0V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
9
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Startup Time (continued)
Bel Power Inc., a subsidiary of Bel Fuse Inc.
TIME, t (2 ms/div)
TIME, t (2 ms/div)
Start-up Using Input Voltage (VIN = 8V, Io = Io,max ),
Vo=0.60V
Start-up Using Input Voltage (VIN = 12V, Io = Io,max ),
Vo=1.2V
TIME, t (2 ms/div)
TIME, t( 2 ms/div)
Start-up Using Input Voltage (VIN = 12V, Io = Io,max ),
Vo=1.8V
Start-up Using Input Voltage (VIN = 12V, Io = Io,max ),
Vo=2.5V
TIME, t (2 ms/div)
TIME, t (2 ms/div)
Start-up Using Input Voltage (VIN = 12V, Io = Io,max ),
Vo=3.3V
Start-up Using Input Voltage (VIN = 12V, Io = Io,max ),
Vo=5.0V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
10
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Design Considerations
Input Filtering
The SLAN-06D2Ax module should be connected to a low ac-impedance source. A highly inductive source can
affect the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the
module, to minimize input ripple voltage and ensure module stability.
To minimize input voltage ripple, ceramic capacitors are recommended at the input of the module. Figure 37
shows the input ripple voltage for various output voltages at 6A of load current with 1x22 µF or 2x22µF ceramic
capacitors and an input of 12V.
Figure 37
Note: Input ripple voltage for various output voltages with 1x22 µF or 2x22 µF ceramic capacitors at the input
(6A load). Input voltage is 12V.
Output Filtering
These modules are designed for low output ripple voltage and will meet the maximum output ripple specification
with 0.1 µF ceramic and 10 µF ceramic capacitors at the output of the module. However, additional output
filtering may be required by the system designer for a number of reasons. First, there may be a need to further
reduce the output ripple and noise of the module. Second, the dynamic response characteristics may need to be
customized to a particular load step change
To reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at
the output can be used. Low ESR polymer and ceramic capacitors are recommended to improve the dynamic
response of the module. Figure 38 provides output ripple information for different external capacitance values at
various Vo and a full load current of 6A. For stable operation of the module, limit the capacitance to less than the
maximum output capacitance as specified in the electrical specification table. Optimal performance of the
module can be achieved by using the Tunable LoopTM feature described later in this data sheet
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
11
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Filtering (continued)
Figure 38
Note: Output ripple voltage for various output voltages with external 1x10µF, 1x22µF, 1x47µF and 2x47µF
ceramic capacitors at the output (6A load). Input voltage is 12V.
.
Safety Considerations
For safety agency approval the power module must be installed in compliance with the spacing and separation
requirements of the end-use safety agency standards, i.e., UL 60950-1 2nd, CSA C22.2 No. 60950-1-07, DIN EN
60950-1:2006 + A11 (VDE0805 Teil 1 + A11):2009-11; EN 60950-1:2006 + A11:2009-03.
For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input
must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV.
The input to these units is to be provided with a fast-acting fuse with a maximum rating of 10A, 125Vdc in the
positive input lead.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
12
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Feature Descriptions
Remote On/Off
Parameter
Min
Typ
Max
Unit
Notes
Signal Low (Unit On)
-0.2
-
0.4
V
Active Low
The remote on/off pin open, Unit on.
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
3.0
-0.2
3.0
-
-
-
Vin,max
0.3
V
V
V
Active High
The remote on/off pin open, Unit on.
Vin,max
The SLAN-06D2Ax power modules feature an On/Off pin for remote On/Off operation. Two On/Off logic options
are available. In the Positive Logic On/Off option, (device code suffix “0” – see Ordering Information), the module
turns ON during a logic High on the On/Off pin and turns OFF during a logic Low. With the Negative Logic
On/Off option, (device code suffix “L” – see Ordering Information), the module turns OFF during logic High and
ON during logic Low. The On/Off signal should be always referenced to ground. For either On/Off logic option,
leaving the On/Off pin disconnected will turn the module ON when input voltage is present.
For positive logic modules, the circuit configuration for using the On/Off pin is shown in Figure 39. When the
external transistor Q1 is in the OFF state, the internal PWM Enable signal is pulled high through an internal
resistor and the external pullup resistor and the module is ON. When transistor Q1 is turned ON, the On/Off pin is
pulled low and the module is OFF. A suggested value for Rpullup is 20kΩ.
Figure 39
MODULE
+VIN
VIN
30K
Rpullup
30K
ENABLE
I
Q4
ON/OFF
+
0.047uF
22K
22K
Q3
22K
Q2
22K
V
ON/OFF
_
GND
Circuit configuration for using positive On/Off logic.
For negative logic On/Off modules, the circuit configuration is shown in Fig. 40. The On/Off pin should be pulled
high with an external pull-up resistor (suggested value for the 3V to 14.4V input range is 20Kohms). When
transistor Q1 is in the OFF state, the On/Off pin is pulled high, internal transistor Q4 is turned ON and the module
is OFF. To turn the module ON, Q1 is turned ON pulling the On/Off pin low, turning transistor Q4 OFF resulting in
the PWM Enable pin going high and the module turning ON.
Figure 40
Circuit configuration for using negative On/Off logic.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
13
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Monotonic Start-up and Shutdown
Bel Power Inc., a subsidiary of Bel Fuse Inc.
The SLAN-06D2Ax has monotonic start-up and shutdown behavior for any combination of rated input voltage,
output current and operating temperature range.
Startup into Pre-biased Output
The SLAN-06D2Ax can start into a prebiased output as long as the prebias voltage is 0.5V less than the set
output voltage.
Output Voltage Programming
The output voltage of the module is programmable to any voltage from 0.6dc to 5.5Vdc by connecting a resistor
between the Trim and GND pins of the module. Certain restrictions apply on the output voltage set point
depending on the input voltage. These are shown in the Output Voltage vs. Input Voltage Set Point Area plot in
Fig. 41. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage must be lower
than the maximum of 13V. The Lower Limit curve shows that for output voltages higher than 0.6V, the input
voltage needs to be larger than the minimum of 3V.
Figure 41
Output Voltage vs. Input Voltage Set Point Area plot showing limits where the output voltage can be set for
different input voltages.
Figure 42
VIN(+)
VO(+)
VS+
ON/OFF
LOAD
TRIM
Rtrim
GND
Circuit configuration for programming output voltage using an external resistor.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
14
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Output Voltage Programming(continued)
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Without an external resistor between Trim and GND pins, the output of the module will be 0.6Vdc. To calculate
the value of the trim resistor, Rtrim for a desired output voltage, should be as per the following equation:
12
Vo 0.6
Rtrim
k
Rtrim is the external resistor in kΩ
Vo is the desired output voltage.
Table1
VO, set (V)
0.6
Rtrim (KΩ)
Open
40
0.9
1.0
30
1.2
20
1.5
13.33
10
1.8
2.5
6.316
4.444
2.727
3.3
5.0
Remote Sense
The power module has a Remote Sense feature to minimize the effects of distribution losses by regulating the
voltage at the SENSE pin. The voltage between the SENSE pin and VOUT pin should not exceed 0.5V .
Voltage Margining
Output voltage margining can be implemented in the module by connecting a resistor, Rmargin-up, from the Trim pin
to the ground pin for margining-up the output voltage and by connecting a resistor, Rmargin-down, from the Trim pin
to output pin for margining-down. Figure 43 shows the circuit configuration for output voltage margining. Please
consult your local Bel Power technical representative for additional details.
Figure 43
Vo
Rmargin-down
MODULE
Q2
Trim
Rmargin-up
Rtrim
Q1
GND
Circuit Configuration for margining Output voltage.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Overcurrent Protection
Bel Power Inc., a subsidiary of Bel Fuse Inc.
To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting
circuitry and can endure current limiting continuously. At the point of current-limit inception, the unit enters hiccup
mode. The unit operates normally once the output current is brought back into its specified range.
Overtemperature Protection
To provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit will
shutdown if the overtemperature threshold of 145oC(typ) is exceeded at the thermal reference point Tref . Once
the unit goes into thermal shutdown it will then wait to cool before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout limit, the module operation is disabled. The module will
begin to operate at an input voltage above the undervoltage lockout turn-on threshold.
Power Good
The SLAN-06D2Ax provides a Power Good (PGOOD) signal that is implemented with an open-drain output to
indicate that the output voltage is within the regulation limits of the power module. The PGOOD signal will be de-
asserted to a low state if any condition such as overtemperature, overcurrent or loss of regulation occurs that
would result in the output voltage going ±10% outside the setpoint value. The PGOOD terminal can be connected
through a pullup resistor (suggested value 100K) to a source of 5VDC or lower.
Dual Layout
Identical dimensions and pin layout of Analog and Digital modules permit migration from one to the other without
needing to change the layout. To support this, 2 separate Trim Resistor locations have to be provided in the
layout. For the digital modules, the resistor is connected between the TRIM pad and SGND and in the case of the
analog module it is connected between TRIM and GND.
Figure 44
MODULE
TRIM
Rtrim1
for
Rtrim2
for
Digital
Analog
SIG_GND
GND
Caution – Do not connect SIG_GND to GND elsewhere in the layout
Layout to support either Analog or Digital on the same pad.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
16
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Tunable LoopTM
The SLAN-06D2Ax modules have a feature that optimizes transient response of the module called Tunable
LoopTM.
External capacitors are usually added to the output of the module for two reasons: to reduce output ripple and
noise (see Figure 38) and to reduce output voltage deviations from the steady-state value in the presence of
dynamic load current changes. Adding external capacitance however affects the voltage control loop of the
module, typically causing the loop to slow down with sluggish response. Larger values of external capacitance
could also cause the module to become unstable.
The Tunable LoopTM allows the user to externally adjust the voltage control loop to match the filter network
connected to the output of the module. The Tunable LoopTM is implemented by connecting a series R-C between
the SENSE and TRIM pins of the module, as shown in Fig. 45. This R-C allows the user to externally adjust the
voltage loop feedback compensation of the module.
Figure 45
VOUT
SENSE
RTUNE
C O
MODULE
CTUNE
TRIM
RTrim
GND
Circuit diagram showing connection of RTUME and CTUNE to tune the control loop of the module.
Recommended values of RTUNE and CTUNE for different output capacitor combinations are given in Tables 2 and 3.
Table 2 shows the recommended values of RTUNE and CTUNE for different values of ceramic output capacitors up
to 1000uF that might be needed for an application to meet output ripple and noise requirements. Selecting RTUNE
and CTUNE according to Table 2 will ensure stable operation of the module.
In applications with tight output voltage limits in the presence of dynamic current loading, additional output
capacitance will be required. Table 3 lists recommended values of RTUNE and CTUNE in order to meet 2% output
voltage deviation limits for some common output voltages in the presence of a 3A to 6A step change (50% of full
load), with an input voltage of 12V.
Please contact your Bel Power technical representative to obtain more details of this feature as well as for
guidelines on how to select the right value of external R-C to tune the module for best transient performance and
stable operation for other output capacitance values or input voltages other than 12V.
Table 2
Co
1x47F 2x47F 4x47F 6x47F
10x47F
180
RTUNE
CTUNE
330
270
220
180
680pF
1800pF 3300pF 4700pF
5600pF
General recommended values of of RTUNE and CTUNE for Vin=12V and various external ceramic capacitor
combinations.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
17
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Tunable LoopTM(continued)
Table 3
Vo
Co
5V
3.3V
2.5V
1.8V
1.2V
0.6V
1x330F 2x330F 4x330F
Polymer Polymer Polymer
2x47F 3x47F 3x47F
RTUNE
CTUNE
V
270
2200pF 3300pF 3300pF 4700pF
76mV 48mV 47mV 33mV
180
180
180
180
180
12nF
33nF
18mV
10mV
Recommended values of RTUNE and CTUNE to obtain transient deviation of 2% of Vout for a 3A step load with
Vin=12V.
Thermal Consideration
Power modules operate in a variety of thermal environments; however, sufficient cooling should always be
provided to help ensure reliable operation.
Considerations include ambient temperature, airflow, module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of the module will result in an increase in reliability. The
thermal data presented here is based on physical measurements taken in a wind tunnel. The test set-up is
shown in Figure 46. The preferred airflow direction for the module is in Figure 47.
Figure 46
25.4_
Wind Tunnel
PWBs
(1.0)
Power Module
76.2_
(3.0)
x
Probe Location
for measuring
airflow and
ambient
12.7_
(0.50)
temperature
Air
flow
Figure 46. Thermal Test Setup.
The thermal reference points, Tref used in the specifications are also shown in Figure 47. For reliable operation
the temperatures at these points should not exceed 120oC. The output power of the module should not exceed
the rated power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal Characterization Process For Open-Frame Board-Mounted Power
Modules” for a detailed discussion of thermal aspects including maximum device temperatures.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Thermal Consideration(continued)
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Figure 47
Preferred airflow direction and location of hot-spot of the module (Tref).
Example Application Circuit
Requirements:
Vin:
12V
Vout:
1.8V
Iout:
4.5A max., worst case load transient is from 3.0A to 4.5A
1.5% of Vout (27mV) for worst case load transient
1.5% of Vin (180mV, p-p)
Vout:
Vin, ripple
Vout+
Vin+
VIN
SENSE
PGOOD
RTUNE
CTUNE
RTrim
+
+
MODULE
CI3
CI2
CI1
CO2
CO1
CO3
ON/OFF
GND
TRIM
CI1
Decoupling cap - 1x0.047F/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01)
1x22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
47F/16V bulk electrolytic
CI2
CI3
CO1
CO2
CO3
CTune
RTune
RTrim
Decoupling cap - 1x0.047F/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01)
1 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
1 x 330F/6.3V Polymer (e.g. Sanyo Poscap)
2200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
178 ohms SMT resistor (can be 1206, 0805 or 0603 size)
10k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
19
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Mechanical Outline
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Dimensions are in millimeters and (inches).
Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated]
x.xx mm 0.25 mm (x.xxx in 0.010 in.)
17
16
13
12
15
11
8
14
7
9
PIN
1
2
FUNCTION
ON/OFF
VIN
PIN FUNCTION
10
11
12
13
PGOOD
NC
3
4
GND
VOUT
NC
NC
5
VS+ (SENSE) 14
NC
6
7
8
TRIM
GND
NC
15
16
17
NC
NC
NC
9
NC
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
20
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Recommended Pad Layout
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Dimensions are in millimeters and (inches).
Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated]
x.xx mm 0.25 mm (x.xxx in 0.010 in.)
16
17
13
14
12
15
11
8
9
7
PIN FUNCTION PIN FUNCTION
1
2
3
4
5
6
7
8
9
ON/OFF
VIN
GND
10
11
12
13
PGOOD
NC
NC
NC
NC
NC
NC
NC
VOUT
VS+ (SENSE) 14
TRIM
GND
NC
15
16
17
NC
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
21
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Packaging Details
Bel Power Inc., a subsidiary of Bel Fuse Inc.
The SLAN-06D2Ax modules are supplied in tape & reel as standard.
All Dimensions are in millimeters and (in inches).
Reel Dimensions:
Outside Dimensions:
Inside Dimensions:
Tape Width:
330.2 mm (13.00)
177.8 mm (7.00”)
24.00 mm (0.945”)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
22
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Surface Mount Information
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Pick and Place
The SLAN-06D2Ax modules use an open frame construction and are designed for a fully automated assembly
process. The modules are fitted with a label designed to provide a large surface area for pick and place
operations. The label meets all the requirements for surface mount processing, as well as safety standards, and
is able to withstand reflow temperatures of up to 300oC. The label also carries product information such as
product code, serial number and the location of manufacture.
Nozzle Recommendations
The SLAN-06D2Ax weight has been kept to a minimum by using open frame construction. Variables such as
nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. The
minimum recommended inside nozzle diameter for reliable operation is 3mm. The maximum nozzle outer
diameter, which will safely fit within the allowable component spacing, is 7 mm.
Bottom Side / First Side Assembly
This module is not recommended for assembly on the bottom side of a customer board. If such an assembly is
attempted, components may fall off the module during the second reflow process.
Lead Free Soldering
The SLAN-06D2Ax modules are lead-free (Pb-free) and RoHS compliant and are both forward and backward
compatible in a Pb-free and a SnPb soldering process. Failure to observe the instructions below may result in
the failure of or cause damage to the modules and can adversely affect long-term reliability.
.
Pb-free reflow profile
Power Systems will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic
Solid State Surface Mount Devices) for both Pb-free solder profiles and MSL classification procedures. This
standard provides a recommended forced-air-convection reflow profile based on the volume and thickness of the
package (table 5-2). The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). For questions regarding LGA,
solder volume; please contact Bel power for special manufacturing process instructions.
The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Fig. 48. Soldering outside of the
recommended profile requires testing to verify results and performance.
It is recommended that the pad layout include a test pad where the output pin is in the ground plane. The thermocouple
should be attached to this test pad since this will be the coolest solder joints. The temperature of this point should be:
Maximum peak temperature is 260 C.
Minimum temperature is 235 C.
Dwell time above 217 C: 60 seconds minimum
Dwell time above 235 C: 5 to 15 second
MSL Rating
The SLAN-06D2Ax modules have a MSL rating of 2A.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
23
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Storage and Handling
Bel Power Inc., a subsidiary of Bel Fuse Inc.
The recommended storage environment and handling procedures for moisture-sensitive surface mount packages
is detailed in J-STD-033 Rev. B (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface
Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These
sealed packages should not be broken until time of use. Once the original package is broken, the floor life of the
product at conditions of 30°C and 60% relative humidity varies according to the MSL rating (see J-STD-033A).
The shelf life for dry packed SMT packages will be a minimum of 12 months from the bag seal date, when stored
at the following conditions: < 40° C, < 90% relative humidity.
Figure48
Recommended linear reflow profile using Sn/Ag/Cu solder.
Post Solder Cleaning and Drying Considerations
Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result
of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the
finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to
Board Mounted Power Modules: Soldering and Cleaning Application Note (AN04-001)..
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
24
NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6Vdc - 5.5 Vdc /6 A Outputs
Jul. 13, 2015
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date
Revision
Changes Detail
Approval
2012-03-20
A
First release
HL LU
Updata part selection, absolute maximum ratings, input specifications,
output specifications, general specifications, transient response
waveforms, safety considerations, remote on/off, voltage margining,
over temperature protection, dual layout, thermal consideration,
example application circuit, Pb-free reflow profile, MSL rating and
packaging details.
2015-7-13
B
XFJiang
RoHS Compliance
Complies with the European Directive 2011/65/EU, calling for the elimination of lead and
other hazardous substances from electronic products.
2015 Bel Fuse Inc. Specifications subject to change without notice. 071315
25
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
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