MEW1031 [MINMAX]
2W, Wide Input Range SIP, Single & Dual Output DC/DC Converters; 2W ，宽输入范围的SIP ，单和双输出DC / DC转换器
| 型号： | MEW1031 |
| 厂家： | 
MINMAX TECHNOLOGY CO., LTD. |
| 描述： | 2W, Wide Input Range SIP, Single & Dual Output DC/DC Converters |
| 文件： | 总8页 (文件大小：187K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MEW1000 Series
2W, Wide Input Range SIP, Single & Dual Output DC/DC Converters
Key Features
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Efficiency up to 80%
1500VDC Isolation
MTBF > 1,000,000 Hours
4:1 Wide Input Range
Low Cost
Remote On/Off Control
Low Ripple and Noise
Temperature Performance -40] to +75]
UL 94V-0 Package Material
Internal SMD Construction
1500
VDC
4:1
$
Remote on/off
Wide Range
Low Cost
I/O Isolation
Low Noise
Low Profile
Minmax's MEW1000-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 9-36VDC and
18-75VDC which provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and {15VDC.
The MEW1000 series is an excellent selection for data communication equipments, mobile battery driven equipments, distributed power
systems, telecommunication equipments, mixed analog/digital subsystems, process/machine control equipments, computer peripheral
systems and industrial robot systems.
The modules have a maximum power rating of 2W and a typical full-load efficiency of 80%, continuous short circuit, 30mV output ripple,
built-in filtering for both input and output minimize the need for external filtering.
Absolute Maximum Ratings
Environmental Specifications
Parameter
Min. Max. Unit
-0.7 50 VDC
-0.7 100 VDC
--- 260
--- 2,500 mW
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Conditions Min. Max. Unit
24VDC Input Models
48VDC Input Models
Ambient
Case
-40
-40
+75
+90
]
]
]
%
Input Surge Voltage
( 1000 mS )
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
]
-55 +105
--- 95
Free-Air Convection
Cooling
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
REV:3 2008/10/02
MINMAX
1
MEW1000 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
Output Current
Input Current
Reflected
Ripple
Current
Efficiency
Max.
mA
500
400
Min.
mA
125
100
42
@Max. Load
mA (Typ.)
97
@No Load
mA (Typ.)
@Max. Load
% (Typ.)
71
VDC
VDC
3.3
5
mA (Typ.)
MEW1021
MEW1022
MEW1023
MEW1024
MEW1025
MEW1026
MEW1027
MEW1031
MEW1032
MEW1033
MEW1034
MEW1035
MEW1036
MEW1037
110
106
105
114
108
106
49
76
12
167
79
24
( 9 ~ 36 )
15
134
33
20
15
300
80
{5
{12
{15
3.3
5
{200
{83
{67
500
{50
{21
{17
125
100
42
73
77
79
70
400
58
72
12
167
54
78
48
15
134
33
54
600
78
( 18 ~ 75 )
{5
{12
{15
{200
{83
{67
{50
{21
{17
60
70
55
76
55
76
Capacitive Load
Models by Vout
3.3V
5V
12V
170
15V
{5V #
470
{12V #
{15V #
47
Unit
Maximum Capacitive Load
2200
1000
110
100
uF
# For each output
Input Fuse Selection Guide
24V Input Models
350mA Slow - Blow Type
48V Input Models
135mA Slow - Blow Type
Input Specifications
Parameter
Model
Min.
4.5
Typ.
6
Max.
Unit
Start Voltage
24V Input Models
48V Input Models
24V Input Models
48V Input Models
8.5
17
8
8.5
12
VDC
Under Voltage Shutdown
---
---
---
---
---
---
---
---
16
0.5
Reverse Polarity Input Current
Short Circuit Input Power
Input Filter
A
All Models
1500
mW
Capacitor type
REV:3 2008/10/02
MINMAX
2
MEW1000 Series
Output Specifications
Parameter
Conditions
Min.
---
Typ.
{1.0
{1.0
{0.3
{0.5
30
Max.
{2.0
{2.0
{0.5
{0.75
50
Unit
%
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Dual Output, Balanced Loads
Vin=Min. to Max.
---
%
---
%
Load Regulation
Io=25% to 100%
---
%
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Power Protection
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
---
mV P-P
mV P-P
mV rms
%
Over Line, Load & Temp.
25% Load Step Change
---
---
---
---
100
75
---
15
120
---
300
---
uS
---
{3
{5
%
---
{0.01
{0.02
%/]
Continuous
General Specifications
Parameter
Conditions
60 Seconds
Min.
1500
1650
1000
---
---
1000
Typ.
---
---
---
250
Max.
---
---
---
500
Unit
VDC
VDC
M[
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
Flash Tested for 1 Second
500VDC
100KHz,1V
pF
300
---
---
KHz
MIL-HDBK-217F @ 25], Ground Benign
---
K Hours
Remote On/Off Control
Parameter
Conditions
Min.
Typ.
Max.
Unit
Supply On
Under 0.6 VDC or Open Circuit, drops down to 0VDC by 2mV/]
Supply Off
2.9
---
1
15
3
VDC
mA
Device Standby Input Current
Control Input Current ( on )
Control Input Current ( off )
Control Common
---
---
---
Vin = 0V
---
---
-1
1
mA
Vin = 5.0V
mA
Referenced to Negative Input
Notes:
1. Specifications typical at Ta=+25], resistive load, nominal input voltage, rated output current unless otherwise noted.
2. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%.
3. Ripple & Noise measurement bandwidth is 0-20 MHz.
4. These power converters require a minimum output loading to maintain specified regulation.
5. Operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed.
6. All DC/DC converters should be externally fused on the front end for protection.
7. Other input and output voltage may be available, please contact factory.
8. Specifications subject to change without notice.
REV:3 2008/10/02
MINMAX
3
MEW1000 Series
Block Diagram
Single Output
Dual Output
+Vo
-Vo
+Vo
Com.
-Vo
+Vin
+Vin
-Vin
PFM
Isolation
Ref.Amp
-Vin
On/Off
PFM
Isolation
Ref.Amp
On/Off
Input Voltage Transient Rating
150
140
130
120
110
100
90
48VDC Input Models
24VDC Input Models
80
70
60
50
40
30
20
10
0
10uS
100uS
1mS
10mS
100mS
REV:3 2008/10/02
MINMAX
4
MEW1000 Series
100
90
80
70
60
50
40
100
90
80
70
60
50
40
Nom
Low
High
Nom
Low
High
Input Voltage (V)
Input Voltage (V)
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
90
80
70
60
50
40
30
20
90
80
70
60
50
40
30
20
10
60
80
100
20
40
10
100
20
40
60
80
Load Current(%)
Load Current(%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
400LFM
200LFM
100LFM
80
Natural
convection
60
40
20
0
～
-40
50
60
70
80
90
100
110
Ambient Temperature
]
Derating Curve
REV:3 2008/10/02
MINMAX
5
MEW1000 Series
Maximum Capacitive Load
Test Configurations
The MEW1000 series has limitation of maximum
connected capacitance on the output.
Input Reflected-Ripple Current Test Setup
The power module may operate in current limiting mode
during start-up, affecting the ramp-up and the startup time.
The maximum capacitance can be found in the data sheet.
Input reflected-ripple current is measured with a inductor
Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 kHz) to
simulated source impedance.
Capacitor Cin, offsets possible battery impedance.
Current ripple is measured at the input terminals of the
module, measurement bandwidth is 0-500KHz.
Overcurrent Protection
To provide protection in a fault (output overload) condition,
the unit is equipped with internal current limiting circuitry and
can endure current limiting for an unlimited duration. At the
point of current-limit inception, the unit shifts from voltage
control to current control. The unit operates normally once the
output current is brought back into its specified range.
To Oscilloscope
+Vin
+Out
+
+
Lin
DC / DC
Converter
Current
Probe
Load
Battery
Cin
-Vin
-Out
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power module.
In applications where power is supplied over long lines and
output loading is high, it may be necessary to use a capacitor
on the input to insure startup.
By using a good quality low Equivalent Series Resistance
(ESR < 1.0[ at 100 kHz) capacitor of a 1.5uF for the 24V and
48V devices, capacitor mounted close to the power module
helps ensure stability of the unit.
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47uF ceramic capacitor.
Scope measurement should be made by using a BNC
socket, measurement bandwidth is 0-20 MHz. Position the
load between 50 mm and 75 mm from the DC/DC Converter.
+Vin
+Out
Copper Strip
Cout
Single Output
DC / DC
Resistive
Load
Scope
+
+Vin
DC / DC
+Out
Converter
+
DC Power
Source
-Vin
-Out
Load
Converter
Cin
-
-Vin
-Out
Copper Strip
Cout
+Vin
+Out
Com.
-Out
Scope
Scope
Dual Output
DC / DC
Resistive
Load
Output Ripple Reduction
Converter
Cout
A good quality low ESR capacitor placed as close as
practicable across the load will give the best ripple and noise
performance.
-Vin
To reduce output ripple, it is recommended that 3.3uF
capacitors are used on output.
Design & Feature Considerations
Remote On/Off
+
+Vin
-Vin
+Vin
-Vin
+Out
-Out
Negative logic remote on/off turns the module off during a
logic high voltage on the remote on/off pin, and on during a
logic low.
To turn the power module on and off, the user must supply
a switch to control the voltage between the on/off terminal and
the -Vin terminal.
The switch can be an open collector or equivalent.
A logic high is 2.9V to 15V.
A logic low is under 0.6 VDC or open circuit, drops down to
0VDC by 2mV/]
The maximum sink current at on/off terminal during a logic
low is 1 mA.
The maximum allowable leakage current of the switch at
on/off terminal =(under 0.6VDC or open circuit) is 1mA.
Single Output
DC / DC
DC Power
Source
Converter
Cout
Load
-
+
+Out
Com.
-Out
Dual Output
DC / DC
Cout
Load
DC Power
Source
Converter
-
REV:3 2008/10/02
MINMAX
6
MEW1000 Series
Thermal Considerations
Many conditions affect the thermal performance of the
power module, such as orientation, airflow over the module,
and board spacing. To avoid exceeding the maximum
temperature rating of the components inside the power
module, the case temperature must be kept below 90°C.
The derating curves were determined from measurements
obtained in an experimental apparatus.
Position of air velocity
Air Flow
50mm / 2in
probe and thermocouple
15mm / 0.6in
DUT
REV:3 2008/10/02
MINMAX
5
MEW1000 Series
Physical Characteristics
Mechanical Dimensions
25.95*9.25*12.45 mm
1.02*0.36*0.49 inches
:
Case Size
Case Material
Weight
:
:
:
Non-Conductive Black Plastic
2.54
6.5g
2.03[0.08]
7.62[0.300]
[0.100]
9.25[0.36]
2.54[0.100]X8=20.32[0.80]
25.95[1.02]
Flammability
UL94V-0
1
2
3
6
7
8
9
0.5[0.02]
Tolerance
Pin
Millimeters
X.X{0.25
X.XX{0.13
{0.05
Inches
X.XX{0.01
X.XXX{0.005
{0.002
Pin Connections
Pin
1
Single Output
-Vin
Dual Output
-Vin
2
+Vin
+Vin
3
Remote On/Off
+Vout
Remote On/Off
+Vout
6
7
NC
Common
NC
8
NC
9
-Vout
-Vout
NC: No Connection
REV:3 2008/10/02
MINMAX
8
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