MIR500 Series
2 Watts High In/Out Isolation DIP DC/DC Converters
Single and Dual Outputs
Key Features
I/O Isolation 4000VAC
Low Isolation Capacitance
Low Leakage Current
Regulated Outputs
Short Circuit Protection
Low Cost
EMI Complies With EN55022 Class A
MTBF > 600,000 Hours
MIR500 2W DC/DC's are specially designed to
provide ultra-high levels of isolation 5600VDC in a
low-profile DIP package.
The series consists of 18 models with input voltages of
5V, 12V and 24V, and offers regulated output voltages of 5V,
12V, 15V in both single and dual output configurations.
The MIR500 series is an excellent selection for a wide
variety of applications including mixed analog/digital
subsystems, railroad/transportation equipments, medical
equipment subsystems, process/machine control equipments
and automatic test instrumentation.
$
Low Cost
4000
VAC
I/O Isolation
EMI
EN55022
Low Noise
Block Diagram
Single Output
Dual Output
+Vin
LC
Filter
-Vin
Bipolar
Push-Pull
Inverter
Low
Dropout
Regulator
+Vo
+Vin
LC
Filter
-Vin
-Vo
Bipolar
Push-Pull
Inverter
Positive
Regulator
+Vo
Com.
Negative
Regulator
-Vo
MIR500 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
Output Current
Input Current
Reflected
Ripple
Current
mA (Typ.)
Efficiency
VDC
MIR501
MIR502
MIR503
MIR504
MIR505
MIR506
MIR511
MIR512
MIR513
MIR514
MIR515
MIR516
MIR521
MIR522
MIR523
MIR524
MIR525
MIR526
VDC
5
12
15
{5
{12
{15
5
12
15
{5
{12
{15
5
12
15
{5
{12
{15
Max.
mA
400
165
133
{100
{83
{66
400
165
133
{100
{83
{66
400
165
133
{100
{83
{66
Min.
mA
@Max. Load
mA (Typ.)
645
629
623
476
699
695
269
262
260
185
281
280
134
131
130
93
143
142
@No Load
mA (Typ.)
@Max. Load
% (Typ.)
62
63
64
42
57
57
62
63
64
45
59
59
62
63
64
45
58
58
5
(4.5 ~ 5.5)
0
100
15
12
(10.8 ~ 13.2)
0
50
8
24
(21.6 ~ 26.4)
0
30
3
Absolute Maximum Ratings
Parameter
Input Surge Voltage
( 1000 mS )
5VDC Input Models
12VDC Input Models
24VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Min.
-0.7
-0.7
-0.7
---
---
Max.
7.5
15
30
260
2,000
Unit
VDC
VDC
VDC
]
mW
Note :
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 50% to 100%.
3. Ripple & Noise measurement bandwidth is
0-20 MHz.
4. All DC/DC converters should be externally
fused at the front end for protection.
Exceeding these values can damage the module. These are not continuous
operating ratings.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
Conducted EMI
Conditions
Ambient
Case
Min.
Max.
-25
+60
-25
+90
-40
+125
---
95
Free-Air Convection
EN55022 Class A
Unit
]
]
]
%
5. Other input and output voltage may be
available, please contact factory.
6. Specifications subject to change without notice.
MIR500 Series
Test Configurations
Input Reflected-Ripple Current Test Setup
To Oscilloscope
+
Battery
+
Lin
Current
Probe
+Vin
+Out
Load
In applications where power is supplied over long lines and
output loading is high, it may be necessary to use a capacitor
at the input to ensure startup.
Capacitor mounted close to the power module helps
ensure stability of the unit, it is recommended to use a good
quality low Equivalent Series Resistance (ESR < 1.0[ at 100
KHz) capacitor of a 4.7uF for the 5V input devices and a 2.2uF
for the 12V and 24V devices.
DC / DC
Converter
-Vin
-Out
Cin
Output Ripple Reduction
A good quality low ESR capacitor placed as close as
practicable across the load will give the best ripple and noise
performance.
To reduce output ripple, it is recommended to use 1.5uF
capacitors at the output.
+
DC Power
Source
-
-Vin
+Vin
Single Output
DC / DC
Converter
-Out
+Out
Input reflected-ripple current is measured with a inductor
Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 KHz) to
simulate source impedance.
Capacitor Cin, offsets possible battery impedance.
Current ripple is measured at the input terminals of the
module, measurement bandwidth is 0-500 KHz.
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.33uF 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
Single Output
DC / DC
Converter
-Vin
-Out
+Out
Copper Strip
Cout
Scope
Resistive
Load
Cout
Load
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC Com.
Converter
Cout
Load
-Vin
-Out
+Vin
Dual Output
DC / DC
Converter
-Vin
+Out
Com.
Copper Strip
Cout
Cout
Scope
Resistive
Load
Scope
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 85°C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
-Out
Design & Feature Considerations
Maximum Capacitive Load
The MIR500 series has limitation of maximum connected
capacitance at the output.
The power module may be operated in current limiting
mode during start-up, affecting the ramp-up and the startup
time.
For optimum performance we recommend 220uF
maximum capacitive load for dual outputs and 470
u
F
capacitive load for single outputs.
The maximum capacitance can be found in the data.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
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.
+
DC Power
Source
-
+
Cin
+Vin
DC / DC
Converter
-Vin
+Out
Load
-Out
嵌入式系统
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