25DMOW [GAPTEC]
25W - Single Output - Wide Input - Isolated & Regulated;型号: | 25DMOW |
厂家: | GAPTEC |
描述: | 25W - Single Output - Wide Input - Isolated & Regulated |
文件: | 总6页 (文件大小:3047K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
25DMOW_1.5 series
25W - Single Output - Wide Input - Isolated & Regulated
DC-DC Converter
DC-DC Converter
25 Watt
Wide 2:1 input voltage range
High efficiency up to 88%
Short circuit protection (SCP)
Isolation voltage: 1.5kVDC
Over-current, over-voltage,
over-temperature protection
Input under-voltage lockout
RoHS compliant
Operating temperature range:
The 25DMOW_1.5 series are isolated 25W DC/DC converters with 2:1
input voltage. They feature efficiency up to 88%, 1500VDC isolation,
operating temperature of -40°C to +85°C, input under-voltage protec-
tion, output over-voltage, output over-current, output short circuit
protection and meets IEC60950-1.
-40°C to +85°C
Fixed switching frequency
Remote on/off negative logic
International standard pin-out
Monotonic startup into
pre-biased loads
Adjustable output voltage
range
IEC/UL/EN60950-1 approved
They are widely applied in optical networking equipment, wireless base
stations, microwave radio communications, telecom and data equip-
ment applications.
UL-60950-1 (E347551)
Common specifications
Short circuit protection:
Cooling:
Output specifications
Hiccup, continuous, self-recovery
Free air convection
-40°C~+85°C
Item
Test condition
Min
Typ
5
Max
5.05
Units
V
Voltage set point
25°C, Io=Io (max)
4.95
Operation temperature range:
Storage temperature range:
Storage humidity range:
Thermal stability time:
FIT:
Line regulation*
Vin(min to Vin(max)
Io= Io(max),
Vo=Vo(nom)
0.1
%Vo
%Vo
-55°C~+125°C
90% MAX
Load regulation*
Voltage precision
Vin=Vin(nom)
0.125
30mins
Io=0 to Io (max)
312.5; 109/MTBF
At 50% load
1
%Vo
%Vo
Vibration:
IEC60068-2-6: 10~500Hz sweep, 0.75mm
excursion, 10g acceleration, 10minutes
in each 3 perpendicular directions
Voltage adjust-
ment range
-20
10
Remote sense
Vsense = Vout - Vload,
sense connected at load
10
%Vo
A
Shock:
Safety:
IEC 60068-2-27:200g acceleration, dura-
tion 3ms, 6 drops in each 3 perpendicu-
lar directions
Current Limit
5.5
0
7.5
Compliant to IEC60950-1, UL60950-1,
EN60950-1 and GB4943
External load
capacitance
Full resistive load,
low ESR
2200 µF
Switching frequency:
Transportation:
450KHz TYP, fixed frequency
ETS300019-1-2
Temperature
coefficient
At all outputs
200
200
ppm/°C
Dynamic response 25%-50%-25%,50%-
recovery time 75%-50% Io(nom)
100
75
µS
MTBF
3,200,000 hours
(Telcordia SR332, ground fixed, 40°C):
Dynamic response 50%-75%-50%,di/
dt=2.5A/µS
Weight:
6.5g
• Recovery time
• Overshoot
µs
mV
150
Protection specifications
Ripple and noise**
50
10
mVp-p
ms
Item
Test condition
Min
Typ
Max
Units
Turn-on delay time Time from instant at
which Vin=Vin (Turn-
50
50
Input under voltage
lockout
• Turn-on
• Turn-off
• Hysteresis
33
31
34
33
1
36
35
V
V
V
on) until Vo=10% of
Vo (nom)
Short circuit current
Hiccup
0.3
yes
A
Turn-on rise time
Time for Vo to rise
from 10% of Vo (nom)
to 90% of Vo (nom)
10
ms
Over current
protection
Hiccup mode,
automatic recovery
Over voltage
protection
Under the converter’s
maximum allowable
output power. Hiccup
mode, minimum
6
7.2
V
*
Regulation specifications describe the deviation as the input line voltage or output
load current is varied from a nominal midpoint value to either extreme (50% load).
** Output noise may be further reduced by installing an external filter. See
Ripple&Noise test setup. Use only as much output filtering as needed and no
more. Larger caps (especially low-ESR ceramic types) may slow transient response
or degrade dynamic performance. Thoroughly test your application with all
components installed.
load of 20%Io max
Over temperature
protection
Automatic recovery
See OTP section
115
5
°C
°C
Over Temperature
Protection Hysteresis See OTP section
Automatic recovery
Remote control specifications
Item
Test condition
Min
-0.7
2.4
Typ
1
Max
1.2
Units
V
Logic low voltage
Logic high voltage
Control current
Example:
25DMOW_4805S1.5
25 = 25Watt; D = DIP; M = Miniature; O = Open frame; W = wide
input (2:1); 36-75Vin; 5Vout; S = single output; 1.5 = 1500VDC
14
V
mA
Page 1 of 6
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
25DMOW_1.5 – Rev. 2020-1.0
Specifications subject to change without notice.
25DMOW_1.5 series
25W - Single Output - Wide Input - Isolated & Regulated
DC-DC Converter
Input specifications
Isolation specifications
Item
Item
Test condition
Min
36
Typ
48
Max
75
Units
V
Test condition
Input/output
Test at 500VDC
Min
10
Typ
Max
Units
VDC
MΩ
Operating input
voltage
Isolation voltage*
Isolation resistance**
Isolation capacitance
1500
Max. input current
100% load Vin= Vin
(min) to Vin (max)
0.9
75
A
2200
pF
Input current
no load, full input
45
50
mA
mA
*
Test duration 1 minute, leak current lower than 10mA
** The isolation resistance of input to output is no less than 10MΩ
Short circuit input
current
Reflected ripple
current
peak-to-peak
15
mA
Inrush transient
Input fuse
Vin=48V
0.05
A2S
A
Fast blow
2
Product Selection Guide
Input Voltage [VDC]
Output Voltage
Output Current
Efficiency
[%, Min./Typ.]
Capacitive load
[µF, Max.]
Part Number
Nominal
Range
Max
[VDC]
[A, max]
5
36-75
80
5
5000
86/88
1000
25DMOW_4805S1.5
Typical characteristics
Efficiency
Derating
Converter Efficiency Vs. Output Current
Available load current vs. ambient temperature and
airflow for the module mounted horizontally
Dynamic Response
Vin=48V/Vo=5V,50%-75%-50%load,2.5A/µs @25°C
Output ripple & noise
@25°C(Vin=48V/Io=5A,20MHz bandwidth)
Page 2 of 6
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
25DMOW_1.5 – Rev. 2020-1.0
Specifications subject to change without notice.
25DMOW_1.5 series
25W - Single Output - Wide Input - Isolated & Regulated
DC-DC Converter
Typical characteristics
Start-up
Start-up
Typical Start-up @25°C(Vin=48V/Io=5A)
Typical Start-up @25°C(Vin=48V/Io=0A)
Test configurations
Input Reflected Ripple Current Test Setup
Output Ripple and Noise Test Setup
Measure input reflected ripple current with a simulated
source inductance of 12µH. The measurement points for
input reflected ripple current is showed above.
Scope measurements should be made using a BNC socket,
with 220µF Tantalum capacitor and 2*47µF ceramic
capacitor. Position the oscilloscope between 51mm and
76mm (2 inch and 3 inch) from the module.
Page 3 of 6
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
25DMOW_1.5 – Rev. 2020-1.0
Specifications subject to change without notice.
25DMOW_1.5 series
25W - Single Output - Wide Input - Isolated & Regulated
DC-DC Converter
Remote on/off
Remote On/Off Implementation
The REM pin is used to turn the power converter remote on
or off via a system signal. This power module is negative
logic version. When the REM pin is at logic low the power
turns on and turns off at logic high. We also provide positive
logic remote On/Off, turns the module on during logic high
voltage and off during a logic low.
To turn the power module on and off, the user must supply a
switch to control the voltage between the REM pin and -Vin
terminal (see Figure on the left). A logic low is VREM =-0.7V to
1.2V. During logic high, the maximum VREM voltage genera-
ted by the power module is 15V.
If not using the remote on/off feature, perform one of the
following to turn the converter on:
For negative logic, short REM pin to -Vin.
For positive logic, leave REM pin open.
Remote sense
Circuit configuration for remote sense
Remote sense minimizes the effects of distribution losses by
regulating the voltage at the remote sense connections (see
figure on the left). The voltage between the remote sense pins
and
the output terminals must not exceed the output voltage
sense range (<10% Vo(nom)).
The voltage between the +VO1 and GND terminals must not
exceed the minimum output overvoltage protection value
shown in the Electrical Specifications table. This limit includes
any increase in voltage due to remote sense compensation
and output voltage programming (trim). If not using the
remote sense feature to regulate the output at the point of
load, then connect +S to +VO1 and -S to GND.
Output voltage programming
Circuit configuration to increase output voltage
Output voltage trim allows the user to increase or decrease
the output voltage set point of a module. This is accomplished
by connecting an external resistor between the TRIM pin and
either the +S or -S pins. If not using the trim feature, leave the
TRIM pin open.
To increase the output voltage, refer to the figure on the left.
A trim resistor, Rtrimup, is connected between the TRIM and +S.
Page 4 of 6
25DMOW_1.5 – Rev. 2020-1.0
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
25DMOW_1.5 series
25W - Single Output - Wide Input - Isolated & Regulated
DC-DC Converter
Output voltage programming
Circuit configuration to decrease output voltage
Trimming beyond 110% of the rated output voltage is not an
acceptable design practice, as this condition could cause
unwanted triggering of the output overvoltage protection
(OVP) circuit. When trimming up, care must be taken not to
exceed the converter’s maximum allowable output power.
To decrease the output voltage (see figure on the left), a trim
resistor, Rtrimdown, should be connected between the TRIM
and -S, with a value of
Heat transfer via convection
Over temperature protection
Recommended airflow direction
Tref Temperature Measurement Location
Recommended reflow profile
Lead-free (Pb-free) solder processes
For Pb-free solder processes, a pin temperature (TPIN) in excess of the sol-
der melting temperature (TL, +217°C to +221°C for Sn/Ag/Cu solder alloys)
for more than 30 seconds, and a peak temperature of +235°C on all solder
joints is recommended to ensure a reliable solder joint.
For Pb-free solder processes, the product is qualified for MSL 3 according to
IPC/JEDEC standard J-STD-020C. During reflow, TP must not exceed +245°C
at any time.
Page 5 of 6
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
25DMOW_1.5 – Rev. 2020-1.0
Specifications subject to change without notice.
25DMOW_1.5 series
25W - Single Output - Wide Input - Isolated & Regulated
DC-DC Converter
Recommended EMC application
Suggested configuration to meet the conducted emission limits of EN55022
Class B.
Mechanical dimensions
Through hole mounting
Recommended pad layout
Note:
Dimensions are in millimeters and (inches).
Note:
1. The maximum capacitive loads offered were tested at input voltage range and
full load.
2. Only typical model listed. Non-standard models will be different from the abo-
ve, please contact us for more details.
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 )
3. All specifications are measured at TA = 25°C, humidity <75%, nominal input
voltage and rated output load unless otherwise specified.
4. In this datasheet, all the test methods of indications are based on corporate
standards.
5. We can provide product customization service, please contact our technicians
directly for specific information.
6. Our products shall be classified according to ISO14001 and related environmen-
tal laws and regulations, and shall be handled by qualified units.
Page 6 of 6
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
25DMOW_1.5 – Rev. 2020-1.0
Specifications subject to change without notice.
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