75QBW4_2.25 [GAPTEC]
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated;
| 型号： | 75QBW4_2.25 |
| 厂家： | 
GAPTEC |
| 描述： | 75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated |
| 文件： | 总7页 (文件大小：3996K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
75QBW4_2.25 Series
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated
DC-DC Converter
75W
The 75QBW4_2.25 series contains isolated 75W DC-DC products with 4:1 input vol-
tage. They feature efficiency up to 93%, 2250VDC isolation, operating temperature
of -40°C to +85°C, input under-voltage protection, output short circuit protection,
over-current protection, over-voltage protection, over-temperature protection
and EMI meets CISPR32/EN55032 CLASS B by add module recommended circuit.
Wide input voltage range: 4:1
Efficiency up to 93%
Input under-voltage, output
over-voltage, over-current,
over-temperature protection
International standard
pin-out: 1/4 brick
Five-sided metal shielding
package
Isolation voltage 2.25KVDC
Operating temperature range:
-40°C ~ +85°C
Short circuit protection (SCP)
They are widely applied in battery power supplies, industrial control, electricity,
instruments, railway, communication, intelligence robot fields.
Common specifications
Short circuit protection:
Temperature rise at full load:
Cooling:
Input specifications
Hiccup, continuous, self-recovery
25°C TYP
Item
Test condition
Nominal input
Min
-0.7
Typ
Max
Units
Input current
(Full load/no load)
1698/50 1756/80 mA
mA
mA
Natural convection (20FLM)
-40°C ~ +85°C
Operation temperature range:
Over-temperature Protection:
Trim:
Reflected ripple
current
Nominal input
(1sec max)
30
mA
Base-Plate Temperature 105°C typ.
95%Vo min., 110%Vo max.
105%Vo max.
Surge voltage
90
18
VDC
VDC
Start-up Threshold
Voltage
Sense:
Storage temperature range:
Pin welding resistance temperature:
-55°C ~ +125°C
Under-voltage
protection
• 5/15VDC output 16
• Others
16.5
15.5
VDC
260°C MAX, wave soldering for 10 sec.
300°C MAX, 1.5mm from case for 10 sec.
15
Filter
Ctrl*
PI filter
Storage humidity range:
Vibration:
Non-condensing < 95%RH
• Module switch
on
• Module switch
off
• Input current
when switched off
• Ctrl suspended or connected to
TTL high level (3.5-12VDC)
• Ctrl connected to -Vin or low level
(0-1.2VDC)
IEC/EN61373 car body 1 B mold
Casing material:
Black flame-retardant and heat-
resistant plastic (UL94-V0)
• 2mA typ., 10mA max.
Switching frequency:
MTBF (MIL-HDBK-217F @25°C):
Dimension:
PWM mode, 250KHz typ.
500 Khours min.
Hot-plug
Unavailable
61.8*40.2*12.7mm (no heatsink)
62.0*56.0*14.6mm (with aluminium
bottom case)
* The voltage of Ctrl pin is relative to input pin GND.
61.8*40.2*27.7mm (with heatsink)
Isolation specifications
Weight:
83g (no heatsink)
Item
Test condition
Min
Typ
Max
Units
103g (with aluminium bottom case)
114g (with heatsink)
Insulation voltage*
• Input-output
• Input-case
• Output-case
2250
1500
500
VDC
VDC
VDC
* For 75QBW4_4805S2.25 and 75QBW4_4815S2.25, trim function meets output up
to 10% or sense function meets output up to 5%, Vin needs to exceed 20VDC.
Insulation resistance
Test at 500VDC
100
MΩ
pF
Isolation Capacitance Input/output,
100KHz/0.1V
2200
Example:
75QBW4_4812S2.25
75= 75 Watt; QB= Quarter Brick; W4= Wide input (4:1); 48= 18-75Vin;
12Vout; S= Single Output; 2.25= 2250 VDC Insulation
* Input-output, with the test time of 1 minute and the leak current less than 1mA
Page 1 of 7
75QBW4_2.25 – Rev. 2017-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
75QBW4_2.25 Series
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated
Note:
Output specifications
1. The maximum capacitive load offered were tested at input voltage range and
full load;
2. Unless otherwise specified, data in this datasheet should be tested under the
conditions of Ta=25°C, humidity<75%RH when inputting nominal voltage and
outputting rated load;
3. All index testing methods in this datasheet are based on our Company’s
corporate standards;
4. We can provide product customization service and match filter module;
5. Specifications of this product are subject to chang es without prior notice.
Item
Test condition
Min
Typ
1
Max
3
Units
%
Output voltage
accuracy
Line regulation
Full load, input
voltage low to high
0.2
0.5
0.5
%
Load regulation
Nominal input,
10%-100% load
0.75
%
Transient Recovery
Time
25% load step change
200
500
µs
Transient Response
Deviation
25% load step change
• 5VDC output
• Others
3
3
7.5
5
%
%
Temperature drift
Ripple & Noise*
100% full load
0.03 %/°C
20MHz Bandwidth
•12/15VDC output
• Others
100
150
200
mVp-p
mVp-p
250
Output Over-voltage Input voltage range
Protection
110
110
130
160
%Vo
Output Over-current Input voltage range
Protection
140
190
%Io
* Ripple and noise are measured by “parallel cable” method, please see DC-DC
Converter Application Notes for specific operation.
EMC specifications
EMI
EMI
EMS
CE
CISPR22/EN55032
CISPR22/EN55032
CLASS A and CLASS B (see Fig. 2 for recommended circuit)
RE
CLASS A and CLASS B (see Fig. 2 for recommended circuit)
Contact 6KV; Air 8KV
ESD
IEC/EN61000-4-2
EN50121-3-2
perf. Criteria B
perf. Criteria A
perf. Criteria A
perf. Criteria B
perf. Criteria A
EMS
EMS
EMS
EMS
RS
IEC/EN61000-4-3
GB/T17626.3
10V/m
EFT
IEC/EN61000-4-4
EN50121-3-2
2KV (5KHz, 100KHz)
(see Fig. 1 for recommended circuit)
Surge Immunity
CS
EN50121-3-2
differential mode 1KV, 1.2/50us, source impedance 42Ω
(see Fig. 1 for recommended circuit)
IEC/EN61000-4-6
EN50121-3-2
10 Vr.m.s
Part Number
Input Voltage [VDC]
Output Voltage [VDC]
Current [A, max]
Efficiency [%, typ]
Capacitive load [µF, max]
Nominal (range)
48 (18-75)
48 (18-75)
48 (18-75)
48 (18-75)
48 (18-75)
Max.*
75QBW4_4805S2.25
75QBW4_4812S2.25
75QBW4_4815S2.25
75QBW4_4824S2.25
75QBW4_4848S2.25
80
5
15
6.25
5
91
92
93
92
92
6000
2000
2000
1000
470
80
12
15
24
48
80
80
3.13
1.56
80
Note:
For aluminium base-plate add suffix -BP at the end, f.ex. 75QBW4_xxyyS2.25-BP.
For heat-sink add suffix -HS at the end.
* Absolute maximum rating without damage on the converter, but it isn‘t recommended.
Page 2 of 7
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
75QBW4_2.25 – Rev. 2017-1.1
Specifications subject to change without notice.
75QBW4_2.25 Series
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated
Efficiency curves
75QBW4_4812S2.25(-HS)
75QBW4_4812S2.25(-HS)
Temperature derating curves
75QBW4_4805S2.25
75QBW4_4805S2.25 (-BS; aluminium bottom case)
75QBW4_4805S2.25 (-HS; with heatsink)
75QBW4_48xxS2.25
75QBW4_48xxS2.25 (-BS; aluminium bottom case)
75QBW4_48xxS2.25 (-HS; with heatsink)
Page 3 of 7
75QBW4_2.25 – Rev. 2017-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
75QBW4_2.25 Series
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated
Sense of application and precautions
1. When Remote Sense is not used
Note:
1) When not using remote sense, make sure +Vo and Sense+
are shorted, and that 0V and Sense- are shorted as well;
2) Keep the tracks between +Vo and Sense+, 0V and Sense-
as short as possible. and close to the terminal. Avoid a
looping track. If noise interferes the loop, the operation of
the power module will become unstable.
2. When Remote Sense is used
Note:
1) Using remote sense with long wires may cause output
voltage to become unstable. Consult us if long sensing wiring
is necessary.
2) Sense tracks or wires should be as short as possible. If using
wires, it should not use twisted-pair or shielded wires.
3) Please use wide PCB tracks or a thick wires between the
power supply module and the load, the line voltage drop
should be kept less than 0.3V. Make sure the power supply
module‘s output voltage remains within the specified range.
4) The impedance of wires may cause the output voltage
oscillation or a greater ripple, please take adequate assess-
ments before using.
Design reference
1. Typical application
If not using Gaptec’s recommended cicuit, please ensure an 220µF electrolytic capacitors in parallel with the input, which used to
suppress the surge voltage come from the input terminal.
All the DC/DC converters of this series are tested according to the recommended circuit (see below) before delivery.
If it is required to further reduce input&output ripple, properly increase the input & output of additional capacitors Cin and Cout
or select capacitors of low equivalent impedance,provided that the capacitance is no larger than the max. capacitive load of the
product.
Vout (VDC)
Fuse
Cin (µF)
220
Cout (µF)
470
5
12/15
24
10A, slow blow
10A, slow blow
10A, slow blow
10A, slow blow
220
220
220
100
48
220
100
Page 4 of 7
75QBW4_2.25 – Rev. 2017-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
75QBW4_2.25 Series
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated
Design reference
2. EMC solution-module recommended circuit
Fig. 1
Fig. 2
Device number
Device parameter
Device function
C1
50µF electrolytic caoacitor
47µF electrolytic caoacitor
2.2µF ceramic caoacitor
C9
C2, C3, C4, C5, C6, C7, C8
L1
Meet conducted
emission
and radiated emission
1.0mH common mode
inductor
L2
1.5µH inductance
CY1, CY2, CY3, CY4
1nF Y1safety caoacitor
3. Application of Trim and calculation of Trim resistance
When the Trim function with down regulated is used,
If the RT resistor is too low or “Trim” is short with
“+Vo”, the output voltage Vo’ would be lower than
0.9Vo, which may cause the product to be irreversibly
damaged.
Vout (VDC)
R1 (KΩ)
3.036
11.00
R2 (KΩ)
3
R3 (KΩ)
Vref (V)
2.5
5
10
15
15
15
15
12
15
24
48
2.87
2.8
2.5
14.03
2.5
24.872
53.017
2.87
2.913
2.5
2.5
Page 5 of 7
75QBW4_2.25 – Rev. 2017-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
75QBW4_2.25 Series
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated
Design reference
4. Reflected ripple current--test circuit
5. It is not allowed to connect modules output in parallel to enlarge the power.
Mechanical dimensions
Page 6 of 7
75QBW4_2.25 – Rev. 2017-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
75QBW4_2.25 Series
75W - Single Output DC-DC Converter - Wide Input - Isolated & Regulated
Mechanical dimensions and recommended layout (with aluminium bottom case)
Mechanical dimensions and recommended layout (with heatsink)
Page 7 of 7
75QBW4_2.25 – Rev. 2017-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
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