QT8A_0505S1.5UP [GAPTEC]
0.25W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated;
| 型号： | QT8A_0505S1.5UP |
| 厂家： | 
GAPTEC |
| 描述： | 0.25W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated |
| 文件： | 总4页 (文件大小：1762K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QT8A_1.5UP Series
0.25W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated
DC-DC Converter
0.25 Watt
1500VDC isolation
Compact SMD package
Internal SMD construction
Industry standard pinout
RoHS Compliance
The QT8A_1.5UP series is specially designed for applications where an
Efficiency up to 77%
Operating temperature range:
-40°C ~ +105°C
isolated voltage is required in a distributed power supply system.
These products apply to:
Low ripple & noise
Short circuit protection (SCP)
1) Where the voltage of the input power supply is fixed
(Voltage variation ≤ 10ꢀ)
2) Where isolation is necessary between input and output
(Isolation voltage ≤1500VDC)
3) Where the regulation of the output voltage and the output ripple
noise are not demanding.
Such as: pure digital circuits, low frequency analog circuits, and relay-
driven circuits.
Common specifications
Short circuit protection*:
Temperature rise at full load:
Cooling:
Output specifications
Continuous, automatic recovery
20°C TYP
Item
Test condition
Min
Typ
Max
Units
Output voltage
accuracy
See tolerance envelope graph
Free air convection
-40°C~+105°C
Line regulation
For Vin change of 1ꢀ
• 3.3V output
• other output
Operation temperature range:
Storage temperature range:
Lead temperature:
1.5
1.2
ꢀ
ꢀ
-55°C ~+125°C
Load regulation
10ꢀ to 100ꢀ load
• 3V output
• 5V/9V output
• 12V/15V output
300°C MAX, 1.5mm from case for 10 sec
15
12
7
20
15
10
ꢀ
ꢀ
ꢀ
Reflow Soldering Temperature:
Peak temp. ≤245°C, maximum duration
time ≤60s at 217°C. For actual application,
please refer to IPC/JEDEC J-STD-020D.1.
Temperature drift
Ripple & Noise*
100ꢀ full load
0.03
ꢀ/°C
Storage humidity range:
Case material:
MTBF:
< 95ꢀ
20MHz Bandwidth
10&
20
120
mVp-p
Epoxy Resin [UL94-V0]
>3,500,000 hours
12.70*11.20*7.25 mm
1.5g
Switching frequency Full load, nominal input
100
300
KHz
Dimensions:
Weight:
* Test ripple and noise by “parallel cable” method. See detailed operation
instructions at application notes.
* Supply voltage must be discontinued at the end of short circuit duration for
QT8A_03xx series.
EMC specifications
EMI
EMI
EMS
CE
CISPR22/EN55022
CLASS B (see EMC recommended circuit)
Input specifications
RE
CISPR22/EN55022
CLASS B (see EMC recommended circuit)
Item
Test condition
Min
Typ
Max
Units
Input current
(full load/no load)
• 5V input
• 12V input
• 24V input
68/15
27/10
15/8
mA
mA
mA
ESD
IEC/EN61000-4-2
perf. Criteria B
Contact 8KV
Reflected ripple
current
• 5V input
20
5
mA
mA
• 12V/24V input
Example SIP4 Case:
QT8A_0505S1.5UP
Q= 0,25 Watt; T8= SMT8; A= Pinning; 05= 5Vin; 05= 5Vout;
S= Single Output; 1.5= 1.5kVDC Isolation; U= Unregulated Output
P= Short circuit protection
Input surge voltage
(1sec. max.)
• 5V input
• 12V input
• 24V input
-0.7
-0.7
-0.7
9
VDC
VDC
VDC
18
30
Input filter
Capacitor filter
Note:
Isolation specifications
1. Operation under minimum load will not damage the converter; However, they
may not meet all specifications.
2. Max. Capacitive Load is tested at nominal input voltage and full load.
3. Unless otherwise noted, All specifications are measured at Ta=25°C,
humidity<75ꢀ, nominal input vol tage and rated output load.
4. In this datasheet, all test methods are based on our corporate standards.
5. All characteristics are for listed models, and non-standard models may perform
differently. Please contact our technical support for more detail.
6. Please contact our technical support for any specific requirement.
7. Specifications of this product are subject to changes without prior notice.
Item
Test condition
Min
Typ
20
Max
Units
VDC
Isolation voltage
Tested for 1 minute
and 1mA max
1500
Isolation resistance
Test at 500VDC
1000
MΩ
pF
Isolation capaci-
tance
Input-output,
100KHz/0.1V
Page 1 of 4
QT8A_1.5UP – Rev. 2018-1.2
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
QT8A_1.5UP Series
0.25W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated
Part Number
Input Voltage [VDC]
Nominal (Range)
Output Voltage
[VDC]
Output Current
[mA, max/min]
Max. capacitive load [µF]
Efficiency
[%, typ.]
QT8A_0303S1.5U
QT8A_0305S1.5U
QT8A_0312S1.5U
QT8A_0503S1.5UP
QT8A_0505S1.5UP
QT8A_0509S1.5UP
QT8A_0512S1.5UP
QT8A_0515S1.5UP
QT8A_1203S1.5UP
QT8A_1205S1.5UP
QT8A_1209S1.5UP
QT8A_1212S1.5UP
QT8A_2405S1.5UP
3.3 (2.97-3.63)
3.3 (2.97-3.63)
3.3 (2.97-3.63)
5 (4.5-5.5)
3.3
5
76/8
50/5
21/2
76/8
50/5
28/3
21/2
17/2
220
220
220
220
220
220
220
220
220
220
220
220
220
73
73
73
74
77
74
74
73
73
77
73
77
71
12
3.3
5
5 (4.5-5.5)
5 (4.5-5.5)
9
5 (4.5-5.5)
12
15
3.3
5
5 (4.5-5.5)
12 (10.8-13.2)
12 (10.8-13.2)
12 (10.8-13.2)
12 (10.8-13.2)
24 (21.6-26.4)
76/8
50/5
28/3
21/2
50/5
9
12
5
Efficiency
QT8A_0505S1.5UP
QT8A_0505S1.5UP
QT8A_1205S1.5UP
QT8A_1205S1.5UP
Page 2 of 4
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
QT8A_1.5UP – Rev. 2018-1.2
Specifications subject to change without notice.
QT8A_1.5UP Series
0.25W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated
Typical characteristics
Tolerance envelope curve
Temperature derating curve
Typical application
If it is required to further reduce input and output ripple, a filter capaci-
tor can be connected to the input and output terminals, see Fig. 1.
modules running well, the recommended capacitive load values as
shown in Table 1.
The simplest device for output voltage regulation, over-voltage and over-
current protection is a linear voltage regulator with overheat protection
that is connected to the input or output end in series (see Fig. 2).
Moreover, choosing suitable filter capacitor is very important, start-up
problems may be caused by too large capacitance. To ensured the
Figure 1
Figure 2
Vin (VDC)
Cin (µF)
Vo (VDC)
Cout (µF)
3.3/5
12
4.7
2.2
1
3.3/5
12
10
2.2
1
24
15
EMC typical recommended circuit
Input voltage (VDC)
3.3/5/12/24
4.7µF /50V
EMI
EMI
EMI
C1
C2
Refer to the Cout in Fig. 1
6.8µH
LDM
Output load requirements
In order to ensure the converter can work reliably with high efficiency,
the minimum load should not less than 10ꢀ rated load when it is used.
If the needed power is indeed small, please parallel a resistor on the
output side (the sum of the efficient power and resistor consumption
power is not less than 10ꢀ).
Page 3 of 4
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
QT8A_1.5UP – Rev. 2018-1.2
Specifications subject to change without notice.
QT8A_1.5UP Series
0.25W - Single Output DC-DC Converter - Fixed Input - Isolated & Unregulated
Mechanical dimensions
Note:
Unit: mm[inch]
Pin section tolerances: 0.10mm [ 0.004inch]
General tolerances: 0.25mm [ 0.010inch]
Page 4 of 4
QT8A_1.5UP – Rev. 2018-1.2
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
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