DQA1P Series 1 Watt
isolated DC-DC Converters
Features
4pin SIP Package with Industry-Standard Footprint
Input / Output Isolation Voltage: 1.5kVDC
High Efficiency
Lead Free Design, RoHS Compliant
Operating temperature: -40°C to +105°C
IEC/EN 62368-1 Safety Approval
Applications
These converters are well suitable for battery operated
equipment, measurement equipment, telecom, wireless
network, Industry control system, everywhere where
isolated, tightly regulated voltages and compact size are
required.
Technical Specification All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Output
Voltage
Output Current (mA)
(V)
Full Load
3.3
300
5
200
DQA1-03SAP
9
DQA1-05S0P
DQA1-05S1P
Model
Number
Input Voltage
Range(V)
DQA1-03S0P
DQA1-03S1P
DQA1-05SAP
DQA1-05S2P
2.97-3.63
Nominal:3.3
4.5-5.5
Nominal:5
Input Current (mA) Typ.
Eff .(%) (2)
Typ.
Capacitive
Load, max.
(3)
(uF)
405
74
68
404
75
47
110
380
79
33
3.3
300
264
75
68
5
200
260
77
47
9
110
248
80
33
(1)
No Load
35
28
Full Load
12
83
246
81
22
DQA1-05S3P
15
67
246
81
22
DQA1-05S5P
24
42
246
81
10
DQA1-09S0P
3.3
303
158
70
68
5
200
144
77
47
137
80
33
DQA1-09S1P
DQA1-09SAP
8.1-9.9
Nominal:9
19
9
110
DQA1-09S2P
12
83
136
81
22
DQA1-09S3P
15
67
138
81
22
DQA1-12S0P
3.3
300
109
76
68
DQA1-12S1P
5
200
107
78
47
9
110
107
78
33
DQA1-12SAP
DQA1-12S2P
10.8-13.2
Nominal:12
17
12
83
104
80
22
DQA1-12S3P
15
67
104
80
22
DQA1-12S5P
24
42
105
80
10
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A1 (21/01)
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DQA1P Series 1 Watt
isolated DC-DC Converters
Model
Number
Input Voltage
Range(V)
DQA1-15S0P
DQA1-15S1P
DQA1-15SAP
13.5-16.5
Nominal:15
Output
Voltage
Output Current (mA)
(V)
Full Load
3.3
300
5
200
(1)
Eff .(%) (2)
Typ.
Capacitive
Load, max.
(3)
(uF)
87
76
68
85
78
47
85
78
33
Input Current (mA) Typ.
No Load
15
Full Load
9
110
DQA1-15S2P
12
83
83
80
22
DQA1-15S3P
15
67
83
80
22
DQA1-24S0P
3.3
300
54
77
68
DQA1-24S1P
5
200
53
79
47
9
110
52
80
33
DQA1-24SAP
DQA1-24S2P
21.6-26.4
Nominal:24
8
12
83
51
81
22
DQA1-24S3P
15
67
51
81
22
DQA1-24S5P
24
42
51
78
22
Input Specifications
3.3V nominal input
2.97-3.63V
5V nominal input
4.5-5.5V
9V nominal input
8.1-9.9V
12V nominal input
10.8-13.2V
15V nominal input
24V nominal input
13.5-16.5V
21.6-26.4V
Capacitor
Input filter
Environmental Specifications
Operating ambient temperature
-40°C to +105°C
Maximum case temperature
+125°C
Storage temperature range
-55°C to +125°C
Relative humidity
95% RH max.
Output Specifications
Output power
1Watts max.
Voltage accuracy
Nominal Vin and full load
3.3Vdc
5Vdc
9Vdc
12Vdc
15Vdc
24Vdc
Voltage balance
output
Minimum load
Line regulation
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3.135-3.399V
4.75-5.15V
8.73-9.18V
11.64-12.24V
14.55-15.30V
23.52-24.36V
±1% max.
10% load of full load
For Vin change of 1%
±1.2% Typ.
A1 (21/01)
Page 2 of 7
DQA1P Series 1 Watt
isolated DC-DC Converters
Load regulation
Nominal Vin and 10%-100% load
3.3Vdc
5Vdc
9Vdc
12Vdc
15Vdc
24Vdc
Ripple and Noise (20MHz Bandwidth)
Maximum capacitive load
Output short circuit protection
DQA1-03SXP/DQA1-24SXP
Other models
Temperature coefficient
15% Typ.
13% Typ.
9% Typ.
8% Typ.
7% Typ.
6% Typ.
50mVp-p Typ.
120mVp-p Max.
See table
3S Max.
Continuous, Automatic recovery
±0.03%/°C Typ.
General Specifications
Efficiency
Nominal input and full load
Isolation voltage
Input to output
Isolation resistance
500VDC
Isolation capacitance
Switching frequency
Reliability, calculated MTBF
See table
1500VDC (60 second)
1000MΩ min.
30pF typ.
150kHz typ.
300kHz max.
2×10
6
Hrs
Physical Specifications
Case material
Plastic (UL94 V-0)
Potting material
Epoxy (UL94 V-0)
Dimensions
Weight
11.6 × 10.1 × 6.0 mm
1.5g Typ.
Note
1. Io below this value will not damage these converters, however, they may not meet all listed specifications.
2. Typical value, tested at nominal input and full load.
3. For each output.
4. Specifications subject to change without notice.
5. This series of products do not support CC mode, CR mode is recommended.
6. In case of long input lines or hot plug-in requirements, we recommended to use an external low ESR capacitor
(22uF) near to the converter’s input pins.
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A1 (21/01)
Page 3 of 7
DQA1P Series 1 Watt
isolated DC-DC Converters
Power Derating Curve
Power Derating Curve
Output Power (%)
120
100
80
60
40
20
0
-40
-20
0
20
40
60
85
80
105
100
120
Ambient Temp.TA ()
Mechanical Dimensions
Pin Assignment
Pin
Single
1
-Vin
2
+Vin
3
-Vout
4
+Vout
Unit: mm (inch)
Pin section tolerances:±0.1(±0.004)
General tolerances:±0.5(±0.02)
Test Configurations
All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
A
A
DC
Power Supply
V
DC/DC
converter
V
Load
◎DC Power Supply: It offers a wide voltage and current range precisely.
◎Current meter (A): Accuracy 200μA ~ 200mA 4 ranges+(0.2% rdg + 2 digits)
2000mA ~ 20A 2 ranges+(0.3% rdg + 2 digits).
◎Voltage meter (V): Accuracy +(0.03% rdg + 4 digits).
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A1 (21/01)
Page 4 of 7
DQA1P Series 1 Watt
isolated DC-DC Converters
◎Load: At full load.
◎Wires: The resistance of the wires must be small.
1. Input voltage range: Narrow input voltage range(±10%)、wide input voltage range (2:1 and 4:1)。
EX: Narrow input voltage range(±10%)
5V nominal input
4.5~5.5V
12V nominal input
10.8~13.2V
24V nominal input
21.6~26.4V
Wide input voltage range 2:1
5V nominal input
4.5~9V
12V nominal input
9~18V
24V nominal input
18~36V
48V nominal input
36~75V
Wide input voltage range 4:1 (W)
24V nominal input
9~36V
48V nominal input
18~75V
2. Input power :
Pin = Vin x Iin
Vin:Input voltage
Iin:Input current
Pout = Vout x Iout
Vout:Output voltage
Iout:Output current
3. Output power :
4. Efficiency :
Efficiency =
Pout
Pin
x100%
Pout: Output power
Pin: Input power
5. Voltage accuracy:
│Vout-Vout(nominal)│
Vout
x100%
Vout:Output voltage
Vout(nominal):Nominal output voltage
6. Line regulation:
Narrow input voltage range(±10%)and unregulated output voltage series.
│
│
Line regulation=
Ä Vout
Ä Vin
Ä Vout = Vout(+10%)-Vout(-10%) x100%
Vout
Vout(+10%):Output voltage at Vin = 1.1xVin(nominal)&full load
Vout(-10%):Output voltage at Vin = 0.9xVin(nominal)&full load
Vout:Output voltage at Vin = Vin(nominal)&full load
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A1 (21/01)
Page 5 of 7
DQA1P Series 1 Watt
isolated DC-DC Converters
Ä Vin = Vin(+10%)-Vin(-10%) x100%
Vin(nominal)
Vin(+10%):Input voltage = 1.1xVin(nominal)
Vin(-10%):Input voltage = 0.9xVin(nominal)
Vin(nominal):Nominal Input voltage
7. Load regulation :
│Vout(FL)-Vout(NL)│ x100%
Vout(FL)
Vout(FL): Output voltage at full load
Vout(NL): Output voltage at 25% full load or 10% full load
8. Ripple and Noise: as shown below. The bandwidth is 0-20MHz.
Ripple&Noise
Noise
Ripple
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
converter
Co
Oscilloscope
Load
Copper strip
Co: usually 0.47uF.
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A1 (21/01)
Page 6 of 7
DQA1P Series 1 Watt
isolated DC-DC Converters
9. Temperature derating curve: The DC-DC converter will operate over a wider temperature range if less power
is drawn from the output and the device is already running. The temperature derating curve shows the operating
power-temperature range. As shown below.
Output Power (%)
120
100
80
60
40
20
0
-40
-20
0
20
40
60
85
80
105
100
120
Ambient Temp.TA (℃)
10. Switching frequency: The nominal operating frequency of the DC-DC converters.
11. Input to output isolation: The dielectric breakdown strength test between input and output circuits. This is the
isolation voltage the device is capable of withstanding for a specified time, usually 1 second or 1 minute.
12. Input souce impedance: The power module should be connected to low ac-impedance input souce.
Highly inductive souce impedances can affect the stability of the power module. In applications where power is
supplied over long lines and output loading is high , it maybe 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 commended to use
a good quality low Equivalent Series Resistance ( ESR < 0.1Ω at 100KHz ) capacitor of a 22uF for the power
module.
DC
Power Supply
Cin
DC/DC
converter
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Load
A1 (21/01)
Page 7 of 7
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