Bothhand BQA3R-SERIES Isolated dc-dc converter Datasheet

Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
Features
Wide 2 : 1 Input Voltage Range(4.5~9V,9~18V,18~36V,36~75V)
Input / Output Isolation Voltage: 1.5K VDC
Extended Operating Temperature Range: -40°C to +85°C
Output Short Circuit Protection:
Description
Continuous & Auto Recovery
The BQA3R Series are isolated 3W DC/DC converters. Designed
Over Voltage Protection: Clamp Mode
with highly efficiency, allow the operating temperature range of
UL94V-0 Package Material
these units to be -40°C to +85°C in a 24 pin DIP package with
Lead Free Design, RoHS Compliant
industry-standard footprint. Further features include wide 2 : 1
24pin DIP Package with Industry-Standard Footprint input voltage range, short-circuit protection and over voltage
protection.
Customer Design Available
Safety Standard / Approval : IEC / EN 60950-1
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
Model
Number
Input Voltage
Range
BQA3-05S0R
BQA3-05S1R
BQA3-05S2R
BQA3-05S3R
4.5~9V
Nominal:5V
BQA3-05D1R
BQA3-05D2R
BQA3-05D3R
BQA3-12S0R
BQA3-12S1R
BQA3-12S2R
BQA3-12S3R
9~18V
Nominal:12V
BQA3-12D1R
BQA3-12D2R
BQA3-12D3R
BQA3-24S0R
BQA3-24S1R
BQA3-24S2R
BQA3-24S3R
18~36V
Nominal:24V
BQA3-24D1R
BQA3-24D2R
BQA3-24D3R
BQA3-48S0R
BQA3-48S1R
BQA3-48S2R
BQA3-48S3R
36~75V
Nominal:48V
BQA3-48D1R
BQA3-48D2R
BQA3-48D3R
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All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Output
(2) Capacitive
Output Current (mA)
Input Current (mA)
Eff .
Load, max.
Voltage
(1)
(%)
(3)
Min. Load
Full. Load
No Load
Full Load
(V)
(uF)
3.3
0
600
76
46
552
4000
5
0
500
81
44
646
4000
12
0
250
82
62
769
4000
15
0
200
83
67
760
4000
±5
0
±250
82
55
638
1000
±12
0
±125
82
83
766
1000
±15
0
±100
82
89
765
1000
3.3
5
12
15
±5
±12
±15
3.3
5
12
15
±5
±12
±15
3.3
5
12
15
±5
±12
±15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
30
0
0
0
0
0
0
600
500
250
200
±250
±125
±100
600
500
250
200
±250
±125
±100
600
500
250
200
±250
±125
±100
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78
4000
263
83
4000
314
84
4000
36
311
84
4000
29
262
83
1000
44
313
84
1000
59
317
83
1000
20
112
78
4000
23
133
82
4000
26
157
84
4000
26
156
84
4000
22
133
83
1000
26
223
24
35
30
159
83
1000
40
160
82
1000
10
57
76
4000
9
67
81
4000
11
79
83
4000
12
79
83
4000
10
67
82
1000
14
79
82
1000
18
80
82
1000
Rev:20130813A
Page 1 of 7
Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
Input Specifications
Input Voltage
5V nominal input
4.5-9V
12V nominal input
9-18V
24V nominal input
18-36V
48V nominal input
36-75V
Pi Type
Input filter
5V input
10V
12V input
25V
Input surge voltage
24V input
50V
(100ms max.)
48V input
100V
Input reflected ripple current
Nominal Vin and full load
Start up time
Nominal Vin and constant resistive load
100mAp-p max.
100ms max.
Environmental Specifications
-40°C to +85°C (with derating)
Operating ambient temperature
+90°C
Maximum case temperature
-40°C to +125°C
Storage temperature range
5% to 95% RH
Relative humidity
±0.02% / °C max.
Temperature coefficient
Output Specifications
3 Watts max.
Output power
Voltage accuracy
Full load and nominal Vin
±1%
See table
Minimum load
Line Regulation
LL to HL at full load
25% load to full load
Load Regulation
Balanced load
±0.5%
Single
±0.5%
Dual
±0.5%
Unbalanced load 25% to 100% full load
Ripple and Noise
±3%
20MHz bandwidth
60mVp-p max.
3.3Vout models
3.9V
Over voltage protection
5Vout models
6.2V
(Zener Diode Clamp)
12Vout models
15V
15Vout models
18V
See table
Capacitive load
Over load protection
% of full load at nominal input
Continuous, automatic recovery
Short circuit protection
Transient response settling time
50% load step change
Transient response over shoot
di/dt=0.8A/µs
[email protected]
110% typ.
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46ms max.
≤ ±5% of Vo
Rev:20130813A
Page 2 of 7
Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
General Specifications
Efficiency
Nominal input
See table
Isolation voltage
Input to output
1500VDC
Isolation resistance
500VDC
9
10 Ohms min.
Isolation capacitance
280pF typ.
Switching frequency
150kHz typ..
6
Reliability, calculated MTBF
1.1 × 10 Hrs
Physical Specifications
Case material
Non-conductive black plastic
Base material
Non-conductive black plastic
Silicon rubber (UL94V-0)
Potting material
1.25 × 0.80 × 0.40 Inches
Dimensions
(31.8 × 20.3 × 10.2 mm)
Weight
12.8g (0.45oz) (typical)
BQA3R Series
Power Derating Curve
(4)
Output Power (%)
120
100
80
60
40
20
0
-40
-20
0
20
40
60
71
80
100
120
Ambient Temp.TA (℃)
BQA3-48S1R
Output Current vs. Efficiency
Efficiency (%)
Efficiency (%)
BQA3-48S1R
Input voltage vs. Efficiency
Input voltage (V)
[email protected]
Output Current (A)
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Rev:20130813A
Page 3 of 7
Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
BQA3-48S1R
BQA3-48S1R
Transient Response at 50%~100% Max Load
Loop Gain & Phase at Vi=48V,Full Load
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. Based on BQA3-48S1R.
Mechanical Dimensions
Pin
2
3
9
11
14
16
22
23
Pin Assignment
Single
Dual
-Vin
-Vin
-Vin
-Vin
No pin
Common
No con.
-Vout
+Vout
+Vout
-Vout
Common
+Vin
+Vin
+Vin
+Vin
Unit: mm [inch]
Tolerance:±0.5[0.02]
Specifications subject to change without notice.
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Rev:20130813A
Page 4 of 7
Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
Test Configurations
All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
A
A
DC
Power Supply
DC/DC
converter
V
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).
◎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 12V nominal input 24V nominal input 48V nominal input 4.5~9V
9~18V
18~36V
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
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x100%
Vout:Output voltage
Vout(nominal):Nominal output voltage
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Rev:20130813A
Page 5 of 7
Isolated DC-DC Converters
BQA3R Series -- 3 Watt
││││
││││
Bothhand USA
6. Line regulation: (1) Wide input voltage range and regulated output voltage series.
│Vout(LL)-Vout(HL)│
│
Vout(LL)
LL: Low Line input voltage
HL: High Line input voltage
x100%
(2) Narrow input voltage range(±10%)and unregulated output voltage series.
Line regulation=
Δ Vout
Δ Vin
ΔVout = 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
ΔVin = 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 :
│ x100%
│Vout(FL)-Vout(NL)│
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
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Rev:20130813A
Page 6 of 7
Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
converter
Co
Oscilloscope
Load
Copper strip
Co: usually 0.47uF.
9. Temperature derating curve: The DC-DC converter will operate over a wider temperature range if less power is
Output Power (%)
drawn from the output and the device is already running. The temperature derating curve shows the operating
power-temperature range. As shown below.
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.
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Rev:20130813A
Page 7 of 7
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