BQA3-48S1R [BOTHHAND]
Isolated DC-DC Converters;
| 型号： | BQA3-48S1R |
| 厂家： | 
BOTHHAND USA, LP. |
| 描述： | Isolated DC-DC Converters |
| 文件： | 总7页 (文件大小：809K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
Features
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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
Over Voltage Protection: Clamp Mode
UL94V-0 Package Material
Lead Free Design, RoHS Compliant
24pin DIP Package with Industry-Standard Footprint
Customer Design Available
The BQA3R Series are isolated 3W DC/DC converters. Designed
with highly efficiency, allow the operating temperature range of
these units to be -40°C to +85°C in a 24 pin DIP package with
industry-standard footprint. Further features include wide 2 : 1
input voltage range, short-circuit protection and over voltage
protection.
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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 All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Output
Voltage
(V)
Output Current (mA)
Input Current (mA)
No Load Full Load
46 552
Model
Number
Input Voltage
Range
Eff .(2) Capacitive
Load, max.
(%)
Min. Load(1)
Full. Load
(3) (uF)
3.3
5
0
0
0
0
0
0
0
600
500
250
200
250
125
100
76
81
82
83
82
82
4000
4000
4000
4000
1000
1000
BQA3-05S0R
BQA3-05S1R
BQA3-05S2R
BQA3-05S3R
BQA3-05D1R
BQA3-05D2R
BQA3-05D3R
BQA3-12S0R
BQA3-12S1R
BQA3-12S2R
BQA3-12S3R
BQA3-12D1R
BQA3-12D2R
BQA3-12D3R
BQA3-24S0R
BQA3-24S1R
BQA3-24S2R
BQA3-24S3R
BQA3-24D1R
BQA3-24D2R
BQA3-24D3R
BQA3-48S0R
BQA3-48S1R
BQA3-48S2R
BQA3-48S3R
BQA3-48D1R
BQA3-48D2R
BQA3-48D3R
44
62
67
55
83
646
769
760
638
766
12
15
5
4.5~9V
Nominal:5V
12
15
89
26
24
35
36
29
44
59
20
23
26
26
22
30
40
10
9
765
223
263
314
311
262
313
317
112
133
157
156
133
159
160
57
82
78
83
84
84
83
84
83
78
82
84
84
83
83
82
76
81
83
83
82
82
82
1000
4000
4000
4000
4000
1000
1000
1000
4000
4000
4000
4000
1000
1000
1000
4000
4000
4000
4000
1000
1000
1000
3.3
5
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
12
15
5
9~18V
Nominal:12V
12
15
3.3
5
12
15
5
18~36V
Nominal:24V
12
15
3.3
5
67
12
15
5
11
12
10
14
18
79
36~75V
Nominal:48V
79
67
12
15
79
80
Rev:20130813A
Page 1 of 7
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Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
Input Specifications
Input Voltage
5V nominal input
12V nominal input
24V nominal input
48V nominal input
4.5-9V
9-18V
18-36V
36-75V
Pi Type
10V
Input filter
5V input
12V input
25V
Input surge voltage
(100ms max.)
24V input
50V
48V input
100V
Input reflected ripple current
Start up time
Nominal Vin and full load
100mAp-p max.
Nominal Vin and constant resistive load
100ms max.
Environmental Specifications
Operating ambient temperature
Maximum case temperature
-40°C to +85°C (with derating)
+90°C
Storage temperature range
Relative humidity
-40°C to +125°C
5% to 95% RH
Temperature coefficient
0.02% / °C max.
Output Specifications
Output power
3 Watts max.
1%
Voltage accuracy
Minimum load
Full load and nominal Vin
LL to HL at full load
See table
0.5%
Line Regulation
Load Regulation
Ripple and Noise
25% load to full load
Balanced load
Single
Dual
0.5%
0.5%
Unbalanced load 25% to 100% full load
20MHz bandwidth
3.3Vout models
3%
60mVp-p max.
3.9V
Over voltage protection
(Zener Diode Clamp)
5Vout models
6.2V
12Vout models
15V
15Vout models
18V
Capacitive load
See table
110% typ.
Over load protection
% of full load at nominal input
Short circuit protection
Transient response settling time
Transient response over shoot
Continuous, automatic recovery
46ms max.
50% load step change
di/dt=0.8A/ꢀs
≤
5% of Vo
Rev:20130813A
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Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
General Specifications
Efficiency
Nominal input
Input to output
500VDC
See table
1500VDC
Isolation voltage
10 9 Ohms min.
280pF typ.
Isolation resistance
Isolation capacitance
Switching frequency
Reliability, calculated MTBF
150kHz typ..
1.1 × 10 6 Hrs
Physical Specifications
Case material
Non-conductive black plastic
Non-conductive black plastic
Silicon rubber (UL94V-0)
1.25 × 0.80 × 0.40 Inches
(31.8 × 20.3 × 10.2 mm)
12.8g (0.45oz) (typical)
Base material
Potting material
Dimensions
Weight
BQA3R Series
Power Derating Curve(4)
120
100
80
60
40
20
0
71
-40
-20
0
20
40
60
80
100
120
Ambient Temp.TA (℃)
BQA3-48S1R
Input voltage vs. Efficiency
BQA3-48S1R
Output Current vs. Efficiency
Input voltage (V)
Output Current (A)
Rev:20130813A
Page 3 of 7
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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 Assignment
Pin
2
Single
-Vin
Dual
-Vin
3
-Vin
-Vin
9
No pin
No con.
+Vout
-Vout
+Vin
Common
-Vout
11
14
16
22
23
+Vout
Common
+Vin
+Vin
+Vin
Unit: mm [inch]
Tolerance:±0.5[0.02]
Specifications subject to change without notice.
Rev:20130813A
Page 4 of 7
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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
Load
V
V
◎DC Power Supply: It offers a wide voltage and current range precisely.
◎Current meter (A): Accuracyꢁ 200μA ~ 200mA 4 ranges+(0.2% rdg + 2 digits)
2000mA ~ 20A 2 ranges+(0.3% rdg + 2 digits).
◎Voltage meter (V): Accuracyꢁ +(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
12V nominal input
24V nominal input
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ꢁ
ꢁ
4.5~5.5V
10.8~13.2V
21.6~26.4V
Wide input voltage range 2:1
5V nominal input
12V nominal input
24V nominal input
48V nominal input
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ꢁ
ꢁ
ꢁ
4.5~9V
9~18V
18~36V
36~75V
Wide input voltage range 4:1 (W)
24V nominal input
48V nominal input
ꢁ
ꢁ
9~36V
18~75V
2. Input power :
Pin = Vin x Iin
Vin：Input voltage
Iin：Input current
3. Output power :
Pout = Vout x Iout
Vout：Output voltage
Iout：Output current
4. Efficiency :
Pout
Pin
x100%
Efficiency =
Pout: Output power
Pin: Input power
5. Voltage accuracy:
x100%
│Vout-Vout(nominal)│
Vout
Vout：Output voltage
Vout(nominal)：Nominal output voltage
Rev:20130813A
Page 5 of 7
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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.
ΔVout
Line regulation=
ΔVin
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 :
│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
Rev:20130813A
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Isolated DC-DC Converters
BQA3R Series -- 3 Watt
Bothhand USA
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
Oscilloscope
Load
Co
converter
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
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.
Rev:20130813A
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