BRA15-24S1W [BOTHHAND]
Isolated DC-DC Converters;
| 型号： | BRA15-24S1W |
| 厂家： | 
BOTHHAND USA, LP. |
| 描述： | Isolated DC-DC Converters |
| 文件： | 总7页 (文件大小：720K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
Features
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Wide 4 : 1 Input Voltage Range(9~36V,18~75V)
High Efficiency up to 89%
Remote On/Off
Input / Output Isolation Voltage: 1.5K VDC
Extended Operating Temperature Range: -40°C to+85°C
Output Short Circuit Protection:
Hiccup, continuous & Auto Recovery
Over Voltage Protection: Clamp Mode
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Description
Shielded Metal Case with Insulated Baseplate
Lead Free Design, RoHS Compliant
6 pin DIP Package with Industry-Standard Footprint
Standard 1”X1” Package
The BRA15W Series are isolated 15W DC/DC converters.
Designed with highly efficiency, allow the operating
temperature range of these units to be -40°C to +85°C (with
derating) in a 6 pin DIP package with industry-standard
footprint. Further features include wide 4 : 1 input voltage
range, remote on/off control, trimmable output, 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 All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Output
Voltage
(V)
Capacitive
Load, max. (3)
(uF)
Eff .(2)
(%)
Output Current (mA)
Min. Load(1)
Input Current (mA)
Input Voltage
Range
Model
Number
Full. Load
No Load
Full Load
BRA15-24S0W
BRA15-24S1W
BRA15-24S2W
BRA15-24S3W
BRA15-24D1W
BRA15-24D2W
BRA15-24D3W
BRA15-48S0W
BRA15-48S1W
BRA15-48S2W
BRA15-48S3W
BRA15-48D1W
BRA15-48D2W
BRA15-48D3W
3.3
5.0
12
15
5
59
53
56
59
49
58
60
27
24
28
29
23
28
30
0
0
4000
3000
1300
1000
1500
625
671
744
783
753
772
753
753
335
368
382
368
386
372
368
86
88
87
87
85
87
87
86
89
89
89
85
88
89
12000
6000
2000
1200
3000
1000
600
44
0
9~36V
Nominal:24V
33
0
12
15
3.3
5.0
12
15
5
20
0
500
4000
3000
1300
1000
1500
625
12000
6000
2000
1200
3000
1000
600
0
0
18~75V
Nominal:48V
0
0
12
15
0
0
500
Rev:20130813A
Page 1 of 7
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Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
Input Specifications
Input Voltage
24V nominal input
48V nominal input
9-36V
18-75V
Input filter
Pi Type
Input surge voltage
(100ms max.)
24V nominal input
50V
48V nominal input
100V
Input reflected ripple current
Start up time
Nominal Vin and full load
60mAp-p max.
Nominal Vin and constant resistive load
Converter: ON
72ms typ.
Open or 3.5V＜Vr＜12V
Short (4) or 0V＜Vr＜0.7V
＜0.2 mA
Remote ON/OFF
Converter: OFF
Sourcing current of remote control pin
Nominal Vin
＜12 mA
Idle input current (at Remote OFF state) Nominal Vin
Environmental Specifications
Operating ambient temperature
Maximum case temperature
Storage temperature range
Relative humidity
-40°C to +85°C (with derating)
+105°C max.
-55°C to +125°C
95% RH max.
Temperature coefficient
0.02% / °C max.
Output Specifications
Output power
15 Watts max.
Voltage accuracy
Minimum load
Line regulation
Full load and nominal Vin
1%
See table
LL to HL at full load
25% load to full load
Balanced load
1.0%
Single
Dual
1.0%
Load Regulation
Ripple and Noise
0.5%
Unbalanced load 25% to 100% full load
20MHz bandwidth
3.3Vout models
5%
80mVp-p max.
3.9V
Over voltage protection
(Zener Diode Clamp)
5Vout models
6.2V
12Vout models
15V
15Vout models
18V
See table
Capacitive load
Over load protection
% of full load at nominal input
110% min.
Short circuit protection
Transient response settling time
Transient response over shoot
Hiccup, continuous (Auto Recovery)
560ꢀs max.
50% load step change
di/dt=0.8A/ꢀs
≤
5% of Vo
(≤ 6% for 3.3Vout)
Rev:20130813A
Page 2 of 7
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Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
General Specifications
Efficiency
Nominal input
Input to output
500VDC
See table
1500VDC
Isolation voltage
10 9 Ohms min.
550pF typ.
Isolation resistance
Isolation capacitance
Switching frequency
Reliability, calculated MTBF
330kHz typ.
1.58 × 10 6 Hrs
Physical Specifications
Case material
Nickel-coated copper
FR4 PCB
Base material
Potting material
Silicon rubber (UL94V-0)
1.0 × 1.0 × 0.4 Inch
(25.4 × 25.4 × 10.2 mm)
19.2g (0.68oz) typ.
Dimensions
Weight
BRA15W Series
Power Derating Curve(5)
120
00
80
60
40
20
0
63
-40
-20
0
20
40
60
80
100
120
Ambient Temp.TA (℃)
BRA15-48S1W
Input voltage vs. Efficiency
BRA15-48S1W
Output Current vs. Efficiency
95
90
85
80
75
70
65
60
55
50
45
95
90
85
80
75
70
65
60
55
18
24
30
36
42
48
54
60
66
75
Input voltage (V)
Output Current (A)
Rev:20130813A
Page 3 of 7
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Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
BRA15-48S1W
BRA15-48S1W
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. Short to -Vin (Pin 2).
Mechanical Dimensions
Pin Assignment
Pin
1
Single
+Vin
Dual
+Vin
2
-Vin
-Vin
3
+Vout
Trim
+Vout
Common
-Vout
4
5
-Vout
Remote On/Off
(optional)
6
Unit: mm [inch]
Tolerance:±0.5[0.02]
Specifications subject to change without noticed.
Rev:20130813A
Page 4 of 7
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Isolated DC-DC Converters
BRA15W Series -- 15 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
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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
BRA15W Series -- 15 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
Page 6 of 7
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Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
Co
Oscilloscope
Load
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.
120
100
80
60
40
20
0
63
-40
-20
0
20
40
60
80
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.
Rev:20130813A
Page 7 of 7
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