BRA15W Series 20130813A

Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
Features
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
Description
Shielded Metal Case with Insulated Baseplate
The BRA15W Series are isolated 15W DC/DC converters.
Designed with highly efficiency, allow the operating
Lead Free Design, RoHS Compliant
temperature range of these units to be -40°C to +85°C (with
6 pin DIP Package with Industry-Standard Footprint
derating) in a 6 pin DIP package with industry-standard
Standard 1”X1” Package
footprint. Further features include wide 4 : 1 input voltage
range, remote on/off control, trimmable output, short-circuit
Customer Design Available
protection and over voltage protection.
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
All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Output
Voltage
(V)
Output Current (mA)
Min. Load
(1)
Input Current (mA)
Eff .
(%)
Capacitive
(3)
Load, max.
(uF)
(2)
Full. Load
No Load
Full Load
4000
59
671
86
12000
3000
53
744
88
6000
BRA15-24S0W
3.3
BRA15-24S1W
5.0
BRA15-24S2W
12
44
1300
56
783
87
2000
15
0
1000
59
753
87
1200
±1500
49
772
85
±3000
BRA15-24S3W
9~36V
Nominal:24V
0
0
BRA15-24D1W
±5
BRA15-24D2W
±12
0
±625
58
753
87
±1000
BRA15-24D3W
±15
20
±500
60
753
87
±600
BRA15-48S0W
3.3
0
4000
27
335
86
12000
BRA15-48S1W
5.0
0
3000
24
368
89
6000
BRA15-48S2W
12
0
1300
28
382
89
2000
15
0
1000
29
368
89
1200
BRA15-48S3W
18~75V
Nominal:48V
33
BRA15-48D1W
±5
0
±1500
23
386
85
±3000
BRA15-48D2W
±12
0
±625
28
372
88
±1000
BRA15-48D3W
±15
0
±500
30
368
89
±600
[email protected]
www.bothhandusa.com
Rev:20130813A
Page 1 of 7
Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
Input Specifications
Input Voltage
24V nominal input
9-36V
48V nominal input
18-75V
Input filter
Pi Type
Input surge voltage
24V nominal input
50V
(100ms max.)
48V nominal input
100V
Input reflected ripple current
Nominal Vin and full load
Start up time
Nominal Vin and constant resistive load
Remote ON/OFF
60mAp-p max.
72ms typ.
Open or 3.5V<Vr<12V
Converter: ON
Short
Converter: OFF
(4)
or 0V<Vr<0.7V
Sourcing current of remote control pin
Nominal Vin
<0.2 mA
Idle input current (at Remote OFF state)
Nominal Vin
<12 mA
Environmental Specifications
-40°C to +85°C (with derating)
Operating ambient temperature
+105°C max.
Maximum case temperature
-55°C to +125°C
Storage temperature range
95% RH max.
Relative humidity
±0.02% / °C max.
Temperature coefficient
Output Specifications
15 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
±1.0%
Single
±1.0%
Dual
±0.5%
Unbalanced load 25% to 100% full load
Ripple and Noise
±5%
20MHz bandwidth
80mVp-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
Short circuit protection
110% min.
Hiccup, continuous (Auto Recovery)
Transient response settling time
50% load step change
Transient response over shoot
di/dt=0.8A/µs
560µs max.
≤ ±5% of Vo
(≤ ±6% for 3.3Vout)
[email protected]
www.bothhandusa.com
Rev:20130813A
Page 2 of 7
Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
General Specifications
Efficiency
Nominal input
Isolation voltage
Input to output
Isolation resistance
See table
1500VDC
9
500VDC
10 Ohms min.
Isolation capacitance
550pF typ.
Switching frequency
330kHz typ.
6
Reliability, calculated MTBF
1.58 × 10 Hrs
Physical Specifications
Case material
Nickel-coated copper
Base material
FR4 PCB
Silicon rubber (UL94V-0)
Potting material
1.0 × 1.0 × 0.4 Inch
Dimensions
(25.4 × 25.4 × 10.2 mm)
Weight
19.2g (0.68oz) typ.
BRA15W Series
Power Derating Curve(5)
Output Power (%)
120
100
80
60
40
20
0
-40
-20
0
20
63
60
40
80
100
120
BRA15-48S1W
BRA15-48S1W
Input voltage vs. Efficiency
Output Current vs. Efficiency
95
90
85
80
75
70
65
60
55
Efficiency (%)
Efficiency (%)
Ambient Temp.TA (℃)
Input voltage (V)
[email protected]
Output Current (A)
www.bothhandusa.com
Rev:20130813A
Page 3 of 7
3.00
75
2.70
66
2.40
60
2.10
54
1.80
48
1.50
42
1.20
36
0.90
30
0.60
24
0.30
18
95
90
85
80
75
70
65
60
55
50
45
Bothhand USA
BRA15-48S1W
Isolated DC-DC Converters
BRA15W Series -- 15 Watt
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
1
2
3
4
5
6
Pin Assignment
Single
Dual
+Vin
+Vin
-Vin
-Vin
+Vout
+Vout
Trim
Common
-Vout
-Vout
Remote On/Off
(optional)
Unit: mm [inch]
Tolerance:±0.5[0.02]
Specifications subject to change without noticed.
[email protected]
www.bothhandusa.com
Rev:20130813A
Page 4 of 7
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
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
[email protected]
x100%
Vout:Output voltage
Vout(nominal):Nominal output voltage
www.bothhandusa.com
Rev:20130813A
Page 5 of 7
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.
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
[email protected]
www.bothhandusa.com
Rev:20130813A
Page 6 of 7
Isolated DC-DC Converters
BRA15W Series -- 15 Watt
Bothhand USA
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
converter
Co
Load
Oscilloscope
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.
Output Power (%)
120
100
80
60
40
20
0
-40
-20
0
20
40
63
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.
[email protected]
www.bothhandusa.com
Rev:20130813A
Page 7 of 7
Similar pages