BWC60 Series 20130814A

DC-DC Converters
BWC60 Series -- 60Watt
Bothhand USA
Features
Wide 2 : 1 Input Voltage Range(18~36V,36~75V)
Remote On/Off
Input / Output Isolation Voltage: 1.5K Vdc
High Efficiency: up to 91%
Output Short Circuit Protection:
Hiccup & Auto Recovery
Over Voltage Protection: Clamp Mode
Over Temperature Protection
Shielded Metal Case with Insulated Baseplate
Lead Free Design, RoHS Compliant
Adjustable Output Voltage
Customer Design Available
Option Heat Sink
Safety Standard / Approval : IEC / EN 60950-1
Technical Specification
Model
Number
Input Voltage
Range
BWC60-24S0
Description
The BWC60 Series are isolated 60W DC/DC converters.
Designed with highly efficiency, allow the operating
temperature range of these units to be -40°C to +85°C in
a 50.8×50.8×10.2mm shielded metal case. Further
features include wide 2 : 1 input voltage range, remote
on/off control, short-circuit protection, over voltage
protection and over temperature protection.
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.
All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Output
(1) Capacitive
Output Current (mA)
Input Current (mA)
Eff .
Voltage
Load, max.
(%)
(2)
Min. Load
Full. Load
No Load
Full Load
(V)
(uF)
3.3
0
14000
120
2292
88
47000
5
0
12000
160
2907
90
36000
12
0
5000
45
2941
89
6800
BWC60-24S3
15
0
4000
45
2907
90
4700
BWC60-48S0
3.3
0
14000
65
1132
89
47000
5
0
12000
90
1453
90
36000
12
0
5000
30
1453
90
6800
15
0
4000
30
1437
91
4700
BWC60-24S1
BWC60-24S2
BWC60-48S1
BWC60-48S2
18~36V
Nominal:24V
36~75V
Nominal:48V
BWC60-48S3
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Rev:20130814A
Page 1 of8
DC-DC Converters
BWC60 Series -- 60Watt
Bothhand USA
Input Specifications
Input voltage
24V nominal input
18-36V
48V nominal input
36-75V
Input filter
Pi type
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
Remote ON/OFF
Converter: ON
Converter: OFF
66mAp-p typ.
160ms typ.
Open or 3.5V<Vr<12V
Short
(3)
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
<20 mA
Environmental Specifications
-40°C to +85°C (with derating)
Operating ambient temperature
+100°C
Maximum case temperature
-55°C to +105°C
Storage temperature range
95% RH max.
Relative humidity
±0.02% / °C max.
Temperature coefficient
Output Specifications
60 Watts max.
Output power
Voltage accuracy
Full load and nominal Vin
±1%
Minimum load
0mA
Line regulation
LL to HL at full load
Load Regulation
25% load to full load
±0.2%
±0.5%
(±0.8% for 3.3Vout)
85mVp-p max.
Ripple and Noise (20MHz Bandwidth)
Over voltage protection
(Zener Diode Clamp)
3.3Vout models
3.9V
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.
110°C typ.
Thermal shutdown
Hiccup, automatic recovery
Short circuit protection
Transient response settling time
50% load step change
Transient response over shoot
di/dt=0.8A/µs
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160µs typ.
≤ ±5% of Vo
Rev:20130814A
Page 2 of8
DC-DC Converters
BWC60 Series -- 60Watt
Bothhand USA
General Specifications
Efficiency
Nominal input
Isolation voltage
Input to output
Isolation resistance
See table
1500VDC
9
500VDC
10 Ohms min.
Isolation capacitance
1200pF typ.
Switching frequency
300kHz typ.
5
Reliability, calculated MTBF
7.48 × 10 Hrs
Physical Specifications
Case material
Nickel-coated copper
Base material
FR4 PCB
Silicon rubber (UL94 V-0)
Potting material
2.00 × 2.00 × 0.40 Inch
Dimensions
(50.8 × 50.8 × 10.2 mm)
60g (2.11oz) typ.
Weight
BWC60 Series
BWC60 Series
(4)
Power Derating Curve without Heatsink
Power Derating Curve with Heatsink
120
Output Power (%)
Output Power (%)
120
100
80
60
40
20
100
80
60
40
20
0
0
-40
-20
0
40
40
20
60
80
100
-40
120
-20
44
40
54
60
80
BWC60-48S1
BWC60-48S1
Output Current vs. Efficiency
Efficiency (%)
40
20
Input voltage vs. Efficiency
100
95
90
85
80
75
70
65
60
36
0
48
52
56
60
64
68
75
Input voltage (V)
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100
120
Ambient Temp.TA (℃)
Ambient Temp.TA (℃)
Efficiency (%)
(4)
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100
95
90
85
80
75
70
65
60
55
50
1.2
2.4
3.6
4.8
6.0
7.2
8.4
9.6
Output Current (A)
Rev:20130814A
Page 3 of8
10.8
12.0
DC-DC Converters
BWC60 Series -- 60Watt
Bothhand USA
BWC60-48S1
BWC60-48S1
Transient Response at 50%~100% Max Load
Loop Gain & Phase at Vi=48V,Full Load
Note
1. Typical value, tested at nominal input and full load.
2. For each output.
3. Short to -Vin (Pin 2).
4. Based on BWC60-48S1.
Mechanical Dimensions
8
7
6
5
3
Bottom View
4
2
1
Pin Assignment
Pin
Single
1
+Vin
2
-Vin
3
Remote On/Off
4
-Sense
5
+Sense
6
+Vout
7
-Vout
8
Trim
Unit: mm [inch]
Tolerance:±0.5[±0.02]
Specifications subject to change without notice.
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Rev:20130814A
Page 4 of8
Bothhand USA
DC-DC Converters
BWC60 Series -- 60Watt
Heat-sink (Option)
Material: Aluminum
Weight:
19g (0.67oz) (without converter)
Note:
The product label on converter has to be
removed before mounting the heat-sink.
For volume orders, converters will be supplied
with heat-sink already mounted. Please contact
factory for quotation.
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Rev:20130814A
Page 5 of8
DC-DC Converters
BWC60 Series -- 60Watt
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:20130814A
Page 6 of8
DC-DC Converters
BWC60 Series -- 60Watt
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:20130814A
Page 7 of8
DC-DC Converters
BWC60 Series -- 60Watt
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
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.
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Rev:20130814A
Page 8 of8
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