BWC40W 20110406A

Isolated DC-DC Converters
BWC40W Series -- 40Watt
BOTHHAND USA
Features
Wide 4 : 1 Input Voltage Range (9~36V,18~75V)
Remote On/Off
Input / Output Isolation Voltage: 1.5K Vdc
High Efficiency up to 88%
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
Synchronous Rectifier Topology
Customer Design Available
Description
The BWC40W Series are isolated 40W 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 4 : 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.
Technical Specification All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Model
Number
Input Voltage
Range
BWC40-24S2W
9~36V
BWC40-24S3W Nominal:24VDC
BWC40-24D2W
E-mail: [email protected]
Output
Output Current (mA)
Voltage
(1)
Full. Load
(Vdc) Min. Load
Input Current (mA)
No Load
Full Load
(2)
Eff . Capacitive
max.
(%) Load,
(3)
(uF)
12
0
3350
122
2018
87
3800
15
0
2650
112
1972
88
3000
±12
0
±1650
58
2012
86
2200
http://www.bothhandUSA.com
Rev:20110512A
Page 1 of 5
Isolated DC-DC Converters
BWC40W Series -- 40Watt
BOTHHAND USA
Input Specifications
Input voltage
24V nominal input
9-36Vdc
48V nominal input
18-75Vdc
Input filter
Pi type
Input surge voltage
24V input
50Vdc
(100ms max.)
48V input
100Vdc
Input reflected ripple current
Nominal Vin and full load
Start up time
Nominal Vin and constant resistive load
Remote ON/OFF
38mAp-p typ.
58ms 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
<20 mA
Environmental Specifications
Operating ambient temperature
-40°C to +85°C (with derating)
Maximum case temperature
+100°C
Storage temperature range
-55°C to +105°C
Relative humidity
95% RH max.
Temperature coefficient
±0.02% / °C max.
Output Specifications
Output power
Voltage accuracy
40.2 Watts max.
Full load and nominal Vin
±1%
Minimum load
Line regulation
See table
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 (20MHz Bandwidth)
Over voltage protection
(Zener Diode Clamp)
±3%
3.3&5Vout models
50mVp-p max.
12&15Vout models
85mVp-p max.
3.3Vout models
3.9V
5Vout models
6.2V
12Vout models
15V
15Vout models
18V
Capacitive load
Over load protection
See table
% of full load at nominal input
110% min.
Thermal shutdown
115°C typ.
Short circuit protection
Hiccup, automatic recovery
Transient response settling time
50% load step change
Transient response over shoot
di/dt=0.8A/µs
E-mail: sa[email protected]
http://www.bothhandUSA.com
300µs typ.
≤ ±5% of Vo
Rev:20110512A
Page 2 of 5
Isolated DC-DC Converters
BWC40W Series -- 40Watt
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
9.68 × 10 Hrs
Physical Specifications
Case material
Nickel-coated copper
Base material
FR4 PCB
Potting material
Silicon rubber (UL94 V-0)
2.00 × 2.00 × 0.40 Inch
Dimensions
(50.8 × 50.8 × 10.2 mm)
Weight
60g (2.11oz) typ.
BWC40W Series
BWC40W Series
(5)
Power Derating Curve without Heatsink
Power Derating Curve with Heatsink
120
Output Power (%)
Output Power (%)
120
100
80
60
40
20
0
-40
-20
0
20
40
100
80
60
40
20
0
59.1
60
80
100
120
-40
-20
Ambient Temp.TA (℃
℃)
0
20
40
66.1
60
80
100
120
Ambient Temp.TA (℃
℃)
BWC40-24S2W
BWC40-24S2W
Input voltage vs. Efficiency
Output Current vs. Efficiency
95
90
85
80
75
70
65
60
55
95
90
Efficiency (%)
Efficiency (%)
(5)
Input voltage (V)
E-mail: [email protected]
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Output Current (A)
Rev:20110512A
Page 3 of 5
3.350
36
3.015
33
2.688
30
2.345
27
2.010
24
1.675
21
1.340
18
1.005
15
0.670
12
65
60
55
0.335
9
85
80
75
70
Isolated DC-DC Converters
BWC40W Series -- 40Watt
BOTHHAND USA
BWC40-24S2W
BWC40-24S2W
Transient Response at 50%~100% Max Load
Loop Gain & Phase at Vi=24V,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).
5. Based on BWC40-24S2W.
Mechanical Dimensions
Pin
1
2
3
4
5
6
7
8
Pin Assignment
Single
Dual
+Vin
+Vin
-Vin
-Vin
Remote On/Off
-Sense
+Vout
+Sense
Common
+Vout
Common
-Vout
-Vout
Trim
Unit: mm [inch]
Tolerance:±0.5[±0.02]
Specifications subject to change without notice.
E-mail: [email protected]
http://www.bothhandUSA.com
Rev:20110512A
Page 4 of 5
Isolated DC-DC Converters
BWC40W Series -- 40Watt
BOTHHAND USA
Heat-sink
Material:
Weight:
Aluminum
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.
E-mail: [email protected]
http://www.bothhandUSA.com
Rev:20110512A
Page 5 of 5