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: [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] http://www.bothhandUSA.com 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