Isolated DC-DC Converters BWA40 Series -- 40Watt Bothhand USA Features Wide 2 : 1 Input Voltage Range (9~18V,18~36V,36~75V) Remote On/Off Input / Output Isolation Voltage: 1.5K VDC High Efficiency up to 90% Output Short Circuit Protection: Hiccup & Auto Recovery Over Voltage Protection: Clamp Mode Over Temperature Protection Description Shielded Metal Case with Insulated Baseplate Lead Free Design, RoHS Compliant Adjustable Output Voltage Optional Heat-sink Customer Design Available Safety Standard Approval : IEC / EN 60950-1 The BWA40 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 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. Technical Specification Model Number Input Voltage Range BWA40-12S0 BWA40-12S1 All specifications are typical at nominal input, full load and 25°C unless otherwise stated. Output (2) Capacitive Output Current (mA) Input Current (mA) Eff . Voltage Load, max. (1) (%) (3) Min. Load Full. Load No Load Full Load (V) (uF) 3.3 0 8000 158 2683 86 38000 5 0 8000 166 3968 88 28000 12 0 3300 48 3976 87 5000 BWA40-12D2 ±12 0 ±1800 144 4444 85 2200 BWA40-12D3 ±15 0 ±1400 133 4321 85 1800 BWA40-24S0 3.3 0 8000 79 1310 88 38000 BWA40-24S1 5 0 8000 100 1938 90 28000 12 0 3300 34 1919 90 5000 BWA40-24D2 ±12 0 ±1800 66 2118 89 2200 BWA40-24D3 ±15 0 ±1400 67 2059 89 1800 BWA40-48S0 3.3 0 8000 56 655 88 38000 BWA40-12S2 BWA40-24S2 9~18V Nominal:12V 18~36V Nominal:24V 5 0 8000 66 969 90 28000 12 0 3300 18 959 90 5000 BWA40-48D2 ±12 0 ±1800 31 1047 90 2200 BWA40-48D3 ±15 0 ±1400 28 1017 90 1800 BWA40-48S1 BWA40-48S2 36~75V Nominal:48V [email protected] www.bothhandusa.com Rev:20130814A Page 1 of 8 Isolated DC-DC Converters BWA40 Series -- 40Watt Bothhand USA Input Specifications Input voltage 12V nominal input 9-18V 24V nominal input 18-36V 48V nominal input 36-75V Input filter Pi type 12V input 25V 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 100mAp-p typ. 78ms 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 -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 43.2 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 ±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% Single outputs 50mVp-p max. Dual outputs 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. 115°C typ. Thermal shutdown Hiccup, automatic recovery Short circuit protection [email protected] www.bothhandusa.com Rev:20130814A Page 2 of 8 Isolated DC-DC Converters BWA40 Series -- 40Watt Bothhand USA Transient response settling time 50% load step change 300µs typ. Transient response over shoot di/dt=0.8A/µs ≤ ±5% of Vo Efficiency Nominal input See table Isolation voltage Input to output General Specifications Isolation resistance 1500VDC 9 500VDC 10 Ohms min. Isolation capacitance 1200pF typ. Switching frequency 300kHz typ. 5 Reliability, calculated MTBF 9.17 × 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 BWA40 Series BWA40 Series Power Derating Curve without Heatsink(5) Power Derating Curve with Heatsink (5) 120 Output Power (%) Output Power (%) 120 100 80 60 40 20 0 -40 -20 0 20 40 59.1 60 100 80 60 40 20 0 80 100 120 -40 -20 20 40 66.1 60 80 BWA40-48S1 BWA40-48S1 Input voltage vs. Efficiency Output Current vs. Efficiency 100 95 90 85 80 75 70 65 60 18 20 22 24 [email protected] 26 28 100 120 7.2 8.0 Ambient Temp.TA (℃) Efficiency (%) Efficiency (%) Ambient Temp.TA (℃) 0 30 32 34 36 www.bothhandusa.com 100 95 90 85 80 75 70 65 60 55 50 0.8 1.6 2.4 3.2 4.0 Rev:20130814A 4.8 5.6 6.4 Page 3 of 8 Bothhand USA Input voltage (V) BWA40-48S1 Isolated DC-DC Converters BWA40 Series -- 40Watt Output Current (A) BWA40-48S1 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). 5. Based on BWA40-48S1. Mechanical Dimensions Pin 1 2 3 4 5 6 7 8 9 Pin Assignment Single Dual +Vin +Vin -Vin -Vin Remote On/Off No function No pin -Sense +Vout +Sense Common +Vout Common -Vout -Vout Trim Unit: mm [inch] Tolerance:±0.5[±0.02] [email protected] www.bothhandusa.com Rev:20130814A Page 4 of 8 Bothhand USA Isolated DC-DC Converters BWA40 Series -- 40Watt Specifications subject to change without notice. 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. Separate heat-sinks are only available for prototypes and small quantity orders. [email protected] www.bothhandusa.com Rev:20130814A Page 5 of 8 Isolated DC-DC Converters BWA40 Series -- 40Watt 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:20130814A Page 6 of 8 Isolated DC-DC Converters BWA40 Series -- 40Watt 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:20130814A Page 7 of 8 Isolated DC-DC Converters BWA40 Series -- 40Watt 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 Output Power (%) 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 -40 -20 0 20 40 59.1 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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