Isolated DC-DC Converters BUB20 Series -- 20 Watt 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 Extended Operating Temperature Range: -40°C to+85°C Output Short Circuit Protection: Description Hiccup mode & Auto Recovery The BUB20 Series are isolated 20W DC/DC converters. Over Voltage Protection: Clamp Mode Designed with highly efficiency, allow the operating temperature Shielded Metal Case with Insulated Baseplate range of these units to be -40°C to +85°C in a 6 pin DIP package with industry-standard footprint. Further features include wide 2 : Lead Free Design, RoHS Compliant 1 input voltage range, remote on/off control, short-circuit 6 pin DIP Package with Industry-Standard Footprint protection and over voltage protection. Customer Design Available Applications Safety Standard / Approval :IEC/ EN 60950-1 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) Full. Load No Load Full Load Eff . (%) Capacitive (3) Load, max. (uF) (2) BUB20-12S0 3.3 0 4000 61 1418 82 28000 BUB20-12S1 5 0 4000 92 2083 84 26000 1998 12 28 1670 94 88 4900 15 24 1340 90 1982 89 2960 BUB20-12D1 ±5 0 ±2000 85 2064 85 12000 BUB20-12D2 ±12 0 ±835 92 1988 88 2020 BUB20-12D3 ±15 ±8 ±670 90 1984 88 880 BUB20-24S0 3.3 0 4000 26 693 83 36560 BUB20-24S1 5 0 4000 33 1019 86 19760 BUB20-24S2 12 0 1670 33 971 90 4600 15 33 1340 31 968 91 2900 BUB20-24D1 ±5 0 ±2000 31 1004 87 13000 BUB20-24D2 ±12 0 ±835 34 968 90 2300 BUB20-24D3 ±15 0 ±670 31 964 91 1400 BUB20-48S0 3.3 0 4000 12 351 82 58000 BUB20-48S1 5 0 4000 15 513 85 23280 BUB20-48S2 12 0 1670 16 487 90 4584 15 33 1340 15 484 90 2824 BUB20-48D1 ±5 0 ±2000 14 501 87 11760 BUB20-48D2 ±12 0 ±835 15 485 90 1600 BUB20-48D3 ±15 0 ±670 15 484 90 960 BUB20-12S2 BUB20-12S3 BUB20-24S3 BUB20-48S3 9~18V Nominal:12V 18~36V Nominal:24V 36~75V Nominal:48VDC [email protected] www.bothhandusa.com Rev:20130814 A Page 1 of 7 Isolated DC-DC Converters BUB20 Series -- 20 Watt 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 Input surge voltage 12V nominal input 25V (100ms max.) 24V nominal input 50V 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. 76ms typ. Open or 3.5V＜Vr＜12V Converter: ON Short Converter: OFF (4) or 0V＜Vr＜1.2V Sourcing current of remote control pin Nominal Vin ＜0.2 mA Idle input current (at Remote OFF state) Nominal Vin ＜10mA 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 5% to 95% RH Relative humidity ±0.02% / °C max. Temperature coefficient Output Specifications 20 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% Single ±0.5% 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 150% typ. Hiccup, automatic recovery Short circuit protection Transient response settling time 50% load step change 1200uS max. Transient response over shoot di/dt=0.8A/µs ≤ ±5% of Vo [email protected] www.bothhandusa.com Rev:20130814 A Page 2 of 7 Isolated DC-DC Converters BUB20 Series -- 20 Watt Bothhand USA General Specifications Efficiency Nominal input See table Isolation voltage Input to output 1500VDC Isolation resistance 500VDC 9 10 Ohms min. Isolation capacitance 1100pF typ. Switching frequency 330kHz typ. 6 Reliability, calculated MTBF 1.58×10 Hrs Physical Specifications Case material Nickel-coated copper Base material Non-conductive black plastic Silicon rubber (UL94V-0) Potting material 2.0 × 1.0 × 0.4 Inch Dimensions (50.8 × 25.4 × 10.2 mm) Weight 32.0g (1.13oz) typ. BUB20 Series Output Power (%) Power Derating Curve(5) Ambient Temp.TA (℃) BUB20-48S1 Output Current vs. Efficiency Efficiency (%) Efficiency (%) BUB20-48S1 Input voltage vs. Efficiency Input voltage (V) [email protected] www.bothhandusa.com Output Current (A) Rev:20130814 A Page 3 of 7 Isolated DC-DC Converters BUB20 Series -- 20 Watt Bothhand USA BUB20-48S1 BUB20-48S1 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 BUB20-48S1. 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 Remote On/Off (optional) (optional) Unit: mm [inch] Tolerance:±0.5[0.02] [email protected] www.bothhandusa.com Rev:20130814 A Page 4 of 7 Isolated DC-DC Converters BUB20 Series -- 20 Watt Bothhand USA Specifications subject to change without noticed. 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:20130814 A Page 5 of 7 Isolated DC-DC Converters BUB20 Series -- 20 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 Δ Vout = 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:20130814 A Page 6 of 7 Isolated DC-DC Converters BUB20 Series -- 20 Watt Bothhand USA Output Ripple&Noise measurement test circuit: as shown below. Copper strip DC/DC converter Co Oscilloscope Load 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. 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:20130814 A Page 7 of 7