Isolated DC-DC Converters BOB8 Series -- 8 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 Continuous & Auto Recovery The BOB8 Series are isolated 8W DC/DC converters. Designed with highly efficiency, allow the operating temperature range of these units to be -40°C to +85°C in a 24 pin DIP package with industry-standard footprint. Further features include wide 2 : 1 input voltage range, remote on/off control, short-circuit protection and over voltage protection. Over Voltage Protection: Clamp Mode Meet EN55022, Class A (Radiation) Shielded Metal Case with Insulated Baseplate Lead Free Design, RoHS Compliant 24pin DIP Package with Industry-Standard Footprint Customer Design Available Safety Standard / Approval: IEC / EN 60950-1 Technical Specification Model Number Input Voltage Range BOB8-12S0 BOB8-12S1 BOB8-12S2 9~18V Nominal:12V 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 (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 82 2000 6.8 733 79 6800 5 62 1500 3.4 791 82 3300 12 0 665 24 812 87 650 15 0 535 24 832 85 400 BOB8-12D1 ±5 0 ±800 27 865 83 1650 BOB8-12D2 ±12 0 ±335 31 812 86 160 BOB8-12D3 ±15 0 ±265 28 824 86 270 BOB8-24S0 3.3 88 2000 3.6 366 79 6800 BOB8-24S1 5 20 1500 9.3 405 83 3300 12 0 665 14 432 85 440 BOB8-12S3 BOB8-24S2 18~36V Nominal:24V 15 0 535 15 416 85 280 BOB8-24D1 ±5 0 ±800 14 427 83 1650 BOB8-24D2 ±12 0 ±335 17 411 86 170 BOB8-24D3 ±15 0 ±265 17 407 87 180 BOB8-48S0 3.3 72 2000 2 183 80 6800 BOB8-48S1 5 0 1500 5 200 83 3300 12 0 665 7 205 86 400 BOB8-24S3 BOB8-48S2 36~75V Nominal:48V 15 0 535 7 203 86 200 BOB8-48D1 ±5 0 ±800 6 213 83 1750 BOB8-48D2 ±12 0 ±335 7 205 86 120 BOB8-48D3 ±15 0 ±265 8 203 87 250 BOB8-48S3 [email protected] www.bothhandusa.com Rev:20130813A Page 1 of 7 Isolated DC-DC Converters BOB8 Series -- 8 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 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 30mAp-p typ. 600ms 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 ＜2.5 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 5% to 95% RH Relative humidity ±0.02% / °C max. Temperature coefficient EMC Characteristics EN55022 (radiation) EMI Meet class A Output Specifications 8 Watts max. Output power Voltage accuracy Full load and nominal Vin ±2% See table Minimum load Line regulation LL to HL at full load 25% load to full load Load Regulation Balanced load ±0.2% Single ±1% Dual ±1% Unbalanced load 25% to 100% full load Ripple and Noise ±5% 20MHz bandwidth 60mVp-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 Continuous, automatic recovery Short circuit protection Transient response settling time [email protected] 150% typ. 50% load step change www.bothhandusa.com 200µs typ. Rev:20130813A Page 2 of 7 Isolated DC-DC Converters BOB8 Series -- 8 Watt Bothhand USA 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 300pF typ. Switching frequency 300kHz typ. 6 Reliability, calculated MTBF 3.76 × 10 Hrs Physical Specifications Case material Nickel-coated copper Base material Non-conductive black plastic Silicon rubber (UL94V-0) Potting material 1.25 × 0.80 × 0.40 Inch Dimensions (31.75 × 20.32 × 10.16 mm) Weight 17.2g (0.59oz) typ. BOB8 Series Output Power (%) Power Derating Curve(5) Ambient Temp.TA (℃) BOB8-48S1 Output Current vs. Efficiency Efficiency (%) Efficiency (%) BOB8-48S1 Input voltage vs. Efficiency Input voltage (V) [email protected] Output Current (A) www.bothhandusa.com Rev:20130813A Page 3 of 7 Isolated DC-DC Converters BOB8 Series -- 8 Watt Bothhand USA BOB8-48S1 BOB8-48S1 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 2,3). 5. Based on BOB8-48S1. Mechanical Dimensions Pin 1 2 3 9 11 14 16 22 23 Pin Assignment Single Dual Remote On/Off Remote On/Off -Vin -Vin -Vin -Vin No function Common No function -Vout +Vout +Vout -Vout Common +Vin +Vin +Vin +Vin Unit: mm [inch] Tolerance:±0.5[0.02] Specifications subject to change without notice. [email protected] www.bothhandusa.com Rev:20130813A Page 4 of 7 Isolated DC-DC Converters BOB8 Series -- 8 Watt 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:20130813A Page 5 of 7 Isolated DC-DC Converters BOB8 Series -- 8 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 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:20130813A Page 6 of 7 Isolated DC-DC Converters BOB8 Series -- 8 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 drawn from the output and the device is already running. The temperature derating curve shows the operating Output Power (%) 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:20130813A Page 7 of 7