Isolated DC-DC Converters BOB12W Series -- 12 Watt Bothhand USA Features Wide 4 : 1 Input Voltage Range(9~36V,18~75V) Remote On/Off High Efficiency up to 87% Input / Output Isolation Voltage: 1.5K VDC Extended Operating Temperature Range: -40°C to +85°C Output Short Circuit Protection: Description Hiccup, continuous & Auto Recovery Over Voltage Protection: Clamp Mode Shielded Metal Case with Insulated Baseplate Lead Free Design, RoHS Compliant 24pin DIP Package with Industry-Standard Footprint The BOB12W Series are isolated 12W 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 4 : 1 input voltage range, remote on/off control, short-circuit 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 All specifications are typical at nominal input, full load and 25°C unless otherwise stated. Output (2) Capacitive Output Current (mA) Input Current (mA) Model Input Voltage Eff . Voltage Load, max. Number Range (%) (3) Min. Load (1) Full. Load No Load Full Load (V) (uF) 3.3 0 83 BOB12-24S0W 3500 49 609 35700 5.1 0 58 638 84 2400 BOB12-24S1W 9400 BOB12-24S2W 9~36V BOB12-24S3W Nominal:24V BOB12-24D1W 12 0 1000 14 617 85 3530 15 0 800 17 617 85 2200 ±5 0 ±1200 18 642 82 6900 BOB12-24D2W ±12 5 ±500 17 617 85 1760 BOB12-24D3W ±15 0 ±400 17 617 85 1100 BOB12-48S0W 3.3 0 3500 19 300 84 21000 BOB12-48S1W 5.1 0 2400 24 315 85 12860 BOB12-48S2W 12 80 1000 6 302 87 2300 15 30 800 6 302 87 1660 18~75V BOB12-48S3W Nominal:48V BOB12-48D1W ±5 80 ±1200 6 317 83 6030 BOB12-48D2W ±12 0 ±500 13 309 85 1100 BOB12-48D3W ±15 0 ±400 9 304 86 760 [email protected] www.bothhandusa.com Rev:20130813A Page 1 of 7 Isolated DC-DC Converters BOB12W Series -- 12 Watt Bothhand USA Input Specifications Input Voltage 24V nominal input 9-36V 48V nominal input 18-75V Input filter Pi Type 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. 75ms typ. Open or 3.5V＜Vr＜12V Converter: ON Short Converter: OFF (4) or 0V＜Vr＜0.5V Sourcing current of remote control pin Nominal Vin ＜0.2 mA Idle input current (at Remote OFF state) Nominal Vin ＜7.5 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 Output Specifications 12 Watts max. Output power Voltage accuracy Full load and nominal Vin ±1.2% See table Minimum load Line regulation LL to HL at full load 25% load to full load Load Regulation Balanced load ±0.5% Single ±1% Dual ±1% Unbalanced load 25% to 100% full load Ripple and Noise ±5% 20MHz bandwidth 85mVp-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 Short circuit protection Hiccup, continuous (Auto Recovery) Transient response settling time 50% load step change Transient response over shoot di/dt=0.8A/µs [email protected] 150% typ. www.bothhandusa.com 350µs typ. ≤ ±5% of Vo Rev:20130813A Page 2 of 7 Isolated DC-DC Converters BOB12W Series -- 12 Watt Bothhand USA General Specifications Efficiency Nominal input Isolation voltage Input to output Isolation resistance See table 1500VDC 9 500VDC 10 Ohms min. Isolation capacitance 260pF typ. Switching frequency 400kHz typ. 6 Reliability, calculated MTBF 2.11 × 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 18g (0.62oz) typ. BOB12W Series Power Derating Curve (5) Output Power (%) 120 100 80 60 40 20 0 68 -40 -20 0 20 40 60 80 100 120 Ambient Temp.TA (℃) [email protected] Efficiency (%) BOB12-48S1W Output Current vs. Efficiency Efficiency (%) BOB12-48S1W Input voltage vs. Efficiency www.bothhandusa.com Rev:20130813A Page 3 of 7 Isolated DC-DC Converters BOB12W Series -- 12 Watt Bothhand USA Input voltage (V) Output Current (A) BOB12-48S1W Transient Response at 50%~100% Max Load BOB12-48S1W 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 BOB12-48S1W. Mechanical Dimensions Pin 1 2 3 9 11 14 16 22 23 Pin Assignment Single Dual 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] [email protected] www.bothhandusa.com Rev:20130813A Page 4 of 7 Isolated DC-DC Converters BOB12W Series -- 12 Watt Bothhand USA Specifications subject to change without notice. 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% www.bothhandusa.com Rev:20130813A Page 5 of 7 Bothhand USA Isolated DC-DC Converters BOB12W Series -- 12 Watt Vout：Output voltage Vout(nominal)：Nominal output voltage ││││ ││││ 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 BOB12W Series -- 12 Watt 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 drawn from the output and the device is already running. The temperature derating curve shows the operating power-temperature range. As shown below. Output Power (%) 120 100 80 60 40 20 0 68 -40 -20 0 20 40 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. [email protected] www.bothhandusa.com Rev:20130813A Page 7 of 7