Isolated DC-DC Converters BOB3H3 Series -- 3 Watt Bothhand USA Features Wide 2 : 1 Input Voltage Range(9~18V,18~36V,36~75V) Remote On/Off Input / Output Isolation Voltage: 3.0kVDC Extended Operating Temperature Range: -40°C to +85°C Output Short Circuit Protection: Description Continuous & Auto Recovery The BOB3H3 Series are isolated 3W 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 Shielded Metal Case with Insulated Baseplate Lead Free Design, RoHS Compliant 24pin DIP Package with Industry-Standard Footprint Customer Design Available Technical Specification Model Number Input Voltage Range BOB3-12S0H3 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) 3.3 750 23 14 281 77 820 BOB3-12S1H3 5 0 600 21 333 79 680 BOB3-12S2H3 12 0 250 24 325 81 182 9~18V BOB3-12S3H3 Nominal:12Vdc 15 0 200 25 329 80 100 BOB3-12D1H3 ±5 2 ±300 21 329 80 330 BOB3-12D2H3 ±12 0 ±125 27 325 81 82 BOB3-12D3H3 ±15 0 ±100 35 329 80 47 BOB3-24S0H3 3.3 23 750 8 138 79 820 BOB3-24S1H3 5 0 600 10 164 80 680 BOB3-24S2H3 12 0 250 12 160 82 182 14 162 81 100 18~36V BOB3-24S3H3 Nominal:24Vdc 15 0 200 BOB3-24D1H3 ±5 2 ±300 11 164 80 330 BOB3-24D2H3 ±12 0 ±125 16 160 82 82 BOB3-24D3H3 ±15 0 ±100 17 162 81 47 BOB3-48S0H3 3.3 23 750 5 71 77 820 BOB3-48S1H3 5 0 600 7 84 78 680 BOB3-48S2H3 12 0 250 8 82 80 182 8 82 80 100 36~75V BOB3-48S3H3 Nominal:48Vdc 15 0 200 BOB3-48D1H3 ±5 2 ±300 9 83 79 330 BOB3-48D2H3 ±12 0 ±125 10 82 80 82 BOB3-48D3H3 ±15 0 ±100 12 82 80 47 [email protected] www.bothhandusa.com Rev:20131220A Page 1 of 7 Isolated DC-DC Converters BOB3H3 Series -- 3 Watt Bothhand USA Input Specifications Input Voltage 12V nominal input 9-18V 24V nominal input 18-36V 48V nominal input 36-75V Pi Type Input filter 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 86mAp-p max. Open or 3.5V＜Vr＜12V Converter: ON Remote ON/OFF 1020ms max. 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 Output Specifications 3 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 ±0.5% Single ±0.5% Dual ±0.5% Unbalanced load 25% to 100% full load Ripple and Noise ±3% 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 Transient response over shoot 150% typ. 1600µs max. ≤ ±3% of Vo 50% load step change di/dt=0.8A/µs General Specifications Efficiency [email protected] Nominal input www.bothhandusa.com See table Rev:20131220A Page 2 of 7 Isolated DC-DC Converters BOB3H3 Series -- 3 Watt Bothhand USA 3000VDC Input to output Isolation voltage Isolation resistance 9 500 VDC 10 Ohms min. Isolation capacitance 280pF typ. Switching frequency 300kHz typ. 6 Reliability, calculated MTBF 2.53 × 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. BOB3H3 Series Output Power (%) Power Derating Curve(5) BOB3-48S1H3 BOB3-48S1H3 Input voltage vs. Efficiency Output Current vs. Efficiency 85 85 80 75 70 65 60 55 50 45 Efficiency (%) Efficiency (%) Ambient Temp.TA (℃) 80 75 70 65 60 55 50 45 Input voltage (V) [email protected] www.bothhandusa.com 0.60 75 0.54 68 0.48 64 0.42 60 0.36 56 0.30 52 0.24 48 0.18 44 0.12 40 0.06 36 Output Current (A) Rev:20131220A Page 3 of 7 Isolated DC-DC Converters BOB3H3 Series -- 3 Watt Bothhand USA BOB3-48S1H3 Transient Response at 50%~100% Max Load BOB3-48S1H3 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 BOB3-48S1H3. 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 pin 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:20131220A Page 4 of 7 Isolated DC-DC Converters BOB3H3 Series -- 3 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% www.bothhandusa.com Vout：Output voltage Vout(nominal)：Nominal output voltage Rev:20131220A Page 5 of 7 Isolated DC-DC Converters BOB3H3 Series -- 3 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= ΔVout = Δ Vout Δ Vin 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 Δ Vin = 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 : │ │ Vout(FL)-Vout(NL)│ Vout(FL) x100% 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:20131220A Page 6 of 7 Isolated DC-DC Converters BOB3H3 Series -- 3 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:20131220A Page 7 of 7