Isolated DC-DC Converters BOB3WH3 Series -- 3 Watt Bothhand USA Features Wide 4 : 1 Input Voltage Range (9~36V,18~75V) High Power Density High Efficiency Operating Temperature Range: -40°C to +85°C Output Short Circuit Protection Output Over Voltage Protection Remote On /Off Control Applications Input/ Output Isolation 3000 VDC Distributed power system Shielded Metal Case with Insulated Baseplate Telecommunication application Lead Free Design, RoHS Compliant Battery powered equipment 24pin DIP Package with Industry-Standard Footprint Industrial application Safety Standard / Approval : IEC/EN60950-1 Process control equipment Transportation equipment Technical Specification Model Number All specifications are typical at nominal input, full load and 25°C unless otherwise stated. Output (2) Capacitive Output Current (mA) Input Current (mA) Input Voltage Eff . Voltage Load, max. Range (%) (3) Min. Load (1) Full. Load No Load Full Load (V) (uF) BOB3-24S0WH3 3.3 22 750 5 143 76 470 BOB3-24S1WH3 5 10 600 4 169 78 330 12 0 250 9 164 80 147 15 0 200 10 14 80 82 BOB3-24D1WH3 ±5 0 ±300 8 167 79 168 BOB3-24D2WH3 ±12 0 ±125 14 164 80 47 BOB3-24D3WH3 ±15 0 ±100 16 164 80 33 BOB3-48S0WH3 BOB3-24S2WH3 BOB3-24S3WH3 9~36V Nominal:24Vdc 3.3 11 750 3 72 76 470 BOB3-48S1WH3 5 10 600 2 84 78 330 BOB3-48S2WH3 12 0 250 5 83 79 100 15 0 200 6 82 80 68 BOB3-48D1WH3 ±5 0 ±300 5 84 78 168 BOB3-48D2WH3 ±12 0 ±125 8 83 79 33 BOB3-48D3WH3 ±15 0 ±100 9 86 77 33 18~75V BOB3-48S3WH3 Nominal:48Vdc [email protected] www.bothhandusa.com Rev:20130812A Page 1 of 7 Isolated DC-DC Converters BOB3WH3 Series -- 3 Watt Bothhand USA Input Specifications Input Voltage 24V nominal input 9-36V 48V nominal input 18-75V Pi Type Input filter Input surge voltage 24V input 50V (100ms max.) 48V input 100V Input reflected ripple current Nominal Vin and full load Remote On/Off control Converter: ON Converter: OFF Sourcing current of remote control pin Nominal Vin ＜0.2 mA Idle input current (at Remote OFF state) Nominal Vin ＜2.5 mA Start up time Nominal Vin and constant resistive load 72mAp-p typ. Open or 3.5V＜Vr＜12V Short (4) or 0V＜Vr＜1.2V 400ms max. Environmental Specifications -40°C to +85°C (with derating) Operating ambient temperature Maximum case temperature +100°C -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% Minimum load Line regulation See table 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% 60mVp-p max. 20MHz bandwidth 3.3Vout models 3.9V Over voltage protection 5Vout models 6.2V (Zener Diode Clamp) 12Vout models 15V 15Vout models 18V Capacitive load Over load protection See table % of full load 120% min. Continuous, automatic recovery Short circuit protection Transient response settling time 50% load step change 1320µs max. Transient response over shoot di/dt=0.8A/µs ≤ ±5% of Vo [email protected] www.bothhandusa.com Rev:20130812A Page 2 of 7 Isolated DC-DC Converters BOB3WH3 Series -- 3 Watt Bothhand USA General Specifications Efficiency Nominal input Isolation voltage Input to output Isolation resistance See table 3000VDC 9 500VDC 10 Ohms min. Isolation capacitance 270pF 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. BOB3WH3Series Output Power (%) Power Derating Curve(5) BOB3-48S1WH3 BOB3-48S1WH3 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 www.bothhandusa.com Rev:20130812A 0.60 75 0.54 66 0.48 60 0.42 54 0.36 [email protected] 48 0.30 42 0.24 36 0.18 30 0.12 24 0.06 18 Page 3 of 7 Isolated DC-DC Converters BOB3WH3 Series -- 3 Watt Bothhand USA Input voltage (V) Output Current (A) BOB3-48S1WH3 Transient Response at 50%~100% Max Load BOB3-48S1WH3 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 BOB3-48S1WH3. 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] [email protected] www.bothhandusa.com Rev:20130812A Page 4 of 7 Isolated DC-DC Converters BOB3WH3 Series -- 3 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:20130812A Page 5 of 7 Isolated DC-DC Converters BOB3WH3 Series -- 3 Watt Bothhand USA 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 : │Vout(FL)-Vout(NL)│ │ x100% 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:20130812A Page 6 of 7 Isolated DC-DC Converters BOB3WH3 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 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:20130812A Page 7 of 7