Isolated DC-DC Converters BOB3W Series -- 3 Watt Bothhand USA Features Wide 4 : 1 Input Voltage Range(9~36V, 18~75V) 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 Over Voltage Protection: Clamp Mode Meet EN55022, Class A (Radiation) Shielded Metal Case with Insulated Baseplate Lead Free Design, RoHS Compliant The BOB3W 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 4 : 1 input voltage range, remote on/off control, short-circuit protection and over voltage protection. 24pin DIP Package with Industry-Standard Footprint Applications Customer Design Available 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. (2) Output Output Current (mA) Input Current (mA) Eff . Capacitive Voltage max. (1) (%) Load, (3) Min. Load Full. Load No Load Full Load (uF) (Vdc) BOB3-24S0W 3.3 15 750 6 146 75 1000 BOB3-24S1W 5 4 600 4 170 77 860 BOB3-24S2W 12 0 250 11 165 80 220 15 0 200 11 168 79 191 ±5 0 ±300 9 168 78 477 BOB3-24D2W ±12 0 ±125 15 167 79 147 BOB3-24D3W ±15 0 ±100 18 171 77 94 BOB3-48S0W 3.3 18 750 3 74 74 2500 BOB3-48S1W 5 15 600 2 85 77 1900 BOB3-48S2W 12 0 250 5 83 79 247 15 0 200 6 85 77 169 ±5 0 ±300 6 86 77 399 BOB3-48D2W ±12 0 ±125 8 85 78 110 BOB3-48D3W ±15 0 ±100 10 87 76 69 9~36V BOB3-24S3W Nominal:24Vdc BOB3-24D1W 18~75V BOB3-48S3W Nominal:48Vdc BOB3-48D1W [email protected] www.bothhandusa.com Rev:20100211A Page 1 of 4 Isolated DC-DC Converters BOB3W Series -- 3 Watt Bothhand USA Input Specifications Input Voltage 24V nominal input 9-36Vdc 48V nominal input 18-75Vdc Input filter Pi Type Input surge voltage 24V input 50Vdc (100ms max.) 48V input 100Vdc Input reflected ripple current Nominal Vin and full load Start up time Nominal Vin and constant resistive load Remote ON/OFF 60mAp-p typ. 540ms 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 Operating ambient temperature -40°C to +85°C (with derating) Maximum case temperature +100°C Storage temperature range -55°C to +105°C Relative humidity 5% to 95% RH Temperature coefficient ±0.02% / °C max. EMC Characteristics EMI EN55022 (radiation) Meet class A Output Specifications Output power Voltage accuracy 3 Watts max. 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% 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 Capacitive load Over load protection See table % of full load at nominal input Short circuit protection Continuous, automatic recovery Transient response settling time 50% load step change Transient response over shoot di/dt=0.8A/µs [email protected] 155% typ. www.bothhandusa.com 520µs typ. ≤ ±5% of Vo Rev:20100211A Page 2 of 4 Isolated DC-DC Converters BOB3W Series -- 3 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 300pF 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 Potting material Silicon rubber (UL94V-0) 1.25 × 0.80 × 0.40 Inch Dimensions (31.75 × 20.32 × 10.16 mm) Weight 17.2g (0.59oz) typ. BOB3WSeries Output Power (%) Power Derating Curve(5) Ambient Temp.TA (℃ ℃) BOB3-48S1W Output Current vs. Efficiency Efficiency (%) Efficiency (%) BOB3-48S1W Input voltage vs. Efficiency Input voltage (V) [email protected] Output Current (A) www.bothhandusa.com Rev:20100211A Page 3 of 4 Isolated DC-DC Converters BOB3W Series -- 3 Watt Bothhand USA BOB3-48S1 W BOB3-48S1W 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 BOB3-48S1W. 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:20100211A Page 4 of 4