Isolated DC-DC Converters BOB8W Series -- 8 Watt Bothhand USA Features Wide 4 : 1 Input Voltage Range(9~36V,18~75V) Remote On/Off High Efficiency up to 86% 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 BOB8W 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 4 : 1 input voltage range, remote on/off control, short-circuit protection and over voltage protection. Customer Design Available 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. Technical Specification Model Number All specifications are typical at nominal input, full load and 25°C unless otherwise stated. Output Input Voltage Voltage Range (Vdc) Output Current (mA) Min. Load Input Current (mA) Full. Load Full Load (1) Capacitive Eff . Load, max. (%) (2) (uF) No Load 3.3 0 2000 30 BOB8-24S1W 5 0 1500 BOB8-24S2W 12 0 665 15 0 ±5 BOB8-24D2W BOB8-24S0W 343 84 20200 45 386 85 14400 15 410 85 2300 535 16 413 85 1530 0 ±800 17 422 83 6700 ±12 0 ±335 20 418 85 1000 BOB8-24D3W ±15 0 ±265 20 409 85 760 BOB8-48S0W 3.3 0 2000 13 172 84 22200 BOB8-48S1W 5 0 1500 21 190 86 13000 BOB8-48S2W 12 0 665 6 205 85 2000 15 0 535 6 206 85 1330 ±5 0 ±800 5 211 83 6900 ±12 0 ±335 6 207 85 1100 ±15 0 ±265 7 204 85 760 9~36V BOB8-24S3W Nominal:24Vdc BOB8-24D1W 18~75V BOB8-48S3W Nominal:48Vdc BOB8-48D1W BOB8-48D2W BOB8-48D3W [email protected] www.bothhandusa.com Rev:20100929A Page 1 of 4 Isolated DC-DC Converters BOB8W Series -- 8 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 200mAp-p typ. 75ms typ. Open or 3.5V＜Vr＜12V Converter: ON Short Converter: OFF (3) or 0V＜Vr＜0.7V Sourcing current of remote control pin Nominal Vin ＜0.2 mA Idle input current (at Remote OFF state) Nominal Vin ＜6 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. Output Specifications Output power Voltage accuracy 8 Watts max. Full load and nominal Vin ±1% Minimum load Line regulation See table 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 50mVp-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 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 450µs typ. ≤ ±5% of Vo Rev:20100929A Page 2 of 4 Isolated DC-DC Converters BOB8W Series -- 8 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 300kHz typ. 6 Reliability, calculated MTBF 2.11 × 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 18g (0.62oz) typ. BOB8W Series (4) Power Derating Curve Output Power (%) 120 100 80 60 40 20 0 -40 -20 0 20 40 60 79 80 100 120 BOB8-48S1W BOB8-48S1W Input voltage vs. Efficiency Output Current vs. Efficiency 95 90 85 80 75 70 65 60 55 Efficiency (%) Efficiency (%) Ambient Temp.TA (℃ ℃) www.bothhandusa.com Rev:20100929A 1.5 75 1.35 66 1.2 60 1.05 54 0.9 [email protected] 48 0.75 42 0.6 36 0.45 30 0.3 24 0.15 18 95 90 85 80 75 70 65 60 55 Page 3 of 4 Isolated DC-DC Converters BOB8W Series -- 8 Watt Bothhand USA Input voltage (V) Output Current (A) BOB8-48S1W BOB8-48S1W Transient Response at 50%~100% Max Load Loop Gain & Phase at Vi=48V,Full Load Note 1. Typical value, tested at nominal input and full load. 2. For each output. 3. Short to -Vin (Pin 2,3). 4. Based on BOB8-48S1W. 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] Specifications subject to change without notice. [email protected] www.bothhandusa.com Rev:20100929A Page 4 of 4