Isolated DC-DC Converters BQA3R Series -- 3 Watt Bothhand USA Features Wide 2 : 1 Input Voltage Range(4.5~9V,9~18V,18~36V,36~75V) Input / Output Isolation Voltage: 1.5K VDC Extended Operating Temperature Range: -40°C to +85°C Output Short Circuit Protection: Description Continuous & Auto Recovery The BQA3R Series are isolated 3W DC/DC converters. Designed Over Voltage Protection: Clamp Mode with highly efficiency, allow the operating temperature range of UL94V-0 Package Material these units to be -40°C to +85°C in a 24 pin DIP package with Lead Free Design, RoHS Compliant industry-standard footprint. Further features include wide 2 : 1 24pin DIP Package with Industry-Standard Footprint input voltage range, short-circuit protection and over voltage protection. Customer Design Available Safety Standard / Approval : IEC / EN 60950-1 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 Input Voltage Range BQA3-05S0R BQA3-05S1R BQA3-05S2R BQA3-05S3R 4.5~9V Nominal:5V BQA3-05D1R BQA3-05D2R BQA3-05D3R BQA3-12S0R BQA3-12S1R BQA3-12S2R BQA3-12S3R 9~18V Nominal:12V BQA3-12D1R BQA3-12D2R BQA3-12D3R BQA3-24S0R BQA3-24S1R BQA3-24S2R BQA3-24S3R 18~36V Nominal:24V BQA3-24D1R BQA3-24D2R BQA3-24D3R BQA3-48S0R BQA3-48S1R BQA3-48S2R BQA3-48S3R 36~75V Nominal:48V BQA3-48D1R BQA3-48D2R BQA3-48D3R [email protected] 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 . Load, max. Voltage (1) (%) (3) Min. Load Full. Load No Load Full Load (V) (uF) 3.3 0 600 76 46 552 4000 5 0 500 81 44 646 4000 12 0 250 82 62 769 4000 15 0 200 83 67 760 4000 ±5 0 ±250 82 55 638 1000 ±12 0 ±125 82 83 766 1000 ±15 0 ±100 82 89 765 1000 3.3 5 12 15 ±5 ±12 ±15 3.3 5 12 15 ±5 ±12 ±15 3.3 5 12 15 ±5 ±12 ±15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30 0 0 0 0 0 0 600 500 250 200 ±250 ±125 ±100 600 500 250 200 ±250 ±125 ±100 600 500 250 200 ±250 ±125 ±100 www.bothhandusa.com 78 4000 263 83 4000 314 84 4000 36 311 84 4000 29 262 83 1000 44 313 84 1000 59 317 83 1000 20 112 78 4000 23 133 82 4000 26 157 84 4000 26 156 84 4000 22 133 83 1000 26 223 24 35 30 159 83 1000 40 160 82 1000 10 57 76 4000 9 67 81 4000 11 79 83 4000 12 79 83 4000 10 67 82 1000 14 79 82 1000 18 80 82 1000 Rev:20130813A Page 1 of 7 Isolated DC-DC Converters BQA3R Series -- 3 Watt Bothhand USA Input Specifications Input Voltage 5V nominal input 4.5-9V 12V nominal input 9-18V 24V nominal input 18-36V 48V nominal input 36-75V Pi Type Input filter 5V input 10V 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 100mAp-p max. 100ms max. Environmental Specifications -40°C to +85°C (with derating) Operating ambient temperature +90°C Maximum case temperature -40°C to +125°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 ±1% 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 50% load step change Transient response over shoot di/dt=0.8A/µs [email protected] 110% typ. www.bothhandusa.com 46ms max. ≤ ±5% of Vo Rev:20130813A Page 2 of 7 Isolated DC-DC Converters BQA3R Series -- 3 Watt Bothhand USA General Specifications Efficiency Nominal input See table Isolation voltage Input to output 1500VDC Isolation resistance 500VDC 9 10 Ohms min. Isolation capacitance 280pF typ. Switching frequency 150kHz typ.. 6 Reliability, calculated MTBF 1.1 × 10 Hrs Physical Specifications Case material Non-conductive black plastic Base material Non-conductive black plastic Silicon rubber (UL94V-0) Potting material 1.25 × 0.80 × 0.40 Inches Dimensions (31.8 × 20.3 × 10.2 mm) Weight 12.8g (0.45oz) (typical) BQA3R Series Power Derating Curve (4) Output Power (%) 120 100 80 60 40 20 0 -40 -20 0 20 40 60 71 80 100 120 Ambient Temp.TA (℃) BQA3-48S1R Output Current vs. Efficiency Efficiency (%) Efficiency (%) BQA3-48S1R Input voltage vs. Efficiency Input voltage (V) [email protected] Output Current (A) www.bothhandusa.com Rev:20130813A Page 3 of 7 Isolated DC-DC Converters BQA3R Series -- 3 Watt Bothhand USA BQA3-48S1R BQA3-48S1R 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. Based on BQA3-48S1R. Mechanical Dimensions Pin 2 3 9 11 14 16 22 23 Pin Assignment Single Dual -Vin -Vin -Vin -Vin No pin Common No con. -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:20130813A Page 4 of 7 Isolated DC-DC Converters BQA3R 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% Vout：Output voltage Vout(nominal)：Nominal output voltage www.bothhandusa.com Rev:20130813A Page 5 of 7 Isolated DC-DC Converters BQA3R 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= 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 BQA3R 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:20130813A Page 7 of 7