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Hello, Please ask a question about BOB3H3 Datasheet
# Example questions:
➢ What is the purpose of the 'temperature derating curve'?
➢ The datasheet mentions a 'copper strip' in the output ripple & noise measurement test circuit. what is its typical capacitance value?
➢ What is the maximum input voltage for the bob3-48s1h3 model?
| Part No. | BOB3H3 |
| Manufacturer | BOTHHAND |
| Size | 925 Kbytes |
| Pages | 7 pages |
| Description | Isolated DC-DC Converters |
1. Overview:
️· Product: BOB3H3 Series Isolated DC-DC Converters
️· Type: Provides DC voltage conversion.
️· Application: Suitable for a wide range of applications needing isolated power.
2. Key Features & Specifications:
️· Input Voltage Ranges:
- Narrow Range: ±10% of nominal
- Wide Range (2:1): (Example: 4.5-9V for 5V nominal, 9-18V for 12V nominal, 18-36V for 24V nominal, 36-75V for 48V nominal)
- Wide Range (4:1): (Example: 9-36V for 24V nominal, 18-75V for 48V nominal)
️· Output Power: Variable, based on input voltage and load.
️· Efficiency: Not explicitly stated, but dependent on input voltage, output load, and operating temperature. See derating curves for details.
️· Switching Frequency: 300kHz (typical)
️· Isolation:
- Input-to-Output Isolation Voltage: (specification)
- Isolation Capacitance: 280pF (typical)
- Isolation Resistance: >10^9 Ohms min.
️· Reliability: Calculated MTBF: 2.53 × 10^6 Hours
️· Physical Dimensions: 1.25 x 0.80 x 0.40 inches (31.75 x 20.32 x 10.16 mm)
️· Weight: 17.2g (0.59oz) typical
3. Electrical Characteristics & Test Configurations:
️· Input Power: P<sub>in</sub> = V<sub>in</sub> * I<sub>in</sub>
️· Output Power: P<sub>out</sub> = V<sub>out</sub> * I<sub>out</sub>
️· Efficiency: Efficiency = (P<sub>out</sub> / P<sub>in</sub>) * 100%
️· Voltage Accuracy: ((V<sub>out</sub> - V<sub>out(nominal)</sub>) / V<sub>out(nominal)</sub>) * 100%
️· Line Regulation:
- Wide Input Range: ((V<sub>out(LL)</sub> - V<sub>out(HL)</sub>) / V<sub>out(LL)</sub>) * 100%
- Narrow Range: ((V<sub>out(+10%)</sub> - V<sub>out(-10%)</sub>) / V<sub>out</sub>) * 100% and ΔVin / Vin(nominal)
️· Load Regulation: ((V<sub>out(FL)</sub> - V<sub>out(NL)</sub>) / V<sub>out(FL)</sub>) * 100%
️· Ripple & Noise: Measured using a specific test circuit (details provided in the document). Bandwidth: 0-20MHz.
4. Mechanical/Pinout Information:
️· Case Material: Nickel-coated copper
️· Base Material: Non-conductive black plastic
️· Pin Assignments (Single vs. Dual Output): (A table is provided in the document detailing pin functions)
5. Environmental Considerations:
️· Temperature Derating: A graph showing the relationship between ambient temperature and allowable power output (specific to the BOB3-48S1H3 model).
6. Testing/Measurement Setup:
️· The document includes detailed descriptions of test configurations for various measurements like Input Power, Output Power, Voltage Accuracy, Line Regulation, and Load Regulation.
Important Notes:
️· Derating: The derating curve is crucial for safe and reliable operation at higher temperatures.
️· Pinout: Pay close attention to the single vs. dual output pin assignments when connecting the converter.
️· Specifications Subject to Change: The document clearly states that specifications are subject to change without notice.
1. Overview:
️· Product: BOB3H3 Series Isolated DC-DC Converters
️· Type: Provides DC voltage conversion.
️· Application: Suitable for a wide range of applications needing isolated power.
2. Key Features & Specifications:
️· Input Voltage Ranges:
- Narrow Range: ±10% of nominal
- Wide Range (2:1): (Example: 4.5-9V for 5V nominal, 9-18V for 12V nominal, 18-36V for 24V nominal, 36-75V for 48V nominal)
- Wide Range (4:1): (Example: 9-36V for 24V nominal, 18-75V for 48V nominal)
️· Output Power: Variable, based on input voltage and load.
️· Efficiency: Not explicitly stated, but dependent on input voltage, output load, and operating temperature. See derating curves for details.
️· Switching Frequency: 300kHz (typical)
️· Isolation:
- Input-to-Output Isolation Voltage: (specification)
- Isolation Capacitance: 280pF (typical)
- Isolation Resistance: >10^9 Ohms min.
️· Reliability: Calculated MTBF: 2.53 × 10^6 Hours
️· Physical Dimensions: 1.25 x 0.80 x 0.40 inches (31.75 x 20.32 x 10.16 mm)
️· Weight: 17.2g (0.59oz) typical
3. Electrical Characteristics & Test Configurations:
️· Input Power: P<sub>in</sub> = V<sub>in</sub> * I<sub>in</sub>
️· Output Power: P<sub>out</sub> = V<sub>out</sub> * I<sub>out</sub>
️· Efficiency: Efficiency = (P<sub>out</sub> / P<sub>in</sub>) * 100%
️· Voltage Accuracy: ((V<sub>out</sub> - V<sub>out(nominal)</sub>) / V<sub>out(nominal)</sub>) * 100%
️· Line Regulation:
- Wide Input Range: ((V<sub>out(LL)</sub> - V<sub>out(HL)</sub>) / V<sub>out(LL)</sub>) * 100%
- Narrow Range: ((V<sub>out(+10%)</sub> - V<sub>out(-10%)</sub>) / V<sub>out</sub>) * 100% and ΔVin / Vin(nominal)
️· Load Regulation: ((V<sub>out(FL)</sub> - V<sub>out(NL)</sub>) / V<sub>out(FL)</sub>) * 100%
️· Ripple & Noise: Measured using a specific test circuit (details provided in the document). Bandwidth: 0-20MHz.
4. Mechanical/Pinout Information:
️· Case Material: Nickel-coated copper
️· Base Material: Non-conductive black plastic
️· Pin Assignments (Single vs. Dual Output): (A table is provided in the document detailing pin functions)
5. Environmental Considerations:
️· Temperature Derating: A graph showing the relationship between ambient temperature and allowable power output (specific to the BOB3-48S1H3 model).
6. Testing/Measurement Setup:
️· The document includes detailed descriptions of test configurations for various measurements like Input Power, Output Power, Voltage Accuracy, Line Regulation, and Load Regulation.
Important Notes:
️· Derating: The derating curve is crucial for safe and reliable operation at higher temperatures.
️· Pinout: Pay close attention to the single vs. dual output pin assignments when connecting the converter.
️· Specifications Subject to Change: The document clearly states that specifications are subject to change without notice.
| Part No. | BOB3H3 |
| Manufacturer | BOTHHAND |
| Size | 925 Kbytes |
| Pages | 7 pages |
| Description | Isolated DC-DC Converters |
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