Overview of this Hi-link B2409S-2WR3 isolated dc converter
Features
Specification
Main use of this 24V to 9V 2W 222mA Hi-link Dc Dc converter
Environment Condition
| Project name | Qualification | Unit | Notes |
| Working environment temperature | -40—+85 | ℃ | |
| Storage temperature | -40—+125 ℃ | ℃ | |
| Relative humidity | 5—95 | % | |
| Heat dissipation mode | natural cooling | ||
| Atmospheric pressure | 80—106 Kpa | Kpa | |
| Ripple & Noise | 30/80(max) | Mvp-p |
Input Characteristics
| Item | Working conditions | Min. | Typ. | Max. | Unit |
| Input current (full load/no load) | 5VDC Input Series | — | 454/5 | –/10 | m’A |
| 9VDC Input Series | — | 250/5 | –/10 | ||
| 12VDC Input Series | — | 186/2 | –/5 | ||
| 15VDC Input Series | — | 148/2 | –/4 | ||
| 24VDC Input Series | — | 92/1 | –/2 | ||
| Reflection ripple current | — | 15 | — | m’A | |
| Impulse voltage | 3.3VDC Input Series | -0.7 | — | 5 | VDC |
| 5VDC Input Series | -0.7 | — | 9 | ||
| 9VDC Input Series | -0.7 | — | 15 | ||
| 12VDC Input Series | -0.7 | — | 18 | ||
| 15VDC Input Series | -0.7 | — | 21 | ||
| 24VDC Input Series | -0.7 | — | 30 | ||
| Input filter type | Capacitance filter type | ||||
| Hot plugged | Non-support | ||||
Output Characteristics
| Project name | Working and testing condition | Min. | Typ. | Max. | Unit | |
| Output load | load percentage | 10 | — | 100 | % | |
| Output Voltage Accuracy | See Error Envelope Curve | — | — | ±15.0 | % | |
| Linear adjustment rate | Input voltage variation ±1% | 3.3V Input | — | — | ±1.5 | % |
| others | — | — | ±1.2 | % | ||
| Load adjustment rate | 10%~100% load | 3.3VDC Output | — | 18 | — | % |
| 5VDC Output | — | 12 | — | % | ||
| 9VDC Output | — | 8 | — | % | ||
| 12VDC Output | — | 7 | — | % | ||
| 15VDC Output | — | 6 | — | % | ||
| 24VDC Output | — | 5 | — | % | ||
| Ripple & Noise | Pure resistive load, 20HMz bandwidth, peak-to-peak | — | 30 | 80 | mVp-p | |
| Temperature Drift Coefficient | Full load | — | — | ±0.03 | %/℃ | |
| Output short circuit protection | Continuous short circuit protection, automatic recovery | — | ||||
| Notes: Ripple and Noise Test Methods Twisted Pair Test Method | ||||||
Typical Application Circuits
EMC parameter recommendation
| Component No. | Function | Recommended value |
|  Cin Capacitance | Filter capacitor | 4.7μA/50V |
| Cout Capacitance | Filter capacitor | Refer to usual application |
| Lin inductance | Filter inductance | Inductance: 4.7uH |
| Lout inductance | Cin Capacitance | Inductance: 4.7uH |
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