Power modules – QDB
The QDB power module family is described by the configuration-specific ratings in the following tables. DC/DC isolated conversion. Maximum output power: 5W. Operating temperature (Tc): -55°C to 125°C. Refer to the selection table, pin assignments and application guidance for the selected configuration.
Input voltage (V)
Output voltage (V)
Output current (A)
Ratings apply to the selected configuration. See the datasheet for test conditions and model designation notes.
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Power modules - QDB
The QDB power module family is described by the configuration-specific ratings in the following tables. DC/DC isolated conversion. Maximum output power: 5W. Operating temperature (Tc): -55°C to 125°C. Refer to the selection table, pin assignments and application guidance for the selected configuration.
- DC/DC isolated conversion
- Hermetically sealed steel case
- Maximum output power: 5W
- Operating temperature (Tc): -55°C to 125°C
- Storage temperature: -55°C to 125°C
Product Selection
| Model | Input voltage (V) | Output voltage (V) | Output current (A) | Efficiency (%) Typical | Capacitive load (µF) max. | Ripple (mV) Typical |
|---|---|---|---|---|---|---|
| QDB2-5S05SG | 4.6 to 9.0 | 5 | 0.4 | 81 | 220 | 30 |
| QDB4-5S05SG | 4.6 to 9.0 | 5 | 0.8 | 75 | 220 | 50 |
| QDB5-5S15SG | 4.6 to 9.0 | 15 | 0.33 | 77 | 220 | 90 |
| QDB2-5D12SG | 4.6 to 5.5 | ±12 | 0.083 | 75 | 220 | 50 |
| QDB4-18S3R3SG | 9 to 36 | 3.3 | 1.22 | 76 | 470 | 30 |
| QDB5-18S05SG | 9 to 36 | 5 | 1.0 | 78 | 470 | 40 |
| QDB5-28S05SG | 16 to 40 | 5 | 1.0 | 80 | 470 | 35 |
| QDB5-28S15SG | 16 to 40 | 15 | 0.33 | 82 | 220 | 40 |
| QDB5-28D15SG | 16 to 40 | ±15 | 0.167 | 80 | 220 | 90 |
Technical Data — QDB
| Characteristic | Test temperature | Min. | Typ. | Max. | Unit | Conditions |
|---|---|---|---|---|---|---|
| Input voltage range | Room, High, Low | 4.6 | 5 | 9 | V | 4.6V to 5.5V, 4.6V to 9.0V input-voltage series, see the product selection table |
| Input voltage range | Room, High, Low | 9 | 28 | 36 | V | 9V to 36V input-voltage series, see the product selection table |
| Input voltage range | Room, High, Low | 16 | 28 | 40 | V | 16V to 40V input-voltage series, see the product selection table |
| Input surge voltage | Room | — | — | 50 | V | 9V to 36V, 16V to 40V input-voltage series, Vt=1s, full load |
| Input surge voltage | Room | — | — | 6 | V | 4.6V to 5.5V input-voltage series, Vt=1s, full load |
| Input surge voltage | Room | — | — | 10 | V | 4.6V to 9.0V input-voltage series, Vt=1s, full load |
| Line regulation | Room, High, Low | -2 | — | +2 | %VO | full input-voltage range, full load |
| Load regulation | Room, High, Low | -2 | — | +2 | %VO | full load range |
| Enable logic level (positive logic) | Room | 0 | — | 0.5 | V | no output, see the application guide for control methods |
| Enable logic level (positive logic) | Room | 5.0 | — | 12.0 | V | output enabled when open or high, see the application guide for control methods |
| Turn-on delay a | Room | — | — | 30 | ms | time from power-on until output voltage reaches 10% time |
| Output voltage rise time a | Room | — | — | 20 | ms | output voltage from 10% rises to 90% time |
| Insulation resistance | Room | 100 | — | — | MΩ | 500Vdc, input, output, between each pair of terminals and case |
| Switching frequency | Room | — | 390 | — | kHz | |
| Weight | — | 8 | 11 | 13 | g |
Note: 1, for other package types or temperature-screening grades, use the corresponding model designation rules when ordering, contact technical support for details; 2, electrical data and mechanical dimensions in this manual are for product selection reference, the detailed product specification governs the final requirements; 3, see the typical application circuit for the ripple measurement method.
a: typical model QDB5-28S15SG parameter values, values may differ for other models, contact technical support for details;
Module dimensions are shown below, for dimensions without an explicit tolerance, for dimensions specified in X.X format, the dimensional tolerance is ±0.5mm;
dimensions specified in X.XX format, the dimensional tolerance is ±0.25mm.
Outline & Mechanical Dimensions
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