QMA Dual-Output and High-Voltage-Output Power Modules
The QMA power module family is described by the configuration-specific ratings in the following tables. DC/DC isolated conversion. Maximum output power: 30W. Input undervoltage protection. 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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QMA Dual-Output and High-Voltage-Output Power Modules
The QMA power module family is described by the configuration-specific ratings in the following tables. DC/DC isolated conversion. Maximum output power: 30W. Input undervoltage protection. Refer to the selection table, pin assignments and application guidance for the selected configuration.
- DC/DC isolated conversion
- Maximum output power: 30W
- Input undervoltage protection
- Output overvoltage, overcurrent, short-circuit protection
- Dual output
- Operating temperature (Tc): -55°C to 105°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 |
|---|---|---|---|---|---|---|
| QMA20-18D05SPM | 9 to 36 | ±5 | ±2 | 84 | 470 | 50 |
| QMA20-18D12SPM | 9 to 36 | ±12 | ±0.83 | 86 | 470 | 50 |
| QMA20-18D15SPM | 9 to 36 | ±15 | ±0.66 | 86 | 470 | 50 |
| QMA20-28D05SPM | 16 to 40 | ±5 | ±2 | 83 | 680 | 50 |
| QMA20-28D12SPM | 16 to 40 | ±12 | ±0.83 | 86 | 470 | 50 |
| QMA20-28D15SPM | 16 to 40 | ±15 | ±0.67 | 86 | 470 | 50 |
| QMA30-18D12SPM | 9 to 36 | ±12 | ±1.25 | 86 | 470 | 50 |
| QMA30-18D15SPM | 9 to 36 | ±15 | ±1 | 86 | 470 | 50 |
| QMA30-28D12SPM | 16 to 40 | ±12 | ±1.25 | 86 | 470 | 50 |
| QMA30-28D15SPM | 16 to 40 | ±15 | ±1 | 86 | 470 | 50 |
| QMA15-28S200SPM | 16 to 40 | 50 to 200 | 0.3 to 0.075 | 83/78 | 4.7 | 500 |
| QMA10-28S500SPM | 16 to 40 | 200 to 500 | 0.05 to 0.02 | 88/82 | 2.2 | 1000 |
Technical Data — QMA
| Characteristic | Test temperature | Min. | Typ. | Max. | Unit | Conditions |
|---|---|---|---|---|---|---|
| Input voltage range | Room, High, Low | 9 | 28 | 36 | V | 18 series, see the product selection table |
| Input voltage range | Room, High, Low | 16 | 28 | 40 | V | 28 series, see the product selection table |
| Input surge voltage | Room | — | — | 50 | V | 18/28 series, Vt=100ms, full load |
| No-load power consumption a | Room | — | 0.3 | — | W | nominal input voltage, no output load |
| Output voltage adjustment range | Room, High, Low | 90 | — | 110 | %VO | Io≤ maximum value and Po≤Vo×Iomax |
| Output voltage adjustment range | Room, High, Low | 50 | — | 200 | V | Io≤ maximum value and Po≤Vo×Iomax (200V output) |
| Output voltage adjustment range | Room, High, Low | 200 | — | 500 | V | Io≤ maximum value and Po≤Vo×Iomax (500V output) |
| Line regulation | Room, High, Low | -1 | — | +1 | %VO | full input-voltage range, full load |
| Load regulation | Room, High, Low | -2 | — | +2 | %VO | full load range, balanced dual-output loading |
| Turn-on delay a | Room | — | 25 | 50 | ms | time from power-on until output voltage reaches 10% time |
| Output voltage rise time a | Room | — | 8 | 50 | ms | output voltage from 10% rises to 90% time |
| Enable turn-on delay a | Room | — | 25 | 50 | ms | time from enable assertion until output voltage reaches 10% time |
| Enable logic level (positive logic) | Room | 0 | — | 0.7 | V | no output, see the application guide for control methods |
| Enable logic level (positive logic) | Room | 3.5 | — | 12 | V | output enabled when open or high, see the application guide for control methods |
| Input undervoltage protection | Room | 6 | — | 9.0 | V | half load, 18 series |
| Input undervoltage protection | Room | 11 | — | 15.8 | V | half load, 28 series |
| Output overcurrent protection | Room | 110 | — | — | %IO | hiccup mode, automatic recovery after overcurrent removal |
| Output short-circuit protection | Room | — | — | — | — | hiccup mode, automatic recovery after removal of the short circuit |
| Isolation withstand voltage | Room | - | no breakdown, no flashover; input to output, 1500Vdc/60s/<3.5mA | |||
| Insulation resistance | Room | 100 | — | — | MΩ | 500Vdc, input, output, between each pair of terminals and case |
| Switching frequency | Room | — | 300 | — | kHz | |
| MTBF | Room | — | 1.83 | — | 106h | ensure a good ground plane (GB), 25°C |
| Weight | / | — | 19 | — | g | S case type |
| Weight | / | — | 19.5 | — | g | P case type |
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 QMA30-28D15SPM time, 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.
S variant dimensions (pins facing upward) P variant dimensions (pins facing upward)
Outline & Mechanical Dimensions
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