DATEL 3.3 Volts @ 30 Amps 100 Watt, DC/DC Converters Single Output UHP Models is a DATEL DC/DC converter for low-voltage/high-current applications. This converter uses a full-bridge, fixed-frequency topology with synchronous output rectification to achieve an efficiency of 89%. Additionally, the converter uses an open-frame package that allows unrestricted air flow, reducing internal component temperatures, allowing operation at elevated ambient temperatures. This DC/DC provides output trim, sense pins and primary side on/off control (available with positive or negative logic) or sync. Standard features also include input overvoltage and undervoltage shutdown circuitry, output overvoltage protection, output short-circuit and current limiting protection and thermal shutdown. All devices meet IEC950, UL1950 and EN60950 safety standards and carry CE certification.
The UHP‑3.3/30 series from DATEL provides a compact, open‑frame DC/DC converter delivering 3.3 V at up to 30 A. It uses surface‑mount technology and planar magnetics, offering 89 % efficiency, 1500 Vdc isolation, and a lightweight 2.24 oz package (2.3" × 2.4" × 0.47").
Key specifications include an input voltage range of 36‑75 V, over‑voltage, under‑voltage, short‑circuit and thermal shutdown protection, and optional trim and sync functions. The datasheet contains ordering information, pin‑out details, and trim adjustment procedures illustrated in figures.
| Output Voltage | 3.3 V |
|---|---|
| Output Current | 30 A |
| Input Voltage Range | 36 V‑75 V |
| Efficiency | 89 % |
| Isolation Voltage | 1500 Vdc |
| Dimensions | 2.3" × 2.4" × 0.47" |
| Weight | 2.24 oz (63.5 g) |
| Input Overvoltage Protection | Continuous 81 V, Transient 100 V |
| Output Overvoltage Protection | 77‑81 V |
| Operating Temperature Range | -40 °C to +120 °C |
| Switching Frequency | 350 kHz (+35 kHz) |
The input voltage range is 36 V to 75 V.
Output voltage can be trimmed via the trim pin (pin 7) using a trim potentiometer or fixed resistors as shown in Figures 2‑4.
The converter achieves up to 89 % efficiency.