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Analog Devices MAX17681 | Demoboard MAX17681EVKIT
Evaluation Kit for MAX17681 Isolated ±15V or ±12V Output Configuration
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 17-32 V |
| Ausgang 1 | -12 V / 0.05 A |
| Ausgang 2 | 12 V / 0.05 A |
| Ausgang 3 | 24 V / 0.1 A |
| IC-Revision | 1 |
Beschreibung
The MAX17681 is a high-voltage, high-efficiency, iso-buck DC-DC converter designed to provide isolated power up to 3W. The device operates over a wide 4.5V to 42V input and uses primary-side feedback to regulate the output voltage.
The MAX17681 uses peak-current-mode control. The low-resistance, on-chip MOSFETs ensure high efficiency at full load while simplifying the PCB layout.
The device is available in a compact 10-pin (3mm x 2mm) TDFN package. Simulation models are available.
Eigenschaften
- Reduces External Components and Total Cost
- No Opto-Coupler
- Synchronous Primary Operation
- All-Ceramic Capacitors, Compact Layout
- Reduces Number of DC-DC Regulators to Stock
- Wide 4.5V to 42V Input
- 0.9V to 0.96 x VIN Primary Output Voltage
- Delivers Up to 3W Output Power
- Reduces Power Dissipation ◦Peak Efficiency > 90%
- 0.9µA (typ) Shutdown Current
- Operates Reliably in Adverse Industrial Environments ◦Peak and Sink Current-Limit Protection
- ±1.7% Feedback Accuracy
- Programmable EN/UVLO Threshold
- Adjustable Soft-Start
- Overtemperature Protection
- -40°C to +125°C Operation
Typische Anwendungen
- Isolated Fieldbus Interfaces
- Isolated Power Supplies in Medical Equipment
- Floating Power Supply Generation
- Smart Meters
- PLC I/O Modules
