NCT3933U
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the NCT3933U family does
This Nuvoton application note covers the NCT3933U, a 3-channel SMBus 7-bit sink/source current DAC. The document serves as a comprehensive guide for integrating this device into electronic designs. It specifically addresses the application of precisely controlling current output through digital interfaces. The text details the chip's features, block diagram, pin configuration, and functional description. It also includes electrical characteristics, typical operation graphs, and ordering information. With 26 pages, it provides engineers with the necessary data to implement the NCT3933U effectively in their projects.
NCT3933U datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | 500 µA | — | 1.5 mA | All IOUT = 0A, VCC = 5VSCL = SDA = 0V or 5V; Supply Input Voltage | Nuvoton datasheet, p. 16 — 9.4. DC Characteristics |
| output current | -5 µA | — | — | IOUT = 0uA ~ 100uA, VOUT(1) = 0.8V; Current DAC Output | Nuvoton datasheet, p. 17 — 9.4. DC Characteristics |
| supply voltage range | 3 V | — | 5.5 V | Supply Input Voltage | Nuvoton datasheet, p. 16 — 9.4. DC Characteristics |
| operating temperature | -20 °C | — | 125 °C | 9.3. Recommended Operating Conditions | Nuvoton datasheet, p. 16 — 9.3. Recommended Operating Conditions |
| power dissipation | — | — | 400 mW | 9.2. Thermal Information | Nuvoton datasheet, p. 16 — 9.2. Thermal Information |
| rise time | — | — | 1 µs | 9.5. AC Characteristics | Nuvoton datasheet, p. 18 — 9.5. AC Characteristics |
| fall time | — | — | 300 ns | 9.5. AC Characteristics | Nuvoton datasheet, p. 18 — 9.5. AC Characteristics |
| output voltage low | 2.7 V | — | — | CONDITIONS = 5.5; SMBUS Interface | Nuvoton datasheet, p. 17 — 9.4. DC Characteristics |