CMOS power supply support circuit, featuring a fixed +4.3V threshold voltage with 1% accuracy. This surface mountable IC, housed in an SOP-4 package, monitors a single voltage input and provides an active high/low reset output. Operating across a wide temperature range of -40°C to 125°C, it exhibits a low supply current of 550nA and a maximum power dissipation of 400mW.
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Rohm BU4943F-TR technical specifications.
| Accuracy | 1% |
| Package/Case | SOP |
| Max Operating Temperature | 125°C |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 400mW |
| Max Reset Threshold Voltage | 4.343V |
| Min Reset Threshold Voltage | 4.257V |
| Max Supply Current | 1.75uA |
| Max Supply Voltage | 7V |
| Min Supply Voltage | 700mV |
| Mount | Surface Mount |
| Number of Monitored Inputs | 1 |
| Number of Voltages Monitored | 1 |
| Operating Supply Current | 550nA |
| Output | TOTEM-POLE |
| Overvoltage Threshold | 4.343V |
| Package Quantity | 3000 |
| Packaging | Tape and Reel |
| Quiescent Current | 550nA |
| Reset | Active High/Active Low |
| RoHS Compliant | Yes |
| Threshold Voltage | 4.3V |
| Type | Simple Reset/Power-On Reset, Voltage Detector |
| Undervoltage Threshold | 4.257V |
| Watchdog Timer | No |
| RoHS | Compliant |
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