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| PartNumber | BU4227F-TR | BU4227FVE-TR | BU4227FTR |
| Description | Supervisory Circuits LOW VOLT DETECT VOLT 2.9V | Supervisory Circuits LOW VOLT DETECT VOLT 2.9V | Processor Supervisors |
| Manufacturer | ROHM Semiconductor | ROHM Semiconductor | - |
| Product Category | Supervisory Circuits | Supervisory Circuits | - |
| RoHS | Y | Y | - |
| Type | Voltage Detectors | Voltage Detectors | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOP-4 | HVSOF-5 | - |
| Threshold Voltage | 2.7 V | 2.7 V | - |
| Number of Inputs Monitored | 1 Input | 1 Input | - |
| Output Type | Open Drain | Open Drain | - |
| Manual Reset | No Manual Reset | No Manual Reset | - |
| Watchdog Timers | No Watchdog | No Watchdog | - |
| Battery Backup Switching | No Backup | No Backup | - |
| Reset Delay Time | Adjustable | Adjustable | - |
| Supply Voltage Max | 7 V | 7 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Accuracy | 1 % | 1 % | - |
| Series | BU42(43)xxF | BU42(43)xxFVE | - |
| Packaging | Reel | Reel | - |
| Brand | ROHM Semiconductor | ROHM Semiconductor | - |
| Operating Supply Current | 550 nA | 550 nA | - |
| Pd Power Dissipation | 400 mW | 210 mW | - |
| Product Type | Supervisory Circuits | Supervisory Circuits | - |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Supply Voltage Min | 0.9 V | 0.9 V | - |
| Part # Aliases | BU4227F | BU4227FVE | - |