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| PartNumber | BU4909F-TR | BU4909FVE-TR | BU4909G-TR |
| Description | Supervisory Circuits IC CMOS VOLT DETECT | Supervisory Circuits IC CMOS VOLT DETECT | Supervisory Circuits IC CMOS VOLT DETECT |
| Manufacturer | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor |
| Product Category | Supervisory Circuits | Supervisory Circuits | Supervisory Circuits |
| RoHS | Y | Y | Y |
| Type | Voltage Detectors | Voltage Detectors | Voltage Detectors |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOP-4 | VSOF-5 | SSOP-5 |
| Threshold Voltage | 900 mV | 900 mV | 900 mV |
| Number of Inputs Monitored | 1 Input | 1 Input | 1 Input |
| Output Type | CMOS | CMOS | CMOS |
| Manual Reset | No Manual Reset | No Manual Reset | No Manual Reset |
| Watchdog Timers | No Watchdog | No Watchdog | No Watchdog |
| Battery Backup Switching | No Backup | No Backup | No Backup |
| Reset Delay Time | No | No | - |
| Supply Voltage Max | 7 V | 7 V | 7 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Quiescent Current | 0.3 uA | 0.3 uA | - |
| Accuracy | 1 % | 1 % | 1 % |
| Series | BU4909F | BU4909FVE | BU4909G |
| Packaging | Reel | Reel | Reel |
| Brand | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor |
| Overvoltage Threshold | 0.909 V | 0.909 V | - |
| Undervoltage Threshold | 0.891 V | 0.891 V | - |
| Chip Enable Signals | No Chip Enable | No Chip Enable | - |
| Development Kit | - | - | - |
| Operating Supply Current | 550 nA | 550 nA | 550 nA |
| Pd Power Dissipation | 400 mW | 210 mW | 540 mW |
| Power Fail Detection | No | No | - |
| Product Type | Supervisory Circuits | Supervisory Circuits | Supervisory Circuits |
| Factory Pack Quantity | 3000 | 3000 | 3000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Supply Voltage Min | 0.7 V | 0.7 V | 0.9 V |
| Part # Aliases | BU4909F | BU4909FVE | BU4909G |