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| PartNumber | BU4940FVE-TR | BU4940G-TR | BU4940F-TR |
| Description | Supervisory Circuits IC CMOS VOLT DETECT | Supervisory Circuits VOLT DETECT .9V-4.8V 5PIN | 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 | VSOF-5 | SSOP-5 | SOP-4 |
| Threshold Voltage | 4 V | 4 V | 4 V |
| 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 | 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 | 0.5 uA | 0.5 uA | 0.5 uA |
| Accuracy | 1 % | 1 % | 1 % |
| Series | BU4940FVE | BU4940G | BU4940F |
| Packaging | Reel | Reel | Reel |
| Brand | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor |
| Overvoltage Threshold | 4.04 V | 4.04 V | 4.04 V |
| Undervoltage Threshold | 3.96 V | 3.96 V | 3.96 V |
| Chip Enable Signals | No Chip Enable | No Chip Enable | No Chip Enable |
| Development Kit | - | - | - |
| Operating Supply Current | 550 nA | 550 nA | 550 nA |
| Pd Power Dissipation | 210 mW | 540 mW | 400 mW |
| Power Fail Detection | No | 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 | 0.7 V |
| Part # Aliases | BU4940FVE | BU4940G | BU4940F |