| PartNumber | UCC3946DTR | UCC3946D | UCC3946DG4 |
| Description | Supervisory Circuits Mcrprcsr Supervisor w/Watchdog Timer | Supervisory Circuits Mcrprcsr Supervisor w/Watchdog Timer | IC UP SUPERVISOR W/WDT 8-SOIC |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Supervisory Circuits | Supervisory Circuits | PMIC - Supervisors |
| RoHS | Y | Y | - |
| Type | Voltage Supervisory | Voltage Supervisory | Simple Reset/Power-On Reset |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-8 | SOIC-8 | - |
| Threshold Voltage | Adjustable | Adjustable | - |
| Number of Inputs Monitored | 1 Input | 1 Input | - |
| Output Type | Active-low,Push-pull | Active-low,Push-pull | - |
| Manual Reset | No Manual Reset | No Manual Reset | - |
| Watchdog Timers | Watchdog | Watchdog | - |
| Battery Backup Switching | No Backup | No Backup | - |
| Reset Delay Time | Adjustable | Adjustable | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Series | UCC3946 | UCC3946 | - |
| Packaging | Reel | Tube | Tube Alternate Packaging |
| Features | Watchdog Timer | Watchdog Timer | - |
| Height | 1.58 mm | 1.58 mm | - |
| Length | 5 mm | 5 mm | - |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | - |
| Width | 3.91 mm | 3.91 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Overvoltage Threshold | 1.26 V | 1.26 V | - |
| Undervoltage Threshold | Adjustable | Adjustable | - |
| Chip Enable Signals | No Chip Enable | No Chip Enable | - |
| Moisture Sensitive | Yes | Yes | - |
| Operating Supply Current | 10 uA | 10 uA | - |
| Power Fail Detection | No | No | - |
| Product Type | Supervisory Circuits | Supervisory Circuits | - |
| Factory Pack Quantity | 2500 | 75 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Supply Voltage Min | 2 V | 2 V | - |
| Unit Weight | 0.002561 oz | 0.002561 oz | - |
| Package Case | - | - | 8-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | - | - | 0°C ~ 70°C (TA) |
| Mounting Type | - | - | Surface Mount |
| Supplier Device Package | - | - | 8-SOIC |
| Output | - | - | Push-Pull, Totem Pole |
| Reset | - | - | Active Low |
| Number of Voltages Monitored | - | - | 1 |
| Reset Timeout | - | - | 160 ms Minimum |
| Voltage Threshold | - | - | Adjustable/Selectable |