| PIN | NAME | FUNCTION | |
| BUMP (WLP) | PIN (SOT23) | ||
| B1 | 1 | IM | Inverting Input of Comparator |
| B2 | 3 | REF | Internal Voltage Reference Output. Bypass REF pin with a 0.1μF capacitor to GND as close as possible to the device. |
| B3 | 2 | GND | Ground |
| A1 | 6 | IP | Noninverting Input of Comparator |
| A2 | 5 | VDD | VDD Supply Voltage. Bypass VDD with a 0.1μF capacitor to GND as close as possible to the device pin. |
| A3 | 4 | OUT | Open-Drain Output (MAX40001)/Push-Pull Output (MAX40000). For the open-drain version, connect a 100kΩ pullup resistor from OUT to any pullup voltage up to 5.5V. |