MAX6846–MAX6849 is an ultra-low power battery monitor with integrated microprocessor (µP) supervisors. The user-adjustable battery monitors are offered with single or dual low-battery output options that can be used to signal when the battery is OK (enabling full system operation), when the battery is low (for low- power system operation), and when the battery is dead (to disable system operation).
The MAX6846‑MAX6849 family are ultra‑low‑power battery monitors with user‑adjustable thresholds and integrated microprocessor reset. They support single‑cell Li⁺ or multicell alkaline/NiCd/NiMH batteries and provide either single or dual low‑battery output options.
Devices operate from 1.8 V to 3.3 V (Vcc) with a Vpp range of 1.6 V to 5.5 V, feature a 150 ms or 1.2 s reset timeout, and are supplied in an 8‑pin SOT‑23 package.
| Operating Voltage (Vpp) | 1.6 V – 5.5 V |
|---|---|
| System Voltage (Vcc) | 1.8 V – 3.3 V |
| Temperature Range | -40 °C – +85 °C |
| Supply Current (typical) | 2.5 µA at 3.6 V |
| Package | 8‑Pin SOT‑23 |
| Reset Timeout Options | 150 ms (min) or 1.2 s (min) |
| Low‑Battery Output Options | Single (MAX6846/6847) or Dual (MAX6848/6849) |
The devices operate with a Vpp range of 1.6 V to 5.5 V.
They are specified for –40 °C to +85 °C.
They are offered in an 8‑pin SOT‑23 package.
Single‑output versions (MAX6846/6847) and dual‑output versions (MAX6848/6849) are available.