MAX6622 is a 5-channel precision temperature monitor from Maxim that can monitor its own temperature and up to 4 external diode-connected transistors. All temperature channels have programmable alert thresholds. Channels 1 and 4 also have programmable overtemperature thresholds. When the measured temperature of a channel exceeds the respective threshold, a status bit is set in one of the status registers. Two open-drain outputs, OVERT and ALERT, assert corresponding to these bits in the status register. The 2-wire serial interface supports the standard system management bus (SMBus™) protocols: write byte, read byte, send byte, and receive byte for reading the temperature data and programming the alarm thresholds. The MAX6622 is specified for a -40°C to +125°C operating temperature range and is available in a 16-pin TSSOP package.
The MAX6622 is a precision multichannel temperature monitor that measures its own temperature and up to four external diode‑connected transistors. It provides programmable alert thresholds for each channel and over‑temperature thresholds for channels 1 and 4, with open‑drain ALERT and OVERT outputs for system protection.
Communication is via a standard 2‑wire SMBus interface supporting write, read, send and receive byte protocols. The device is supplied in a 16‑pin TSSOP package, operates from 3.0 V to 5.5 V, and includes a standby mode that reduces supply current to about 30 µA.
| Operating Temperature Range | -40 °C to +125 °C |
|---|---|
| Supply Voltage (VCC) | 3.0 V to 5.5 V |
| ALERT Output Type | Active‑Low, Open‑Drain |
| OVERT Output Type | Active‑Low, Open‑Drain |
The MAX6622 provides five temperature channels: one local sensor and four remote diode‑connected channels.