MAX1617AMEE+T

MAX1617AMEE+T is a remote/local temperature sensor with an SMBus serial interface. It is a precise digital thermometer that reports the temperature of both a remote sensor and its own package. The remote sensor is a diode-connected transistor typically a low-cost, easily mounted 2N3904 NPN type that replaces conventional thermistors or thermocouples. Remote accuracy is ±3°C for multiple transistor manufacturers, with no calibration needed. The remote channel can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected transistor. The 2-wire serial interface accepts standard system management bus (SMBus) write byte, read byte, send byte, and receive byte commands to program the alarm thresholds and to read temperature data. It is used in applications such as desktop and notebook computers, smart battery packs, LAN servers, industrial controls, central office telecom equipment, test and measurement, and multichip modules.

• Two channels measures both remote and local temperatures
• No calibration required, SMBus 2-wire serial interface
• Programmable under/overtemperature alarms, supports SMBus alert response
• Supply voltage range from +3V to +5.5V
• Supply current in auto-convert mode is 70μA maximum at (VCC = +3.3V, TA = 0°C to +85°C)
• Standby supply current is 3μA typical at (VCC = +3.3V, TA = 0°C to +85°C)
• Conversion time is 125ms typical at (VCC = +3.3V, TA = 0°C to +85°C)
• SMBus clock frequency is 100KHz maximum at (VCC = +3.3V, TA = 0°C to +85°C)
• SMBus input capacitance is 5pF typical at (VCC = +3.3V, TA = 0°C to +85°C)
• Operating temperature range from -55°C to +125°C, 16-pin QSOP package

บันทึก

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