MAX6655MEE+ by Analog Devices

Dual Remote/Local Temperature Sensors and Four-Channel Voltage Monitors


The MAX6655/MAX6656 are precise voltage and temperature monitors. The digital thermometer reports the temperature of two remote sensors and its own die temperature. The remote sensors are diode-connected transistors—typically a low-cost, easily mounted 2N3906 PNP type—that replace conventional thermistors or thermocouples. Remote accuracy is ±1°C for multiple transistor manufacturers with no calibration necessary. The remote channels can also measure the die temperature of other ICs, such as microprocessors, that contain a substrate-connected PNP with its collector grounded and its base and emitter available for temperature-sensing purposes. The temperature is digitized with 11-bit resolution. The MAX6655/MAX6656 also measure their own supply voltage and three external voltages with 8-bit resolution. Each voltage input's sensitivity is set to give approximately 3/4-scale output code when the input voltage is at its nominal value. The MAX6655 operates at +5V supply and its second voltage monitor is 3.3V. The MAX6656 operates on a +3.3V supply and its second voltage monitor is 5V. The 2-wire serial interface accepts standard SMBus™ Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read data. The MAX6655/MAX6656 also provide SMBus alert response and timeout functions. The MAX6655/MAX6656 measure automatically and autonomously, with the conversion rate programmable. The adjustable rate allows the user to control the supply current. In addition to the SMBus active-low ALERT output, the MAX6655/MAX6656 feature an active-low OVERT output, which is used as a temperature reset that remains active only while the temperature is above the maximum temperature limit. The active-low OVERT output is optimal for fan control or for system shutdown.

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Prices starting from US$4.18

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Features

Three Temperature Channels Two Remote PN Junctions One Local Sensor
Two Remote PN Junctions
One Local Sensor
Four Voltage Channels +12V, +5V, +3.3V, +2.5V Three External Monitors One Internal Supply Monitor
+12V, +5V, +3.3V, +2.5V
Three External Monitors
One Internal Supply Monitor
11-Bit, 0.125°C Resolution
High Accuracy: ±1°C Over +60°C to +100°C Temperature Range
Programmable Under/Over-Threshold Alarms
Programmable Power-Saving Mode
No Calibration Required
SMBus/I²C-Compatible Interface
Active-low OVERT Output for Fan Control and System Shutdown

Specifications

Sensor Type Remote
# Channels Two
Interface 2-Wire/I2C/SMBus
Alarm Output AlertOvert
Functions Remote & Local SensorVoltage Monitor
Accuracy (±°C) 1
Parasite Pwr. No
Temp. Thresh. Programmable
Temp. Resolution (bits) 11
Oper. Temp. (°C) -55 to +125
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 4.29


MAX6655MEE+ Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 1DEG C QSOP-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Output Type Open Drain
Sensing Accuracy Range ± 1°C
Sensing Temperature Min -55°C
Sensing Temperature Max 125°C
Sensor Case Style QSOP
No. of Pins 16Pins
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Dual Remote/Local Temperature | Analog Devices
Temperature Sensor, 1Deg C, Qsop-16 | Newark Electronics
TEMPERATURE SENSOR, 1DEG C, QSOP-16 | element14
Temp Sensor Digital Serial (2-Wire) 16-Pin QSOP Tube | Avnet Asia

Frequently Asked Questions

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Is the MAX6655MEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Newark Electronics, element14, Avnet Asia and Farnell have stock available or on a lead time for MAX6655MEE+ .

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