MAX1619
PRODUCTIONRemote/Local Temperature Sensor with Dual Alarm Outputs and SMBus Serial Interface
Alarm Outputs Manage System Temperature to Ensure Performance, Reliability and Protection
- Part Models
- 2
- 1ku List Price
- Starting From $7.16
Part Details
- Two Channels Measure Both Remote and Local Temperatures
- No Calibration Required
- SMBus 2-Wire Serial Interface
- Programmable Under/Overtemperature Alarms
- Active-Low OVERT Output for Fan Control
- Supports SMBus Alert Response
- Supports Manufacturer and Device ID Codes
- Accuracy
- ±2°C (+60°C to +100°C, local)
- ±3°C (-40°C to +125°C, local)
- ±3°C (+60°C to +100°C, remote)
- 3µA (typ) Standby Supply Current
- 70µA (max) Supply Current in Auto-Convert Mode
- +3V to +5.5V Supply Range
- Write-Once Protection
- Small 16-Pin QSOP Package
The MAX1619 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. The data format is 7 bits plus sign, with each bit corresponding to 1°C, in two's complement format. Measurements can be done automatically and autonomously, with the conversion rate programmed by the user or programmed to operate in a single-shot mode. The adjustable rate allows the user to control the supply-current drain.
The MAX1619 is nearly identical to the popular MAX1617A, with the additional feature of an overtemperature alarm output (active-low OVERT) that responds to the remote temperature; this is optimal for fan control.
Applications
- Central Office Telecom Equipment
- Computers: Desktop, Workstation, Server
- Industrial Controls
- LAN Servers
- Multichip Modules
- Smart Battery Packs/Chargers
- Test and Measurement Equipment
Documentation
Data Sheet 1
Reliability Data 1
Design Note 1
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX1619MEE+ | 16-QSOP-150_MIL | ||
| MAX1619MEE+T | 16-QSOP-150_MIL |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Analog to Digital Converters 1 | ||
| MAX1617A | PRODUCTION | Remote/Local Temperature Sensor with SMBus Serial Interface |
Latest Discussions
No discussions on MAX1619 yet. Have something to say?
Start a Discussion on EngineerZone®