Product details

Local sensor accuracy (Max) (+/- C) 1 Type Digital temperature sensors Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 3 Interface type I2C Supply voltage (Max) (V) 26 Supply current (Max) (uA) 1400 Temp resolution (Max) (bits) 13 Features Alert Function, Bi-directional, I2C, Integrated Power Monitor Remote channels (#) 3 Addresses 4 Rating Catalog
Local sensor accuracy (Max) (+/- C) 1 Type Digital temperature sensors Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 3 Interface type I2C Supply voltage (Max) (V) 26 Supply current (Max) (uA) 1400 Temp resolution (Max) (bits) 13 Features Alert Function, Bi-directional, I2C, Integrated Power Monitor Remote channels (#) 3 Addresses 4 Rating Catalog
SOIC (D) 16 59 mm² 9.9 x 6 VQFN (RSA) 16 16 mm² 4 x 4
  • ±1°C REMOTE DIODE SENSORS
  • ±1°C LOCAL TEMPERATURE SENSOR
  • SERIES RESISTANCE CANCELLATION
  • n-FACTOR CORRECTION
  • TEMPERATURE ALERT FUNCTION
  • AVERAGING
  • 12-BIT RESOLUTION
  • DIODE FAULT DETECTION
  • SENSES BUS VOLTAGES FROM 0 V TO +26 V
  • REPORTS CURRENT IN AMPS, VOLTAGE IN VOLTS AND POWER IN WATTS
  • HIGH ACCURACY: 1% MAXIMUM OVER TEMPERATURE
  • WATCHDOG LIMITS:
    • Upper Over-Limit
    • Lower Under-Limit
  • ±1°C REMOTE DIODE SENSORS
  • ±1°C LOCAL TEMPERATURE SENSOR
  • SERIES RESISTANCE CANCELLATION
  • n-FACTOR CORRECTION
  • TEMPERATURE ALERT FUNCTION
  • AVERAGING
  • 12-BIT RESOLUTION
  • DIODE FAULT DETECTION
  • SENSES BUS VOLTAGES FROM 0 V TO +26 V
  • REPORTS CURRENT IN AMPS, VOLTAGE IN VOLTS AND POWER IN WATTS
  • HIGH ACCURACY: 1% MAXIMUM OVER TEMPERATURE
  • WATCHDOG LIMITS:
    • Upper Over-Limit
    • Lower Under-Limit

The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors that include remote sensors, a local temperature sensor, and a high-side current shunt monitor. These system monitors have the capability of measuring remote temperatures, on-chip temperatures, and system voltage/power/current consumption.

The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs. Remote accuracy is ±1°C for multiple IC manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus™ or two-wire write and read commands.

The onboard current shunt monitor is a high-side current shunt and power monitor. It monitors both the shunt drop and supply voltage. A programmable calibration value (along with the TMP512/TMP513 internal digital multiplier) enables direct readout in amps; an additional multiplication calculates power in watts. The TMP512 and TMP513 both feature two separate onboard watchdog capabilities: an over-limit comparator and a lower-limit comparator.

These devices use a single +3 V to +26 V supply, drawing a maximum of 1.4 mA of supply current, and they are specified for operation from –40°C to +125°C.

The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors that include remote sensors, a local temperature sensor, and a high-side current shunt monitor. These system monitors have the capability of measuring remote temperatures, on-chip temperatures, and system voltage/power/current consumption.

The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs. Remote accuracy is ±1°C for multiple IC manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus™ or two-wire write and read commands.

The onboard current shunt monitor is a high-side current shunt and power monitor. It monitors both the shunt drop and supply voltage. A programmable calibration value (along with the TMP512/TMP513 internal digital multiplier) enables direct readout in amps; an additional multiplication calculates power in watts. The TMP512 and TMP513 both feature two separate onboard watchdog capabilities: an over-limit comparator and a lower-limit comparator.

These devices use a single +3 V to +26 V supply, drawing a maximum of 1.4 mA of supply current, and they are specified for operation from –40°C to +125°C.

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Technical documentation

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Type Title Date
* Data sheet Temperature and Power Supply System Monitors datasheet (Rev. A) 03 May 2011
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
Technical article How to select a temperature sensor probe 18 Feb 2016
User guide TMP512/TMP513EVM User's Guide 14 Apr 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Support software

TMP513EVM Software (Rev. B)

SBOC360B.ZIP (108545 KB)
Support software

TMP513EVM Source Code (Rev. B)

SBOC361B.ZIP (3294 KB)
Simulation model

TMP512, TPS513 IBIS Model

SBOM422.ZIP (32 KB) - IBIS Model
Package Pins Download
QFN (RSA) 16 View options
SOIC (D) 16 View options

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