Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsTMP411AQDGKRQ1

Device ID Register

Manufacturer ID Registor

THERM Hysteresis Register

ConsecutiveAlert

Configuration Register

Status Register

Conversion Rate

N-Factor

Correction

One-Shot

D+

Bus Interface

Pointer Register

Resolution Register

Configuration Register

Local Temp Low Limit

Local THERM Limit

Local Temp High Limit

Remote Temp Low Limit

Remote THERM Limit

Remote Temp High Limit

Remote

Temperature

Local

Temperature

Comparators

Interrupt

Configuration

SCL

GND

THERM

ALERT/THERM2

V+

SDA

D−

TMP411-Q1

Remote Temperature Min/Max Register

Local Temperature Min/Max Register

TMP411-Q1

www.ti.com

SBOS527F –DECEMBER 2010–REVISED NOVEMBER 2013

±1°C Remote and Local Temperature Sensor

With N-Factor and Series Resistance Correction

Check for Samples: TMP411-Q1

FEATURES

APPLICATIONS

• Qualified for Automotive Applications

• Automotive

• AEC-Q100 Qualified With the Following

DESCRIPTION

Results

The TMP411-Q1 is a remote temperature sensor

– Device Temperature Grade 1: –40°C to

monitor with a built-in local temperature sensor. The

125°C Ambient Operating Temperature

remote temperature-sensor diode-connected

Range

transistors are typically low-cost, NPN- or PNP-type

– Device HBM ESD Classification Level H2

transistors or diodes that are an integral part of

microcontrollers, microprocessors, or FPGAs.

– Device CDM ESD Classification Level C4B

• ±1°C Remote Diode Sensor

Remote accuracy is ±1°C for multiple IC

manufacturers, with no calibration needed. The two-

• ±1°C Local Temperature Sensor

wire serial interface accepts SMBus write byte, read

• Programmable Non-Ideality Factor

byte, send byte, and receive byte commands to

• Series Resistance Cancellation

program the alarm thresholds and to read

temperature data.

• Alert Function

• Programmable Resolution: 9 to 12 Bits

Features that are included in the TMP411-Q1 are:

series resistance cancellation, programmable non-

• Programmable Threshold Limits

ideality factor, programmable resolution,

• Two-Wire/ SMBus™ Serial Interface

programmable threshold limits, minimum and

• Minimum and Maximum Temperature Monitors

maximum temperature monitors, wide remote

temperature measurement range (up to 150°C), diode

• Multiple Interface Addresses

fault detection, and temperature alert function.

• ALERT/THERM2 Pin Configuration

The TMP411-Q1 is available in an VSSOP-8

• Diode Fault Detection

package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2SMBus is a trademark of Intel Corp.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (40 pages)

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TMP411-Q1 www.ti.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) PARAMETER VALUE UNIT Power supply, VS 7 V Input voltage Pins 2, 3, 4 only –0.5 V to VS + 0.5 V Input voltage Pins 6, 7, 8 only −0.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com ELECTRICAL CHARACTERISTICS (continued) at TA = −40°C to +125°C and VS = 2.7V to 5.5V, unless otherwise noted. PARAMETERS CONDITIONS MIN TYP MAX UNITS 1 μs 0.15 0.4 V 0.1 1 μA SCL falling edge to SDA valid time Digital Outputs VOL Output low voltage IOUT = 6 mA IOH High-level output leakage current ALERT/THERM2 Output low sink current VOUT = VS ALERT/THERM2 forced to 0.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 ELECTRICAL CHARACTERISTICS (continued) at TA = −40°C to +125°C and VS = 2.7V to 5.5V, unless otherwise noted. PARAMETERS CONDITIONS MIN TYP MAX UNITS Power Supply VS Specified voltage range IQ Quiescent current 2.7 0.0625 conversions per second, VS = 3.3 V Eight conversions per second, VS = 3.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com TYPICAL CHARACTERISTICS At TA = 25°C and VS = 5 V, unless otherwise noted. Local Temperature Error (°C) Remote Temperature Error (°C) ° h – – – – – – – – – – ° ° Figure 2. Remote Temperature Error (°C) Remote Temperature Error (°C) Figure 1. R–VS – – – – – – – W W Figure 4. Remote Temperature Error (°C) Remote Temperature Error (°C) Figure 3. – – – – – – – W Figure 5. 6 Figure 6.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 TYPICAL CHARACTERISTICS (continued) m Temperature Error (°C) At TA = 25°C and VS = 5 V, unless otherwise noted. – – – – – Figure 8. m m Figure 7. Figure 9. Figure 10.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com APPLICATION INFORMATION The TMP411-Q1 is a dual-channel digital temperature sensor that combines a local die-temperature measurement channel and a remote junctiontemperature measurement channel in a single VSSOP-8 package. The TMP411-Q1 is two-wire- and SMBus interface-compatible and is specified over an ambient temperature range of −40°C to 125°C.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 SERIES RESISTANCE CANCELLATION TEMPERATURE MEASUREMENT DATA Series resistance in an application circuit that typically results from printed circuit board (PCB) trace resistance and remote line length (see Figure 11) is automatically cancelled by the TMP411-Q1, preventing what would otherwise result in a temperature offset. Temperature measurement data are taken over a default range of 0°C to 127°C for both local and remote locations.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com Table 2.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 Table 3. Decimal Fraction Temperature Data Format (Local and Remote Temperature Low Bytes) REMOTE TEMPERATURE REGISTER LOW BYTE VALUE TEMP (°C) 0.0625°C RESOLUTION LOCAL TEMPERATURE REGISTER LOW BYTE VALUE 0.5°C RESOLUTION 0.25°C RESOLUTION 0.125°C RESOLUTION 0.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com One Shot Register Figure 12. Internal Register Structure Table 4.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 Table 4.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 TEMPERATURE REGISTERS The TMP411-Q1 has four 8-bit registers that hold temperature measurement results. Both the local channel and the remote channel have a high-byte register that contains the most-significant bits (MSBs) of the temperature analog-to-digital converter (ADC) result and a low-byte register that contains the leastsignificant bits (LSBs) of the temperature ADC result.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 Whenever changing between standard and extended temperature ranges, be aware that the temperatures stored in the temperature limit registers are not automatically reformatted to correspond to the new temperature range format. These values must be reprogrammed in the appropriate binary or extended binary format.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com STATUS REGISTER The RHIGH bit reads as 1 if the remote temperature has exceeded the remote high limit and remains greater than the remote high limit less the value in the Hysteresis Register. The LLOW and RLOW bits are not affected by the AL/TH bit. The TMP411-Q1 has a Status Register to report the state of the temperature comparators. Table 5 shows the Status Register bits.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 CONFIGURATION REGISTER If AL/TH = 1, the ALERT/THERM2 pin implements a THERM function (THERM2). In this mode, THERM2 functions similarly to the THERM pin except that the local high limit and remote high limit registers are used for the thresholds. THERM2 goes low when either RHIGH or LHIGH is set. The Configuration Register sets the temperature range, controls shutdown mode, and determines how the ALERT/THERM2 pin functions.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com RESOLUTION REGISTER CONVERSION RATE REGISTER The RES1 and RES0 bits (resolution bits 1 and 0) of the Resolution Register set the resolution of the local temperature measurement channel. Remote temperature measurement channel resolution is not affected. Changing the local channel resolution also affects the conversion time and rate of the TMP411Q1.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 N-FACTOR CORRECTION REGISTER The TMP411-Q1 allows for a different n-factor value to be used for converting remote-channel measurements to temperature. The remote channel uses sequential current excitation to extract a differential VBE voltage measurement to determine the temperature of the remote transistor. Equation 1 relates this voltage and temperature.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com SOFTWARE RESET CONSECUTIVE ALERT REGISTER The TMP411-Q1 may be reset by writing any value to Pointer Register FCh. This restores the power-onreset state to all of the TMP411-Q1 registers as well as aborting any conversion in process and clearing the ALERT and THERM pins.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 Table 11. Allowable THERM Hysteresis Val (continued) TEMPERATURE (°C) 255 THERM HYSTERESIS VALUE TH[11:4] (STANDARD BINARY) (HEX) 1111 1111 FF BUS OVERVIEW The TMP411-Q1 is SMBus interface-compatible. In SMBus protocol, the device that initiates the transfer is called a master, and the devices controlled by the master are slaves.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com SERIAL INTERFACE READ/WRITE OPERATIONS The TMP411-Q1 operates only as a slave device on either the two-wire bus or the SMBus. Connections to either bus are made via the open-drain I/O lines, SDA and SCL. The SDA and SCL pins feature integrated spike suppression filters and Schmitt triggers to minimize the effects of input spikes and bus noise.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 TIMING DIAGRAMS Data Transfer: The number of data bytes transferred between a START and a STOP condition is not limited and is determined by the master device. The receiver acknowledges the transfer of data. The TMP411-Q1 is two-wire and SMBus-compatible. Figure 13 to Figure 17 describe the various operations on the TMP411-Q1. Bus definitions are given as follows. Parameters for Figure 13 are defined in Table 13.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 A. www.ti.com Slave address 1001 100 (TMP411A and TMP411D) shown. Slave address changes for TMP411B and TMP411C. See Ordering Information table for more details. Figure 14. Two-Wire Timing Diagram for Write Word Format (1) Slave address 1001 100 (TMP411A and TMP411D) shown (2) Master should leave SDA high to terminate a single-byte read operation. Figure 15.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 (1) Slave address 1001 100 (TMP411A and TMP411D) shown (2) Master should leave SDA high to terminate a two−byte read operation. Figure 16. Two-Wire Timing Diagram for Two-Byte Read Format (1) Slave address 1001 100 (TMP411A) shown Figure 17.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 HIGH-SPEED MODE For the two-wire bus to operate at frequencies above 400 kHz, the master device must issue a high-speed mode (Hs-mode) master code (00001XXX) as the first byte after a START condition to switch the bus to high-speed operation. The TMP411-Q1 does not acknowledge this byte, but switches the input filters on SDA and SCL and the output filter on SDA to operate in Hs-mode, allowing transfers at up to 3.4 MHz.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 Figure 18.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com SMBUS ALERT FUNCTION UNDERVOLTAGE LOCKOUT The TMP411-Q1 supports the SMBus alert function. When pin 6 is configured as an alert output, the ALERT pin of the TMP411-Q1 may be connected as an SMBus alert signal. When a master detects an alert condition on the ALERT line, the master sends an SMBus alert command (0001 1001) on the bus.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 REMOTE SENSING The TMP411-Q1 is designed to be used with either discrete transistors or substrate transistors built into processor chips and ASICs. Either NPN or PNP transistors can be used, as long as the base-emitter junction is used as the remote temperature sense. Either a transistor or diode connection can also be used; see Figure 11.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com LAYOUT CONSIDERATIONS Remote temperature sensing on the TMP411-Q1 measures very small voltages using very low currents; therefore, noise at the IC inputs must be minimized. Most applications using the TMP411-Q1 have high digital content, with several clocks and logic-level transitions creating a noisy environment. Layout should adhere to the following guidelines: 1. Place the TMP411-Q1 as close to the remote junction sensor as possible.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 REVISION HISTORY The following table summarizes the revisions of the TMP411-Q1 Data Sheet. Note: numbering may vary from previous versions. Table 14.
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TMP411-Q1 SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 www.ti.com Table 14. Revision History (continued) (6) 32 Revision Literature Number Date Notes E SBOS527E November, 2012 See (6) TMP411-Q1 Data Sheet, (SBOS527E): (a) Added "wide remote temperature measurement range (up to 150°C)" back into the Description section. (b) Removed ", which is referred to as standard temperature mode" in first paragraph of Temperature Measurement Data section.
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TMP411-Q1 www.ti.com SBOS527F – DECEMBER 2010 – REVISED NOVEMBER 2013 Table 14. Revision History (continued) (7) Revision Literature Number Date F SBOS527F November, 2013 Notes See (7) TMP411-Q1 Data Sheet, (SBOS527F): (a) Changed device CDM ESD Classification Level from C3B to C4B in FEATURES list item and in the ABSOLUTE MAXIMUM RATINGS table. (b) Deleted TA and Top-Side Marking columns from Table 1. (c) Changed package throughout document from MSOP to VSSOP.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 21-Jan-2014 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 22-Jan-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TMP411AQDGKRQ1 VSSOP DGK 8 2500 330.0 12.4 5.3 3.3 1.3 8.0 12.0 Q1 TMP411BQDGKRQ1 VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TMP411CQDGKRQ1 VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 22-Jan-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TMP411AQDGKRQ1 VSSOP DGK 8 2500 370.0 355.0 55.0 TMP411BQDGKRQ1 VSSOP DGK 8 2500 366.0 364.0 50.0 TMP411CQDGKRQ1 VSSOP DGK 8 2500 366.0 364.0 50.0 TMP411DQDGKRQ1 VSSOP DGK 8 2500 370.0 355.0 55.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.