EMC1043-5-ACZL-TR SMSC, EMC1043-5-ACZL-TR Datasheet

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... An added feature to the EMC1043 is a function that automatically compares the two external temperature zones and reports the hotter of the two temperatures. Selectable conversion rates and standby mode support low-power operation. The temperature measurement ranges support two data ranges (and formats), -64° ...

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... EMC1043-1-ACZL-TR EMC1043-2-ACZL-TR EMC1043-3-ACZL-TR EMC1043-4-ACZL-TR EMC1043-5-ACZL-TR Evaluation Boards available upon request. (EVB-EMC1043, EVB-EMC1043C) 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2008 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given ...

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... One Shot Register - (0Fh 4.7 Ideality Configuration Registers (27h - 28h 4.8 Beta Configuration Registers (29h - 2Ah 4.9 Product ID Register (EDh 4.10 Manufacturer ID Register (FEh 4.11 Revision Register (FFh Chapter 5 Typical Operating Curves Chapter 6 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.1 Package Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 SMSC EMC1043 3 DATASHEET Revision 1.44 (04-14-08) ...

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... List of Figures Figure 1.1 EMC1043 Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2.1 System Management Bus Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 3.1 EMC1043 System Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 3.2 Block Diagram of Temperature Monitoring Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 3.3 External Diode Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 6.1 8-Pin MSOP Package Outline - 3x3mm Body 0.65mm Pitch Revision 1.44 (04-14-08) 1° ...

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... Table 2.4 Read Byte Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 2.5 Send Byte Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 2.6 Receive Byte Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 3.1 Supply Current vs. Conversion Rate and ADC Averaging Factor . . . . . . . . . . . . . . . . . . . . . . 12 Table 3.2 EMC1043 Temperature Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 4.1 EMC1043 Register Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 4.2 Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 4.3 Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 4 ...

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... SMDATA 8-MSOP 3 6 VDD 4 5 GND Figure 1.1 EMC1043 Pin Diagram Table 1.1 EMC1043 Pin Description DESCRIPTION External Diode 1 Positive (anode) Connection External Diode 1 Negative (cathode) Connection External Diode 2 Positive (anode) Connection External Diode 2 Negative (cathode) Connection Ground Supply Voltage System Management Bus Data - bi-directional data, open drain output ...

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... V =3.0V to 3.6V PARAMETER DC Power Supply Voltage Average Operating Current Internal Temperature Monitor Temperature Accuracy Temperature Resolution SMSC EMC1043 Table 2.1 Absolute Maximum Ratings Table 2.2 Electrical Characteristics = -20°C to +85°C, Typical values 27°C unless otherwise noted A A SYMBOL MIN TYP MAX V 3 ...

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... UNITS CONDITIONS ≤70°C °C 15°C≤T A ≤85°C °C -20°C≤T A ≤85°C -20°C≤T °C A °C nF Connected across external diode Note 2 μ SMDATA = 0.6V kHz 50 ns μ s μ s μ s μ s μ μ s μ *Min = 20+0. *Min = 20+0. SMSC EMC1043 ...

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... System Management Bus Interface Protocol A host controller, such as an SMSC I/O controller, communicates with the EMC1043 via the two wire serial interface named SMBus. The SMBus interface is used to read and write registers in the EMC1043, which is a slave-only device. A detailed timing diagram is shown in ...

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... Attempting to communicate with the EMC1043 SMBus interface with an invalid slave address or invalid protocol results in no response from the device and does not affect its register contents. The EMC1043 supports stretching of the SMCLK signal by other devices on the SMBus but will not perform this operation itself ...

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... The average power dissipation will depend on the conversion rate. When the EMC1043 is not actively converting a channel, it goes into a lower power wait state. Standby Mode (power-up default this mode, the EMC1043 is put into a low power state. In the standby mode, temperature monitoring is disabled. The device will still respond to SMBus commands ...

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... Normal Mode (power-up default this mode of operation, the EMC1043 continuously samples and updates all of its temperature channels. Hotter of Two Mode - In this mode, the EMC1043 continuously samples and then compares the two remote zones. The hotter of the two remote zones is loaded into the External Diode 2 Data Registers ...

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... The EMC1043-1, EMC1043-2, EMC1043-3 and EMC1043-4 are designed to work with the PNP substrate transistor in a CPU. The External Diode 2 channel in the EMC1043-5 has beta compensation disabled by default. The external diodes in all versions of the EMC1043 are compatible with a broad range of thermal diodes that may be connected as shown in using diode-connected transistors as the external diodes). ...

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... Revision 1.44 (04-14-08) 1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones Typical remote discrete PNP transistor i.e. 2N3906 Table 3.2 14 DATASHEET Datasheet Typical remote discrete NPN transistor i.e. 2N3904 Section 4.2. shows the default and extended SMSC EMC1043 ...

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... Resistance Error Correction (REC) Resistance error correction is an automatic feature that eliminates the need to characterize and compensate for series resistance in the external diode lines. The EMC1043 corrects for as much as 100 ohms of series resistance. When using a temperature sensor that does not include resistance error correction, voltage developed across the parasitic resistance in the external diode path produces an error in the reported temperature. The error introduced by this resistance is approximately +0.7° ...

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... Diode Faults The EMC1043 detects a fault if the DP pin is left floating or is shorted to VDD. In the case of a diode fault, the corresponding status bit will be set and the output data will be set at 400h. Revision 1.44 (04-14-08) 1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones 4 ...

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... Byte - Legacy Format FAh N/A R External Diode 1 High Byte - Extended Format FBh N/A R External Diode 1 Low Byte - Extended Format FCh N/A R External Diode 2 HIgh Byte - Extended Format Table 4.1 EMC1043 Register Set SYMBOL INTHBL Sign INTLBL 0.5 0.25 0.125 ET1HBL Sign 64 32 ...

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... R/W External Diode 1 Ideality Correction Factor 28h 28h R/W External Diode 2 Ideality Correction Factor 29h 29h R/W External Diode 1 Beta Configuration Table 4.1 EMC1043 Register Set (continued) SYMBOL ET2LBE 0.5 0.25 0.125 Status and Control STS Busy - - HOTT ER CFG ...

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... VDD supply surpasses the POR level as specified in the electrical characteristics. Any reads to undefined registers will return 00h. Writes to undefined registers will not have an effect. The EMC1043 uses an interlock mechanism that will update the Low byte of a particular monitor when the High Byte is read. This prevents changes in register content when the ADC updates between successive reads. ...

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... Config - STANDBY 09h Write The Configuration Register controls the basic functionality of the EMC1043. The bits are described below: Bit 6 - STANDBY- controls the ADC conversions and power modes of the part. '0' - The device is in the run operating mode. The ADC is converting at the user-programmed conversion rate ...

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... CFG2 - - The Configuration 2 Register controls the basic functionality of the EMC1043 that is NOT compatible with the EMC1023. Bit 3 - MAX_RES - controls the external diode conversion time during dynamic averaging. Although the dynamic averaging may be used to increase the ADC resolution, only 11 bits of data are available in the temperature registers. ‘ ...

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... SMSC. Revision 1.44 (04-14-08) 1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones Table 4.6 One Shot Registers DATASHEET Datasheet DEFAULT 00h DEFAULT 12h (1.008 12h (1.008) SMSC EMC1043 ...

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... SMSC EMC1043 Table 4.8 Ideality Factor Look Up Table SETTING FACTOR 011000 1.0159 011001 1.0173 011010 1.0186 011011 1.0199 011100 1.0213 011101 1.0226 011110 1.0240 011111 1 ...

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... The Beta Configuration Registers have a factory programmed power-on default based on the beta of the PNP substrate transistor that is being monitored as the external diode. The default value of the Diode 2 Beta Configuration Register of EMC1043-5 is 07h (disabled). The beta compensation circuit is able to compensate for beta variation within a given range. The beta configuration register is configured to the proper range to match the CPU to be monitored ...

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... ID number for each version of the EMC1043. 4.10 Manufacturer ID Register (FEh) ADDR REGISTER B7 FEh SMSC 0 1 The Manufacturer ID register contains an 8 bit word that identifies the manufacturer of the EMC1043 (SMSC = 5Dh). 4.11 Revision Register (FFh) ADDR REGISTER B7 FFh REV - - The Revision register contains a 4 bit word that identifies the die revision ...

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... Tem perature Error vs. External Diode Tem perature 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2 DATASHEET Datasheet = 27°C, VDD = 3.3V) DIODE 1000 2000 3000 4000 Filter Capacitor (pF) (2N3904, TA=42.5°C, VDD = 3.3V 100 125 External Diode Tem perature (°C) SMSC EMC1043 ...

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... DIODE 1.0 REC Disabled 0.8 0.5 0.3 REC Active 0 Series Resitance ( Ω ) SMSC EMC1043 Standby Current vs. Supply Voltage 3.0 2.5 2.0 1.5 1.0 0.5 0.0 2.9 3.1 100 Temperature Error vs. CPU Temperature Typical 65nm CPU from major vendor (TA = 27°C, VDD = 3.3V, BETA = 011, C ...

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... Overall Package Height 0.15 0.95 Body Thickness 3.20 5.15 3.20 0.23 Lead Foot Thickness 0.80 Lead Foot Length o 8 Lead Foot Angle 0.38 0.10 28 DATASHEET Datasheet REMARKS Standoff X Body Size Y Span Y body Size Lead Length Lead Pitch Lead Width Coplanarity SMSC EMC1043 ...

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... Package Markings All devices will be marked on the first line of the top side with “1043”. On the second line, they will be marked with the appropriate -X number (-1, -2, etc), the Functional Revision “B” and Country Code (CC) . SMSC EMC1043 29 DATASHEET Revision 1.44 (04-14-08) ...