EMC1702 High-Side Current-Sense and Dual 1C Temperature Monitor General Description Features The EMC1702 is a combination high-side current sensing High-side current sensor Bi-directional current measurement device with precision temperature measurement. It Measures source voltage and indicates power ratio measures the voltage developed across an external sense 1% current measurement accuracy resistor to represent the high-side current of a battery or Integrated over 82ms to 2.6sec with 11-bit resolution voltage regulator. It also measures the source voltage and 3V to 24V bus voltage range uses these measured values to present a proportional Independent hardware set instantaneous current peak power calculation. The EMC1702 contains additional bi- detector directional peak detection circuitry to flag instantaneous Software controls to program time duration and current spikes with programmable time duration and magnitude threshold magnitude threshold. Finally, the EMC1702 includes an Power supply options external diode channel for temperature measurement as Bus or separately powered for low voltage operation well as an internal diode for ambient temperature Wide temperature operating range: -40C to +85C measurements. One external temperature monitor The temperature measurement includes advanced features 1C accuracy (20C < T < 110C) with 0.125C DIODE such as Resistance Error Correction (REC), Beta resolution Compensation (to support CPU diodes requiring the Ideality factor setting BJT/transistor model including 45nm and 65nm Support for 45nm and 65nm CPU diodes requiring the processors), and automatic diode type detection. BJT/transistor model w/ beta compensation Determines external diode type and optimal settings Both current sensing and temperature monitoring include Resistance Error Correction two tiers of protection: one that can be masked and causes Internal temperature monitor the ALERT pin to be asserted, and the other that cannot be 1C accuracy (-5C < T < 85C) A masked and causes the THERM pin to be asserted. ALERT and THERM outputs for temperature, voltage, Applications and out-of-current limit reporting SMBus 2.0 interface Notebook and Desktop Computers Pin-selectable SMBus Address Industrial Block Read and Write Power Management Systems Available in a 12-pin 4mm x 4mm QFN RoHS Compliant Embedded Applications Package Block Diagram Peak Detection DP External Temp Current Limits ADDR SEL Diode DN SMBus SMCLK 13 - 15 bit Current Registers Slave ADC Analog Protocol SMDATA Mux Configuration Power Register ALERT Internal Temp THERM Diode 11 - 15 bit Voltage and ADC Temp Registers Voltage and Temp Limits 2020 Microchip Technology Inc. DS20006455A SENSE+ SENSE- DUR SEL TH SELEMC1702 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: