Slide 1: PAC1921: World's First High-Side Current/Power Sensor With 2-Wire Bus & Configurable Analog Output
Announced June 9, 2015 PAC1921: World’s First High-Side Current/Power Sensor With 2-Wire Bus & Configurable Analog Output
Slide 2: Announcing the PAC1921 High-Side Current Sensor
Announcing the PAC1921 High-Side Current Sensor Industry’s first to combine a two-wire digital interface for complete data, with a configurable analog output (power, voltage, or current) for immediate data Measures power, current and voltage to maximize information in prototyping, while minimizi
Slide 3: Current Sensors
Current Sensors Current-sense amplifiers (also called current shunt amplifiers) are special-purpose amplifiers that output a voltage proportional to the current flowing in a power rail. All of Microchip’s current sensors also include a digital interface compatible with I2C™, and report on power
Slide 4: Microchip's Current Sensor Portfolio
Microchip’s Current Sensor Portfolio EMC1701 EMC1702 EMC1704 PAC1710 PAC1720 PAC1921 Current 1 1 1 1 2 1 Sensors Common-Mode 3V-24V 3V-24V 3V-24V 0V-40V 0V-40V 0V-32V Voltage Range Temperature Ambient Ambient Ambient Measurement 1 Remote 3 Remotes Alert & Therm. Address Select
Slide 5: Example Applications
Example Applications Measuring and reporting DC current, voltage, and power for a variety of applications Networking Industrial Automation Power Supplies Servers Power Distribution Computing Announced on June 9, 2015 5
Slide 6: PAC1921 Key Features
PAC1921 Key Features Industry’s first to combine a two-wire interface for complete data with a configurable analog output for immediate data Power, current or voltage info over a single analog output 1% power accuracy over a wide voltage range (0 - 32V) Scalable DAC to feed 1V, 1.5V, 2V, or 3V
Slide 7: Design Challenge 1: Providing Power-Related Values on a Single Analog Output
Design Challenge 1: Providing 3 Power-Related Values on a Single Analog Output PAC1921 Solves Single DAC output uniquely provides information regarding system power consumption: Sense+ Sense- Power 2-Wire Digital Sense voltage (current) PAC1921 Configurable Bus voltage Analog Out One micro
Slide 8: Design Challenge 2: Accurate Measurement for High and Low Current Loads
Design Challenge 2: Accurate Measurement for High and Low Current Loads PAC1921 Solves Wide dynamic range 0V – 32V measurement range 1% power measurement readings Gain for Vsense at 1X-128X & Vbus 1X–32X Integrated second-order ∆Σ ADC Power accumulation register of 39 bits Vsense & Vbu
Slide 9: Design Challenge 3: One Device for Different Microcontrollers
Design Challenge 3: One Device for Different Microcontrollers PAC1921 Solves Analog output can be used for vastly different microcontrollers and ADCs Sense+ Sense- 2-Wire Digital 2-Wire interface configures the output PAC1921 for the full scale of voltages Configurable Analog Out Full-scale ou
Slide 10: Design Challenge 4: Coordination of Multiple Measurements
Design Challenge 4: Coordination of Multiple Measurements PAC1921 Solves Synchronize Measurements with the READ/INT pin Announced on June 9, 2015 10
Slide 11: Design Challenge 5: Measuring Power in the Real World
Design Challenge 5: Measuring Power in the Real World PAC1921 Solves Sampling intervals that are too short can miss dynamic power events: Accessing hard drive Playing MP3 The PAC1921 sample integration period for power consumption will capture changing events 0.9 ms to 1s (11-bit resolution)
Slide 12: PAC1921 Evaluation Board
PAC1921 Evaluation Board Part # ADM00592 PAC1921 $64.99 Available Now Announced on June 9, 2015 12
Slide 13: Available Now
Available Now Product Page http://www.microchip.com/PAC1921 Package 3x3 mm VDFN Price $1.18 each in 5K volumes Announced on June 9, 2015 13
Slide 14: PAC1921 Summary
PAC1921 Summary Industry’s first to combine a two wire interface for complete data with a configurable (power, voltage, or current) analog output for immediate data Power, current or voltage information over a single analog output 1% power accuracy over wide voltage range (0 - 32V) Scales outp
Slide 15: Backup
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Slide 16: PAC1921 Features, Benefits, Results
PAC1921 Features, Benefits, Results Features Benefits Results 1 2-wire high-side current sensor - Low latency for data - Quickly configured analog with analog output - Digital data available on the information SMBus - Complete data availability 2 Analog Output can report power, Multiple data types a