PAC1720

The PAC1720 is a dual high-side bi-directional current sensing monitor with precision voltage measurement capabilities. Each sensor measures the voltage developed across an external sense resistor to represent the high-side current of a battery or voltage regulator. The PAC1720 also measures the SENSE+ pin voltage and calculates average power over the integration period. The PAC1720 can be programmed to assert the ALERT# pin when high and low limits are exceeded for Current Sense and Bus Voltage. Available in a RoHS compliant 3 X 3mm 10-pin DFN package.

The PAC1720 device is good for measuring dynamic power. The long integration time allows for extending system polling cycles without losing any power consumption information. In addition the alert ensures that transient events are captured between the polling cycles.

Features
  • Dual high-side current sensor Current measurement is integrated over 2.5ms to 2.6sec with up to 11-bit resolution 1% current measurement accuracy in positive range Measures VSOURCE voltage
  • Current measurement is integrated over 2.5ms to 2.6sec with up to 11-bit resolution
  • 1% current measurement accuracy in positive range
  • Measures VSOURCE voltage
  • Calculates proportional power
  • VSOURCE voltage range 0V to 40V Bi-directional current sensing
  • Bi-directional current sensing
  • Auto-zero input offset voltage
  • Digital averaging Adjustable sampling time and resolution
  • Adjustable sampling time and resolution
  • 5µA typical Standby current
  • Programmable sense voltage range ±10mV, ±20mV, ±40mV, and ±80mV
  • ±10mV, ±20mV, ±40mV, and ±80mV
  • Power supply range 3.0V to 5.5V
  • Wide temperature operating range: -40°C to +85°C
  • ALERT# output for voltage and current out of limit transients between sampling interval
  • SMBus 2.0 communications interface Address selectable by resistor decode
  • Address selectable by resistor decode
  • Sample time configurable from 2.5ms-320ms With averaging effective sampling times up to 2.6sec
  • With averaging effective sampling times up to 2.6sec
  • 3x3 mm DFN-10 package
  • Notebook and Desktop Computers
  • Industrial
  • Power Management Systems
  • Embedded Applications
Parameter
Parameter Name Value Value
# Current Sensors 2 2
Description Dual Current/DC Power Sensor Dual Current/DC Power Sensor
Full Scale Range (mV) 10, 20, 40, 80 10, 20, 40, 80
Current Measuerment Max Accr (%) ±1 ±1
Effective Sampling Interval min to max (msec) 2.5 to 2600 2.5 to 2600
Bus Voltage Range (V) 0 to +40 0 to +40
# Temperature Monitors (ambient, remote) N/A N/A
Temperature Accuracy Typ / Max (°C) N/A N/A
Alert/Therm 1 1
Interface SMBus/I2C SMBus/I2C
Address Select yes yes
Documents
PAC1710/PAC1720 Data SheetData Sheets02/09/2016475KB
PAC17x0 Current Sensor and Power Monitor EVB (ADM00494) BOMBOM05/13/201521KB
PAC17x0 Current Sensor and Power Monitor EVB (ADM00494) GerbersGerber Files05/13/2015394KB
PAC17x0 Current Sensor and Power Monitor EVB (ADM00494) SchematicsSchematics05/13/20152688KB
PAC1720 Reference Design Part Library, Microsoft Object Library FileSchematics03/24/20116KB
PAC1720 Reference Design Schematic, PDFSchematics03/24/201122KB
PAC1720Silicon Product12/01/20120B
PAC1710 and PAC1720 High-Side Current Sensors Evaluation Board User's GuideUser Guides05/20/20161085KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
PAC1720-1-AIA-TR10VDFN-40C to +85CT/R1.631.361.241.191.18
相关开发工具
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
PAC1720-1-AIA-TR0.0277000.11400010VDFN3x3x0.9NiPdAue4
PAC1710/PAC1720 Data Sheet PAC1720
PAC17x0 Current Sensor and Power Monitor EVB (ADM00494) BOM ADM00494
PAC17x0 Current Sensor and Power Monitor EVB (ADM00494) Gerbers ADM00494
PAC1720 Reference Design Schematic, PDF PAC1720
PAC1710 and PAC1720 High-Side Current Sensors Evaluation Board User's Guide ADM00494