The PAC1934 is a four-channel power/energy monitor with current sensor amplifier and bus voltage monitors that feed high resolution ADCs. Digital circuitry performs power calculations and energy accumulation. The PAC1934 enables energy monitoring with integration periods from 1 ms to up to 36 hours. Bus voltage, sense resistor voltage, and accumulated proportional power are stored in registers for retrieval by the system master or embedded controller.
The sampling rate and energy integration period can be controlled over SMBus or I2C. Active channel selection, one-shot measurements, and other controls are also configurable. The PAC1934 uses real time calibration to minimize offset and gain errors. No input filters are required for this device.
Features
- • 100 mV full scale voltage sense range, 16-bit resolution
- • Bidirectional or unidirectional options
- • Wide Bus Voltage Measurement Range 0V to 32V, 16-Bit Resolution
- • 1% Power Measurement Accuracy Over a Wide Dynamic Range
- • 48-bit power accumulator register for recording data
- • 24-bit accumulator count
Applications
- • WIN10 laptop, tablet, workstation, cell phone
- • Networking
- • Automotive
- • Linux® Systems
- • Linux, Microsoft®, and Cloud Servers
- • Industrial
PAC1934 for Embedded Applications
Product Technical Specifications
EU RoHS
Compliant
ECCN (US)
EAR99
Part Status
Active
HTS
8542.39.00.90
Automotive
Yes
PPAP
Unknown
Type
Monitor
Input Voltage (V)
2.7 to 5.5
Minimum Operating Supply Voltage (V)
2.7
Maximum Operating Supply Voltage (V)
5.5
Maximum Supply Current (mA)
0.585(Typ)
Minimum Operating Temperature (°C)
-40
Maximum Operating Temperature (°C)
85
Supplier Temperature Grade
Industrial
Packaging
Tape and Reel
Mounting
Surface Mount
Package Height
0.48
Package Width
4
Package Length
4
PCB changed
16
Standard Package Name
QFN
Supplier Package
UQFN EP
Pin Count
16
Lead Shape
No Lead