PAC1934T-I/J6CX

The PAC1934 device is a four-channel energy monitor, with bus voltage monitor and current sense amplifiers that feed high-resolution ADCs. Digital circuitry performs power calculations and energy accumulation. This enables energy monitoring with integration periods from 1 ms up to 36 hours or longer. 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 by SMBus or I2C.

• High-side current monitor
• Wide bus voltage range for voltage monitor
• Real time auto-calibration of offset and gain errors for voltage and current, no user adjustment required
• On-chip accumulation of 28 Bit power results for energy measurement
• SMBus address - 16 options, set with Resistor
• No input filters required