Dual High-Side Current Sense Monitor 10-Pin DFN T/R

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.

• 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
• Calculates proportional power
• VSOURCE voltage range 0V to 40V
• Bi-directional current sensing
• Auto-zero input offset voltage
• Digital averaging
• Adjustable sampling time and resolution
• 5µA typical Standby current
• Programmable sense voltage range
• ±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
• Sample time configurable from 2.5ms-320ms
• With averaging effective sampling times up to 2.6sec
• 3x3 mm DFN-10 package