PAC1710 datasheet(1/48 Pages) MICROCHIP

Part #	PAC1710

Description	Single and Dual High-Side Current-Sense Monitor with Power Calculation

PDF	48 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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1 / 48 page

 2015-2016 Microchip Technology Inc.

DS20005386B-page 1

PAC1710/20

Features

• Single and Dual High-Side Current Sensor

- Current measurement is integrated over 2.5 ms

to 2.6 seconds with up to 11-bit resolution

- 1% current measurement accuracy in

positive range

- Measures VSOURCE voltages

•Calculates Power

•VSOURCE Voltage Range 0V to 40V

• Bidirectional Current Sensing

• Auto-Zero Input Offset Voltage

• Digital Averaging

- Adjustable sampling time and resolution

• 5 µA Typical Standby Current

• Programmable Sense Voltage Range

- ±10 mV, ±20 mV, ±40 mV, and ±80 mV

• 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

- Block Read and Block Write

- Address selectable by resistor decode

• Sample Time Configurable from 2.5 ms to 320 ms

- With averaging effective sampling times up to

2.6 seconds

• 10-Lead 3 x 3 mm VDFN package

Applications

• Notebook and Desktop Computers

• Industrial

• Power Management Systems

• Embedded Applications

•Servers

Description

The PAC1710/20 are single and dual high-side

bidirectional current sensing monitors 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 PAC1710/20 also

measures the SENSE+ pin voltage and calculates

average power over the integration period. The

PAC1710/20 can be programmed to assert the ALERT

pin when high and low limits are exceeded for Current

Sense and Bus Voltage.

The PAC1710/20 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.

Available in a RoHS compliant 3 x 3 mm 10-pin VDFN

package.

Package Types

SENSE2+†

SENSE1-

SENSE2-†

SMCLK

SMDATA

1

2

3

4

10

9

8

7 ALERT

VDD

SENSE1+

EP

11

6

5

ADDR_SEL

GND

PAC1710/20

3x3 VDFN*

*Includes Exposed Thermal Pad (EP), see Table 3-1

†PAC1720 only.

Single and Dual High-Side Current-Sense Monitor with

Power Calculation

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