INA700 40 V, 16-Bit, I2C Output Digital Power Monitor in WCSP with 2 mΩ EZShunt™

Technology

1 Features

• Low loss integrated shunt resistor

– Internal resistance: 2 mΩ at TA = 25°C

– Current rating: ±15 A at TA = 25°C

• High-resolution, 16-bit delta-sigma ADC

– Wide common-mode range: –0.3 V to +40 V

– Reports current, bus voltage, power, internal

temperature, energy, and charge

– Programmable conversion time and averaging

• Current monitoring accuracy:

– Total Measurement Error: ±0.5% at 5 A

– Offset current: ±1.5 mA (maximum)

– Gain error: ±0.5% (maximum at 5 A)

– Gain error drift: ±50 ppm/°C (maximum)

• Power monitoring accuracy:

– 0.85% accuracy at 5 A

• Energy and Charge accuracy:

– 1.35% accuracy at 5 A

• Internal monitoring and fault detection

• Precision oscillator: ±0.5% (maximum)

• 2.94-MHz High-Speed I2C interface with 4 pin-

selectable addresses

• Operates from a 2.7-V to 5.5-V supply

– Operational current: 640 µA (typical)

– Shutdown current: 5 µA (maximum)

2 Applications

• Notebook computers

• Smartphones

• Industrial battery packs

• Smart network interface cards (NIC)

• Hardware accelerator cards

3 Description

The INA700 is a digital power monitor with an

integrated shunt resistor along with a 16-bit delta-

sigma ADC specifically designed for current sensing

applications. The device can measure full-scale

currents up to ±15.728 A, over the common-mode

voltage range of –0.3 V to +40 V.

The INA700 reports current, bus voltage, die

temperature, power, energy and charge accumulation

with a precision ±0.5% integrated oscillator, all

while performing the needed calculations in the

background. The integrated temperature sensor is

±3°C accurate over the junction temperature range.

The low offset and gain error drift of the INA700

allows use in systems that do not undergo

temperature calibration during manufacturing.

The device features selectable ADC conversion

times from 50 µs to 4.12 ms as well as sample

averaging from 1x to 1024x, which further helps

reduce the noise of the measured data and allows for

optimization of overcurrent detection windows.

The device is available in a tiny PowerWCSP

(DSBGA) package to minimize the solution size and

maximize thermal performance.

Package Information(1)

PART NUMBER

PACKAGE

PACKAGE SIZE(2)

INA700

YWF (PowerWCSP, 8)

1.319 mm × 1.239 mm

(1)

For all available packages, see the package option

addendum at the end of the data sheet.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

Power

Current

I

2C / SMBus

Interface

Bus Voltage

GND

16 – bit

ADC

V

I

A0

ALERT

SDA

SCL

0.1 µF

Temperature

VS

Supply Voltage

(2.7 V to 5.5 V)

Common-mode Voltage

(-0.3 V to 40 V)

Energy

TI Device

IN+

Charge

IN-

±0.5%

Oscillator

Alert_Diag

Shunt TC

Compensation

Registers

V

I

Simplified Block Diagram

INA700

SBOSAB4A – MAY 2023 – REVISED SEPTEMBER 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.