GENERAL DESCRIPTION

The SGM8197xQ series is used for high-side currentsense automotive applications with an integrated

amplifier output and an open-drain comparator with a

0.6V reference. The device can sense the voltage

across a current-sense resistor at common mode

voltages from -24V to 105V. There are four different

gains for SGM8197xQ series: 10V/V, 20V/V, 50V/V and

100V/V, and the bandwidth reaches 1200kHz for

SGM8197A1Q (20V/V).

An open-drain comparator and 0.6V voltage reference

are integrated. The 0.6V reference is connected to the

inverting input of comparator, and the current trip point

can be set with the external voltage at the CMPIN pin.

The comparator output can be transparent or latched,

depending on whether the RESET ���������� pin is pulled high or

left floating (or grounded).

The operating supply voltage of SGM8197xQ series is

from 2.7V to 28V, with a typical supply current of

550μA.

The SGM8197xQ series is available in Green SOIC-8

and MSOP-8 packages. It is specified within -40℃ to

+125℃ temperature range.

This device is AEC-Q100 qualified (Automotive

Electronics Council (AEC) standard Q100 Grade 1) and

it is suitable for automotive applications.

FEATURES

● AEC-Q100 Qualified for Automotive Applications

Device Temperature Grade 1

TA = -40℃ to +125℃

● Power Supply Range: 2.7V to 28V

● Quiescent Current: 550μA (TYP)

● Choice of Gains:

 SGM8197A0Q Gain: 10V/V

 SGM8197A1Q Gain: 20V/V

 SGM8197A2Q Gain: 50V/V

 SGM8197A3Q Gain: 100V/V

● High Accuracy: 1.4% (MAX) Gain Error

● Input Common Mode Voltage Range: -24V to 105V

● Bandwidth: 1200kHz (SGM8197A1Q)

● Voltage Reference of the Comparator: 0.6V (TYP)

● Comparator with an Open-Drain Output

● Capability of Latching on the Comparator Output

● Available in Green SOIC-8 and MSOP-8 Packages

APPLICATIONS

AEC-Q100 Grade 1 Applications

Power Management

Notebook Computer

Industrial Current Sensing

Battery Charger

Automotive