High-side Current-Sense Amplifier with Open-Drain Comparator and Reference.
SGM8197
SGM8197.pdf
SGM8197.pdf
No.13362
FEATURES
? Power Supply Range: 2.7V to 28V
? Quiescent Current: 650μA (TYP)
? Choice of Gains:
SGM8197A0 Gain: 10V/V
SGM8197A1 Gain: 20V/V
SGM8197A2 Gain: 50V/V
SGM8197A3 Gain: 100V/V
? High Accuracy: 1.2% (MAX) Gain Error
? Input Common Mode Voltage Range: -24V to 105V
? Bandwidth: 1200kHz (SGM8197A1)
? Voltage Reference of the Comparator: 0.6V (TYP)
? Comparator with an Open-Drain Output
? Capability of Latching on the Comparator Output
? -40℃ to +125℃ Operating Temperature Range
? Available in Green SOIC-8 and MSOP-8 Packages
DESCRIPTION
The SGM8197 series is used for high-side current-sense 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 SGM8197 series: 10V/V, 20V/V, 50V/V and 100V/V, and the bandwidth reaches 1200kHz for SGM8197A1 (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, dependent on whether the RESET pin is pulled high or is left floating (or grounded).
The operating supply voltage of SGM8197 series is from 2.7V to 28V, with a typical supply current of 650μA.
The SGM8197 series is available in Green SOIC-8 and MSOP-8 packages. It is specified within -40℃ to +125℃ temperature range.
APPLICATION CIRCUIT
PIN CONFIGUTION
