The SGM8191 is a high voltage and high precision high-side current-sense amplifier which integrates voltage reference and comparator. The comparator has latching function which can control the comparator output transparent or latched by the latch control pin. The comparator also has power-on reset capability. The comparator has independent input and open-drain output, and its trip point can be set with external resistors. The gain of amplifier is also determined by external resistors.
The SGM8191 has typically 1μs overall propagation delay, so the device can quickly respond to over-current conditions. The SGM8191 has 2MHz bandwidth and it can detect errors in essential applications, such as current sensing and protection in motor control. The SGM8191 is well suited in high speed applications, because the comparator has high accuracy threshold and latching function.
The SGM8191 is available in Green TDFN-2×3-8CL and MSOP-8 packages. It is specified over the extended -40℃ to +125℃ temperature range.
- High Precision Current-Sense Amplifier:
- Low Input Offset Voltage: ±20μV (TYP) at +25℃
- Low Gain Error: -0.05% (TYP)
- Fast Step Response: 250ns
- Internal Comparator:
- Power-On Reset Capability
- Low Threshold Error
- Fast Response Time: 0.5μs
- Internal Precision Reference: 400mV
- Wide Supply Voltage Range: 2.7V to 60V
- Supply Current: 65μA (TYP)
- -40℃ to +125℃ Operating Temperature Range
- Available in Green TDFN-2×3-8CL and MSOP-8 Packages
Industrial Equipment
Current Shunt Measurement
Battery Management System
Motor Control
