Packaging information
| Package | Pins SOT-SC70 (DCK) | 6 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the INA186-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Wide common-mode voltage range, VCM: –0.2 V to +40 V with survivability up to 42 V (recommended for automotive 12-V battery applications)
- Low input bias currents, IIB: 500 pA (typical)
- Low power:
- Low supply voltage, VS: 1.7 V to 5.5 V
- Low quiescent current, IQ: 48 µA (typical)
- Accuracy:
- Common-mode rejection ratio: 120 dB (minimum)
- Gain error, EG: ±1% (maximum)
- Gain drift: 10 ppm/°C (maximum)
- Offset voltage, VOS: ±50 µV (maximum)
- Offset drift: 0.5 µV/°C (maximum)
- Bidirectional current sensing capability
- Gain options:
- INA186A1-Q1: 25 V/V
- INA186A2-Q1: 50 V/V
- INA186A3-Q1: 100 V/V
- INA186A4-Q1: 200 V/V
- INA186A5-Q1: 500 V/V
Description for the INA186-Q1
The INA186-Q1 is an automotive, low-power, voltage-output, current-sense amplifier (also called a current-shunt monitor). This device is commonly used for monitoring systems directly connected to an automotive 12-V battery. The INA186-Q1 can sense drops across shunts at common-mode voltages from –0.2 V to +40 V, independent of the supply voltage. In addition, the input pins have an absolute maximum voltage of 42V.
The low input bias current of the INA186-Q1 permits the use of larger current-sense resistors, thus providing accurate current measurements in the microamp range. The low offset voltage of the zero-drift architecture extends the dynamic range of the current measurement. This feature allows for smaller sense resistors with lower power loss, while still providing accurate current measurements.
The INA186-Q1 operates from a single 1.7-V to 5.5-V power supply, and draws a maximum of 90 µA of supply current . Five fixed gain options are available: 25 V/V, 50 V/V, 100 V/V, 200 V/V, or 500 V/V. The device is specified over the operating temperature range of –40°C to +125°C, and offered in SC70, SOT-23 (5), and SOT-23 (8) packages. The SC70 and SOT-23 (DDF) packages supports bidirectional current measurement, whereas the SOT-23 (DBV) only supports current measurement in one direction.