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1. Description
The INA200-Q1, INA201AQDGKRQ1, and INA202-Q1 (INA20x-Q1) are low- or high-side current-shunt monitors with voltage output. The INA20x-Q1 devices can sense drops across shunts at common-mode voltages from –16 V to +80 V. The INA20x-Q1 are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with up to a 500-kHz bandwidth. The INA20x-Q1 also incorporate an open-drain comparator and internal reference that provides a 0.6-V threshold. External dividers set the current trip point. The comparator includes a latching capability, and can be made transparent by grounding (or leaving open) the RESET pin. The INA20x-Q1 operate from a single 2.7-V to 18-V supply, drawing a maximum of 1800 μA of supply current. These devices are available in the very small VSSOP-8 package. Specifications for all devices extend over the operating temperature range of –40°C to +125°C.
2. Features
1. Qualified for Automotive Applications
2. AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
3. Current-Sense Amplifier:
– Common-Mode Range: –16 V to +80 V
– 3.5% Max Error Over Temperature
– Bandwidth: 500 kHz (INA200-Q1)
– Three Gain Options:
– 20 V/V (INA200-Q1)
– 50 V/V (INA201-Q1)
– 100 V//V (INA202-Q1)
4. Integrated Open-Drain Comparator
– Latching Capability
– 0.6-V Internal Voltage Reference
5. Quiescent Current: 1800 μA (Max)
6. Latch-Up Exceeds 100 mA per JESD78
7. Package: VSSOP-8
3. Applications
1. Electric Power Steering (EPS) Systems
2. Body Control Modules
3. Brake Systems
4. Electronic Stability Control (ESC) Systems
4. Pin configuration
5. Pin Description
6. Application Information
The INA20x-Q1 series is designed to enable easy configuration for detecting overcurrent conditions and current monitoring in an application. This device is individually targeted towards overcurrent detection of a single threshold. However, this device can also be paired with additional devices and circuitry to create more complex monitoring functional blocks.
