TPA191 Datasheet | 3PEAK

Features Applications - Voltage Offset: - ±100 μV (Max) at VCM = 2.75 V - ±250 μV (Max) at VCM = 12 V - Wide mon-Mode Voltage: - 0.3 V to +36 V - Supply Voltage: 2.7 V to 36 V - Accuracy and Zero-Drift Performance - ±1% Gain Error (Max over temperature) - 0.2 μV/°C Offset Drift (Typ) - 10 ppm/°C Gain Drift (Max) - Three Gain Options for Voltage Output - TPA191A1: 20 V/V - TPA191A2: 50 V/V - TPA191A3: 75 V/V - TPA191A4: 100 V/V - TPA191A5: 200 V/V - TPA191A6: 500 V/V - TPA191A7: 1000 V/V - Low Supply Current: 80 μA (Typ) - Rail-to-Rail Output - Package: SOT363 - Industrial - 40°C to 125°C Operating Range - Current Sensing (High- Side/Low- Side) - Battery Charger - Power Management - Cell Phone Charger - Electrical Cigarette - Wireless Charger - Tele Equipment Description The TPA191 series of zero-drift, bi-directional current sense amplifier can sense voltage drops across shunts at mon-mode voltages from - 0.3 V to 36 V, independent of the supply voltage. Five fixed gains are available: 20 V/V, 50 V/V, 75 V/V, 100 V/V, and 200 V/V. The integration matched gain resistor network minimizes gain errors and reduces the temperature drift. The low offset of the zero-drift architecture enables current sensing with the maximum drops across the shunt as low as 10-m V full-scale. The TPA191 devices operate from a single 2.7-V to 36V power supply, with drawing a typical of 80-μA supply current. All versions are specified from - 40°C 125°C, and offered in the SOT363 package. Typical Application Circuit Vbus =- 0.3 ~ 36...