TPA131C(3PEAK)

The TPA131C is a family of high-voltage, high-side current-sense amplifiers with voltage output, internal comparator, and voltage reference. The TPA131C can sense drops across shunts at common-mode voltages from –4 V to 80 V.

The TPA131C has five output voltage scales: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V with up to 1-MHz bandwidth. The TPA131C features one open drain comparator with internal 0.6-V references. The comparator works with a latching capability.

The TPA131C operates from single 3.0-V to 5.5-V supply, offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero-drift core, which leads to an offset drift of 0.5 μV/°C throughout the operating temperature range and the common-mode voltage range.

The TPA131C is offered in the MSOP8 package.

Features

• Enhanced PWM Rejection

• Wide Common-Mode Voltage– Operational Voltage: −4 V to 80 V– Survival Voltage: −10 V to 85 V

• Supply Voltage: 3.0 V to 5.5 V

• Excellent CMRR– 150-dB DC CMRR– 115-dB AC CMRR at 50 kHz

• Accuracy and Zero-Drift Performance– 230-μV Voltage Offset (Max, −40°C to 125°C)– 0.3% Gain Error (Max, −40°C to 125°C)

• Bandwidth: 1 MHz (For A1, A2, A3, A4 Version)

• Slew Rate: 11.5 V/µs (For A1, A2, A3, A4 Version)

• Excellent Start-up and Power-off Response

• Gain Options for Voltage Output– TPA131CA1: 20 V/V– TPA131CA2: 50 V/V– TPA131CA3: 100 V/V– TPA131CA4: 200 V/V– TPA131CA5: 500 V/V

• Comparator– 0.6-V Internal Voltage Reference– Open-Drain Output with Latch Control