TPA133数据手册3PEAK中文资料规格书

描述 Description

The TPA133 is a current-sense amplifier with a very wide input common-mode voltage range from −4 V to 95 V with a small-signal bandwidth of 1 MHz. The enhanced PWM rejection allows the TPA133 to accommodate the solenoids and motors applications. The device features high-precision accuracy specifications of Vos and the gain error, which makes it ideal for the small signal conditioning interfacing with a high-accuracy ADC.

Fixed gains are optional: 10 V/V, 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The device offers breakthrough performance throughout the temperature range of −40°C to +125°C. The device is offered SOT23-8 and MSOP8 packages.

Many systems, including motors and solenoids, employ PWM signals for modulation or control purposes. However, these PWM signals generate fast common-mode voltage transitions that oscillate between high voltage and ground potential. This can pose a challenge for the current measurement circuitry, as it may result in undesirable output voltage fluctuations. To address this issue, the device incorporates an advanced PWM rejection feature. This feature minimizes the impact of common-mode voltage transitions and ensures stable and reliable output voltage.

应用 Application

• Current Sensing (High-Side and Low-Side)



• Solenoid and Valve Control



• Power Management