TLV9152SIRUGR datasheet(33/72 Pages) TI

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8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification, and TI

does not warrant its accuracy or completeness. TI’s customers are responsible for determining

suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

The TLV915x family offers excellent DC precision and DC performance. These devices operate up to 16-V

supply rails and offer true rail-to-rail input/output, low offset voltage and offset voltage drift, as well as 4.5-MHz

bandwidth and high output drive. These features make the TLV915x a robust, high-performance operational

amplifier for high-voltage industrial applications.

8.2 Typical Applications

8.2.1 Low-Side Current Measurement

Figure 8-1 shows the TLV9151 configured in a low-side current sensing application. For a full analysis of the

circuit shown in Figure 8-1 including theory, calculations, simulations, and measured data, see TI Precision

Design TIPD129, 0-A to 1-A Single-Supply Low-Side Current-Sensing Solution.

–

7.5 k

LOAD

360 k

LM7705

12 V

OUT

SHUNT

TLV9151

100 m

Figure 8-1. TLV9151 in a Low-Side, Current-Sensing Application

8.2.1.1 Design Requirements

The design requirements for this design are:

• Load current: 0 A to 1 A

• Output voltage: 4.9 V

• Maximum shunt voltage: 100 mV

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TLV9151, TLV9152, TLV9154

SBOS986C – OCTOBER 2019 – REVISED DECEMBER 2020

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TLV9152SIRUGR Datasheet(PDF) 33 Page - Texas Instruments