LMP8602MASLASHNOPB datasheet(26/42 Pages) TI1

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RSENSE

POWER

SWITCH

INDUCTIVE

LOAD

24V

+IN

-IN

Preamplifier

Output Buffer

Gain = K2

Gain = 10

OFFSET

Internal

Resistor

100 k:

OUT

Level

shift

LMP8601, LMP8601-Q1

LMP8602, LMP8602-Q1

LMP8603, LMP8603-Q1

SNOSAR2H – SEPTEMBER 2008 – REVISED APRIL 2016

www.ti.com

Product Folder Links: LMP8601 LMP8601-Q1 LMP8602 LMP8602-Q1 LMP8603 LMP8603-Q1

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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. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

8.1.1 Specifying Performance

To specify the high performance of the LMP860x and LMP860x-Q1, all minimum and maximum values shown in

the parameter tables of this data sheet are 100% tested, and all over temperature limits are also 100% tested

over temperature.

8.2 Typical Applications

8.2.1 High-Side, Current-Sensing Application

Figure 60 illustrates the application of the LMP860x and LMP860x-Q1 in a high-side sensing application. This

application is similar to the low-side sensing discussed below, except in this application the common-mode

voltage on the shunt drops below ground when the driver is switched off. Because the common-mode voltage

range of the LMP860x and LMP860x-Q1 extends below the negative rail, the LMP860x and LMP860x-Q1 are

also very well suited for this application.

NOTE: For this application example, K2 = 2.

Figure 60. High-Side, Current-Sensing Application

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