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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LMP8601, LMP8601-Q1

LMP8602, LMP8602-Q1

LMP8603, LMP8603-Q1

SNOSAR2H – SEPTEMBER 2008 – REVISED APRIL 2016

LMP860x, LMP860x-Q1 60-V, Bidirectional, Low- or High-Side, Voltage-Output,

Current-Sensing Amplifiers

1

1 Features

1

•

Gain = 20x for LMP8601 and LMP8601-Q1

•

Gain = 50x for LMP8602 and LMP8602-Q1

•

Gain = 100x for LMP8603 and LMP8603-Q1

•

•

CMRR: 90-dB Minimum

•

Input Offset Voltage: 1-mV Maximum

•

•

•

Single-Supply Bidirectional Operation

•

All Minimum and Maximum Limits 100% Tested

•

Q1 Devices Qualified for Automotive Applications

•

Q1 Devices ACE-Q100 Qualified With the

Following Results:

–

Device Temperature Grade 1: –40°C to 125°C

Ambient Operating Temperature Range

–

Device Temperature Grade 0: –40°C to 150°C

(LMP8601EDRQ1 Only)

–

Device HBM ESD Classification Level 2

(3A on inputs)

–

Device CDM ESD Classification Level C6

–

Device MM ESD Classification Level M2

2 Applications

•

High-Side and Low-Side Driver Configuration

Current Sensing

•

Bidirectional Current Measurement

•

Current Loop to Voltage Conversion

•

Automotive Fuel Injection Control

•

Transmission Control

•

Power Steering

•

Battery Management Systems

3 Description

The LMP8601, LMP8602, LMP8603 (LMP860x) and

LMP8601-Q1,

LMP8602-Q1,

LMP8603-Q1

(LMP860x-Q1)

devices

are

fixed-gain,

precision

current-sense amplifiers (also referred to as current-

shunt monitors). The input common-mode voltage

range is –22 V to +60 V when operating from a single

5-V supply, or –4 V to +27 V with a 3.3-V supply. The

LMP860x and LMP860x-Q1 are ideal parts for

unidirectional

and

bidirectional

current

sensing

applications.

These devices have a precise gain of 20x (LPM8601,

LPM8601-Q1), 50x (LPM8602, LPM8602-Q1), and

100x (LPM8603, LPM8603-Q1), and are adequate in

most targeted applications to drive an ADC to full-

scale value. The fixed gain is achieved in two

separate stages: a preamplifier with a gain of 10x and

an output stage buffer amplifier with a gain of 2x

(LMP8601, LMP8601-Q1), 5x (LMP8602, LMP8602-

Q1), or 10x (LMP8603, LMP8603-Q1). The path

between the two stages is brought out on two pins to

enable the option of an additional filter network or

modifying the gain.

The offset input pin enables these devices for

unidirectional or bidirectional single supply voltage

current sensing.

The LMP860x-Q1 devices incorporate enhanced

manufacturing

and

support

processes

for

the

automotive market and are compliant with the AEC-

Q100 standard.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LMP860x

SOIC (8)

4.90 mm x 3.91 mm

LMP860x-Q1

LMP8602, LMP8603

VSSOP (8)

3.00 mm × 3.00 mm

LMP8602-Q1, LMP8603-Q1

(1) For all available packages, see the package option addendum

at the end of the data sheet.

Typical Applications