LMP8480-Q1

AKTIV

Strommessverstärker, AEC-Q100, 4 bis 76 V

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Datenblatt

document-pdfAcrobat LMP848x-Q1 Automotive, 76-V, High-Side, High-Speed, Current-Sense Amplifier datasheet (Rev. A) (Englisch) PDF | HTML

LMP8480-Q1

AKTIV

Jetzt bestellen

Produktdetails

Product type

Analog output

Common-mode voltage (max) (V)

76

Common-mode voltage (min) (V)

4

Input offset (±) (max) (µV)

265

Input offset drift (±) (typ) (µV/°C)

6

Rating

Automotive

Voltage gain (V/V)

20, 60, 100

CMRR (min) (dB)

100

Bandwidth (kHz)

270

Iq (max) (mA)

0.155

Number of channels

1

Comparators (#)

0

Gain error (%)

0.6

Gain error drift (±) (max) (ppm/°C)

60

Slew rate (V/µs)

1

Operating temperature range (°C)

-40 to 125

Product type

Analog output

Common-mode voltage (max) (V)

76

Common-mode voltage (min) (V)

4

Input offset (±) (max) (µV)

265

Input offset drift (±) (typ) (µV/°C)

6

Rating

Automotive

Voltage gain (V/V)

20, 60, 100

CMRR (min) (dB)

100

Bandwidth (kHz)

270

Iq (max) (mA)

0.155

Number of channels

1

Comparators (#)

0

Gain error (%)

0.6

Gain error drift (±) (max) (ppm/°C)

60

Slew rate (V/µs)

1

Operating temperature range (°C)

-40 to 125

VSSOP (DGK)

8

14.7 mm² (3 mm × 4.9 mm)

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C6
Bidirectional or Unidirectional Sensing
Common Mode Voltage Range: 4.0 V to 76 V
Supply Voltage Range: 4.5 V to 76 V
Fixed Gains: 20, 60, and 100 V/V
Gain Accuracy: ±0.1%
Offset: ±80 µV
Bandwidth (–3 dB): 270 kHz
Quiescent Current: < 100 µA
Buffered High-Current Output: > 5 mA
Input Bias Current: 7 µA
PSRR (DC): 122 dB
CMRR (DC): 124 dB

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C6
Bidirectional or Unidirectional Sensing
Common Mode Voltage Range: 4.0 V to 76 V
Supply Voltage Range: 4.5 V to 76 V
Fixed Gains: 20, 60, and 100 V/V
Gain Accuracy: ±0.1%
Offset: ±80 µV
Bandwidth (–3 dB): 270 kHz
Quiescent Current: < 100 µA
Buffered High-Current Output: > 5 mA
Input Bias Current: 7 µA
PSRR (DC): 122 dB
CMRR (DC): 124 dB

The automotive-qualified LMP8480-Q1 and LMP8481-Q1 devices are precision, high-side, current-sense amplifiers that amplify a small differential voltage developed across a current-sense resistor in the presence of high input common-mode voltages. These amplifiers are designed for bidirectional (LMP8481-Q1) or unidirectional (LMP8480-Q1) current applications and accept input signals with a common-mode voltage range from 4 V to 76 V with a bandwidth of 270 kHz. Because the operating power-supply range overlaps the input common-mode voltage range, the LMP848x-Q1 can be powered by the same voltage that is being monitored. This benefit eliminates the need for an intermediate supply voltage to be routed to the point of load where the current is being monitored, resulting in reduced component count and board space.

The LMP848x-Q1 family consists of fixed gains of 20, 60, and 100 for applications that demand high accuracy over temperature. The low-input offset voltage allows the use of smaller sense resistors without sacrificing system error. The LMP8480-Q1 and LMP8481-Q1 are pin-for-pin replacements for the MAX4080 and MAX4081 devices, offering improved offset voltage, wider reference adjust range, and higher output drive capabilities. The LMP8480-Q1 and LMP8481-Q1 are available in an 8-pin VSSOP package.

The automotive-qualified LMP8480-Q1 and LMP8481-Q1 devices are precision, high-side, current-sense amplifiers that amplify a small differential voltage developed across a current-sense resistor in the presence of high input common-mode voltages. These amplifiers are designed for bidirectional (LMP8481-Q1) or unidirectional (LMP8480-Q1) current applications and accept input signals with a common-mode voltage range from 4 V to 76 V with a bandwidth of 270 kHz. Because the operating power-supply range overlaps the input common-mode voltage range, the LMP848x-Q1 can be powered by the same voltage that is being monitored. This benefit eliminates the need for an intermediate supply voltage to be routed to the point of load where the current is being monitored, resulting in reduced component count and board space.

The LMP848x-Q1 family consists of fixed gains of 20, 60, and 100 for applications that demand high accuracy over temperature. The low-input offset voltage allows the use of smaller sense resistors without sacrificing system error. The LMP8480-Q1 and LMP8481-Q1 are pin-for-pin replacements for the MAX4080 and MAX4081 devices, offering improved offset voltage, wider reference adjust range, and higher output drive capabilities. The LMP8480-Q1 and LMP8481-Q1 are available in an 8-pin VSSOP package.

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen
*	Datenblatt	LMP848x-Q1 Automotive, 76-V, High-Side, High-Speed, Current-Sense Amplifier datasheet (Rev. A)	PDF \| HTML	24.02.2017
	Anwendungshinweis	Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A)	PDF \| HTML	27.04.2026
	Benutzerhandbuch	LMP8480EVM Current Shunt Monitors Guide (Rev. A)		19.03.2013

Design und Entwicklung

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Evaluierungsplatine

LMP848XMMEVM-X — Evaluierungstool für LMP8480 und LMP8481

The Texas Instruments LMP8480/81 evaluation module (EVM) helps designers quickly evaluate the operation and performance of the LMP8480/81 76V Precision High Side Current Sense Amplifier. The EVM is ready to connect to power, load, and test instruments through the use of on-board terminals.

The EVM (...)