Manufacturer Part Number

LMP8640HVMKX-H/NOPB

Description

Current sense amplifier with high precision for accurate current measurement. Integrated circuit (IC) specifically designed for current sensing applications. Compact SOT-23-THIN package for surface mounting. Supports a wide supply voltage range from 2.7V to 12V. Suitable for industrial, automotive, and power management systems due to robust performance and small footprint.

Specifications

Amplifier Type: Current sense

Number of Circuits: 1

Slew Rate: 1.8 V/µs

Gain Bandwidth Product: 230 kHz

Input Bias Current: 13 µA

Input Offset Voltage: 900 µV

Supply Current: 2.3 mA

Supply Voltage Range: 2.7 V to 12 V

Operating Temperature: -40°C to 125°C

Mounting Type: Surface mount

Package/Case: SOT-23-6 Thin (TSOT-23-6)

RoHS Status: ROHS3 compliant

MSL: 1 (unlimited)

ECCN: EAR99

REACH Status: Unaffected

Device Structure

Single channel, integrated current sense amplifier. Housed in a SOT-23-6 thin package, optimal for PCB space saving. Input and output pins are optimized for minimal trace resistance. Internal precision resistors ensure high measurement accuracy.

Performance Characteristics

Low input offset voltage ensures precise current measurement. Wide supply voltage range enhances adaptability to different systems. Low input bias current and minimal supply current help maintain overall energy efficiency. Good slew rate and bandwidth support rapid response to dynamic current changes. Suitable for operation in harsh environments with temperatures up to 125°C.

Application Environments

Used in industrial control, automotive electronics, power management units, battery monitoring, DC-DC converters, and motor control. Also appropriate for systems needing high-side or low-side current monitoring and tight accuracy requirements.

Selection Guidelines

Choose this model for its precise measurement where board space is limited. Ensure the supply voltage matches your system (2.7V to 12V). Verify operating temperature aligns with end equipment needs. Use the SOT-23-THIN footprint when compact size is a priority. Confirm application does not exceed 230kHz bandwidth requirement.

Usage Considerations

Follow recommended PCB layout for the SOT-23-6 package to ensure thermal management and signal integrity. Avoid applying higher supply voltage than 12V. Ensure that ambient temperature stays within -40°C to 125°C. Take static precautions during handling due to the sensitive nature of amplifiers. Observe moisture sensitivity protocol, though this part is unlimited (MSL 1). Review input/output signals for high-side or low-side sensing as required.

Potential Equivalent/Replacement Models

Equivalent models:

LMP8640HVMK-H/NOPB

LMP8640HVMKE-H/NOPB

These models share similar electrical and physical characteristics and can be used interchangeably in most applications. For other alternatives or compatible amplifiers, please contact Ariat-Tech sales team for detailed support and up-to-date recommendations.

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