LMP8645MK Texas Instruments Integrated Circuit (Other) In Stock
Precision High Voltage Current Sense Amplifier by Texas Instruments. Features 95 dB CMRR, 20 µA max bias current, and 1700 µV input offset voltage. Ideal for industrial motor control, power management, and battery monitoring applications. Available in SOT-23 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- LMP8645MK Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMP8645MK?
- 95 dB Common-Mode Rejection Ratio (CMRR) for accurate differential sensing in noisy environments
- Low input offset voltage of 1700 µV max for high-precision current measurements
- High voltage operation supports wide supply range for industrial and automotive applications
- Voltage-feedback architecture with frequency compensation for stable closed-loop performance
- Compact R-PDSO-G6 (SOT-23) package for space-constrained designs
What is LMP8645MK used for?
The LMP8645MK is widely used in industrial motor drives and servo controllers where accurate phase current sensing is critical. It also serves power supply monitoring systems, battery management circuits, and overcurrent protection designs. Its high CMRR and precision offset make it suitable for automotive on-board diagnostics and process-control instrumentation.
What are the specifications of LMP8645MK?
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 20 µA |
| Bias Current-Max (IIB) @25C | 20 µA |
| Common-mode Reject Ratio-Nom | 95dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 1700 µV |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.5V/us |
| Supply Current-Max | 2.7mA |
| Supply Voltage Limit-Max | 13.2V |
| Supply Voltage-Nom (Vsup) | 2.7V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Gain-Min | 1 |
| Wideband | NO |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LMP8645MK datasheet?
LMP8645MK Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMP8645MK?
Compatible alternatives and drop-in replacements for LMP8645MK:
Amplifier, 1 Func, 1000uV Offset-Max, 0.135MHz Band Width, BICMOS, PDSO6
Amplifier, 1 Func, 1000uV Offset-Max, 0.135MHz Band Width, BICMOS, PDSO6
Frequently Asked Questions
What is the maximum common-mode rejection ratio of the LMP8645MK?
The LMP8645MK offers a typical common-mode rejection ratio (CMRR) of 95 dB, enabling accurate current sensing even when the common-mode voltage fluctuates significantly, which is essential in high-voltage motor control and power conversion applications.
What are the typical applications for the LMP8645MK current sense amplifier?
The LMP8645MK is designed for industrial motor drives, battery management systems, power supplies, and overcurrent protection circuits. Its precision high-voltage architecture makes it suitable for any application requiring accurate bidirectional or unidirectional current measurement across a shunt resistor.
What package does the LMP8645MK come in, and what is its maximum input offset voltage?
The LMP8645MK is packaged in a compact R-PDSO-G6 (SOT-23) 6-pin small-outline package. Its maximum input offset voltage is 1700 µV at 25°C, and the maximum input bias current is 20 µA, supporting precision measurements in space-constrained board designs.
Can the LMP8645MK replace other high-voltage current sense amplifiers?
Yes, the LMP8645MK can serve as an alternative to similar precision high-voltage current sense amplifiers from other manufacturers. When substituting, verify that the replacement matches the CMRR, offset voltage, input bias current, supply voltage range, and package footprint requirements of your design.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit