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Texas Instruments LMP8602QMME/NOPB
- Part No.:
- LMP8602QMME/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMP8602QMME/NOPB.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
LMP8602QMME/NOPB from Texas Instruments is a precision bidirectional current-sense amplifier with fixed 50× gain, –22V to +60V input common-mode voltage range at 5V supply, 90dB minimum CMRR, ±1mV max input offset voltage, and in-line filter capability via A1/A2 pins for signal conditioning in high-noise industrial power systems.
For engineers reviewing the LMP8602QMME/NOPB datasheet, LMP8602QMME/NOPB pinout, LMP8602QMME/NOPB application, or LMP8602QMME/NOPB equivalent, key selection criteria include unidirectional/bidirectional shunt sensing accuracy under high common-mode transients, thermal drift stability (±10μV/°C), and compatibility with 3.3V/5V single-supply ADC interfaces in server power, motor control, and lab instrumentation.
Technical Context
The LMP8602QMME/NOPB implements a two-stage architecture: a chopping-level-shift preamplifier (gain = 10×, ±1mV VOS, 100kΩ output impedance) followed by a buffered output stage (gain = 5×), enabling precise amplification of millivolt-level shunt voltages while rejecting high common-mode noise up to 60V. Its proprietary input stage withstands large differential fault voltages without damage.
Signal path flexibility is provided through accessible A1 (preamplifier output) and A2 (buffer input) terminals, allowing external RC filtering or gain adjustment between stages-critical for EMI suppression in DC/DC converters and linear motor drives operating across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Gain | 50× (±0.5% error) - delivers full-scale ADC input from ±10mV shunt drops at 5V supply |
| Common-Mode Range | –22V to +60V at 5V supply - supports sensing on negative rails or high-side 48V bus monitoring |
| CMRR | ≥90dB (min) at 1kHz - rejects noise from switching regulators and motor commutation |
| Input Offset Voltage | ±1mV (max) - enables <1% error at 100mV sense voltage without calibration |
| Offset Drift | ±10μV/°C (max) - ensures stable zero-current baseline over industrial temperature range |
| Bandwidth | 60kHz - captures fast current transients in PWM-driven power stages |
| Supply Current | 1.1mA (typ) at 5V - suitable for always-on monitoring in energy-sensitive systems |
Pinout & Package
The LMP8602QMME/NOPB is packaged in an 8-pin VSSOP (DGK) package measuring 3.00mm × 4.90mm, optimized for space-constrained PCB layouts in server and motor control applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –IN | Negative input | Connects to low side of current-sense shunt; accepts common-mode down to –22V |
| 2: A1 | Preamplifier output | Provides 10× amplified signal with 100kΩ source impedance for external filtering |
| 3: VS | Positive supply | Single 3.3V or 5V rail; powers both input and output stages |
| 4: OUT | Final output | Single-ended 50× amplified voltage referenced to GND; drives ADC directly |
| 5: –IN | Negative input | Duplicate pin for layout symmetry; electrically tied to Pin 1 |
| 6: GND | Power ground | Reference for output swing and internal biasing; requires low-impedance connection |
| 7: OFFSET | DC offset control | Biases output to mid-supply for bidirectional current measurement (e.g., 2.5V at 5V supply) |
| 8: +IN | Positive input | Connects to high side of shunt; completes differential sensing path |
Key Features
| Feature | Design Value |
|---|---|
| Chopping-level-shift input stage | Enables ultra-low offset (±1mV) and drift (±10μV/°C) while surviving >80V differential fault conditions |
| Two-stage gain architecture | Separates preamp (10×) and buffer (5×) stages via A1/A2 pins, permitting custom RC filtering without affecting gain accuracy |
| Bidirectional operation support | OFFSET pin allows DC biasing of output to enable accurate zero-crossing detection in regenerative motor control |
| High common-mode rejection | 90dB min CMRR at 1kHz ensures reliable current measurement in noisy 48V telecom or server VRM environments |
| Robust input protection | Integrated level-shift resistors prevent latch-up and permanent damage during load-dump or short-circuit events |
Applications
| Server VRM Monitoring | Linear Motor Power Stage |
|---|---|
Use Scenario: Real-time phase current monitoring in Intel server voltage regulator modules with 48V input and sub-1V CPU core rails. IC Role / Device Role / Timing Role: High-side current-sense amplifier converting mV shunt voltage to calibrated 0–5V ADC input with ±22V common-mode tolerance. Use Value: Enables dynamic current limiting and thermal derating without sacrificing measurement accuracy across –40°C to +125°C junction temperature. | Use Scenario: Closed-loop current control in precision linear motors used in semiconductor lithography equipment. IC Role / Device Role / Timing Role: Bidirectional shunt amplifier providing real-time force-direction feedback with <10μs settling time and minimal offset drift. Use Value: Maintains sub-micron positioning accuracy by rejecting EMI from adjacent high-current drive circuits. |
| DC/DC Converter Protection | Electronic Lab Equipment |
Use Scenario: Overcurrent detection in isolated 24V-to-5V flyback converters powering FPGA-based test instruments. IC Role / Device Role / Timing Role: Fast-response current monitor interfacing with protection logic to shut down MOSFETs within 100ns of fault onset. Use Value: Prevents transformer saturation and secondary-side component failure via accurate high-speed current thresholding. | Use Scenario: Precision current sourcing and measurement in benchtop programmable power supplies and source-measure units (SMUs). IC Role / Device Role / Timing Role: Low-drift bidirectional amplifier enabling 4-quadrant operation with <0.1% linearity error over full temperature range. Use Value: Supports traceable calibration to NIST standards by minimizing thermal-induced gain and offset errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | 500kHz bandwidth, 120dB CMRR, but only –4V to 80V common-mode range; no A1/A2 filter access | Better for high-frequency switching noise rejection; unsuitable where in-line RC filtering is required | Select when bandwidth >100kHz is critical and external filtering is handled elsewhere |
| MAX40056ASA+T | 200kHz bandwidth, ±150V common-mode, but 100× fixed gain only; no bidirectional OFFSET pin | Designed for ultra-high-voltage battery management; lacks mid-supply biasing for true bidirectional sensing | Select for >60V bus monitoring where unidirectional high-side sensing suffices |
Compared with INA240A1QDRQ1 and MAX40056ASA+T, the LMP8602QMME/NOPB uniquely balances wide common-mode range (–22V to +60V), precise 50× gain, and accessible A1/A2 nodes for application-specific filtering-making it optimal for industrial motor drives and server power where signal integrity and design flexibility are jointly prioritized.
Availability
LMP8602QMME/NOPB is available at Aetrix Electronics and suitable for server VRM monitoring, linear motor power stages, DC/DC converter protection, and electronic lab equipment requiring stable component supply and guaranteed long-term manufacturability.
Supply support for LMP8602QMME/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision signal conditioning and power management ICs.
The LMP860x product line was engineered specifically for high-accuracy, high-common-mode current sensing in industrial, computing, and automotive power systems-emphasizing robustness, low drift, and flexible signal-path configuration.
FAQ
What is the maximum common-mode voltage the LMP8602QMME/NOPB supports at 5V supply?
The LMP8602QMME/NOPB supports a common-mode input voltage range of –22V to +60V when operated from a 5V single supply, enabling reliable high-side and negative-rail current sensing in demanding power architectures such as 48V server VRMs and regenerative motor drives.
How does the A1 and A2 pin interface function in the LMP8602QMME/NOPB?
The A1 pin outputs the 10× preamplified signal with 100kΩ source impedance, and the A2 pin feeds that signal into the 5× output buffer. This split-path architecture allows engineers to insert passive RC filters or gain-adjustment networks between A1 and A2-enabling application-specific noise suppression without compromising the LMP8602QMME/NOPB's calibrated 50× total gain.
Can the LMP8602QMME/NOPB perform bidirectional current measurement?
Yes-the LMP8602QMME/NOPB supports true bidirectional current sensing via its dedicated OFFSET pin, which allows DC biasing of the output to mid-supply (e.g., 2.5V at 5V VS). This enables accurate zero-crossing detection and polarity resolution for applications like H-bridge motor control and programmable lab power supplies.
What is the typical supply current consumption of the LMP8602QMME/NOPB?
The LMP8602QMME/NOPB draws 1.1mA typical supply current at 5V operation and remains functional down to 0.45mA across –40°C to +125°C, making it suitable for always-on current monitoring in thermally constrained or energy-sensitive industrial systems without compromising speed or accuracy.
Does the LMP8602QMME/NOPB require external calibration for precision applications?
No-the LMP8602QMME/NOPB achieves ±1mV maximum input offset voltage and ±10μV/°C drift without trimming, and its 50× gain exhibits only ±0.5% error. These factory-trimmed specifications eliminate the need for system-level calibration in most precision current-sensing applications, including server power delivery and automated test equipment.
LMP8602QMME/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.83V/µs
- Gain Bandwidth Product:
- 60 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.04 pA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 1.1mA
- Current - Output / Channel:
- 48 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMP8602QMME/NOPB FAQ
1.How can I place an order for LMP8602QMME/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP8602QMME/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMP8602QMME/NOPB reliable?
The price and inventory of LMP8602QMME/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP8602QMME/NOPB is usually 5 days.
3.What payment methods are accepted for LMP8602QMME/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP8602QMME/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP8602QMME/NOPB?
LMP8602QMME/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP8602QMME/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMP8602QMME/NOPB?
For technical support, including LMP8602QMME/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP8602QMME/NOPB requirements.
6.How does Aetrix verify that LMP8602QMME/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP8602QMME/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMP8602QMME/NOPB meets industry standards.
7.What is the process for return or replacement of LMP8602QMME/NOPB?
All LMP8602QMME/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP8602QMME/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMP8602QMME/NOPB part is unused and in its original packaging.
Return procedure for LMP8602QMME/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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