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Texas Instruments LM8364BALMF20
- Part No.:
- LM8364BALMF20
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM8364BALMF20.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,438
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Product details
Overview
LM8364BALMF20 from Texas Instruments is a micropower undervoltage sensing circuit with 2.0 V detection threshold, ±2.5% accuracy, and 0.65 μA quiescent current at VIN = 2.87 V, housed in a 5-pin SOT-23 package. It delivers active-low open-drain RESET output for microprocessor supervision in battery-powered systems requiring extended runtime and precise low-voltage monitoring.
For engineers reviewing the LM8364BALMF20 datasheet, LM8364BALMF20 pinout, LM8364BALMF20 application, or LM8364BALMF20 equivalent, this device serves as a precision voltage detector for reset generation, low-battery indication, and power-fail signaling - with confirmed operation down to 1.0 V input and built-in 100 mV hysteresis (typical) to prevent oscillation near threshold.
Technical Context
The LM8364BALMF20 integrates a trimmed bandgap reference, comparator with precise threshold alignment, and internal hysteresis to ensure stable reset assertion/deassertion. Its input voltage range spans 1.0 V to 6.0 V, supporting direct monitoring of Li-ion, NiMH, and 3.3 V/5 V rails without external scaling.
It features an open-drain RESET output capable of sinking up to 2.5 mA at VIN = 1.5 V and VOL = 0.5 V, with propagation delay under 300 μs. The device operates across −40°C to +85°C and maintains threshold temperature coefficient of ±100 ppm/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Threshold | 2.0 V (±2.5%), enabling reliable reset assertion when supply drops below nominal 2.0 V level |
| Quiescent Current | 0.65 μA at VIN = 2.87 V - preserves battery life in always-on monitoring applications |
| Hysteresis | 0.100 V (typ), preventing chatter during slow or noisy supply recovery |
| Input Voltage Range | 1.0 V to 6.0 V - supports direct monitoring of single-cell Li-ion (2.5–4.2 V), alkaline, and regulated rails |
| Output Type | Active-low open-drain RESET - allows flexible pull-up to any compatible rail (e.g., VCC or higher) |
| Propagation Delay | 60–300 μs - ensures timely system reset without excessive latency or false triggering |
| Operating Temperature | −40°C to +85°C - qualified for industrial and portable embedded environments |
Pinout & Package
LM8364BALMF20 is packaged in a 5-pin SOT-23 (DBV) surface-mount package, 1.45 mm maximum height, RoHS-compliant, with moisture sensitivity level (MSL) 1 and peak reflow rating of 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain output | Active-low reset signal; requires external pull-up resistor to define logic-high level and sink capability |
| 2 - INPUT | Voltage sense input | Monitors supply rail directly; threshold detection occurs when voltage falls below 2.0 V |
| 3 - GND | Ground reference | Return path for internal reference and comparator; must be low-impedance connection to system ground |
| 4 - N/C | No connect | Internally unconnected; no external connection required or recommended |
| 5 - N/C | No connect | Internally unconnected; no external connection required or recommended |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.65 μA typical enables multi-year battery operation in coin-cell–powered devices |
| Precision threshold accuracy | ±2.5% tolerance ensures consistent reset point across production lots and temperature |
| Built-in hysteresis | 0.100 V typical eliminates need for external feedback components and stabilizes reset release |
| Wide input voltage range | 1.0 V to 6.0 V supports direct monitoring of diverse battery chemistries and regulated supplies |
| SOT-23 footprint | 5-pin compact package saves PCB area versus SOIC or SC-70 alternatives while maintaining manufacturability |
Applications
| Microprocessor Reset Controller | Low-Battery Detection |
|---|---|
|
Use Scenario: Monitoring main supply rail of an ARM Cortex-M0+ MCU in a wireless sensor node powered by a CR2032 coin cell. IC Role / Device Role / Timing Role: Voltage detector asserting active-low RESET to hold processor in reset until supply exceeds 2.0 V after cold start or brownout. Use Value: Guarantees clean boot sequence and prevents erratic execution due to marginal VDD, leveraging 0.65 μA quiescent current to extend battery life beyond 5 years. |
Use Scenario: Detecting end-of-life voltage in a handheld medical thermometer using two AAA alkaline cells. IC Role / Device Role / Timing Role: Threshold comparator triggering LED warning when stack voltage drops below 2.0 V per cell (4.0 V total). Use Value: Provides early low-battery alert with ±2.5% accuracy - eliminating false warnings caused by load transients thanks to 0.100 V hysteresis. |
| Power-Fail Indicator | Battery Backup Supervision |
|
Use Scenario: Signaling imminent AC power loss in a smart meter with supercapacitor backup, where main 3.3 V rail collapses before backup engages. IC Role / Device Role / Timing Role: Undervoltage monitor on primary 3.3 V rail generating early interrupt to initiate data save and switchover. Use Value: Enables deterministic fail-safe response within 300 μs, using open-drain output to interface directly with MCU's wake-up/interrupt pin. |
Use Scenario: Validating backup battery readiness in a real-time clock (RTC) module using a 3.0 V lithium coin cell. IC Role / Device Role / Timing Role: Standby supervisor verifying backup voltage remains ≥2.0 V before allowing RTC to switch from main to backup supply. Use Value: Prevents timekeeping corruption during power transition by ensuring backup source meets minimum operational voltage prior to handover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar undervoltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G20DBVR | 2.0 V threshold, but 1.6 μA quiescent current (2.5× higher); push-pull output instead of open-drain | Requires level-shifting or redesign if interfacing with legacy open-drain reset inputs | Preferred where faster propagation (<50 μs) and tighter tempco (±30 ppm/°C) are critical, and higher IQ is acceptable |
| MAX809SEUR+T | 2.0 V threshold, 2.5 μA IQ, SOT-23-3 package (no N/C pins), fixed 240 ms reset timeout | Lacks hysteresis control and adjustable timing; not suitable for dynamic threshold or fast-recovery scenarios | Appropriate for cost-sensitive designs needing basic reset with guaranteed minimum pulse width, not precision monitoring |
Compared with TPS3808G20DBVR and MAX809SEUR+T, the LM8364BALMF20 uniquely balances ultra-low IQ (0.65 μA), precise 2.0 V threshold (±2.5%), and configurable open-drain output - making it optimal for long-life battery systems where reset timing fidelity and minimal standby drain are jointly essential.
Availability
LM8364BALMF20 is available at Aetrix Electronics and suitable for microprocessor reset control, low-battery detection, power-fail indication, and battery backup supervision requiring stable component supply and long-term industrial availability.
Supply support for LM8364BALMF20 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 company delivering analog and embedded processing solutions, with leadership in power management, signal chain, and high-reliability analog ICs.
The LM8364 series was designed specifically for micropower undervoltage sensing in portable and battery-critical systems - emphasizing precision threshold stability, sub-μA operation, and robustness across wide input voltage and temperature ranges.
FAQ
What is the exact detection threshold voltage of the LM8364BALMF20?
The LM8364BALMF20 has a nominal detection threshold voltage of 2.0 V, with a guaranteed tolerance of ±2.5% over temperature and process variation. This means the actual trip point falls between 1.950 V and 2.050 V at 25°C, and the device asserts RESET when the INPUT pin voltage decreases below this value.
Does the LM8364BALMF20 require an external pull-up resistor on the RESET pin?
Yes, the LM8364BALMF20 features an open-drain RESET output and requires an external pull-up resistor to a valid logic-high voltage rail (e.g., VCC or another supply). Typical values range from 10 kΩ to 470 kΩ depending on rise time and bus loading requirements - TI's datasheet uses a 470 kΩ pull-up in timing measurements.
Can the LM8364BALMF20 operate with input voltages below 2.0 V?
Yes, the LM8364BALMF20 is fully functional down to 1.0 V input voltage, and its RESET output remains asserted (low) as long as the INPUT voltage stays below the hysteresis-adjusted release threshold (~2.1 V). This ensures reliable reset hold during deep brownout conditions.
What is the quiescent current consumption of the LM8364BALMF20 at 2.0 V input?
At VIN = 2.0 V, the LM8364BALMF20 draws approximately 0.65 μA typical quiescent current - consistent with its specified 0.65 μA at VIN = 2.87 V. Measured data shows <0.8 μA across the full 1.0–6.0 V range, confirming suitability for ultra-low-power applications.
Is the LM8364BALMF20 pin-compatible with the MC33464 series?
Yes, the LM8364BALMF20 is explicitly documented as pin-for-pin compatible with the MC33464 family. Both share identical 5-pin SOT-23 pinout (RESET, INPUT, GND, N/C, N/C), same electrical behavior, and comparable threshold accuracy and quiescent current - enabling drop-in replacement in existing MC33464-based designs.
LM8364BALMF20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 60µs Typical Propagation Delay
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM8364BALMF20 FAQ
1.How can I place an order for LM8364BALMF20 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM8364BALMF20 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 LM8364BALMF20 reliable?
The price and inventory of LM8364BALMF20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM8364BALMF20 is usually 5 days.
3.What payment methods are accepted for LM8364BALMF20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM8364BALMF20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM8364BALMF20?
LM8364BALMF20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM8364BALMF20 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 LM8364BALMF20?
For technical support, including LM8364BALMF20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM8364BALMF20 requirements.
6.How does Aetrix verify that LM8364BALMF20 is sourced from the original manufacturer or authorized distributors?
All LM8364BALMF20 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 LM8364BALMF20 meets industry standards.
7.What is the process for return or replacement of LM8364BALMF20?
All LM8364BALMF20 units undergo pre-shipment inspection (PSI). If there is an issue with LM8364BALMF20, 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 LM8364BALMF20 part is unused and in its original packaging.
Return procedure for LM8364BALMF20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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