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Texas Instruments LM8364BALMF20/NOPB
- Part No.:
- LM8364BALMF20/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM8364BALMF20/NOPB.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,982
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Product details
Overview
LM8364BALMF20/NOPB from Texas Instruments is a micropower undervoltage sensing circuit with 2.0 V detection threshold, ±2.5% accuracy, 0.65 μA quiescent current at 2.87 V input, open-drain active-low RESET output, and operation down to 1.0 V supply-designed for battery-powered microprocessor reset supervision in portable embedded systems.
For engineers reviewing the LM8364BALMF20/NOPB datasheet, LM8364BALMF20/NOPB pinout, LM8364BALMF20/NOPB application, or LM8364BALMF20/NOPB equivalent, key selection criteria include precise 2.0 V threshold tolerance, ultra-low standby current, SOT-23-5 package compatibility, hysteresis-enabled noise immunity, and guaranteed reset assertion below 1.0 V supply.
Technical Context
The LM8364BALMF20/NOPB integrates a precision voltage reference, comparator with built-in hysteresis (100 mV typ), and open-drain output stage optimized for low-voltage monitoring. It operates across 1.0 V to 6.0 V input range and ensures reliable reset assertion even as supply drops to 1.0 V.
Its propagation delay is 60–300 μs with 470 kΩ pull-up and 10 pF load, and threshold temperature coefficient is ±100 ppm/°C. The device features no internal power-on reset timer-output responds solely to input voltage crossing VDET− and VDET+ thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Threshold | 2.0 V ±2.5% - precisely trimmed for reliable low-battery indication at nominal 2.0 V supply collapse point |
| Quiescent Current | 0.65 μA typ at VIN = 2.87 V - enables multi-year battery life in coin-cell–powered systems |
| Hysteresis | 0.100 V typ - prevents oscillatory reset toggling near threshold during slow supply decay |
| Input Range | 1.0 V to 6.0 V - supports supervision of Li-ion, alkaline, NiMH, and regulated 3.3 V/5 V rails |
| Output Type | Active-low open-drain - allows wired-OR reset bus configuration and flexible pull-up voltage selection |
| Propagation Delay | 60–300 μs - ensures timely system halt before supply violates MCU minimum operating voltage |
| Operating Temp | −40°C to +85°C - qualified for industrial and portable consumer environments |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body, gull-wing leads, RoHS-compliant matte tin lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain output | Active-low reset signal; requires external pull-up; sinks ≥1 mA at 0.5 V |
| 2 - INPUT | Voltage sense input | Monitors supply rail; internally connected to precision comparator input |
| 3 - GND | Analog ground reference | Return path for internal reference and comparator; must be low-impedance |
| 4 - N/C | No connect | Internally unconnected; left floating or tied to GND per layout best practice |
| 5 - N/C | No connect | Internally unconnected; left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.65 μA typical enables >10-year shelf life in battery-backed SRAM or RTC applications |
| Precision 2.0 V threshold | ±2.5% tolerance ensures consistent brown-out detection across production lots and temperatures |
| Built-in hysteresis | 100 mV typical eliminates false resets caused by supply ripple or noise near threshold |
| Wide input voltage range | 1.0 V to 6.0 V operation supports direct monitoring of single-cell LiFePO₄, alkaline, or post-LDO rails |
| SOT-23-5 footprint | Standardized 5-pin surface-mount package enables drop-in replacement and high-density PCB layout |
Applications
| Low-Battery Detection | Microprocessor Reset Control |
|---|---|
Use Scenario: Monitoring a 2-cell alkaline battery (2.0–3.2 V) powering a wireless sensor node. IC Role / Device Role / Timing Role: Voltage detector asserting active-low RESET when cell voltage drops below 2.0 V. Use Value: Prevents data corruption and flash write errors by halting MCU before supply falls below 1.8 V logic threshold. | Use Scenario: Supervising 3.3 V supply to an ARM Cortex-M0 microcontroller in a handheld medical device. IC Role / Device Role / Timing Role: Generating clean, glitch-free power-on and brown-out reset pulse with 60–300 μs delay. Use Value: Guarantees deterministic boot state and avoids undefined register values after supply instability. |
| Power-Fail Indicator | Battery Backup Switchover Monitor |
Use Scenario: Detecting imminent AC/DC adapter failure in a UPS-controlled IoT gateway. IC Role / Device Role / Timing Role: Triggering backup power enable and logging critical shutdown events via open-drain interrupt. Use Value: Enables graceful firmware save and nonvolatile state preservation before main rail collapse. | Use Scenario: Validating backup coin-cell voltage before switching real-time clock (RTC) to battery power. IC Role / Device Role / Timing Role: Sensing 2.0 V threshold on backup rail to initiate switchover only when battery is sufficiently charged. Use Value: Prevents RTC time loss due to premature switchover to weak or depleted backup cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar undervoltage sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB20DBVR | 2.0 V threshold, 350 nA quiescent current, same SOT-23-5 package, but push-pull output | Requires no external pull-up; incompatible with wired-OR reset buses | Select when lowest possible current dominates and open-drain topology is unnecessary |
| MAX809SEUR+T | 2.0 V threshold, 12 μA quiescent current, SC-70-5 package, ±2.5% accuracy | Higher current draw limits use in multi-year battery applications; smaller footprint may complicate rework | Select when board space is constrained and 12 μA standby is acceptable for target lifetime |
Compared with TLV803EB20DBVR and MAX809SEUR+T, the LM8364BALMF20/NOPB uniquely balances ultra-low 0.65 μA current, open-drain flexibility, and proven industrial temperature reliability-making it optimal for long-life, battery-critical reset supervision where wiring topology matters.
Availability
LM8364BALMF20/NOPB is available at Aetrix Electronics and suitable for low-battery detection, microprocessor reset control, and power-fail indicator applications requiring stable component supply, long-term manufacturability, and TI-qualified industrial-grade performance.
Supply support for LM8364BALMF20/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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The LM8364 series belongs to TI's precision voltage supervisor product line, engineered specifically for micropower undervoltage detection in battery-constrained systems where extended operational life and deterministic reset behavior are essential.
FAQ
What is the exact detection threshold voltage of the LM8364BALMF20/NOPB?
The LM8364BALMF20/NOPB has a guaranteed detection threshold voltage of 2.0 V with ±2.5% initial accuracy over temperature. At 25°C, the typical value is 2.0 V, with min/max bounds of 1.950 V and 2.050 V respectively. This threshold is the voltage at which the RESET output transitions from high-impedance to active-low as the input voltage decreases.
Does the LM8364BALMF20/NOPB require an external pull-up resistor on the RESET pin?
Yes, the LM8364BALMF20/NOPB features an open-drain RESET output and requires an external pull-up resistor to define the inactive (high) state voltage level. Typical designs use a 470 kΩ resistor to VIN or VCC. The device itself does not provide internal pull-up; omission results in undefined logic levels on the RESET line.
Can the LM8364BALMF20/NOPB operate with an input voltage below 2.0 V?
Yes-the LM8364BALMF20/NOPB is fully specified to operate down to 1.0 V input voltage. Its internal circuitry remains functional and continues asserting RESET while VIN stays below the 2.0 V threshold, enabling reliable brown-out detection even during deep discharge or low-supply conditions.
What is the hysteresis value of the LM8364BALMF20/NOPB and why is it important?
The LM8364BALMF20/NOPB provides 0.100 V typical hysteresis between its VDET− (2.0 V) and VDET+ (2.1 V) thresholds. This built-in hysteresis prevents rapid toggling of the RESET output when the input voltage lingers near the detection point due to noise or slow ramping, ensuring clean, chatter-free reset signaling.
Is the LM8364BALMF20/NOPB pin-compatible with other members of the LM8364 family?
Yes-all LM8364 variants (e.g., LM8364BALMF27/NOPB, LM8364BALMF30/NOPB) share identical SOT-23-5 pinout and electrical interface. Only the detection threshold differs by suffix (20 = 2.0 V, 27 = 2.7 V, etc.). No PCB redesign is needed when substituting within the LM8364 family for different voltage monitoring points.
LM8364BALMF20/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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/NOPB FAQ
1.How can I place an order for LM8364BALMF20/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM8364BALMF20/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 LM8364BALMF20/NOPB reliable?
The price and inventory of LM8364BALMF20/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM8364BALMF20/NOPB is usually 5 days.
3.What payment methods are accepted for LM8364BALMF20/NOPB?
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4.How is shipping managed for LM8364BALMF20/NOPB?
LM8364BALMF20/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM8364BALMF20/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 LM8364BALMF20/NOPB?
For technical support, including LM8364BALMF20/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM8364BALMF20/NOPB requirements.
6.How does Aetrix verify that LM8364BALMF20/NOPB is sourced from the original manufacturer or authorized distributors?
All LM8364BALMF20/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 LM8364BALMF20/NOPB meets industry standards.
7.What is the process for return or replacement of LM8364BALMF20/NOPB?
All LM8364BALMF20/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM8364BALMF20/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 LM8364BALMF20/NOPB part is unused and in its original packaging.
Return procedure for LM8364BALMF20/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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