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Texas Instruments LM8364BALMFX20/NOPB
- Part No.:
- LM8364BALMFX20/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM8364BALMFX20/NOPB.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,366
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Product details
Overview
LM8364BALMFX20/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, and open-drain active-low RESET output in a 5-pin SOT-23 package-designed for battery-powered microprocessor reset supervision.
For engineers reviewing the LM8364BALMFX20/NOPB datasheet, LM8364BALMFX20/NOPB pinout, LM8364BALMFX20/NOPB application, or LM8364BALMFX20/NOPB equivalent, key selection criteria include threshold voltage tolerance, ultra-low standby current, guaranteed operation down to 1.0 V supply, and hysteresis-enabled noise immunity in space-constrained portable systems.
Technical Context
The LM8364BALMFX20/NOPB integrates a precision bandgap reference, comparator with trimmed threshold (2.0 V ±2.5%), and built-in hysteresis (100 mV typical) to prevent oscillation during slow-voltage transitions. It operates across 1.0 V to 6.0 V input range and ensures reliable reset assertion even at 1.0 V supply.
Its open-drain RESET output supports flexible pull-up configurations (to VIN or external rail), sinks up to 2.5 mA at 0.5 V, and features propagation delay of 60–300 μs. The device guarantees functional operation from −40°C to +85°C with thermal resistance θJA = 265°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 2.0 V ±2.5% - precisely trimmed for accurate low-battery detection at nominal system voltage |
| Quiescent Current | 0.65 μA at VIN = 2.87 V - enables multi-year battery life in coin-cell–powered devices |
| Hysteresis | 100 mV typical - prevents false resets during noisy or slowly recovering supply rails |
| Input Range | 1.0 V to 6.0 V - supports supervision of Li-ion, alkaline, NiMH, and 3.3/5 V logic rails |
| Output Type | Active-low open-drain - allows wired-OR reset bus and flexible voltage-level translation |
| Propagation Delay | 60–300 μs - ensures timely reset assertion without excessive delay in fault response |
| Operating Temp | −40°C to +85°C - qualified for industrial and portable consumer environments |
Pinout & Package
LM8364BALMFX20/NOPB is housed in a 5-pin SOT-23 (DBV) package with 1.45 mm max height, JEDEC MO-178 compliant footprint, and Q3 pin-1 orientation in tape-and-reel delivery.
| 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; threshold triggered when VIN falls below 2.0 V |
| 3 (GND) | Analog ground | Reference return for internal comparator and reference; 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 enables >10-year shelf life in battery-backed SRAM and real-time clocks |
| Precision threshold accuracy | ±2.5% over temperature eliminates need for external calibration in cost-sensitive designs |
| Built-in hysteresis | 100 mV typical prevents chatter on brown-out recovery without external components |
| Wide input voltage range | 1.0 V to 6.0 V supports direct monitoring of single-cell LiFePO₄, dual-alkaline, and 3.3/5 V domains |
| SOT-23 surface-mount package | Small 2.9 × 1.6 × 1.45 mm footprint saves PCB area vs. SC-70 or SOIC alternatives |
Applications
| Low-Battery Detection | Microprocessor Reset Control |
|---|---|
Use Scenario: Monitoring coin-cell or lithium primary battery voltage in wireless sensor nodes to trigger graceful shutdown before deep discharge. IC Role / Device Role / Timing Role: Undervoltage detector asserting active-low RESET when battery drops below 2.0 V with hysteresis to avoid repeated toggling. Use Value: Extends usable battery capacity by 12–18% compared to fixed-threshold comparators lacking hysteresis. | Use Scenario: Ensuring clean power-on and brown-out reset for ARM Cortex-M0+ microcontrollers in handheld medical devices. IC Role / Device Role / Timing Role: Supervisory IC generating synchronized, glitch-free reset pulse with 60–300 μs delay after threshold breach. Use Value: Prevents firmware corruption during unstable power ramp-up or transient dips below 2.0 V. |
| Power-Fail Indicator | Battery Backup Switchover Monitor |
Use Scenario: Signaling AC power loss in smart metering systems using a supercapacitor backup, where main rail collapses from 5 V to <2.0 V. IC Role / Device Role / Timing Role: Threshold comparator driving LED or MCU interrupt pin upon sustained undervoltage condition. Use Value: Enables deterministic power-fail logging and data save operations before backup energy depletes. | Use Scenario: Detecting failure of primary battery in GPS trackers with backup Li-ion cell, triggering switchover control logic. IC Role / Device Role / Timing Role: Precision voltage monitor enabling seamless transition when main supply falls below 2.0 V threshold. Use Value: Eliminates 100+ ms downtime during switchover by providing early warning before critical voltage collapse. |
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 IQ, SOT-23-5, but no built-in hysteresis (requires external resistor network) | Lower quiescent current, but added BOM cost and layout complexity for hysteresis implementation | Select when ultra-low IQ dominates design priority and board space permits external components |
| MAX809SEUR+T | 2.0 V threshold, 12 μA IQ, SOT-23-3, fixed hysteresis (~150 mV), no INPUT pin - monitors VCC directly | Higher quiescent current, smaller 3-pin footprint, but lacks independent voltage monitoring flexibility | Select for simple VCC-tied reset only; not suitable for remote rail or divider-based sensing |
Compared with TLV803EB20DBVR and MAX809SEUR+T, the LM8364BALMFX20/NOPB uniquely balances ultra-low 0.65 μA quiescent current, factory-trimmed 2.0 V threshold, and integrated 100 mV hysteresis in a 5-pin SOT-23-enabling standalone, high-accuracy undervoltage detection without external components or layout trade-offs.
Availability
LM8364BALMFX20/NOPB is available at Aetrix Electronics and suitable for low-power IoT sensors, portable medical devices, and battery-backed memory systems requiring stable component supply and long-term manufacturability.
Supply support for LM8364BALMFX20/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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LM8364 series belongs to TI's precision voltage supervisor product line, engineered specifically for micropower battery-operated systems where extended runtime and reliable reset behavior under marginal supply conditions are critical.
FAQ
What is the exact detection threshold voltage of the LM8364BALMFX20/NOPB?
The LM8364BALMFX20/NOPB has a factory-trimmed detection threshold voltage of 2.0 V with ±2.5% accuracy over temperature. This value is specified as VDET− in the Electrical Characteristics table and applies when the input voltage is decreasing. The corresponding hysteresis adds ~100 mV, resulting in a release threshold (VDET+) of approximately 2.1 V.
Does the LM8364BALMFX20/NOPB require an external pull-up resistor on the RESET pin?
Yes, the LM8364BALMFX20/NOPB features an open-drain RESET output and requires an external pull-up resistor to function correctly. The datasheet recommends a 470 kΩ pull-up to VIN or another compatible rail. Without this resistor, the RESET signal cannot go high and will remain indeterminate during normal operation.
Can the LM8364BALMFX20/NOPB operate with an input voltage below 2.0 V?
Yes, the LM8364BALMFX20/NOPB is fully operational down to 1.0 V input voltage, as confirmed in the Operating Ratings section. It continues to assert RESET while VIN remains below 2.0 V and maintains functionality-including accurate hysteresis behavior-even at 1.0 V, making it suitable for deep brown-out supervision.
What is the quiescent current of the LM8364BALMFX20/NOPB at 2.0 V input?
The LM8364BALMFX20/NOPB draws 0.65 μA typical quiescent current at VIN = 2.87 V. At 2.0 V input, the datasheet specifies 0.55–0.8 μA (min–max) for the 20-suffix variant. This ultra-low current ensures minimal impact on battery life in always-on monitoring applications.
Is the LM8364BALMFX20/NOPB pin-compatible with the MC33464 series?
Yes, the LM8364BALMFX20/NOPB is explicitly stated in the datasheet as pin-for-pin compatible with the MC33464 series. Both share identical 5-pin SOT-23 pinout, active-low open-drain output, and similar electrical thresholds-enabling drop-in replacement in legacy designs originally specifying MC33464.
LM8364BALMFX20/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
LM8364BALMFX20/NOPB FAQ
1.How can I place an order for LM8364BALMFX20/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM8364BALMFX20/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 LM8364BALMFX20/NOPB reliable?
The price and inventory of LM8364BALMFX20/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM8364BALMFX20/NOPB is usually 5 days.
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Once your LM8364BALMFX20/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 LM8364BALMFX20/NOPB?
For technical support, including LM8364BALMFX20/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM8364BALMFX20/NOPB requirements.
6.How does Aetrix verify that LM8364BALMFX20/NOPB is sourced from the original manufacturer or authorized distributors?
All LM8364BALMFX20/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 LM8364BALMFX20/NOPB meets industry standards.
7.What is the process for return or replacement of LM8364BALMFX20/NOPB?
All LM8364BALMFX20/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM8364BALMFX20/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 LM8364BALMFX20/NOPB part is unused and in its original packaging.
Return procedure for LM8364BALMFX20/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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