My Inquiry
My Account
Texas Instruments LM810M3X-4.63/NOPB
- Part No.:
- LM810M3X-4.63/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM810M3X-4.63/NOPB.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,167
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM810M3X-4.63/NOPB from Texas Instruments is a 3-pin SOT-23 active-high microprocessor reset supervisor IC designed for precision VCC supply monitoring in embedded digital systems. It asserts a high-level RESET signal when VCC falls below 4.63 V (±3% tolerance), holds it for 240 ms after VCC recovers, and operates across –40°C to +105°C with 15 µA typical supply current - enabling reliable power-up/brown-out reset in industrial controllers and battery-powered instrumentation.
For engineers reviewing the LM810M3X-4.63/NOPB datasheet, LM810M3X-4.63/NOPB pinout, LM810M3X-4.63/NOPB application, or LM810M3X-4.63/NOPB equivalent, key selection criteria include its factory-trimmed 4.63-V threshold, guaranteed reset validity down to VCC ≥ 1 V, immunity to sub-20-µs VCC transients, and compatibility with 5-V nominal supply rails in safety-critical automation and renewable energy systems.
Technical Context
The LM810M3X-4.63/NOPB implements a precision bandgap-based voltage comparator with internal hysteresis and a fixed 240-ms reset timeout timer. Its active-high RESET output remains asserted during VCC undervoltage events and for 240 ms after VCC exceeds the 4.63-V threshold, ensuring sufficient processor initialization time.
It features low-power operation (15 µA typ), operates over full industrial temperature range (–40°C to +105°C), and maintains valid output behavior down to VCC = 1 V - with recommended external 100-kΩ pullup for VCC < 1 V. The device is immune to VCC transients ≤ 20 µs when deviating 100 mV below threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63 V ±3% at 25°C; ensures reliable detection of 5-V supply brown-out before microprocessor malfunction |
| Reset Timeout | 240 ms typical; guarantees sufficient processor reset hold time for full firmware initialization |
| Supply Current | 15 µA typical at 25°C; enables use in always-on, battery-backed systems without significant drain |
| Operating Temp | –40°C to +105°C; supports deployment in harsh industrial and automotive under-hood environments |
| VCC Range | 1.0 V to 5.5 V; ensures functional reset assertion even during deep brown-out or partial power loss |
| Output Type | Active-high open-drain compatible; simplifies interface to CMOS inputs and allows wired-OR reset bus configuration |
| Transient Immunity | Rejects VCC glitches ≤20 µs at 100 mV below threshold; prevents false resets in noisy power environments |
Pinout & Package
SOT-23 (DBZ) package, 2.92 mm × 1.30 mm body size, 3-pin surface-mount outline with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Return path for internal comparator and output driver; must be connected to system ground plane for stable threshold reference |
| RESET | Active-high reset output | Open-drain output pulled high externally; drives high during VCC fault and for 240 ms post-recovery to hold µP in reset |
| VCC | Supply voltage input | Monitored rail input; powers internal circuitry and defines reset threshold reference; accepts 1.0–5.5 V |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.63-V threshold | Factory-trimmed ±3% tolerance ensures accurate detection of 5-V supply collapse without external calibration |
| 240-ms reset timeout | Guaranteed minimum 140 ms / typical 240 ms hold time satisfies ARM Cortex-M and PIC microcontroller reset timing requirements |
| Low 15-µA supply current | Enables integration into energy-sensitive applications such as solar charge controllers and wireless sensor nodes |
| VCC ≥ 1 V output validity | Maintains defined logic state down to near-dead-battery conditions, eliminating need for auxiliary biasing circuits |
| Transient immunity | Immune to 20-µs VCC dips of 100 mV magnitude - reduces susceptibility to switching regulator noise and ESD-induced glitches |
Applications
| Industrial PLCs | Renewable Energy Controllers |
|---|---|
|
Use Scenario: Power sequencing and brown-out recovery in programmable logic controllers operating on 24-V DC supplies with local 5-V regulation. IC Role / Device Role / Timing Role: Monitors 5-V logic rail and asserts active-high RESET to halt program execution until stable power resumes. Use Value: Prevents corrupted I/O writes and firmware lockups during grid fluctuations or generator switchover in factory automation systems. |
Use Scenario: Supervision of MCU supply in solar charge controllers exposed to wide ambient temperature swings and load transients. IC Role / Device Role / Timing Role: Provides deterministic reset pulse after PV panel voltage sag or battery undervoltage events. Use Value: Ensures safe state reinitialization of PWM gate drivers and ADC sampling routines following intermittent power loss. |
| Building Automation Nodes | Portable Test Equipment |
|
Use Scenario: Reset coordination in BACnet/IP edge devices powered by PoE or backup batteries with variable input regulation. IC Role / Device Role / Timing Role: Generates clean, glitch-free reset signal synchronized to 5-V rail stability during power-up and brown-out. Use Value: Eliminates boot failures caused by marginal VCC ramp rates in HVAC sensor modules operating across –25°C to +70°C. |
Use Scenario: Power management in handheld multimeters and oscilloscope probes requiring ultra-low standby current. IC Role / Device Role / Timing Role: Supervises main 5-V LDO output and initiates controlled MCU reset during battery swap or low-voltage shutdown. Use Value: Preserves calibration data integrity and avoids EEPROM corruption during rapid power cycling in field service tools. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX810LUR46+T | 4.63-V threshold, active-high output, but rated only to +85°C and consumes 20 µA typical supply current | Limited to commercial-temperature applications; less suitable for industrial enclosures or outdoor renewable energy installations | Select when cost sensitivity outweighs extended temperature requirement and higher quiescent current is acceptable |
| TPS3808G33DBVR | 3.3-V threshold, adjustable delay (up to 200 s), 1.5-µA quiescent current, but requires external capacitor for timing | Not a direct voltage-match alternative; suited for low-power 3.3-V systems where programmable timeout is needed | Choose only if redesign accommodates different threshold and added external component; not drop-in for 5-V monitoring |
Compared with MAX810LUR46+T, LM810M3X-4.63/NOPB delivers wider temperature support and lower supply current; versus TPS3808G33DBVR, it offers fixed 4.63-V detection without external timing components - simplifying layout and reducing BOM count in 5-V microcontroller reset applications.
Availability
LM810M3X-4.63/NOPB is available at Aetrix Electronics and suitable for industrial PLCs, renewable energy controllers, building automation nodes, and portable test equipment requiring stable component supply with guaranteed long-term manufacturability.
Supply support for LM810M3X-4.63/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 specializing in analog and embedded processing technologies, with leadership in power management, signal chain, and microcontroller solutions.
The LM810 series belongs to TI's microprocessor supervisory IC product line, engineered specifically for robust, low-power reset generation in industrial, automotive, and instrumentation systems demanding precise supply voltage monitoring.
FAQ
What is the exact reset threshold voltage of LM810M3X-4.63/NOPB and how tightly is it specified?
The LM810M3X-4.63/NOPB has a factory-programmed reset threshold of 4.63 V with ±3% tolerance over temperature (–40°C to +105°C). At 25°C, the specification is 4.56 V (min) to 4.70 V (max); at full temperature range, it extends to 4.40 V (min) to 4.86 V (max). This tight tolerance ensures consistent detection of 5-V supply faults without external calibration.
Does LM810M3X-4.63/NOPB provide a valid reset signal when VCC drops below 1 V?
No - LM810M3X-4.63/NOPB guarantees valid active-high RESET output only for VCC ≥ 1 V. Below 1 V, the output becomes undefined. To maintain logic-high state during deep brown-out, TI recommends adding a 100-kΩ pullup resistor from RESET to VCC, as documented in the datasheet's Figure 7.
How long does the RESET signal remain asserted after VCC recovers above the threshold?
The LM810M3X-4.63/NOPB holds the active-high RESET signal for a minimum of 140 ms and typically 240 ms after VCC rises above the 4.63-V threshold. This timeout is internally generated and temperature-stable, meeting standard microprocessor reset timing requirements without external timing components.
What package type and marking does LM810M3X-4.63/NOPB use?
LM810M3X-4.63/NOPB uses the SOT-23 (DBZ) package - a 3-pin, gull-wing surface-mount outline measuring 2.92 mm × 1.30 mm. Its top-side marking is "SEB", as confirmed in TI's orderable addendum and mechanical drawings for this specific variant.
Is LM810M3X-4.63/NOPB RoHS compliant and what is its moisture sensitivity level?
Yes, LM810M3X-4.63/NOPB is RoHS compliant (lead-free, Sn finish) and rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH), per TI's packaging documentation. It is qualified for standard reflow profiles up to 260°C peak temperature, making it compatible with automated SMT assembly processes.
LM810M3X-4.63/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.63V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM810M3X-4.63/NOPB FAQ
1.How can I place an order for LM810M3X-4.63/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM810M3X-4.63/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 LM810M3X-4.63/NOPB reliable?
The price and inventory of LM810M3X-4.63/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM810M3X-4.63/NOPB is usually 5 days.
3.What payment methods are accepted for LM810M3X-4.63/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM810M3X-4.63/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM810M3X-4.63/NOPB?
LM810M3X-4.63/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM810M3X-4.63/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 LM810M3X-4.63/NOPB?
For technical support, including LM810M3X-4.63/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM810M3X-4.63/NOPB requirements.
6.How does Aetrix verify that LM810M3X-4.63/NOPB is sourced from the original manufacturer or authorized distributors?
All LM810M3X-4.63/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 LM810M3X-4.63/NOPB meets industry standards.
7.What is the process for return or replacement of LM810M3X-4.63/NOPB?
All LM810M3X-4.63/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM810M3X-4.63/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 LM810M3X-4.63/NOPB part is unused and in its original packaging.
Return procedure for LM810M3X-4.63/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM810M3X-4.63/NOPB Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
