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Texas Instruments LM3710XKMM-463/NOPB
- Part No.:
- LM3710XKMM-463/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM3710XKMM-463/NOPB.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:995
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Product details
Overview
LM3710XKMM-463/NOPB from Texas Instruments is a microprocessor supervisory IC in VSSOP-10 package, providing precision 3.08V reset threshold, manual reset input (MR), power-fail comparator (PFI/PFO), low-line output (LLO), and watchdog timer (WDI). It asserts active-low RESET down to 1.0V VCC and supports critical power monitoring in embedded controllers and automotive systems.
For engineers reviewing the LM3710XKMM-463/NOPB datasheet, LM3710XKMM-463/NOPB pinout, LM3710XKMM-463/NOPB application, or LM3710XKMM-463/NOPB equivalent, key selection considerations include its factory-programmed 3.08V reset threshold, 6.2ms watchdog timeout, 1.225V PFI reference, ±0.5% room-temperature reset accuracy, and VSSOP-10 footprint compatibility with space-constrained industrial designs.
Technical Context
The LM3710XKMM-463/NOPB integrates five independent monitoring functions: a precision voltage supervisor with 3.08V threshold and hysteresis, a dedicated 1.225V power-fail comparator (PFI→PFO), an early-warning low-line detector (LLO = 1.02×VRST), a debounced manual reset input (MR with 56kΩ internal pull-up), and a transition-sensitive watchdog timer (WDI) with 6.2ms timeout.
Its RESET output remains valid down to VCC = 1.0V, and all logic outputs (RESET, PFO, LLO) are open-drain with 900µA sink capability at VCC > 2.25V. The device operates across −40°C to +85°C with 28µA typical supply current and requires no external components for basic supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V ±0.5% at 25°C; ensures reliable brownout detection for 3.3V systems |
| Watchdog Timeout | 6.2ms typical; factory-programmed for fast lockup recovery without external timing components |
| PFI Threshold | 1.225V ±25mV; enables precise power-fail warning via external resistor divider |
| LLO Threshold | 1.02 × VRST = 3.14V; provides non-maskable interrupt 2% above reset point for early warning |
| VCC Supply Current | 28µA typical; minimizes quiescent load on battery-backed or low-power systems |
| Reset Assertion Range | Valid down to VCC = 1.0V; guarantees reset integrity during deep brownout conditions |
| Operating Temperature | −40°C to +85°C; qualified for industrial and automotive under-hood environments |
Pinout & Package
VSSOP-10 (DGS) package: 3.0mm × 3.0mm body, 0.5mm lead pitch, 1.1mm max height, RoHS-compliant tin (SN) finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main power supply input (1.0V–5.5V); powers all internal comparators and logic |
| 2 | MR | Manual reset input; active-low trigger with 1.225V threshold and 56kΩ internal pull-up |
| 3 | PFI | Power-fail comparator input; referenced to internal 1.225V bandgap for external supply monitoring |
| 4 | WDI | Watchdog input; edge-triggered monitor of µP data line activity with 6.2ms timeout |
| 5 | GND | Analog/digital ground reference for all comparators and outputs |
| 6, 9 | NC | No-connect pins; factory test only; must be left floating |
| 7 | LLO | Low-line output; open-drain, active-low signal asserted when VCC drops to 3.14V (1.02×VRST) |
| 8 | PFO | Power-fail output; open-drain, active-low signal triggered when PFI < 1.225V |
| 10 | RESET | Active-low reset output; held low for 6.2ms after VCC rise or MR release; valid to 1.0V VCC |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed reset threshold | 3.08V with ±0.5% accuracy at 25°C eliminates external resistor calibration |
| Dedicated power-fail comparator | Independent 1.225V reference enables monitoring of secondary supplies without loading VCC rail |
| Early-warning low-line output | LLO triggers at 3.14V - 2% above reset point - enabling NMI-based graceful shutdown before reset |
| Debounced manual reset input | MR includes internal 56kΩ pull-up and 25µs pulse-width filter to reject noise and contact bounce |
| Watchdog timer with fixed timeout | 6.2ms WDI timeout is factory-set; no external capacitor required for deterministic lockup recovery |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3V system rail in programmable logic controller with backup battery and CAN interface. IC Role / Device Role / Timing Role: Supervises VCC during cold-crank events and asserts RESET if voltage drops below 3.08V; LLO triggers NMI for firmware-initiated safe state entry. Use Value: Prevents erratic operation during 6V–16V battery transients by guaranteeing reset assertion down to 1.0V VCC and enabling 2%-margin early warning via LLO. |
Use Scenario: Embedded in door module controlling window lift, mirror fold, and interior lighting with 12V supply regulation. IC Role / Device Role / Timing Role: Uses PFI to monitor unregulated 12V feed via resistor divider; PFO signals imminent brownout to MCU before main 3.3V rail collapses. Use Value: Provides 1.225V-referenced power-fail detection independent of VCC, allowing predictive fault logging and controlled actuator shutdown prior to system reset. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Ensures fail-safe operation in battery-powered infusion pump with motor driver and display subsystem. IC Role / Device Role / Timing Role: MR input connected to front-panel reset button; WDI monitors UART TX line to detect MCU hang during dose calculation or communication. Use Value: Guarantees deterministic 6.2ms watchdog recovery and hardware-enforced reset initiation without software dependency or external debounce circuitry. |
Use Scenario: Supervises isolated 3.3V supply in revenue-grade meter with metrology ADC and RF mesh communication. IC Role / Device Role / Timing Role: RESET output holds microcontroller in reset until stable 3.08V is confirmed; tRP = 6.2ms ensures sufficient power stabilization before boot. Use Value: Eliminates need for RC-based reset circuits while delivering ±0.5% threshold accuracy over temperature - critical for long-term calibration stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | 3.3V fixed reset threshold; 200ms min watchdog timeout; no LLO output | Lacks low-line warning output; higher watchdog latency limits real-time lockup response | Choose when only basic reset + long watchdog is needed and LLO/NMI functionality is unnecessary |
| MAX6369KA29+T | 2.93V reset threshold; 1.6s watchdog timeout; integrated 100ms power-on reset delay | Higher reset threshold and longer watchdog period unsuitable for fast-recovery systems | Prefer for legacy designs requiring MAXIM pinout compatibility and extended POR delay, not for 3.08V/6.2ms precision |
Compared with TPS3808G33DBVR and MAX6369KA29+T, the LM3710XKMM-463/NOPB uniquely delivers 3.08V precision reset, 6.2ms watchdog, and LLO-based early warning in a single VSSOP-10 package - enabling tighter voltage margins, faster fault recovery, and predictive power management not possible with either alternative.
Availability
LM3710XKMM-463/NOPB is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, medical infusion pumps, smart energy meters, and critical µP power monitoring requiring stable component supply and long-lifecycle support.
Supply support for LM3710XKMM-463/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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer applications.
The LM3710 series was developed specifically for high-reliability microprocessor supervision in space-constrained, battery-aware systems - integrating reset, watchdog, power-fail, and low-line monitoring without external components.
FAQ
What is the factory-programmed reset threshold voltage of the LM3710XKMM-463/NOPB?
The LM3710XKMM-463/NOPB has a factory-programmed reset threshold of 3.08V with ±0.5% accuracy at 25°C and ±2% over −40°C to +85°C. This value is laser-trimmed during production and applies specifically to the LM3710XKMM-463/NOPB variant - other LM3710 suffixes denote different thresholds. The LM3710XKMM-463/NOPB does not support field adjustment of this threshold.
Does the LM3710XKMM-463/NOPB provide an active-high or active-low reset output?
The LM3710XKMM-463/NOPB provides an active-low RESET output. This is confirmed by the LM3710/LM3711 datasheet SNVS150E, which states "LM3710 offers an active-low RESET" and shows RESET asserted low during power-up, brownout, and MR activation. The LM3711 variant provides active-high RESET, but LM3710XKMM-463/NOPB is strictly LM3710-series with active-low behavior.
What is the watchdog timeout period for the LM3710XKMM-463/NOPB?
The LM3710XKMM-463/NOPB has a factory-programmed watchdog timeout period of 6.2ms, corresponding to the "E" suffix in TI's timeout coding scheme. This value is specified in the Electrical Characteristics table under tWD for "Watchdog Timeout Period = E, F, G, H" and is verified in typical performance curves (Figure 9). No external components are required to achieve this timeout.
Can the LM3710XKMM-463/NOPB monitor a supply other than VCC using the PFI pin?
Yes - the PFI pin on the LM3710XKMM-463/NOPB is a dedicated input referenced to an internal 1.225V bandgap, fully independent of VCC. It can monitor any external supply (e.g., raw battery, 5V rail, or isolated auxiliary voltage) via a resistor divider. The LM3710XKMM-463/NOPB datasheet explicitly states this function enables "monitoring a power supply other than VCC" without affecting VCC supervision accuracy.
What package type and dimensions does the LM3710XKMM-463/NOPB use?
The LM3710XKMM-463/NOPB uses the VSSOP-10 (DGS) package: 3.0mm × 3.0mm body size, 0.5mm lead pitch, 1.1mm maximum height, with 10 leads and RoHS-compliant tin (SN) finish. This is confirmed in TI's PACKAGE OPTION ADDENDUM, where LM3710XKMM-463/NOPB is listed as "VSSOP (DGS) | 10" and the mechanical drawing DGS0010A specifies exact dimensions and land pattern requirements.
LM3710XKMM-463/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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 Low
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
LM3710XKMM-463/NOPB FAQ
1.How can I place an order for LM3710XKMM-463/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3710XKMM-463/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 LM3710XKMM-463/NOPB reliable?
The price and inventory of LM3710XKMM-463/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3710XKMM-463/NOPB is usually 5 days.
3.What payment methods are accepted for LM3710XKMM-463/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3710XKMM-463/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3710XKMM-463/NOPB?
LM3710XKMM-463/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3710XKMM-463/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 LM3710XKMM-463/NOPB?
For technical support, including LM3710XKMM-463/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3710XKMM-463/NOPB requirements.
6.How does Aetrix verify that LM3710XKMM-463/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3710XKMM-463/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 LM3710XKMM-463/NOPB meets industry standards.
7.What is the process for return or replacement of LM3710XKMM-463/NOPB?
All LM3710XKMM-463/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3710XKMM-463/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 LM3710XKMM-463/NOPB part is unused and in its original packaging.
Return procedure for LM3710XKMM-463/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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