My Inquiry
My Account
Texas Instruments LM3710XKBP-232
- Part No.:
- LM3710XKBP-232
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 9-VFBGA
- Datasheet:
-
LM3710XKBP-232.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 9USMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,773
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM3710XKBP-232 from Texas Instruments is a microprocessor supervisory IC in VSSOP-10 package, providing precision 3.08V reset threshold, 28 µA supply current, manual reset input (MR), power-fail comparator (PFI/PFO), low-line output (LLO), and watchdog timer (WDI) - used for reliable power monitoring in embedded controllers and automotive systems.
For engineers reviewing the LM3710XKBP-232 datasheet, LM3710XKBP-232 pinout, LM3710XKBP-232 application, or LM3710XKBP-232 equivalent, key selection criteria include reset accuracy (±0.5% at 25°C), guaranteed reset assertion down to 1.0V VCC, factory-programmable timeout delays, and dual-supply monitoring capability via PFI and LLO.
Technical Context
The LM3710XKBP-232 integrates five independent monitoring functions: a precision voltage detector with 3.08V reset threshold and ±2% accuracy over −40°C to +85°C; a dedicated 1.225V PFI comparator for external supply monitoring; an LLO comparator set at 1.02×VRST for early brownout warning; a debounced MR input with 56 kΩ internal pull-up; and a transition-sensitive WDI with programmable timeout periods (e.g., 6.2 ms, 102 ms, 1600 ms, or 25.6 s).
Its active-low RESET output remains valid down to VCC = 1.0V, features 1.4 ms typical reset timeout (tRP), and supports system-level fault handling through NMI generation via LLO and interrupt signaling via PFO - all without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V ±0.5% at 25°C; ensures deterministic reset during power-up/down and brownout events |
| VCC Operating Range | 1.0V to 5.5V; enables operation during deep brownout and compatibility with 1.2V–5V logic domains |
| Supply Current | 28 µA typical; minimizes quiescent power draw in battery-backed or energy-sensitive systems |
| Reset Timeout Period | 1.4 ms typical (code "E"); provides sufficient hold time for processor initialization before release |
| Watchdog Timeout | 6.2 ms typical (code "E"); detects microprocessor lockup on monitored data lines within defined window |
| LLO Threshold | 1.02 × VRST = 3.14V; triggers non-maskable interrupt ~2% above reset threshold for early warning |
| PFI Threshold | 1.225V fixed; allows independent monitoring of auxiliary supplies (e.g., raw battery or analog rail) |
Pinout & Package
VSSOP-10 (DGS) package: 3.0 mm × 3.0 mm body, 0.5 mm pitch, 1.1 mm max height, RoHS-compliant tin-silver (SN) lead 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; asserts reset when pulled below 1.225V for >25 µs; includes 56 kΩ internal pull-up |
| 3 | PFI | Power-fail comparator input; referenced to 1.225V internal threshold; monitors secondary supply |
| 4 | WDI | Watchdog input; edge-triggered; resets internal timer on each transition; high-impedance (>100 MΩ) |
| 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; goes low when VCC falls below 1.02×VRST for NMI generation |
| 8 | PFO | Power-fail output; open-drain; goes low when PFI < 1.225V; signals auxiliary supply failure |
| 10 | RESET | Active-low reset output; asserted during power-up, brownout, MR activation, or WDI timeout |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmable reset timeout | Four options (1.4/28/200/1600 ms) selected by part number suffix; eliminates external timing components |
| Integrated low-line comparator | VLLOT = 1.02×VRST with 0.0032×VRST hysteresis; enables early-warning NMI before reset assertion |
| Dual independent supply monitoring | Simultaneous VCC supervision (reset/LLO) and external supply supervision (PFI/PFO) on single die |
| Guaranteed operation down to 1.0V VCC | RESET remains valid and functional even during severe brownout; supports ultra-low-voltage recovery |
| No external components required | Internal reference, pull-up, hysteresis, and timing circuits eliminate BOM cost and layout area |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 3.3V main logic rail and 12V battery-derived supply in a CAN-connected controller exposed to load dump and cold-crank conditions. IC Role / Device Role / Timing Role: LM3710XKBP-232 provides primary reset supervision, early LLO-based NMI for firmware-safe shutdown, and PFI-based battery voltage warning. Use Value: Prevents erratic execution during voltage transients; enables graceful state save before brownout; reduces need for external supervisor ICs. |
Use Scenario: Embedded in door module managing window lift, mirror control, and interior lighting powered by vehicle battery and regulated 5V/3.3V rails. IC Role / Device Role / Timing Role: LM3710XKBP-232 asserts RESET on main VCC drop, triggers LLO for NMI-driven diagnostics, and monitors backup supply via PFI. Use Value: Ensures deterministic boot after ignition cycle; supports ASIL-B-relevant fail-safe behavior; meets automotive temperature range (−40°C to +85°C). |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Supervises dual-rail power (3.3V MCU + 5V analog front-end) in battery-operated infusion pump requiring FDA-grade reliability. IC Role / Device Role / Timing Role: LM3710XKBP-232 delivers precise reset timing, uses WDI to detect motor driver lockup, and employs PFO to flag low battery condition. Use Value: Eliminates risk of uncontrolled motor actuation; enables battery level prediction via PFI divider; satisfies IEC 62304 power supervision requirements. |
Use Scenario: Installed in utility meter with isolated RS-485 interface, real-time clock, and tamper-detection circuitry powered from AC-derived and supercap backup rails. IC Role / Device Role / Timing Role: LM3710XKBP-232 monitors main 3.3V rail (RESET/LLO), senses AC dropout via PFI, and generates WDI-triggered reset if communication stack hangs. Use Value: Maintains RTC integrity during mains failure; prevents corrupted metering data; supports DLMS/COSEM protocol robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Fixed 3.3V reset threshold; no LLO or PFI; only one watchdog timeout (200 ms); 1.6 µA IQ | Lacks early-warning LLO and auxiliary-supply PFI; suitable only for single-rail monitoring | Select when ultra-low quiescent current is critical and dual-supply monitoring is unnecessary |
| MAX6369KA23+T | 3.08V reset; includes push-button MR debounce but no WDI; PFI threshold adjustable via external resistor | No watchdog function; PFI requires external resistor network; LLO not available | Choose when manual reset robustness is prioritized over watchdog monitoring and early warning |
Compared with TPS3808G33DBVR and MAX6369KA23+T, the LM3710XKBP-232 uniquely combines factory-programmed reset/watchdog timing, integrated LLO for NMI, and independent PFI monitoring - enabling single-chip supervision of both main and auxiliary supplies with fail-safe early warning.
Availability
LM3710XKBP-232 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 applications requiring stable component supply across extended temperature ranges.
Supply support for LM3710XKBP-232 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 with emphasis on reliability, precision, and long-term product support.
The LM3710XKBP-232 belongs to TI's microprocessor supervisory circuit family, designed specifically for deterministic power monitoring in safety-critical embedded systems where simultaneous reset, early warning, and auxiliary supply supervision are required.
FAQ
What is the reset threshold voltage of the LM3710XKBP-232?
The LM3710XKBP-232 has a factory-set 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 and does not require external resistors. The LM3710XKBP-232 uses this threshold to assert RESET during power-up, brownout, or manual reset events - ensuring consistent behavior across operating conditions.
Does the LM3710XKBP-232 support watchdog functionality?
Yes, the LM3710XKBP-232 includes a watchdog timer input (WDI) that monitors transitions on a microprocessor output line. If no edge occurs within the factory-programmed timeout period (6.2 ms for LM3710XKBP-232), it triggers RESET. The WDI pin is high-impedance and requires no external pull-up; its behavior is fully integrated into the LM3710XKBP-232's supervision logic.
How does the Low-Line Output (LLO) function in the LM3710XKBP-232?
The LLO output in the LM3710XKBP-232 goes low when VCC falls below 1.02 × VRST (≈3.14V), providing early warning ~2% above the reset threshold. It is an open-drain output intended to generate a non-maskable interrupt (NMI) to the host processor. The LM3710XKBP-232 implements hysteresis (0.0032 × VRST) to prevent chatter during slow voltage decay.
Can the LM3710XKBP-232 monitor a second power supply?
Yes, the LM3710XKBP-232 includes a dedicated Power-Fail Input (PFI) comparator with a fixed 1.225V threshold. When an external voltage divider applies a scaled version of a secondary supply (e.g., battery or analog rail) to PFI, the LM3710XKBP-232 drives PFO low upon crossing the threshold - enabling independent supervision of two supplies using a single LM3710XKBP-232 device.
What package type and footprint does the LM3710XKBP-232 use?
The LM3710XKBP-232 is supplied in a VSSOP-10 (DGS) package: 3.0 mm × 3.0 mm body, 0.5 mm pin pitch, 1.1 mm maximum height. It uses standard JEDEC MO-187BA-compliant land patterns with NSMD pads. The LM3710XKBP-232 is RoHS-compliant, MSL Level-1, and compatible with standard reflow profiles up to 260°C peak.
LM3710XKBP-232 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- 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:
- 9-DSBGA
LM3710XKBP-232 FAQ
1.How can I place an order for LM3710XKBP-232 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3710XKBP-232 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 LM3710XKBP-232 reliable?
The price and inventory of LM3710XKBP-232 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3710XKBP-232 is usually 5 days.
3.What payment methods are accepted for LM3710XKBP-232?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3710XKBP-232 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3710XKBP-232?
LM3710XKBP-232 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3710XKBP-232 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 LM3710XKBP-232?
For technical support, including LM3710XKBP-232 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3710XKBP-232 requirements.
6.How does Aetrix verify that LM3710XKBP-232 is sourced from the original manufacturer or authorized distributors?
All LM3710XKBP-232 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 LM3710XKBP-232 meets industry standards.
7.What is the process for return or replacement of LM3710XKBP-232?
All LM3710XKBP-232 units undergo pre-shipment inspection (PSI). If there is an issue with LM3710XKBP-232, 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 LM3710XKBP-232 part is unused and in its original packaging.
Return procedure for LM3710XKBP-232:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM3710XKBP-232 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…
