TPS3125J12DBVTG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments TPS3125J12DBVTG4 is a processor supervisor IC with 0.85 V threshold monitoring, watchdog timer, and manual reset input in a 5-pin SOT-23 package. Provides power-on reset generation and manual reset capability for reliable microcontroller supervision. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TPS3125J12DBVTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.85 V fixed threshold voltage supervisor monitors low-voltage processor rails common in modern sub-1 V core supply designs
- Integrated watchdog timer and manual reset input provide dual-layer fault protection without requiring external discrete supervisory components
- Power-on reset generator ensures controlled processor startup sequencing, preventing spurious execution during supply ramp-up conditions
- Ultra-compact 5-pin SOT-23 package minimizes PCB area consumption while delivering complete supervisory functionality for space-constrained embedded designs
Applications
The TPS3125J12DBVTG4 is used in microcontroller and DSP-based systems to ensure reliable startup and recovery from software lockups through its watchdog timer function. It is well suited for industrial control panels, automotive body electronics, and IoT edge nodes where unattended operation requires automatic system reset on fault conditions. The manual reset input also supports front-panel reset buttons in embedded systems and test fixtures requiring controlled processor restart capability.
Specifications
| YTEOL | 0 |
| Additional Feature | MANUAL RESET INPUT; POWER-ON RESET GENERATOR |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.025mA |
| Supply Voltage-Max (Vsup) | 3.3V |
| Supply Voltage-Min (Vsup) | 0.85V |
| Supply Voltage-Nom (Vsup) | 1.2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS3125J12DBVTG4:
Rochester Electronics LLC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, GREEN, PLASTIC, SOT-23, 5 PIN
Frequently Asked Questions
What voltage threshold does the TPS3125J12DBVTG4 monitor?
The TPS3125J12DBVTG4 monitors a fixed 0.85 V threshold. When the monitored supply voltage drops below this level, the device asserts its reset output to hold the processor in reset. This sub-1 V threshold is designed for modern low-voltage processor core supplies common in advanced CMOS technology nodes.
Does the TPS3125J12DBVTG4 include a watchdog timer?
Yes, the TPS3125J12DBVTG4 incorporates a watchdog timer (WDT). If the processor fails to toggle the watchdog input within the programmed timeout period, the device asserts a reset, recovering the system from software hangs or infinite loops without human intervention, which is essential for unattended industrial and embedded applications.
What is the manual reset input used for on the TPS3125J12DBVTG4?
The manual reset input (MR) allows an external signal or push-button to force the supervisor to assert its reset output regardless of the supply voltage level. This feature enables controlled software-initiated resets, front-panel reset buttons, and automated test sequences that need to restart the processor under known conditions.
What package does the TPS3125J12DBVTG4 use?
The TPS3125J12DBVTG4 is packaged in a 5-pin SOT-23 (JESD-30 code R-PDSO-G5), one of the smallest commercially available surface-mount packages. Despite its tiny footprint, the SOT-23 provides all five required connections for a full-featured supervisor, making it ideal for area-constrained designs on modern high-density PCBs.
Is the TPS3125J12DBVTG4 RoHS compliant?
Yes, the TPS3125J12DBVTG4 carries JESD-609 code e4, confirming it is lead-free and RoHS compliant. The plastic/epoxy package body meets halogen-free material standards, making this device suitable for products that must comply with European Union RoHS and REACH environmental directives.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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