TPS3305-25DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS3305-25DG4 is a dual-channel processor supervisor IC from Texas Instruments featuring watchdog timer and manual reset input in a compact 8-pin SOIC package. It monitors two independent supply voltages with a fixed 2.5 V threshold, ensuring reliable system reset under fault conditions. Available from authorized distributors worldwide with competitive pricing and global shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TPS3305-25DG4 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
- Dual-channel voltage supervision with fixed 2.5 V threshold for monitoring two independent power rails simultaneously
- Integrated watchdog timer (WDT) and manual reset input for comprehensive processor fault detection and recovery
- Compact 8-pin SOIC (R-PDSO-G8) plastic package minimizing board space in space-constrained designs
- Low quiescent current consumption ideal for battery-powered and energy-sensitive embedded systems
Applications
The TPS3305-25DG4 is designed for embedded processor and microcontroller systems requiring dual-supply monitoring, watchdog supervision, and reset management. It is commonly used in industrial control units, communication equipment, and consumer electronics where reliable startup and brownout recovery are critical. The integrated watchdog timer provides an added layer of protection against software lockups in safety-critical applications.
Specifications
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.04mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.93V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
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 TPS3305-25DG4:
Frequently Asked Questions
What voltage threshold does the TPS3305-25DG4 monitor?
The TPS3305-25DG4 monitors two supply channels with a fixed threshold of 2.5 V. When either monitored supply falls below this threshold, the device asserts a reset output to protect the processor from operating under undervoltage conditions.
Does the TPS3305-25DG4 include a watchdog timer and how does it function?
Yes, the TPS3305-25DG4 integrates a watchdog timer (WDT) that requires a periodic signal from the processor to prevent system reset. If the processor fails to toggle the WDT input within the defined timeout window, the device triggers a reset, effectively recovering the system from software hangs or lockups.
What package does the TPS3305-25DG4 use and what are its mechanical specifications?
The TPS3305-25DG4 is housed in an 8-pin SOIC package (JESD-30 code R-PDSO-G8) with a plastic/epoxy body and 0.25-inch pin spacing (SOP8,.25 equivalence). This surface-mount package is suitable for standard PCB assembly processes and minimizes the component footprint.
Is the TPS3305-25DG4 RoHS compliant?
The TPS3305-25DG4 carries a JESD-609 code of e4, indicating it meets RoHS lead-free and halogen-free requirements. Buyers should confirm compliance documentation with their authorized distributor for the specific lot and date code.
In what types of applications is the TPS3305-25DG4 typically used?
The TPS3305-25DG4 is commonly deployed in embedded microcontroller and DSP-based systems, industrial control panels, telecommunications equipment, and automotive electronics where dual-rail voltage monitoring and integrated watchdog functionality are essential for system reliability and uptime.
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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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