TPS3110K33DBVT Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
TPS3110K33DBVT is a dual-channel 3.3 V voltage supervisor with integrated watchdog timer from Texas Instruments, available in a compact 6-pin SOT-23 package. It monitors two supply rails up to 3.6 V and asserts reset with a 200 ms typical delay to ensure microcontroller safe start-up. Available in stock worldwide for embedded systems, industrial controllers, and portable equipment power management.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- TPS3110K33DBVT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7675(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS3110K33DBVT?
- Dual-channel voltage supervision monitors 2 independent supply rails simultaneously from a single 6-pin SOT-23 device, reducing BOM count
- Integrated watchdog timer automatically resets the microcontroller if firmware execution stalls, improving system reliability without external logic
- Fixed 3.3 V threshold with factory calibration eliminates external resistor dividers and reduces design complexity for standard logic supply monitoring
What is TPS3110K33DBVT used for?
TPS3110K33DBVT is used in microcontroller-based embedded systems that require reliable power-on reset and brownout detection for 3.3 V digital supply rails. It suits industrial automation equipment, IoT edge nodes, and medical monitoring devices where unattended operation demands autonomous watchdog recovery from software lockups. The dual-channel monitoring capability also makes it suitable for multi-rail FPGA boards and DSP systems where both core and I/O supply voltages must be validated before releasing the device from reset.
What are the specifications of TPS3110K33DBVT?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e4 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.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) | 0.027mA |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 0.9V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +3.3V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TPS3110K33DBVT datasheet?
TPS3110K33DBVT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS3110K33DBVT?
Compatible alternatives and drop-in replacements for TPS3110K33DBVT:
Frequently Asked Questions
How many supply rails can TPS3110K33DBVT monitor simultaneously and what is its detection threshold?
The TPS3110K33DBVT monitors 2 independent supply channels simultaneously, with a fixed threshold set at 3.3 V for standard logic rail supervision. Each channel independently asserts the reset output when its monitored voltage falls below the threshold, ensuring that both rails are within specification before releasing the microcontroller from reset. This dual-channel approach replaces two separate supervisor ICs, saving board area in the compact 6-pin SOT-23 footprint.
What is the watchdog timeout period of TPS3110K33DBVT and how does it protect embedded firmware?
The TPS3110K33DBVT includes an integrated watchdog timer with a typical timeout of 1.6 seconds, which triggers a reset pulse if the microcontroller fails to toggle the watchdog input pin within that interval. This prevents firmware lockups caused by infinite loops, stack overflows, or hardware faults from leaving the system in an unresponsive state. In unattended industrial and IoT deployments, this autonomous recovery feature eliminates the need for manual power cycling or external watchdog supervisor circuits.
What is the reset assertion delay of TPS3110K33DBVT and why is a minimum delay important during power-up?
The TPS3110K33DBVT asserts reset with a typical 200 ms delay after the monitored supply rises above the 3.3 V threshold, ensuring the microcontroller clock oscillator and internal voltage regulators have stabilized before code execution begins. Without this delay, a microcontroller released too early may execute undefined instructions from partially valid memory contents, causing unpredictable startup behavior. The 200 ms window is long enough to accommodate most crystal oscillator start-up times and EEPROM or flash initialization sequences.
Can TPS3110K33DBVT be used in 3.3 V systems that also include 5 V peripheral interfaces?
Yes, TPS3110K33DBVT monitors the 3.3 V core supply rail and generates a reset signal compatible with 3.3 V CMOS logic levels, making it fully interoperable with mixed 3.3 V and 5 V systems when paired with level shifters on the 5 V peripheral interfaces. The device itself operates from a supply voltage range of 0 V to 3.6 V on each monitored channel. Its 6-pin SOT-23 package occupies under 9 mm² of board area, leaving ample space for the level translation components needed in mixed-voltage designs.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.8500 | $3.85 |
| 10+ | $2.5900 | $25.90 |
| 25+ | $2.3760 | $59.40 |
| 100+ | $1.9800 | $198.00 |
| 250+ | $1.8800 | $470.00 |
| 265+ | $0.7675 | $203.39 |
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