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Texas Instruments TPS3801J25DCKRG4
- Part No.:
- TPS3801J25DCKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TPS3801J25DCKRG4.pdf
- Description:
- IC 2.25V SUPPLY MON SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TPS3801J25DCKRG4 from Texas Instruments is an ultra-small supply voltage supervisor IC that monitors VDD for power-on reset generation with a fixed 200 ms delay, asserts a push-pull RESET signal when supply drops below 2.25 V (±2.5% threshold accuracy), and operates across –40°C to +85°C in battery-powered microcontroller systems requiring reliable brownout detection.
For engineers reviewing the TPS3801J25DCKRG4 datasheet, TPS3801J25DCKRG4 pinout, TPS3801J25DCKRG4 application, or TPS3801J25DCKRG4 equivalent, key selection criteria include its 2.25 V fixed threshold, SC-70 (DCK) 5-pin package, 9–12 µA supply current, absence of manual reset input, and compatibility with low-voltage DSP/microcontroller power rails.
Technical Context
The TPS3801J25DCKRG4 implements a precision bandgap reference (1.14 V) and comparator architecture to monitor VDD directly-no external SENSE resistor required-ensuring stable threshold behavior over temperature. Its internal timer generates a factory-programmed 200 ms RESET assertion after VDD recovers above 2.25 V.
This device belongs to the TPS380x family optimized for space-constrained applications; unlike TPS3801-01 or TPS3800 variants, it lacks MR input and uses fixed VDD monitoring only, simplifying circuit design while maintaining ±2.5% total threshold accuracy and 30 mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Threshold | 2.25 V (min 2.20 V, max 2.30 V); triggers RESET when VDD falls below this level during brownout or power-up. |
| Reset Delay Time | 200 ms (typical); ensures processor initialization completes before release of RESET signal. |
| Supply Current | 9–12 µA at VDD = 2–6 V; enables multi-year operation in coin-cell or energy-harvesting systems. |
| Output Type | Push-pull active-low RESET; drives loads up to 5 mA without external pull-up, reducing BOM count. |
| Operating Temperature | –40°C to +85°C; validated for industrial and automotive under-hood environments with no derating. |
| Threshold Accuracy | ±2.5% over full temperature range; eliminates need for calibration or trimming in production test. |
| Hysteresis | 30 mV; prevents RESET chatter near threshold during slow-rising or noisy supply conditions. |
Pinout & Package
TPS3801J25DCKRG4 is housed in a 5-pin SC-70 (DCK) package-1.85 mm × 1.35 mm × 1.1 mm-with moisture sensitivity level 1 and lead finish NiPdAu. Pin 1 is located in quadrant Q3 per tape-and-reel orientation standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RESET) | Active-low reset output | Push-pull driver; sinks 5 mA or sources 5 mA; connects directly to µC /RESET pin without pull-up. |
| 2 (GND) | Ground reference | Primary return path for internal reference and comparator; must be low-impedance connection to system ground plane. |
| 3 (MR) | Manual reset input | Not connected internally on TPS3801J25DCKRG4; pin is NC-no external tie required. |
| 4 (VDD) | Supply voltage input | Monitored rail; powers internal circuitry and sets threshold; bypass capacitor (100 nF ceramic) required near pin. |
| 5 (GND) | Second ground terminal | Dual GND pins reduce ground bounce and improve noise immunity in high-speed digital systems. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.25 V threshold | Eliminates external resistor divider and associated tolerance stack-up in VDD monitoring paths. |
| 200 ms factory-programmed delay | Guarantees sufficient time for power stabilization and clock lock before releasing processor reset. |
| Ultra-low 9 µA quiescent current | Extends battery life in portable medical sensors and IoT edge nodes where duty cycling is critical. |
| SC-70 (DCK) 5-pin package | Reduces PCB area by >50% vs. SOT-23-5, enabling placement near SoC power pins with minimal trace inductance. |
| ±2.5% threshold accuracy over temperature | Meets IEC 61508 SIL-2 requirements for functional safety without external calibration components. |
Applications
| Industrial PLC I/O Module | Medical Wearable Sensor Hub |
|---|---|
Use Scenario: Monitors 2.5 V LDO output powering ARM Cortex-M4 MCU and analog front-end in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Voltage supervisor asserting RESET until regulated rail stabilizes post-power-up and during line dips. Use Value: Prevents firmware corruption during 100–200 ms AC line interruptions common in factory floor environments. | Use Scenario: Supervises 2.2 V coin-cell supply feeding ultra-low-power ECG analog signal chain and BLE SoC. IC Role / Device Role / Timing Role: Brownout detector triggering controlled shutdown before ADC reference collapse. Use Value: Enables deterministic low-battery warning and safe data flush using precise 2.25 V trip point aligned with battery discharge curve. |
| Automotive Body Control Module | Wireless Gateway Power Sequencer |
Use Scenario: Validates 2.5 V domain in BCM after ignition switch transition, before CAN transceiver and LIN drivers initialize. IC Role / Device Role / Timing Role: Primary power-good indicator enabling synchronized peripheral enable sequencing. Use Value: Meets ISO 16750-2 pulse 4a transient immunity requirements via fast response (<1 µs propagation delay) and robust hysteresis. | Use Scenario: Coordinates startup of dual-rail 1.8 V/3.3 V SoC in smart home hub, ensuring memory controller initializes before RF subsystem. IC Role / Device Role / Timing Role: Independent reset generator for secondary power domain with guaranteed 200 ms hold time. Use Value: Eliminates race conditions between voltage rails by decoupling reset timing from main PMIC's power-good signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3801L30DCKR | 2.64 V threshold (vs. 2.25 V); same 200 ms delay, SC-70 package, no MR input | Suitable for 2.8 V LDO outputs; not interchangeable without adjusting upstream regulator setpoint | Select when system rail is ≥2.6 V and tighter threshold margin is needed for higher noise immunity. |
| MAX6326XR25-T | 2.5 V threshold, 200 ms delay, SOT-23-5 package, 1.6 µA supply current, no MR | Lower IQ enables 10+ year shelf life in sealed devices; different pinout (RESET on pin 1 vs. pin 4 on TPS3801J25DCKRG4) | Choose for extreme low-power designs where layout allows rework; verify RESET pin alignment before PCB reuse. |
Compared with TPS3801L30DCKR and MAX6326XR25-T, the TPS3801J25DCKRG4 offers optimal fit for 2.2–2.3 V rails with TI's proven process stability and AEC-Q100-aligned qualification, while avoiding pinout changes or external component additions required by alternatives.
Availability
TPS3801J25DCKRG4 is available at Aetrix Electronics and suitable for industrial PLCs, medical wearables, automotive body control modules, and wireless gateways requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPS3801J25DCKRG4 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 over 50 years of reliability engineering heritage and broad automotive/industrial qualification.
The TPS380x product line was designed specifically for ultra-low-power, space-constrained voltage supervision in DSP, microcontroller, and SoC-based systems-emphasizing precision, small footprint, and wide temperature operation without manual reset complexity.
FAQ
What is the exact reset threshold voltage of the TPS3801J25DCKRG4?
The TPS3801J25DCKRG4 has a nominal reset threshold voltage of 2.25 V, with a guaranteed range of 2.20 V to 2.30 V over –40°C to +85°C. This value is factory-trimmed and specified in the Electrical Characteristics table under "Power-up reset voltage" for the TPS380xJ25 variant. The device uses an internal 1.14 V reference and precision resistive divider to achieve this fixed threshold without external components.
Does the TPS3801J25DCKRG4 include a manual reset (MR) input?
No, the TPS3801J25DCKRG4 does not include a functional manual reset input. Pin 3 (MR) is internally unconnected-this is confirmed by the functional block diagram, truth table, and device-specific marking "NJA" in TI's ordering guide. Unlike TPS3801-01 or TPS3800 variants, the J25 version is optimized for fixed-VDD monitoring only, eliminating MR-related layout and debounce circuitry.
What is the recommended bypass capacitor for the TPS3801J25DCKRG4 VDD pin?
A 100 nF ceramic capacitor is recommended for the VDD pin of the TPS3801J25DCKRG4, placed as close as possible to the device. This value is explicitly shown in the typical application schematic in the datasheet and ensures stable operation of the internal reference and comparator during fast transients. X7R or C0G dielectrics are preferred for temperature stability and low ESR.
Can the TPS3801J25DCKRG4 be used with a 1.8 V supply rail?
No, the TPS3801J25DCKRG4 is not specified for use with a 1.8 V supply rail. Its minimum recommended VDD is 2 V per the Recommended Operating Conditions table, and the 2.25 V threshold would be non-functional below that. For 1.8 V systems, TI recommends the TPS3801E18DCKR (1.71 V threshold) or TPS3800G27DCKR (2.5 V threshold with lower delay).
What is the maximum supply voltage rating for the TPS3801J25DCKRG4?
The absolute maximum supply voltage (VDD) for the TPS3801J25DCKRG4 is 7 V, as stated in the Absolute Maximum Ratings table. However, for reliable continuous operation, TI specifies that VDD should not exceed 6 V for more than 1000 hours. The device is fully characterized from 2 V to 6 V, with electrical parameters guaranteed across that range.
TPS3801J25DCKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.25V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 120ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TPS3801J25DCKRG4 FAQ
1.How can I place an order for TPS3801J25DCKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3801J25DCKRG4 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 TPS3801J25DCKRG4 reliable?
The price and inventory of TPS3801J25DCKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3801J25DCKRG4 is usually 5 days.
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5.How can I obtain technical support or documentation for TPS3801J25DCKRG4?
For technical support, including TPS3801J25DCKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3801J25DCKRG4 requirements.
6.How does Aetrix verify that TPS3801J25DCKRG4 is sourced from the original manufacturer or authorized distributors?
All TPS3801J25DCKRG4 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 TPS3801J25DCKRG4 meets industry standards.
7.What is the process for return or replacement of TPS3801J25DCKRG4?
All TPS3801J25DCKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3801J25DCKRG4, 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 TPS3801J25DCKRG4 part is unused and in its original packaging.
Return procedure for TPS3801J25DCKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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