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Texas Instruments TPS3802L30DCKRG4
- Part No.:
- TPS3802L30DCKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TPS3802L30DCKRG4.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,628
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Product details
Overview
TPS3802L30DCKRG4 from Texas Instruments is a fixed-threshold voltage supervisor IC with 2.64 V detection, 380 ms reset delay, push-pull RESET output, manual reset (MR) input, and SC-70 (DCK) 5-pin package - used for power-on reset supervision in microcontroller-based systems requiring precise supply monitoring.
For engineers reviewing the TPS3802L30DCKRG4 datasheet, TPS3802L30DCKRG4 pinout, TPS3802L30DCKRG4 application, or TPS3802L30DCKRG4 equivalent, this page delivers verified electrical parameters, validated pin functions, confirmed timing behavior, and real-world use context for reliable system initialization design.
Technical Context
The TPS3802L30DCKRG4 implements a precision bandgap reference (1.14 V) and comparator architecture to monitor VDD against a factory-trimmed 2.64 V threshold with ±2.5% accuracy over –40°C to +85°C. Its internal timer generates a fixed 380 ms RESET assertion after VDD recovers above threshold.
It features a dedicated MR input that forces active-low RESET on logic-low assertion, independent of VDD status, and uses a push-pull output stage capable of sinking 5 mA or sourcing –5 mA - eliminating external pull-up requirements in most applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6 V to 6 V - supports operation across 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains. |
| Threshold Voltage | 2.64 V (typ), ±2.5% accuracy - ensures reliable detection of 2.7 V nominal rails with margin for dropout. |
| Reset Delay Time | 380 ms (typ) - provides sufficient hold time for processor core and peripheral stabilization post-power-up. |
| Supply Current | 13–18 mA (typ at VDD = 4 V) - ultra-low quiescent current enables battery-backed or always-on monitoring. |
| Output Type | Push-pull RESET - drives high/low without external pull-up, simplifying PCB layout and reducing BOM count. |
| Manual Reset Input | Active-low MR pin - allows external system-level reset initiation independent of supply voltage condition. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood environments. |
Pinout & Package
TPS3802L30DCKRG4 is housed in a 5-pin SC-70 (DCK) package - 2.0 mm × 1.25 mm footprint, 1.1 mm max height, JEDEC MO-203 compliant, suitable for space-constrained portable and embedded designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low reset output | Push-pull driver asserts low during fault or MR activation; releases high when VDD > 2.64 V for ≥380 ms. |
| 2 - GND | Ground reference | Primary return path for internal circuitry and output stage; must be connected to system ground plane. |
| 3 - MR | Manual reset input | Asynchronous active-low control: pulling below 0.3×VDD forces immediate RESET assertion regardless of VDD level. |
| 4 - VDD | Power supply input | Monitored supply rail; powers internal reference, comparator, and timer; requires local 0.1 µF ceramic bypass. |
| 5 - GND | Ground reference | Second ground terminal - improves noise immunity and thermal performance; ties to same ground net as Pin 2. |
Key Features
| Feature | Design Value |
|---|---|
| Precision threshold accuracy | ±2.5% over temperature - eliminates need for external trimming or calibration in production systems. |
| Factory-programmed delay | 380 ms fixed recovery time - guarantees deterministic reset hold duration without external RC components. |
| Low supply current | 13–18 µA typical - extends battery life in always-on supervisory roles (e.g., RTC backup, wake-on-event circuits). |
| Push-pull output stage | 5 mA sink / –5 mA source capability - directly interfaces with CMOS inputs without pull-up resistors or level shifters. |
| Manual reset support | Dedicated MR pin with TTL-compatible thresholds - enables board-level reset buttons, watchdog timeout signals, or host MCU control. |
Applications
| Industrial PLC Controller | Portable Medical Monitor |
|---|---|
|
Use Scenario: Power sequencing and brownout recovery in programmable logic controller modules operating from 3.3 V DC-DC converters. IC Role / Device Role / Timing Role: Monitors 3.3 V VDD rail and asserts RESET until stable; holds reset for 380 ms to ensure FPGA configuration and firmware boot integrity. Use Value: Prevents corrupted state machines during line transients by enforcing minimum reset pulse width aligned with processor startup timing. |
Use Scenario: Battery-powered ECG device with low-power sleep mode and fast wake-up response. IC Role / Device Role / Timing Role: Supervises 2.7 V LDO output feeding MCU and analog front-end; triggers controlled restart on battery sag below 2.64 V. Use Value: Enables reliable re-initialization after brief voltage dips without false resets, thanks to 2.5% threshold tolerance and hysteresis. |
| Automotive Body Control Module | Wireless Sensor Node |
|
Use Scenario: Cold-cranking scenario where 12 V battery drops to ~6 V, causing intermediate rail collapse in BCM sub-systems. IC Role / Device Role / Timing Role: Detects failure of 2.7 V domain and initiates hardware reset before CAN communication lockup occurs. Use Value: Maintains functional safety compliance by guaranteeing reset assertion within 10 µs of threshold breach and holding for full 380 ms. |
Use Scenario: LoRaWAN node powered by coin cell with intermittent transmission bursts. IC Role / Device Role / Timing Role: Provides power-good indication to enable RF transceiver only when VDD exceeds 2.64 V, preventing invalid transmissions. Use Value: Reduces wasted energy by gating subsystem power via RESET signal, leveraging ultra-low 13 µA quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3801L30DCKR | Same 2.64 V threshold but 200 ms reset delay (vs. 380 ms) | Suitable where shorter reset hold time is acceptable for faster boot cycles | Select when system startup timing budget permits reduced delay; not drop-in due to timing mismatch. |
| TPS3802K33DCKR | 2.93 V threshold (vs. 2.64 V); identical 380 ms delay and SC-70 package | Designed for 3.3 V rail supervision instead of 2.7 V systems | Choose for 3.3 V applications requiring same timing profile and footprint; no PCB change needed if voltage target differs. |
Compared with TPS3802L30DCKRG4, TPS3801L30DCKR offers faster reset release but risks premature release in noisy or slow-ramping supplies, while TPS3802K33DCKR maintains identical timing and layout compatibility but shifts detection to higher voltage - making it ideal for 3.3 V systems needing the same robust delay.
Availability
TPS3802L30DCKRG4 is available at Aetrix Electronics and suitable for industrial automation, portable medical devices, automotive body electronics, and wireless sensor networks requiring stable component supply across extended product lifecycles.
Supply support for TPS3802L30DCKRG4 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 specializing in analog, embedded processing, and power management technologies, with decades of experience in high-reliability supervisory and power-integrity solutions.
The TPS380x family was designed specifically for ultra-small-footprint, low-power supply monitoring in DSP, MCU, and microprocessor systems - prioritizing precision threshold accuracy, factory-set timing, and SC-70 integration for space-constrained applications.
FAQ
What is the exact reset threshold voltage of the TPS3802L30DCKRG4?
The TPS3802L30DCKRG4 has a factory-trimmed supply voltage detection threshold of 2.64 V (typical), with guaranteed accuracy of ±2.5% over –40°C to +85°C. This value is specified in the Electrical Characteristics table under "Negative-going input threshold voltage" for the TPS380xL30 variant, and applies directly to the TPS3802L30DCKRG4.
Does the TPS3802L30DCKRG4 require an external pull-up resistor on the RESET pin?
No, the TPS3802L30DCKRG4 features a push-pull RESET output capable of actively driving both high and low states. It can source up to –5 mA and sink up to 5 mA, eliminating the need for an external pull-up resistor in standard CMOS interface configurations.
What is the function of the MR pin on the TPS3802L30DCKRG4?
The MR (Manual Reset) pin on the TPS3802L30DCKRG4 is an asynchronous, active-low input that forces the RESET output low regardless of VDD level. When pulled below 0.3×VDD, it immediately asserts RESET - enabling external reset buttons, watchdog timeout signals, or host MCU-initiated restarts.
Is the TPS3802L30DCKRG4 compatible with 1.8 V supply rails?
No - the TPS3802L30DCKRG4 is not rated for 1.8 V operation. Its recommended operating range starts at 1.6 V, but its 2.64 V threshold means it will assert RESET continuously on a 1.8 V rail. For 1.8 V supervision, TI recommends the TPS3801E18DCKR (1.71 V threshold) instead of the TPS3802L30DCKRG4.
What package type and dimensions does the TPS3802L30DCKRG4 use?
The TPS3802L30DCKRG4 uses the SC-70 (DCK) package: a 5-pin surface-mount outline measuring 2.0 mm × 1.25 mm with 0.65 mm lead pitch and maximum height of 1.1 mm. Its land pattern and stencil design follow TI's DCK0005A specification, including dual GND pins for improved thermal and noise performance.
TPS3802L30DCKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- 2.64V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 240ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
TPS3802L30DCKRG4 FAQ
1.How can I place an order for TPS3802L30DCKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3802L30DCKRG4 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 TPS3802L30DCKRG4 reliable?
The price and inventory of TPS3802L30DCKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3802L30DCKRG4 is usually 5 days.
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Once your TPS3802L30DCKRG4 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 TPS3802L30DCKRG4?
For technical support, including TPS3802L30DCKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3802L30DCKRG4 requirements.
6.How does Aetrix verify that TPS3802L30DCKRG4 is sourced from the original manufacturer or authorized distributors?
All TPS3802L30DCKRG4 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 TPS3802L30DCKRG4 meets industry standards.
7.What is the process for return or replacement of TPS3802L30DCKRG4?
All TPS3802L30DCKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3802L30DCKRG4, 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 TPS3802L30DCKRG4 part is unused and in its original packaging.
Return procedure for TPS3802L30DCKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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