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Texas Instruments TPS3836J25QDBVRQ1
- Part No.:
- TPS3836J25QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS3836J25QDBVRQ1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS3836J25QDBVRQ1 from Texas Instruments is an automotive-grade nanosupervisory circuit with 2.25 V fixed reset threshold, push-pull active-low RESET output, 220 nA typical supply current, and selectable 10 ms / 200 ms power-on reset delay via CT pin. It monitors supply voltage in low-power microcontroller systems for reliable power-up initialization and brownout detection.
For engineers reviewing the TPS3836J25QDBVRQ1 datasheet, TPS3836J25QDBVRQ1 pinout, TPS3836J25QDBVRQ1 application, or TPS3836J25QDBVRQ1 equivalent, this device delivers precision voltage supervision, manual reset capability, and AEC-Q100 qualification for automotive embedded control, battery-powered instrumentation, and industrial sensor nodes requiring ultra-low quiescent current and −40°C to 125°C operation.
Technical Context
The TPS3836J25QDBVRQ1 integrates a precision bandgap reference, internal voltage divider for fixed 2.25 V threshold (±1.5% over temperature), and a refresh timer that initiates after VDD exceeds VIT. Its CT pin selects between two factory-trimmed delay modes: 10 ms (CT = GND) or 200 ms (CT = VDD), enabling flexible system boot timing without external components.
It features a push-pull RESET output capable of sinking 5 mA, supports manual reset assertion via MR pin with internal 30 kΩ pullup, and asserts RESET when VDD drops below VIT or during power-up until the delay expires. The device operates from 1.6 V to 6 V and maintains stable performance across its full −40°C to 125°C automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold Voltage | 2.25 V (typical), ±1.5% tolerance over −40°C to 125°C - ensures accurate 2.5 V rail supervision with minimal drift |
| Supply Current | 220 nA (typical) at VDD > VIT - enables multi-year battery life in always-on monitoring applications |
| Reset Delay Options | 10 ms (CT = GND) or 200 ms (CT = VDD) - configurable boot timing without external RC network |
| Output Type | Active-low push-pull RESET - drives logic directly without external pullup; sinks up to 5 mA |
| Operating Temperature | −40°C to 125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive electronics |
| ESD Rating | 2000 V HBM, 200 V MM - robust handling in automated assembly and field environments |
| Package | SOT-23 (DBV), 5-pin - footprint-compatible with space-constrained PCBs and standard pick-and-place equipment |
Pinout & Package
SOT-23 (DBV) package: 5-pin, 1.45 mm max height, 2.9 mm × 1.6 mm body, tape-and-reel (3000 pcs), RoHS-compliant, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CT | Delay Configuration Input | Selects reset delay: GND = 10 ms, VDD = 200 ms; high-impedance input draws ≤25 nA |
| 2 - GND | Ground Reference | System ground return path for internal reference and output stage; requires local 0.1 µF bypass |
| 3 - MR | Manual Reset Input | Active-low asynchronous reset trigger; internally pulled up to VDD (30 kΩ); accepts 0–VDD logic levels |
| 4 - VDD | Supply Input | Power input (1.6–6 V); powers internal circuitry and enables RESET assertion when <1.1 V during power-up |
| 5 - RESET | Push-Pull Output | Active-low output; drives low (≤0.4 V @ 2 mA) or high (≥0.8×VDD) - no external pullup needed |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower Operation | 220 nA typical supply current enables >10-year battery life in coin-cell–powered telematics modules |
| Automotive Qualification | AEC-Q100 Grade 1 (−40°C to 125°C) and PPAP-ready - suitable for engine control, ADAS sensors, and body electronics |
| Configurable Reset Timing | Two factory-trimmed delay options (10 ms / 200 ms) selected by single CT pin connection - eliminates timing resistor/capacitor |
| Precision Threshold Stability | 2.25 V threshold with ±1.5% tolerance and <0.01%/°C drift - ensures consistent reset behavior across temperature and voltage rails |
| Robust I/O Interface | MR pin supports direct MCU GPIO connection; RESET output drives CMOS/TTL loads without external components |
Applications
| Engine Control Unit (ECU) Power Monitoring | Telematics Control Unit (TCU) Supervision |
|---|---|
Use Scenario: Monitors 2.5 V domain powering MCU, CAN transceiver, and flash memory in automotive ECU during cold cranking and load dump events. IC Role / Device Role / Timing Role: Nanosupervisory circuit providing power-on reset assertion and brownout detection with 10 ms delay for deterministic boot sequence. Use Value: Prevents firmware corruption by holding MCU in reset until 2.5 V rail stabilizes above 2.25 V, with guaranteed timing margin under worst-case voltage transients. |
Use Scenario: Ensures reliable startup of LTE/GNSS module and secure element in vehicle telematics unit powered by dual Li-ion battery pack. IC Role / Device Role / Timing Role: Voltage supervisor with 200 ms delay (CT = VDD) allowing slow-ramping PMIC outputs to settle before releasing application processor reset. Use Value: Eliminates need for external RC timing network while maintaining AEC-Q100 compliance and supporting battery voltage sag down to 2.0 V. |
| Industrial Battery-Powered Sensor Node | Automotive Infotainment Power Sequencing |
Use Scenario: Powers ultra-low-power ARM Cortex-M0+ MCU and BLE radio in predictive maintenance sensor deployed in remote machinery cabinets. IC Role / Device Role / Timing Role: Nanosupervisory IC asserting RESET during battery voltage drop below 2.25 V and enabling wake-from-sleep via MR pin. Use Value: 220 nA quiescent current extends 200 mAh coin cell lifetime beyond 7 years; MR pin allows host MCU to force safe shutdown on low-battery condition. |
Use Scenario: Coordinates power-up sequence between SoC, audio codec, and display driver ICs in head unit with multiple regulated rails (1.2 V, 1.8 V, 3.3 V). IC Role / Device Role / Timing Role: Dedicated 2.25 V supervisor for 2.5 V auxiliary rail feeding HDMI PHY and USB controller, with 10 ms delay aligned to main SoC reset timing. Use Value: Guarantees clean power sequencing without inter-rail dependencies; push-pull output drives FPGA configuration logic directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3836K33QDBVRQ1 | 2.93 V fixed threshold; identical pinout, timing, and quiescent current | Targets 3.3 V systems instead of 2.5 V; same automotive qualification and SOT-23 package | Select when supervising 3.3 V rails - no layout change required, but verify threshold match to target supply |
| TPS3838J25QDBVRQ1 | Same 2.25 V threshold but open-drain RESET output; requires external pullup resistor | Used where wired-OR reset bus or level translation is needed; higher effective output impedance | Choose for shared reset lines or mixed-voltage systems; adds BOM cost and board area vs. push-pull TPS3836J25QDBVRQ1 |
Compared with TPS3836K33QDBVRQ1 and TPS3838J25QDBVRQ1, the TPS3836J25QDBVRQ1 uniquely combines 2.25 V supervision, push-pull output, and nanopower consumption in a single AEC-Q100-qualified SOT-23 package - making it optimal for space- and current-constrained 2.5 V automotive subsystems.
Availability
TPS3836J25QDBVRQ1 is available at Aetrix Electronics and suitable for automotive ECUs, telematics control units, and industrial battery-powered sensor nodes requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for TPS3836J25QDBVRQ1 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 deep expertise in automotive, industrial, and power management technologies.
The TPS3836-Q1 family was designed specifically for automotive power-supply supervision - delivering nanopower operation, precise voltage thresholds, and AEC-Q100 qualification to ensure reliability in harsh vehicular environments.
FAQ
What is the exact reset threshold voltage of the TPS3836J25QDBVRQ1?
The TPS3836J25QDBVRQ1 has a nominal reset threshold voltage of 2.25 V, with a guaranteed range of 2.16 V to 2.30 V over −40°C to 125°C. This value is factory-trimmed and specified in the electrical characteristics table under "Negative-going input threshold voltage (VIT)" for the J25 variant. The TPS3836J25QDBVRQ1 uses an internal voltage divider to achieve this fixed threshold without external components.
Does the TPS3836J25QDBVRQ1 support manual reset functionality?
Yes, the TPS3836J25QDBVRQ1 supports manual reset via the MR pin (Pin 3). When pulled low, MR forces the RESET output active regardless of VDD level. The device includes an internal 30 kΩ pullup resistor on MR, so connecting MR to VDD disables manual reset and minimizes current draw. The MR pin accepts logic-level inputs and responds within 0.1 µs, as confirmed in the switching characteristics table.
How is the reset delay time configured on the TPS3836J25QDBVRQ1?
The reset delay time on the TPS3836J25QDBVRQ1 is selected using the CT pin (Pin 1): connect CT to GND for a typical 10 ms delay, or to VDD for a typical 200 ms delay. These values are factory-trimmed and specified in the timing requirements table (td parameter). No external capacitor or resistor is required - the delay is generated by an internal refresh timer synchronized to VDD crossing VIT.
Is the TPS3836J25QDBVRQ1 compatible with 1.8 V systems?
No, the TPS3836J25QDBVRQ1 is not intended for 1.8 V system supervision. Its 2.25 V threshold is optimized for 2.5 V rails. For 1.8 V systems, TI offers the TPS3836E18QDBVRQ1 (1.71 V threshold). The TPS3836J25QDBVRQ1's recommended operating supply range is 1.6 V to 6 V, but its supervision function only activates when VDD exceeds its 2.25 V threshold - making it unsuitable for reliable monitoring of 1.8 V supplies.
What packaging and reel specifications apply to the TPS3836J25QDBVRQ1?
The TPS3836J25QDBVRQ1 is supplied in a 5-pin SOT-23 (DBV) package, tape-and-reel format with 3000 units per reel. Reel dimensions are 180 mm diameter and 8.4–9.0 mm width; pin 1 orientation follows quadrant Q3 per JEDEC standards. The device is RoHS-compliant, NIPDAU/SN lead finish, MSL Level-1, and rated for −40°C to 125°C operation - all verified in TI's official packaging addendum.
TPS3836J25QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- 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:
- 10ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS3836J25QDBVRQ1 FAQ
1.How can I place an order for TPS3836J25QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3836J25QDBVRQ1 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 TPS3836J25QDBVRQ1 reliable?
The price and inventory of TPS3836J25QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3836J25QDBVRQ1 is usually 5 days.
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4.How is shipping managed for TPS3836J25QDBVRQ1?
TPS3836J25QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3836J25QDBVRQ1 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 TPS3836J25QDBVRQ1?
For technical support, including TPS3836J25QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3836J25QDBVRQ1 requirements.
6.How does Aetrix verify that TPS3836J25QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS3836J25QDBVRQ1 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 TPS3836J25QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS3836J25QDBVRQ1?
All TPS3836J25QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3836J25QDBVRQ1, 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 TPS3836J25QDBVRQ1 part is unused and in its original packaging.
Return procedure for TPS3836J25QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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