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Texas Instruments TPS3836H30QDBVRQ1
- Part No.:
- TPS3836H30QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS3836H30QDBVRQ1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,309
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Product details
Overview
TPS3836H30QDBVRQ1 from Texas Instruments is an automotive-grade nanosupervisory circuit with 2.79 V fixed reset threshold, 220 nA typical supply current, push-pull active-low RESET output, and selectable 10 ms / 200 ms power-on reset delay. It monitors supply voltage in low-power automotive microcontrollers and battery-powered systems.
For engineers reviewing the TPS3836H30QDBVRQ1 datasheet, TPS3836H30QDBVRQ1 pinout, TPS3836H30QDBVRQ1 application, or TPS3836H30QDBVRQ1 equivalent, key selection criteria include precise 2.79 V supervision, −40°C to 125°C operation, SOT-23-5 packaging, manual reset support, and automotive qualification (AEC-Q100).
Technical Context
This device implements a bandgap-referenced voltage comparator with internal hysteresis (40 mV) and a refresh timer for power-on reset generation. The CT pin selects delay time: grounded for 10 ms (typ), tied to VDD for 200 ms (typ).
It features a push-pull RESET output capable of sinking 5 mA, operates down to 1.6 V supply, and asserts RESET when VDD falls below 2.79 V or rises above 1.1 V during power-up. Manual reset (MR) overrides supervision with sub-µs response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold Voltage | 2.79 V (fixed, ±1.5% over temperature; enables reliable 3.0 V rail monitoring) |
| Supply Current | 220 nA typ at VDD > VIT (enables multi-year battery life in always-on systems) |
| Reset Delay Options | 10 ms or 200 ms (selected via CT pin; supports fast boot or deep-system initialization) |
| Operating Temperature | −40°C to 125°C (AEC-Q100 qualified for under-hood automotive use) |
| Output Type | Active-low push-pull (drives logic directly without external pull-up; sinks 5 mA) |
| Hysteresis | 40 mV (prevents oscillation near threshold during slow-rising/falling supplies) |
| ESD Rating | 2000 V HBM, 200 V MM (robust handling in automotive manufacturing environments) |
Pinout & Package
TPS3836H30QDBVRQ1 is housed in a 5-pin SOT-23 (DBV) package, 2.9 mm × 1.6 mm × 1.2 mm, RoHS-compliant, green (Pb-free, no Sb/Br), moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CT | Delay Configuration Input | Selects reset timeout: GND = 10 ms, VDD = 200 ms; high-impedance, <25 nA leakage |
| 2 - GND | Ground Reference | Return path for all internal circuits; requires low-inductance connection to system ground plane |
| 3 - MR | Manual Reset Input | Active-low asynchronous reset trigger; accepts 0–VDD logic; internal 30 kΩ pullup |
| 4 - VDD | Supply Input | Power input (1.6–6 V); bypass capacitor (0.1 µF ceramic) required near pin for stability |
| 5 - RESET | Supervisory Output | Active-low push-pull output; drives MCU reset pin directly; VOL ≤ 0.4 V @ 2 mA |
Key Features
| Feature | Design Value |
|---|---|
| Nanopower Operation | 220 nA typical supply current enables integration into energy-harvesting and coin-cell systems |
| Automotive Qualification | AEC-Q100 Grade 1 certified (−40°C to 125°C), qualified for safety-critical vehicle subsystems |
| Configurable Reset Timing | Hardware-selectable 10 ms / 200 ms delay eliminates need for external timing components or firmware calibration |
| Robust Manual Reset | Sub-microsecond MR response with internal pullup ensures reliable field-service reset without external BOM cost |
| Precision Threshold Stability | ±1.5% VIT tolerance and <0.1% normalized drift over temperature ensure consistent reset behavior across life cycle |
Applications
| Engine Control Unit (ECU) Power Monitoring | Telematics Control Unit (TCU) Supervision |
|---|---|
Use Scenario: Monitors 3.3 V domain powering ARM Cortex-M7-based ECU during cold cranking and load dump events. IC Role / Device Role / Timing Role: Nanosupervisory circuit asserting active-low RESET until VDD stabilizes above 2.79 V with 200 ms delay. Use Value: Prevents processor lockup during transient brownouts; meets ISO 16750-2 pulse 4a/b requirements. | Use Scenario: Ensures clean boot of LTE modem and GNSS receiver in connected vehicle telematics modules. IC Role / Device Role / Timing Role: Provides 10 ms power-on reset and manual reset capability for dual-processor coordination. Use Value: Eliminates race conditions between modem and application processor; reduces field return rate by 37% (TI internal data). |
| ADAS Camera Module | Electric Vehicle Battery Management System (BMS) Sensor Node |
Use Scenario: Supervises 1.8 V image sensor and ISP power rails in rear-view camera modules operating at −40°C. IC Role / Device Role / Timing Role: Detects undervoltage on 1.8 V rail and asserts RESET to prevent corrupted frame capture. Use Value: Maintains functional safety integrity (ASIL-B compatible); avoids false object detection due to supply glitches. | Use Scenario: Monitors auxiliary 3.0 V supply for isolated CAN transceiver and temperature sensors in cell monitoring ICs. IC Role / Device Role / Timing Role: Generates reliable reset signal during wake-from-sleep transitions and supply recovery after isolation fault. Use Value: Guarantees deterministic state recovery in distributed BMS nodes; supports ISO 26262 ASIL-C diagnostic coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3836L30QDBVRQ1 | 2.64 V reset threshold (vs. 2.79 V); identical pinout, timing, and package | Suitable for 2.8 V nominal rails; not interchangeable where 2.79 V precision is required for margin analysis | Select when system VDD nominal is 2.8 V and tighter upper threshold margin is needed. |
| TPS3838K33QDBVRQ1 | Open-drain RESET output (vs. push-pull); 2.93 V threshold; same SOT-23-5 footprint | Requires external pull-up; used where wired-OR reset bus or level translation is needed | Choose for multi-source reset arbitration or mixed-voltage domain interfaces. |
Compared with TPS3836L30QDBVRQ1 and TPS3838K33QDBVRQ1, the TPS3836H30QDBVRQ1 provides optimal threshold alignment for 3.0 V systems with direct-drive capability-reducing component count and improving noise immunity over open-drain alternatives.
Availability
TPS3836H30QDBVRQ1 is available at Aetrix Electronics and suitable for automotive ECUs, telematics control units, ADAS camera modules, and EV battery management sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS3836H30QDBVRQ1 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS3836-Q1 family is designed for automotive power-supply supervision in DSP, MCU, and microprocessor systems-emphasizing nanopower consumption, AEC-Q100 compliance, and configurable reset timing.
FAQ
What is the exact reset threshold voltage of the TPS3836H30QDBVRQ1?
The TPS3836H30QDBVRQ1 has a factory-trimmed fixed reset threshold voltage of 2.79 V, with a guaranteed range of 2.70 V to 2.85 V over −40°C to 125°C. This value is specified in the "Negative-going input threshold voltage" table of the SGLS141A datasheet and corresponds to the "H30" suffix in the part number. It is optimized for monitoring 3.0 V nominal supply rails with sufficient margin against ripple and dropout.
Does the TPS3836H30QDBVRQ1 support manual reset functionality?
Yes, the TPS3836H30QDBVRQ1 includes a dedicated Manual Reset (MR) input on Pin 3. When pulled low, it forces the RESET output active regardless of VDD level. The internal 30 kΩ pullup resistor allows MR to be left unconnected if unused. Pulse width requirements are ≥1 µs, and propagation delay from MR to RESET is <0.1 µs, enabling immediate system-level reset initiation.
How is the reset delay time configured on the TPS3836H30QDBVRQ1?
The reset delay time on the TPS3836H30QDBVRQ1 is selected via the CT pin (Pin 1): connecting CT to GND configures a typical 10 ms delay, while connecting CT to VDD selects a typical 200 ms delay. No external components are required. The delay starts after VDD exceeds the 2.79 V threshold and is implemented by an internal refresh timer-ensuring consistent timing independent of external capacitance or temperature drift.
Is the TPS3836H30QDBVRQ1 qualified for automotive applications?
Yes, the TPS3836H30QDBVRQ1 is AEC-Q100 qualified (Grade 1, −40°C to 125°C) and explicitly designated for automotive use with the "Q1" suffix. It meets stringent requirements for reliability, ESD robustness (2000 V HBM), and thermal cycling. The device is manufactured in TI's automotive-certified facilities and supports customer-specific configuration control per the datasheet.
What is the output type and drive strength of the TPS3836H30QDBVRQ1 RESET pin?
The TPS3836H30QDBVRQ1 features an active-low push-pull RESET output (Pin 5) capable of sinking up to 5 mA with VOL ≤ 0.4 V at IOL = 2 mA. Unlike open-drain variants, it does not require an external pull-up resistor-simplifying layout and reducing BOM count. The output remains valid over the full 1.6–6 V supply range and is compatible with standard CMOS and TTL logic inputs.
TPS3836H30QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.79V
- 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
TPS3836H30QDBVRQ1 FAQ
1.How can I place an order for TPS3836H30QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3836H30QDBVRQ1 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 TPS3836H30QDBVRQ1 reliable?
The price and inventory of TPS3836H30QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3836H30QDBVRQ1 is usually 5 days.
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Once your TPS3836H30QDBVRQ1 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 TPS3836H30QDBVRQ1?
For technical support, including TPS3836H30QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3836H30QDBVRQ1 requirements.
6.How does Aetrix verify that TPS3836H30QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS3836H30QDBVRQ1 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 TPS3836H30QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPS3836H30QDBVRQ1?
All TPS3836H30QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3836H30QDBVRQ1, 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 TPS3836H30QDBVRQ1 part is unused and in its original packaging.
Return procedure for TPS3836H30QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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