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Texas Instruments TPS3899PL16DSERQ1
- Part No.:
- TPS3899PL16DSERQ1
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
TPS3899PL16DSERQ1.pdf
- Description:
- AUTOMOTIVE NANOPOWER SUPERVISOR
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS3899PL16DSERQ1 from Texas Instruments is a nano-power, AEC-Q100 Grade 1 automotive voltage supervisor with push-pull active-low RESET output, ±0.5% threshold accuracy, 125nA typical quiescent current, and programmable sense/reset delay via external capacitors on CTS/CTR pins-used for reliable power-on reset and push-button monitoring in ADAS camera modules and radar ECUs.
For engineers reviewing the TPS3899PL16DSERQ1 datasheet, TPS3899PL16DSERQ1 pinout, TPS3899PL16DSERQ1 application, or TPS3899PL16DSERQ1 equivalent, key selection considerations include its 0.505V adjustable VIT− threshold, 1.5mm × 1.5mm WSON-6 package, dual-capacitor timing control, built-in 5% hysteresis, and operation across –40°C to +125°C ambient.
Technical Context
The TPS3899PL16DSERQ1 implements a precision comparator with separate SENSE and VDD inputs, enabling independent rail monitoring and supply redundancy. Its internal reference delivers ±0.5% VIT− accuracy over temperature, and built-in 5% hysteresis prevents chatter during threshold crossings.
Sense and reset delays are independently programmed via external capacitors on CTS (sense assertion) and CTR (reset deassertion), with base delays of 50µs and 80µs when pins float. The push-pull active-low RESET output drives directly without pull-up resistors and supports 0.85V–6V VDD with 1V–6V SENSE range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIT− Threshold | 0.505 V (adjustable); enables precise monitoring of low-voltage rails like 0.6V–1.2V core supplies. |
| Quiescent Current | 125 nA typical; extends battery life in always-on automotive sensors and telematics modules. |
| Threshold Accuracy | ±0.5% typical; ensures deterministic reset behavior across –40°C to +125°C without calibration. |
| Hysteresis | 5% typical (VHYS = 0.05 × VIT−); eliminates false resets caused by noise or slow-rising/falling rails. |
| Output Type | Push-pull, active-low RESET; eliminates need for external pull-up resistor and simplifies interface to MCU reset inputs. |
| Timing Control | CTS/CTR pins accept 0–10 µF capacitors; enables independent, user-defined sense (6.2 ms @ 10 nF) and reset (6.2 ms @ 10 nF) delays. |
| Operating Voltage | VDD: 0.85V–6V; SENSE: 0.85V–6V; supports direct monitoring of diverse rails including 1.8V, 3.3V, and 5V domains. |
Pinout & Package
Package: 1.5mm × 1.5mm, 6-pin WSON (DSE) - ultra-compact footprint ideal for space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CTR | Reset delay timing input | Connects to ground-referenced capacitor to set RESET deassertion delay; internal 500 kΩ pull-up enables floating default (80 µs). |
| 2 - CTS | Sense delay timing input | Connects to ground-referenced capacitor to set RESET assertion delay; internal 500 kΩ pull-up enables floating default (50 µs). |
| 3 - GND | Ground reference | Analog/digital common return; must be low-impedance and decoupled near VDD and SENSE pins. |
| 4 - VDD | Supply input | Powers internal circuitry; requires 0.1 µF ceramic decoupling capacitor placed adjacent to pin. |
| 5 - SENSE | Monitor input | High-impedance (≤0.1 µA leakage) input for direct rail or resistor-divider monitoring; accepts 0.85V–6V signals independent of VDD. |
| 6 - RESET | Active-low push-pull output | Drives low during fault condition; no external pull-up needed; sinks up to 2 mA at 3.3V VDD. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation, HBM ±2 kV, CDM ±750 V-meets automotive reliability requirements. |
| Separate SENSE and VDD pins | Enables monitoring of voltage rails different from device supply (e.g., monitor 1.2V core while powered from 3.3V), supporting redundant safety architectures. |
| Programmable glitch immunity | CTS capacitor sets minimum pulse rejection window (e.g., 10 nF → ~6.2 ms); suppresses transients shorter than configured sense delay. |
| Manual reset capability | CTS pin doubles as manual reset input: pulling CTS low forces immediate RESET assertion, enabling system-level recovery triggers. |
| Low-voltage compatibility | Operates down to 0.85V VDD and monitors rails as low as 0.505V-supports next-generation ultra-low-power automotive SoCs. |
Applications
| ADAS Camera Module | Radar ECU |
|---|---|
Use Scenario: Monitors 1.2V image sensor core rail and 2.8V analog front-end supply during cold start and load dump events. IC Role / Device Role / Timing Role: Precision voltage supervisor asserting RESET until both rails stabilize above VIT− + VHYS, with CTS/CTR delaying assertion/deassertion to avoid transient-induced false resets. Use Value: Prevents corrupted frame capture or sensor lockup by enforcing clean power sequencing with ±0.5% threshold tolerance across temperature. |
Use Scenario: Supervises 1.8V DSP core and 5V RF power amplifier supply in millimeter-wave radar units exposed to engine bay thermal cycling. IC Role / Device Role / Timing Role: Dual-rail monitoring via SENSE/VDD separation; push-pull RESET directly interfaces radar MCU's active-low reset pin without level-shifting. Use Value: Ensures deterministic boot after brownout using 125nA quiescent current and 5% hysteresis-critical for ASIL-B functional safety compliance. |
| Infotainment Head Unit | Automotive Gateway |
Use Scenario: Detects push-button press (via resistor divider on SENSE) and validates 3.3V system rail before initiating firmware update sequence. IC Role / Device Role / Timing Role: Combines precision voltage supervision and debounced button detection: CTS filters mechanical bounce; CTR enforces minimum reset hold time. Use Value: Eliminates need for separate supervisor + GPIO debounce IC-reduces BOM count and PCB area in cost-sensitive head units. |
Use Scenario: Monitors 5V CAN transceiver supply and 1.1V microcontroller core in multi-protocol gateways handling CAN FD, LIN, and Ethernet. IC Role / Device Role / Timing Role: Uses SENSE pin to track critical 1.1V rail while VDD powered from 5V; RESET output synchronizes gateway boot across domains. Use Value: Enables single-chip supervision of heterogeneous voltage domains-improves startup coordination and reduces system-level reset arbitration complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3899DL16DSERQ1 | Open-drain active-low output; requires external pull-up resistor; identical timing, accuracy, and package. | Suitable where RESET must be shared across multiple devices or pulled to a different voltage domain (e.g., 1.8V logic). | Select when system architecture mandates wired-OR reset bus or level translation; not drop-in due to output topology change. |
| TLV809E26DBVRQ1 | Fixed 2.63V threshold; no programmable delay; 350nA IQ; SOT-23-3 package; no CTS/CTR pins or adjustable VIT−. | Used for simple single-rail reset only-lacks push-button monitoring, dual-rail capability, or delay tuning. | Choose for cost-sensitive, non-programmable applications where 2.63V threshold suffices and board space allows larger SOT-23. |
Compared with TPS3899PL16DSERQ1, the DL16 variant offers identical supervision intelligence but requires external pull-up infrastructure, while TLV809E26DBVRQ1 sacrifices adjustability and nano-power efficiency for lower unit cost and smaller footprint in fixed-threshold use cases.
Availability
TPS3899PL16DSERQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, radar ECUs, and infotainment head units requiring stable component supply under AEC-Q100 automotive qualification.
Supply support for TPS3899PL16DSERQ1 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 and embedded processing technologies, with decades of automotive-grade product development and manufacturing expertise.
The TPS3899-Q1 product line delivers ultra-low-power, high-accuracy voltage supervision for safety-critical automotive subsystems-including ADAS, body electronics, and powertrain-where deterministic reset behavior and long-term reliability are mandatory.
FAQ
What is the function of the CTS pin on the TPS3899PL16DSERQ1?
The CTS pin on the TPS3899PL16DSERQ1 sets the sense delay-the time between SENSE voltage falling below VIT− and RESET assertion. It accepts a ground-referenced capacitor (0–10 µF); with no capacitor, internal 500 kΩ pull-up yields ~50 µs delay. CTS also serves as a manual reset input: pulling it low forces immediate RESET assertion, enabling system-level recovery triggers independent of rail voltage.
Does the TPS3899PL16DSERQ1 require an external pull-up resistor on the RESET pin?
No, the TPS3899PL16DSERQ1 features a push-pull active-low RESET output and does not require an external pull-up resistor. This distinguishes it from open-drain variants like the TPS3899DL16DSERQ1. The push-pull driver can sink up to 2 mA at 3.3V VDD and interfaces directly with standard MCU reset inputs, simplifying layout and reducing BOM count.
What is the operating voltage range for VDD and SENSE on the TPS3899PL16DSERQ1?
The TPS3899PL16DSERQ1 supports VDD from 0.85V to 6V and SENSE from 0.85V to 6V. This wide range enables monitoring of diverse rails-including 1.2V cores, 1.8V I/O, 3.3V peripherals, and 5V analog supplies-while allowing flexible power sourcing. SENSE operates independently of VDD, permitting cross-rail supervision critical for automotive redundancy schemes.
How accurate is the threshold voltage of the TPS3899PL16DSERQ1 over temperature?
The TPS3899PL16DSERQ1 delivers ±0.5% typical VIT− threshold accuracy over the full –40°C to +125°C operating temperature range. This precision is maintained without calibration or trimming, ensuring deterministic reset behavior in engine bay and ADAS environments where thermal drift could otherwise cause premature or delayed resets.
Can the TPS3899PL16DSERQ1 monitor a push-button input?
Yes, the TPS3899PL16DSERQ1 is explicitly designed for push-button monitoring. The high-impedance SENSE pin accepts a simple resistor divider tied to a momentary switch; pressing the button pulls SENSE below VIT−, triggering RESET after the CTS-configured delay. Built-in hysteresis and CTS-based glitch immunity prevent false triggers from contact bounce or EMI.
TPS3899PL16DSERQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Regulator/Supervisor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.6V
- Output:
- Push-Pull
- Reset:
- Active Low
- Reset Timeout:
- 40µs Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (1.5x1.5)
TPS3899PL16DSERQ1 FAQ
1.How can I place an order for TPS3899PL16DSERQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3899PL16DSERQ1 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 TPS3899PL16DSERQ1 reliable?
The price and inventory of TPS3899PL16DSERQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3899PL16DSERQ1 is usually 5 days.
3.What payment methods are accepted for TPS3899PL16DSERQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3899PL16DSERQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3899PL16DSERQ1?
TPS3899PL16DSERQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3899PL16DSERQ1 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 TPS3899PL16DSERQ1?
For technical support, including TPS3899PL16DSERQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3899PL16DSERQ1 requirements.
6.How does Aetrix verify that TPS3899PL16DSERQ1 is sourced from the original manufacturer or authorized distributors?
All TPS3899PL16DSERQ1 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 TPS3899PL16DSERQ1 meets industry standards.
7.What is the process for return or replacement of TPS3899PL16DSERQ1?
All TPS3899PL16DSERQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3899PL16DSERQ1, 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 TPS3899PL16DSERQ1 part is unused and in its original packaging.
Return procedure for TPS3899PL16DSERQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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