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Texas Instruments TPS3899DL08DSER
- Part No.:
- TPS3899DL08DSER
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
TPS3899DL08DSER.pdf
- Description:
- NANOPOWER SUPERVISOR WITH PROGRA
- Quantity:
- Payment:
- Shipping:
Inventory:2,200
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Product details
Overview
TPS3899DL08DSER from Texas Instruments is a nano-power, precision voltage supervisor with push-button monitoring capability, ±0.5% threshold accuracy, 125nA typical quiescent current, and programmable sense/reset delay via CTS/CTR pins; it monitors critical rails or manual reset inputs in battery-powered systems requiring ultra-low power and high reliability.
For engineers reviewing the TPS3899DL08DSER datasheet, TPS3899DL08DSER pinout, TPS3899DL08DSER application, or TPS3899DL08DSER equivalent, key selection considerations include its 0.8V fixed threshold, open-drain active-low RESET output, 1.5mm × 1.5mm WSON-6 package, –40°C to +125°C operation, and dual-capacitor-programmable timing for glitch-immune supervision in space-constrained, long-life designs.
Technical Context
The TPS3899DL08DSER implements a precision comparator with built-in 5% hysteresis and separate VDD/SENSE inputs, enabling independent monitoring of supply rails or push-button signals. Its CTS and CTR pins control independent sense and reset delays using external capacitors, with timing ranges from 30µs to ~6.5s.
It supports functional safety system design with documented failure modes and operates across 0.85V–6V VDD (DL/PL) while maintaining ±0.5% VIT– accuracy over –40°C to +125°C. The SENSE pin accepts 0–6V inputs regardless of VDD, and internal 500kΩ pull-ups on CTS/CTR enable default 50µs/80µs delays when floating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIT– Threshold | 0.8 V fixed (DL08 variant); enables reliable brownout detection for 1.8V+ logic rails without external resistors. |
| Quiescent Current | 125 nA typical; extends battery life in always-on IoT sensors and wearables by minimizing standby power draw. |
| Threshold Accuracy | ±0.5% typical; ensures precise reset assertion across temperature, reducing false triggers in industrial controllers. |
| Hysteresis | 5% typical; prevents oscillation during slow-rising/falling rail transitions or noisy push-button inputs. |
| Output Type | Open-drain active-low RESET; allows level-shifting up to 6V and wired-OR configuration with other supervisors. |
| Delay Programmability | CTS/CTR pins accept 0–10 µF capacitors; provides independent, user-adjustable sense (30µs–6.5s) and reset (40µs–6.5s) timing. |
| Operating Temp | –40°C to +125°C; supports deployment in automotive body control modules and industrial motor drives without derating. |
| Package | WSON-6 (1.5mm × 1.5mm); reduces PCB area by >50% vs. SOIC-8, ideal for compact SSDs and portable medical devices. |
Pinout & Package
TPS3899DL08DSER uses a 6-pin, 1.5mm × 1.5mm WSON package with wettable flanks for automated optical inspection. Pin 1 (CTR) is marked by a dot; no thermal pad exposed on bottom surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CTR | Reset delay capacitor terminal | Connects to ground-referenced capacitor to set deassertion delay; internal 500kΩ pull-up enables 80µs default delay when floating. |
| 2 - CTS | Sense delay capacitor terminal | Connects to ground-referenced capacitor to set assertion delay; internal 500kΩ pull-up enables 50µs default delay when floating. |
| 3 - GND | Analog ground reference | Must be connected to low-impedance system ground plane; separates noise-sensitive analog circuitry from digital return paths. |
| 4 - VDD | Supply input | Accepts 0.85V–6V; requires 0.1µF ceramic decoupling capacitor placed within 2mm for stable internal reference operation. |
| 5 - SENSE | Monitoring input | High-impedance (≤0.1µA leakage) input accepting 0–6V; monitors VDD or external rail via resistor divider; immune to <10µs glitches at 5% overdrive. |
| 6 - RESET | Open-drain active-low output | Drives low when SENSE < 0.8V for CTS-delay duration; requires external pull-up to target logic rail (up to 6V); sinks ≥15µA at 300mV VOL. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable sense delay | CTS pin supports 30µs–6.5s adjustable assertion delay via external capacitor; eliminates need for discrete RC networks in push-button debounce. |
| Programmable reset delay | CTR pin supports 40µs–6.5s adjustable deassertion delay; ensures stable power/clock settling before releasing microcontroller from reset. |
| Precision 0.8V threshold | Factory-trimmed 0.8V VIT– with ±0.5% accuracy over full temperature range; guarantees consistent brownout detection without calibration. |
| Nano-power operation | 125nA typical IDD enables multi-year battery life in coin-cell-powered meters and remote sensors without sacrificing supervision fidelity. |
| Independent VDD/SENSE inputs | SENSE pin operates independently of VDD supply; allows monitoring of higher-voltage rails (e.g., 5V USB) while powered from 1.8V LDO. |
| Functional safety documentation | TI provides FIT rate data, failure mode analysis, and safety manual to support ISO 26262 ASIL-B and IEC 61508 SIL-2 system certification. |
Applications
| Electricity Meters | Building Automation |
|---|---|
|
Use Scenario: Supervises MCU and metrology IC power rails during cold-start and grid transients in smart electricity meters. IC Role / Device Role / Timing Role: Voltage supervisor with push-button reset for firmware updates and meter reconfiguration. Use Value: 0.8V threshold ensures reliable brownout detection on 1.8V/3.3V rails; 125nA quiescent current preserves battery backup for >10 years. |
Use Scenario: Monitors HVAC controller supply integrity and enables manual reset via wall-mounted service button. IC Role / Device Role / Timing Role: Dual-role supervisor for rail monitoring and push-button debouncing in DIN-rail mounted controllers. Use Value: Independent CTS/CTR delay programming eliminates external timers; 5% hysteresis prevents chatter during AC line sags. |
| Body Control Module (BCM) | Solid-State Drives |
|
Use Scenario: Ensures safe power sequencing and fault recovery in automotive BCMs handling door locks, lighting, and window controls. IC Role / Device Role / Timing Role: Precision supervisor with extended temperature range for 12V rail monitoring and ECU reset coordination. Use Value: –40°C to +125°C rating meets AEC-Q100 Grade 1 requirements; 0.8V threshold aligns with CAN transceiver undervoltage lockout. |
Use Scenario: Provides power-on reset and supply rail monitoring for NAND flash controllers in enterprise SSDs. IC Role / Device Role / Timing Role: Compact supervisor ensuring stable initialization of PCIe controller and DRAM buffers after hot-plug events. Use Value: 1.5mm × 1.5mm WSON package saves board space in dense 2.5" U.2 form factor; open-drain output interfaces directly with 1.2V/1.8V logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3899PL08DSER | Push-pull active-low RESET output; no external pull-up required; same threshold, timing, and package. | Preferred where board-level pull-up resistors are undesirable or where faster rise times (<100ns) are needed. | Select PL variant when driving heavy capacitive loads or interfacing with legacy microcontrollers lacking internal pull-ups. |
| TPS3897DL08DSER | Lower quiescent current (50nA), no CTS/CTR programmability; fixed 200ms sense/reset delay; same 0.8V threshold and WSON-6 package. | Targeted at cost-sensitive, low-complexity applications where fixed timing suffices and nano-power is paramount. | Choose TPS3897DL08DSER only if programmable delay is unnecessary and 50nA IDD outweighs loss of timing flexibility. |
Compared with TPS3899DL08DSER, the PL08 variant eliminates external pull-up components but increases output drive strength, while the TPS3897DL08DSER trades delay configurability for lower IDD-making TPS3899DL08DSER optimal when both ultra-low power and adaptive timing are required.
Availability
TPS3899DL08DSER is available at Aetrix Electronics and suitable for electricity meters, building automation controllers, and solid-state drives requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS3899DL08DSER 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 expertise in precision power management and industrial-grade IC design.
The TPS3899 product line delivers nano-power, programmable-supervision ICs optimized for battery longevity and system reliability in harsh environments-from smart meters to automotive ECUs and enterprise storage.
FAQ
What is the exact threshold voltage of TPS3899DL08DSER?
The TPS3899DL08DSER has a factory-trimmed fixed negative-going input threshold (VIT–) of 0.8 V, with ±0.5% typical accuracy across –40°C to +125°C. This value is confirmed in the Electrical Characteristics table of the official TI datasheet SLVSFM0C, and applies specifically to the DL08 variant designation in the part number.
Does TPS3899DL08DSER require an external pull-up resistor on the RESET pin?
Yes, TPS3899DL08DSER features an open-drain active-low RESET output and requires an external pull-up resistor to a valid logic rail (up to 6V). The datasheet specifies 100 kΩ as a typical value when VDD = 3.3V and CLOAD = 10 pF; omission will prevent proper high-state logic level establishment.
Can TPS3899DL08DSER monitor a voltage rail higher than its VDD supply?
Yes, TPS3899DL08DSER supports independent VDD and SENSE inputs: the SENSE pin accepts 0–6V regardless of VDD (0.85V–6V), enabling direct monitoring of higher-voltage rails like 5V USB or 3.3V I/O supplies while powered from a lower-voltage LDO-no level-shifting circuitry needed.
How do CTS and CTR capacitors affect timing in TPS3899DL08DSER?
In TPS3899DL08DSER, the CTS capacitor sets the sense delay (assertion time after SENSE falls below 0.8V), ranging from 30µs (no cap) to ~6.5s (10µF); the CTR capacitor sets the reset delay (deassertion time after SENSE rises above 0.804V), similarly scalable. Equations tD-SENSE = 654666 × CCTS + 50µs and tD = 654666 × CCTR + 80µs define exact values per TI SLVSFM0C.
Is TPS3899DL08DSER qualified for automotive applications?
TPS3899DL08DSER is specified for –40°C to +125°C operation and supports functional safety documentation, but it is not AEC-Q100 qualified. For automotive use, TI recommends the pin-compatible TPS3899DL08QDSER (Q1 grade), which undergoes additional stress testing and includes automotive-specific PPAP documentation.
TPS3899DL08DSER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 0.8V
- Output:
- Open Drain or Open Collector
- 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)
TPS3899DL08DSER FAQ
1.How can I place an order for TPS3899DL08DSER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3899DL08DSER 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 TPS3899DL08DSER reliable?
The price and inventory of TPS3899DL08DSER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3899DL08DSER is usually 5 days.
3.What payment methods are accepted for TPS3899DL08DSER?
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4.How is shipping managed for TPS3899DL08DSER?
TPS3899DL08DSER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3899DL08DSER 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 TPS3899DL08DSER?
For technical support, including TPS3899DL08DSER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3899DL08DSER requirements.
6.How does Aetrix verify that TPS3899DL08DSER is sourced from the original manufacturer or authorized distributors?
All TPS3899DL08DSER 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 TPS3899DL08DSER meets industry standards.
7.What is the process for return or replacement of TPS3899DL08DSER?
All TPS3899DL08DSER units undergo pre-shipment inspection (PSI). If there is an issue with TPS3899DL08DSER, 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 TPS3899DL08DSER part is unused and in its original packaging.
Return procedure for TPS3899DL08DSER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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