My Inquiry
My Account
Texas Instruments TPS3899DL35DSER
- Part No.:
- TPS3899DL35DSER
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
TPS3899DL35DSER.pdf
- Description:
- NANOPOWER SUPERVISOR WITH PROGRA
- Quantity:
- Payment:
- Shipping:
Inventory:618
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS3899DL35DSER 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 external capacitors on CTS/CTR pins - used to ensure reliable power-up sequencing and fault recovery in battery-powered industrial controllers.
For engineers reviewing the TPS3899DL35DSER datasheet, TPS3899DL35DSER pinout, TPS3899DL35DSER application, or TPS3899DL35DSER equivalent, key selection considerations include its open-drain active-low RESET output, 0.505V adjustable threshold, 1.5mm × 1.5mm WSON-6 package, –40°C to +125°C operation, and dual-delay programmability for glitch-immune rail and push-button monitoring.
Technical Context
The TPS3899DL35DSER implements a precision comparator with built-in 5% hysteresis and independent capacitor-programmable timing: CTS sets sense delay (assertion) from 30µs to ~6.5s; CTR sets reset delay (deassertion) over the same range. Its SENSE pin operates independently of VDD (0–6V input range), enabling monitoring of rails other than supply voltage.
It supports manual reset via CTS (debounced push-button interface), features undervoltage lockout (VPOR = 700mV), and uses internal 500kΩ pull-ups on CTS/CTR to enable delay programming without external biasing. The DL suffix confirms open-drain active-low RESET output requiring external pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 0.85V to 6V - supports ultra-low-voltage MCUs and wide-input industrial rails |
| Threshold Accuracy | ±0.5% (typical) - enables precise brown-out detection without calibration |
| Quiescent Current | 125nA (typical) - extends battery life in always-on monitoring applications |
| Sense Delay Range | 30µs to 6.5s (CTS-programmable) - rejects short transients while accommodating slow-rising rails |
| Reset Delay Range | 40µs to 6.5s (CTR-programmable) - ensures stable power/clock settling before processor release |
| Hysteresis | 5% (typical) - prevents chatter during marginal voltage conditions |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive and industrial environments |
Pinout & Package
Package: 1.5mm × 1.5mm WSON-6 (DSE), thermally enhanced, exposed pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CTR | Reset delay timing input | Capacitor-connected node controlling deassertion delay; internal 500kΩ pull-up enables single-capacitor programming |
| 2 - CTS | Sense delay & manual reset input | Capacitor-connected node controlling assertion delay; also functions as debounced push-button reset trigger |
| 3 - GND | Ground reference | Common return path for VDD, SENSE, and RESET; requires low-inductance connection to minimize noise coupling |
| 4 - VDD | Supply voltage input | Power source for internal circuitry; requires local 0.1µF ceramic decoupling per best practice |
| 5 - SENSE | Monitored voltage input | High-impedance (≤0.1µA leakage) input supporting 0–6V range; decoupled from VDD for rail redundancy |
| 6 - RESET | Open-drain active-low output | Asserts low during fault; requires external pull-up to system logic voltage (up to 6V), independent of VDD |
Key Features
| Feature | Design Value |
|---|---|
| Programmable sense delay (CTS) | Enables configurable immunity to voltage glitches and push-button bounce without firmware involvement |
| Programmable reset delay (CTR) | Guarantees processor release only after power/clock stabilization, eliminating race conditions |
| Adjustable 0.505V threshold | Supports direct monitoring of core voltages (e.g., 0.5V FPGA rails) without resistor divider losses |
| Independent SENSE/VDD inputs | Allows monitoring of auxiliary rails (e.g., backup battery, isolated sensor supply) while powered from main VDD |
| Functional safety documentation support | Provides FIT rate, failure mode analysis, and diagnostic coverage data for ISO 26262 ASIL-B systems |
Applications
| Electricity Meters | Building Automation Controllers |
|---|---|
Use Scenario: Monitoring backup supercapacitor voltage during mains failure to initiate secure meter state save. IC Role / Device Role / Timing Role: Voltage supervisor asserting RESET to halt MCU writes and trigger nonvolatile storage before brownout. Use Value: 125nA quiescent current extends backup runtime; 5% hysteresis prevents spurious resets during capacitor discharge sag. | Use Scenario: Supervising 3.3V I/O rail powering DALI bus transceivers and sensor interfaces in HVAC nodes. IC Role / Device Role / Timing Role: Detecting rail collapse and holding microcontroller in reset until 3.3V stabilizes post-recovery. Use Value: Programmable CTR delay (e.g., 100ms) ensures DALI PHY clocks settle before communication resumes. |
| Body Control Module (BCM) | Portable Medical Devices |
Use Scenario: Validating 5V supply to LIN transceiver and CAN physical layer before enabling vehicle network startup. IC Role / Device Role / Timing Role: Dual-rail monitor using SENSE for 5V LIN supply and VDD for 12V domain; open-drain RESET shared across domains. Use Value: Independent SENSE/VDD allows redundancy; ±0.5% accuracy ensures compliance with automotive voltage tolerance specs. | Use Scenario: Enabling safe shutdown when lithium coin-cell voltage drops below 2.2V in handheld glucose meters. IC Role / Device Role / Timing Role: Adjustable 0.505V threshold used with resistor divider to detect 2.2V; CTS delay filters button-press noise. Use Value: Nano-power operation preserves battery charge during multi-year shelf life; 1.5mm × 1.5mm footprint saves PCB area in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3899PL35DSER | Push-pull active-low RESET output; no external pull-up required; identical timing/threshold specs | Better suited for systems with strict drive-strength requirements or where pull-up resistor placement is constrained | Select when board layout prohibits external pull-up or when driving heavy capacitive loads directly |
| TPS3897DL35DSER | Lower quiescent current (50nA), no CTS/CTR programmability; fixed 50ms reset delay; same package/threshold | Targeted at cost-sensitive, low-complexity applications where fixed timing suffices | Select when delay flexibility is unnecessary and ultra-low IQ (<100nA) is primary requirement |
Compared with TPS3899PL35DSER, the TPS3899DL35DSER offers greater interface flexibility via external pull-up voltage selection; compared with TPS3897DL35DSER, it provides full timing configurability at the cost of 75nA higher IQ - critical for adaptive power sequencing in smart sensors.
Availability
TPS3899DL35DSER is available at Aetrix Electronics and suitable for electricity meters, building automation controllers, body control modules, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS3899DL35DSER 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 for industrial, automotive, and consumer markets.
The TPS3899 product line delivers nano-power, precision voltage supervision with programmable timing for high-reliability, battery-constrained systems - designed specifically for applications demanding rail redundancy, push-button integration, and functional safety compliance.
FAQ
What is the function of the CTS pin on the TPS3899DL35DSER?
The CTS pin on the TPS3899DL35DSER controls the sense delay time before RESET assertion and doubles as a debounced manual reset input. When connected to a ground-referenced capacitor, it sets the delay from 30µs to ~6.5s; when pulled low externally, it forces an immediate RESET assertion - making it ideal for both voltage glitch rejection and hardware-initiated system resets in the TPS3899DL35DSER.
Does the TPS3899DL35DSER require an external pull-up resistor on the RESET pin?
Yes, the TPS3899DL35DSER requires an external pull-up resistor on the RESET pin because it features an open-drain active-low output. The pull-up can be connected to any voltage rail up to 6V - independent of the VDD supply - enabling level-shifting between different logic domains. This design is confirmed in the Electrical Characteristics table and Typical Application Circuit of the TPS3899DL35DSER datasheet.
What is the adjustable threshold voltage of the TPS3899DL35DSER?
The TPS3899DL35DSER has an adjustable negative-going input threshold voltage of 0.505V (typical), achieved via external resistor divider on the SENSE pin. This value is explicitly specified in Section 5.5 Electrical Characteristics under "VADJ-VIT–" and enables precise monitoring of sub-1V rails such as modern SoC core supplies - a confirmed parameter for the TPS3899DL35DSER variant.
Can the TPS3899DL35DSER monitor a voltage rail different from its VDD supply?
Yes, the TPS3899DL35DSER can monitor a voltage rail different from its VDD supply. Its SENSE pin accepts inputs from 0V to 6V regardless of VDD level, and is electrically decoupled from VDD - enabling true rail redundancy. This architecture is documented in the Functional Block Diagram and Description section, and is a defining feature of the TPS3899DL35DSER for high-availability systems.
What is the maximum operating temperature for the TPS3899DL35DSER?
The TPS3899DL35DSER is fully specified over an operating ambient temperature range of –40°C to +125°C, as stated in the Recommended Operating Conditions table and Device Information section. This rating applies across all electrical parameters and is validated per JEDEC JESD22 thermal test standards - confirming suitability for under-hood automotive and industrial edge computing applications using the TPS3899DL35DSER.
TPS3899DL35DSER 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:
- 3.5V
- 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)
TPS3899DL35DSER FAQ
1.How can I place an order for TPS3899DL35DSER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3899DL35DSER 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 TPS3899DL35DSER reliable?
The price and inventory of TPS3899DL35DSER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3899DL35DSER is usually 5 days.
3.What payment methods are accepted for TPS3899DL35DSER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3899DL35DSER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3899DL35DSER?
TPS3899DL35DSER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3899DL35DSER 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 TPS3899DL35DSER?
For technical support, including TPS3899DL35DSER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3899DL35DSER requirements.
6.How does Aetrix verify that TPS3899DL35DSER is sourced from the original manufacturer or authorized distributors?
All TPS3899DL35DSER 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 TPS3899DL35DSER meets industry standards.
7.What is the process for return or replacement of TPS3899DL35DSER?
All TPS3899DL35DSER units undergo pre-shipment inspection (PSI). If there is an issue with TPS3899DL35DSER, 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 TPS3899DL35DSER part is unused and in its original packaging.
Return procedure for TPS3899DL35DSER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS3899DL35DSER Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
