My Inquiry
My Account
Texas Instruments TPS3808G25DRVT
- Part No.:
- TPS3808G25DRVT
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS3808G25DRVT.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:499
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS3808G25DRVT from Texas Instruments is a low-quiescent-current, programmable-delay supervisory circuit designed to monitor 2.5-V system rails and assert an open-drain RESET signal when the SENSE voltage drops below 2.33 V or MR is pulled low. It delivers 0.5% threshold accuracy, 2.4 μA typical supply current, and user-selectable reset delay from 1.25 ms to 10 s-enabling reliable power-on reset in battery-powered microcontroller systems.
For engineers reviewing the TPS3808G25DRVT datasheet, TPS3808G25DRVT pinout, TPS3808G25DRVT application, or TPS3808G25DRVT equivalent, key selection considerations include its fixed 2.33-V threshold for 2.5-V rails, SOT-23-6 package compatibility, open-drain RESET output with external pull-up support up to 6.5 V, and operation across –40°C to 125°C junction temperature.
Technical Context
The TPS3808G25DRVT implements a precision voltage comparator with built-in hysteresis (1% of VIT) and an on-chip 220-nA current source that charges an external capacitor on the CT pin to set reset delay. Its SENSE input monitors system voltage directly, while MR provides asynchronous manual reset with 90-kΩ internal pull-up.
RESET assertion occurs immediately upon SENSE falling below 2.33 V or MR dropping below 0.3×VDD; de-assertion requires both inputs to exceed their thresholds *and* the full delay period to elapse. The device operates from 1.7 V to 6.5 V supply and maintains 2.4 μA quiescent current across this range at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage (VIT) | 2.33 V - precisely calibrated for monitoring 2.5-V rails with ±0.5% accuracy at TJ = –40°C to 125°C |
| Quiescent Current (IDD) | 2.4 μA typical - enables multi-year battery life in portable devices without compromising supervision reliability |
| Reset Delay Range | 1.25 ms to 10 s - programmable via CT pin capacitor (≥100 pF), or fixed at 20 ms (CT open) or 300 ms (CT to VDD) |
| Supply Voltage Range | 1.7 V to 6.5 V - supports wide-input systems including Li-ion, USB, and industrial 3.3/5-V rails |
| Output Type | Open-drain RESET - allows level-shifting up to 6.5 V with external pull-up resistor (10 kΩ–1 MΩ) |
| Operating Temperature | –40°C to 125°C - fully specified for automotive under-hood and industrial embedded environments |
| SENSE Input Bias Current | ±25 nA - minimizes loading error on high-impedance voltage divider networks |
Pinout & Package
TPS3808G25DRVT is packaged in a 6-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size and standard JEDEC MO-178 footprint. Pin 1 is RESET; pin 2 is GND; pin 3 is MR; pin 4 is CT; pin 5 is SENSE; pin 6 is VDD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET (Pin 1) | Open-drain output | Drives low during reset assertion; requires external pull-up to define logic-high voltage (up to 6.5 V); sinks ≥1 mA at VOL ≤ 0.4 V |
| GND (Pin 2) | Ground reference | Primary return path for internal circuitry and CT capacitor discharge; must be connected to low-impedance system ground plane |
| MR (Pin 3) | Manual reset input | Active-low asynchronous reset trigger; internally pulled up to VDD via 90-kΩ resistor; logic low defined as ≤0.3×VDD |
| CT (Pin 4) | Delay timing control | Connects to external capacitor (≥100 pF) to set delay; open for 20 ms, tied to VDD via 40–200 kΩ for 300 ms; charged by 220-nA current source |
| SENSE (Pin 5) | Voltage monitoring input | Direct connection point for rail under supervision; comparator trips at 2.33 V with 1% hysteresis; input bias ≤±25 nA |
| VDD (Pin 6) | Power supply input | Accepts 1.7–6.5 V; requires 0.1-μF ceramic decoupling capacitor placed adjacent to pin per analog design best practice |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.33-V threshold | 0.5% accuracy over –40°C to 125°C ensures reliable detection of 2.5-V rail brownout without false resets |
| Ultra-low 2.4-μA quiescent current | Enables continuous supervision in energy-constrained applications like coin-cell IoT sensors and wearables |
| Programmable reset delay (1.25 ms–10 s) | Supports diverse processor boot sequences-from fast FPGA configuration to slow ASIC initialization-via single capacitor |
| Open-drain RESET with 6.5-V tolerance | Permits interface to higher-voltage logic domains (e.g., 3.3-V or 5-V MCUs) using simple external pull-up resistor |
| Integrated MR pull-up (90 kΩ) | Eliminates need for external pull-up when manual reset is unused, reducing BOM count and PCB area |
Applications
| Microcontroller Power-On Reset | Battery-Powered Portable Devices |
|---|---|
Use Scenario: Ensuring clean startup of ARM Cortex-M or RISC-V microcontrollers after cold power application or wake-from-sleep events. IC Role / Device Role / Timing Role: Supervisory circuit asserting open-drain RESET until 2.5-V core rail stabilizes and delay expires. Use Value: Prevents code execution before voltage settles, eliminating boot failures caused by marginal VDD transients. |
Use Scenario: Long-term supervision of medical wearables powered by CR2032 coin cells or rechargeable LiPo batteries. IC Role / Device Role / Timing Role: Low-power voltage monitor maintaining 2.4 μA standby draw while guarding against battery depletion-induced crashes. Use Value: Extends usable battery life beyond 5 years in always-on mode without sacrificing reset reliability. |
| FPGA Configuration Sequencing | Industrial Sensor Node Supervision |
Use Scenario: Coordinating power-rail sequencing for Xilinx Artix-7 or Intel MAX 10 FPGAs requiring precise 2.5-V I/O bank enable timing. IC Role / Device Role / Timing Role: Delay-programmable supervisor generating synchronized RESET pulse after 2.5-V rail reaches regulation. Use Value: Eliminates need for discrete RC timing networks or complex CPLD-based sequencers in space-constrained designs. |
Use Scenario: Monitoring 2.5-V analog front-end supplies in DIN-rail mounted condition monitoring sensors operating in factory-floor environments. IC Role / Device Role / Timing Role: High-temperature-stable supervisor asserting RESET during voltage sags induced by motor switching noise. Use Value: Maintains 0.5% threshold accuracy at 125°C ambient, preventing spurious resets in uncooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G25DBVR | SOT-23-6 package with identical electrical specs; differs only in tape-and-reel packaging (3000 vs 250 units) and RoHS marking | Same functional behavior and PCB layout; suitable for high-volume automated assembly where reel quantity matches production batch size | Select when sourcing volume production lots requiring 3k reels; no design or qualification impact |
| MAX6326LT25D3+T | Fixed 2.5-V threshold, 20-ms factory-set delay, 1.5-μA quiescent current, but lacks MR input and CT programmability | Applicable only where fixed delay suffices and manual reset is unnecessary; smaller 2-mm × 2-mm WLP package | Choose for ultra-low-power, space-constrained applications without MR or adjustable timing requirements |
Compared with TPS3808G25DRVT, TPS3808G25DBVR offers identical functionality in alternate packaging for scalability, while MAX6326LT25D3+T trades programmability and MR flexibility for lower IQ and smaller footprint-requiring trade-off analysis based on system-level timing and control needs.
Availability
TPS3808G25DRVT is available at Aetrix Electronics and suitable for microcontroller power-on reset, battery-powered portable devices, FPGA configuration sequencing, and industrial sensor node supervision requiring stable component supply and long-lifecycle assurance.
Supply support for TPS3808G25DRVT 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 TPS3808 family is engineered for precision voltage supervision in resource-constrained systems-prioritizing ultra-low quiescent current, tight threshold accuracy, and flexible reset timing to ensure robust system initialization and fault recovery.
FAQ
What is the exact threshold voltage of the TPS3808G25DRVT?
The TPS3808G25DRVT has a nominal threshold voltage (VIT) of 2.33 V, factory-trimmed for monitoring 2.5-V supply rails. Its accuracy is ±0.5% over the full operating temperature range of –40°C to 125°C, verified per TI's SBVS050M datasheet Section 5 and Table 7.5.
How do I configure the reset delay time for the TPS3808G25DRVT?
The TPS3808G25DRVT supports three delay configurations: leave CT pin open for 20 ms, connect CT to VDD via a 40–200-kΩ resistor for 300 ms, or connect CT to GND via a ≥100-pF capacitor for user-defined delays from 1.25 ms to 10 s. Equation 1 in Section 8.3.2 of the datasheet calculates exact values.
Does the TPS3808G25DRVT require an external pull-up resistor on the RESET pin?
Yes-the TPS3808G25DRVT features an open-drain RESET output and requires an external pull-up resistor (10 kΩ to 1 MΩ) to define the logic-high voltage level. This resistor also enables level-shifting, allowing RESET to interface with logic domains up to 6.5 V, as specified in Section 6 and Figure 9-1.
Can the TPS3808G25DRVT monitor voltages other than 2.5 V?
No-the TPS3808G25DRVT is a fixed-threshold variant optimized specifically for 2.5-V rails (VIT = 2.33 V). For adjustable or other fixed thresholds, TI offers variants like TPS3808G01 (adjustable down to 0.405 V) or TPS3808G33 (3.07 V for 3.3-V rails), as listed in Table 5 of the datasheet.
What is the maximum supply voltage the TPS3808G25DRVT can tolerate on VDD?
The TPS3808G25DRVT supports a VDD supply range of 1.7 V to 6.5 V per Section 7.3. Its absolute maximum rating is 7 V, but operation above 6.5 V is not guaranteed and may cause permanent damage. The device maintains 2.4 μA typical IDD across this full operational range.
TPS3808G25DRVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.33V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS3808G25DRVT FAQ
1.How can I place an order for TPS3808G25DRVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS3808G25DRVT 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 TPS3808G25DRVT reliable?
The price and inventory of TPS3808G25DRVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3808G25DRVT is usually 5 days.
3.What payment methods are accepted for TPS3808G25DRVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3808G25DRVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS3808G25DRVT?
TPS3808G25DRVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS3808G25DRVT 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 TPS3808G25DRVT?
For technical support, including TPS3808G25DRVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3808G25DRVT requirements.
6.How does Aetrix verify that TPS3808G25DRVT is sourced from the original manufacturer or authorized distributors?
All TPS3808G25DRVT 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 TPS3808G25DRVT meets industry standards.
7.What is the process for return or replacement of TPS3808G25DRVT?
All TPS3808G25DRVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS3808G25DRVT, 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 TPS3808G25DRVT part is unused and in its original packaging.
Return procedure for TPS3808G25DRVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS3808G25DRVT 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…
