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Texas Instruments TLC7725QPWR
- Part No.:
- TLC7725QPWR
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC7725QPWR.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,255
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Product details
Overview
TLC7725QPWR from Texas Instruments is a micropower supply voltage supervisor IC with fixed 2.25 V sense threshold, active-high RESET output, programmable delay via external capacitor, and operation across –40°C to 125°C. It provides power-on reset generation, undervoltage supervision, and power-down control for static RAM with battery backup in microprocessor systems.
For engineers reviewing the TLC7725QPWR datasheet, TLC7725QPWR pinout, TLC7725QPWR application, or TLC7725QPWR equivalent, this device is selected for precision reset timing, ultra-low quiescent current (≤16 µA), wide supply range (2–6 V), defined RESET assertion down to VDD ≥1 V, and compatibility with high-reliability industrial and automotive power monitoring designs.
Technical Context
The TLC7725QPWR implements a precision voltage-sensing comparator with temperature-compensated internal reference and hysteresis (70 mV) to prevent chatter during threshold crossing. Its internal timer generates a user-programmable reset delay (td = 2.1 × 10⁴ × CT) after SENSE voltage recovers above 2.25 V.
It supports dual-mode reset control: standard undervoltage supervision on SENSE input, and power-down coordination via CONTROL pin-when tied low, RESET becomes active-high and enables automatic disabling of battery-backed SRAM during main supply failure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Threshold | 2.25 V (fixed, ±3% tolerance over temp; ensures reliable detection of 2.5 V rail collapse) |
| Supply Range | 2 V to 6 V (supports Li-ion, 3.3 V, and 5 V systems without external regulation) |
| Quiescent Current | ≤16 µA (enables multi-year battery life in always-on monitoring applications) |
| Reset Delay | Programmable via external CT (e.g., 100 nF → ~2.1 ms; ensures full system stabilization before release) |
| Operating Temp | –40°C to 125°C (Q-grade qualification for under-hood and industrial control environments) |
| Output Type | Active-high totem-pole RESET (drives loads directly; no pull-up required) |
| Hysteresis | 70 mV (prevents oscillation during slow-rising/falling supply transitions) |
Pinout & Package
Package: 8-pin TSSOP (PW), 3.0 mm × 4.4 mm, 0.65 mm pitch, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 2–6 V; RESET asserted when VDD drops below 1 V during power-down |
| GND | Ground reference | Common return for all internal circuitry and output drivers |
| SENSE | Voltage monitor input | Compares against 2.25 V internal reference; triggers reset when falling below threshold |
| CONTROL | Mode select input | Low = active-high RESET; high = active-low RESET (supports SRAM power-down logic) |
| RESIN | Manual reset input | Active-low asynchronous reset override (overrides SENSE/CONTROL logic) |
| RESET | Primary reset output | Active-high totem-pole driver; sinks 2 mA / sources 2 mA at VDD = 5 V |
| NC | No connect | Pin 7 is unconnected; must be left floating or tied to GND per layout guidelines |
| NC | No connect | Pin 8 is unconnected; no internal connection; avoid routing signals nearby |
Key Features
| Feature | Design Value |
|---|---|
| Power-on reset generator | Asserts RESET at VDD ≥1 V, ensuring CPU/MCU initialization before functional voltage is reached |
| Programmable delay time | External capacitor sets delay (td = 2.1 × 10⁴ × CT); eliminates need for external RC timing networks |
| Temperature-compensated reference | Stable 2.25 V threshold across –40°C to 125°C (±3% max drift), critical for thermal-cycling environments |
| Defined RESET from low VDD | Guaranteed RESET assertion even as VDD falls to 1 V, enabling graceful shutdown sequencing |
| Power-down control support | CONTROL pin enables direct interface to SRAM chip-select logic during main supply loss |
Applications
| Industrial PLC Power Monitoring | Automotive Body Control Module |
|---|---|
|
Use Scenario: Monitors 5 V microcontroller supply in programmable logic controller cabinets exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout detection with 2.25 V threshold aligned to 5 V rail tolerance. Use Value: Prevents erratic MCU behavior during line transients; 125°C rating ensures reliability in uncooled enclosures. |
Use Scenario: Supervises 3.3 V domain powering CAN transceivers and sensor interfaces in body control units. IC Role / Device Role / Timing Role: Generates clean, glitch-free reset pulse with programmable delay to coordinate firmware boot sequence. Use Value: 16 µA supply current extends battery drain time during sleep mode; Q-grade temp range matches automotive AEC-Q100 requirements. |
| Medical Imaging Power Sequencing | Energy Metering Data Logger |
|
Use Scenario: Controls power-up sequencing of FPGA and ADC subsystems in portable ultrasound equipment. IC Role / Device Role / Timing Role: Provides precise, repeatable reset timing via external capacitor to align FPGA configuration with analog front-end readiness. Use Value: Totem-pole output drives FPGA PROG_B directly; no external pull-up needed, reducing BOM count and board space. |
Use Scenario: Maintains SRAM data integrity during AC mains interruption in smart electricity meters. IC Role / Device Role / Timing Role: Uses CONTROL pin to assert active-high RESET and disable SRAM CS during main supply dropout. Use Value: Enables seamless switchover to backup battery without software intervention; hysteresis prevents false resets during marginal voltage recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB22DPWR | Lower quiescent current (350 nA), same 2.2 V threshold, open-drain RESET, SOT-23-5 package | Lacks CONTROL pin and programmable delay; no SRAM power-down support | Select for ultra-low-power battery applications where manual reset and delay programming are unnecessary |
| TPS3808G12QDBVRQ1 | Adjustable threshold (via resistor divider), 200 ms fixed delay, automotive AEC-Q100 qualified, same TSSOP-8 | Requires external resistors for threshold setting; no CONTROL pin for SRAM coordination | Select when design requires flexible threshold tuning and automotive qualification, but can omit SRAM control logic |
Compared with TLV803EB22DPWR and TPS3808G12QDBVRQ1, the TLC7725QPWR uniquely combines fixed-precision 2.25 V sensing, programmable delay, and dedicated SRAM power-down control in a single Q-grade TSSOP-8 device-making it optimal for deterministic reset sequencing in industrial and automotive embedded systems requiring battery-backed memory retention.
Availability
TLC7725QPWR is available at Aetrix Electronics and suitable for industrial PLC power monitoring, automotive body control modules, and medical imaging power sequencing requiring stable component supply, long-term lifecycle support, and guaranteed Q-grade temperature performance.
Supply support for TLC7725QPWR 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 communications markets.
The TLC77xx family was designed specifically for micropower supply voltage supervision in microcomputer and microprocessor systems-emphasizing precision threshold accuracy, ultra-low current consumption, and robust operation across extended temperature ranges.
FAQ
What is the exact sense threshold voltage of the TLC7725QPWR?
The TLC7725QPWR has a fixed negative-going input threshold voltage (VIT–) of 2.25 V, with typical tolerance of ±3% over the full operating temperature range (–40°C to 125°C). This value is factory-trimmed and specified in the Electrical Characteristics table of the SLVS087M datasheet under "Negative-going input threshold voltage, SENSE" for the TLC7725 variant.
Does the TLC7725QPWR support active-low RESET output?
Yes-the TLC7725QPWR supports both active-high and active-low RESET outputs depending on the CONTROL pin state. When CONTROL is pulled low, RESET is active-high; when CONTROL is pulled high, RESET is active-low. This dual-mode capability is confirmed in the Function Table and Application Information section of the SLVS087M datasheet.
How is the reset delay time calculated for the TLC7725QPWR?
The reset delay time (td) of the TLC7725QPWR is determined by an external capacitor CT connected to the CT pin: td = 2.1 × 10⁴ × CT, where CT is in farads and td is in seconds. For example, a 100 nF capacitor yields td ≈ 2.1 ms. This relationship is explicitly defined in the Functional Description and verified in the Switching Characteristics table.
What is the maximum supply current of the TLC7725QPWR?
The maximum supply current (IDD) of the TLC7725QPWR is 16 µA over the full operating temperature range (–40°C to 125°C) and supply voltage range (2 V to 6 V), as specified in the Electrical Characteristics table. During delay timing (td), current rises to 120–150 µA, but returns to ≤16 µA once delay completes.
Is the TLC7725QPWR pin-compatible with other TLC77xx variants in TSSOP-8?
Yes-the TLC7725QPWR shares identical pinout, package dimensions, and footprint with all other TLC77xx devices in the PW (TSSOP-8) package, including TLC7701QPWR, TLC7703QPWR, TLC7733QPWR, and TLC7705QPWR. Pin functions (VDD, GND, SENSE, CONTROL, RESIN, RESET, NC, NC) are consistent across the family per the DRB/PW package diagrams in the datasheet.
TLC7725QPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.25V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High/Active Low
- Reset Timeout:
- 1.1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLC7725QPWR FAQ
1.How can I place an order for TLC7725QPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC7725QPWR 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 TLC7725QPWR reliable?
The price and inventory of TLC7725QPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC7725QPWR is usually 5 days.
3.What payment methods are accepted for TLC7725QPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC7725QPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC7725QPWR?
TLC7725QPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC7725QPWR 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 TLC7725QPWR?
For technical support, including TLC7725QPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC7725QPWR requirements.
6.How does Aetrix verify that TLC7725QPWR is sourced from the original manufacturer or authorized distributors?
All TLC7725QPWR 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 TLC7725QPWR meets industry standards.
7.What is the process for return or replacement of TLC7725QPWR?
All TLC7725QPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC7725QPWR, 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 TLC7725QPWR part is unused and in its original packaging.
Return procedure for TLC7725QPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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