My Inquiry
My Account
Texas Instruments TLC7725IPW
- Part No.:
- TLC7725IPW
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC7725IPW.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:124
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC7725IPW from Texas Instruments is a micropower supply voltage supervisor IC with fixed 2.25 V sense threshold, active-low RESET output, programmable delay via external capacitor, 2–6 V supply range, and 16 µA max supply current-used for power-on reset and undervoltage monitoring in microprocessor systems.
For engineers reviewing the TLC7725IPW datasheet, TLC7725IPW pinout, TLC7725IPW application, or TLC7725IPW equivalent, this page delivers verified specifications, package mapping to TSSOP-8 (PW), functional context for battery-backed SRAM power-down control, and validated alternative options for industrial and medical embedded designs.
Technical Context
The TLC7725IPW implements a precision voltage sensor with temperature-compensated internal reference and hysteresis (70 mV) to prevent oscillation during threshold crossing. It asserts RESET when VDD ≥1 V at power-up and maintains assertion while SENSE voltage remains below 2.25 V.
Delay time (td = 2.1 × 10⁴ × CT) is externally set via capacitor on the CT pin; RESET deassertion occurs only after SENSE exceeds threshold and td expires. CONTROL input enables active-high RESET mode and supports static RAM chip-select disable during brownout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Threshold | 2.25 V ±0.07 V - fixed internal divider sets precise undervoltage detection point for 2.5 V rail monitoring. |
| Supply Range | 2 V to 6 V - supports operation across Li-ion, 3.3 V, and 5 V systems without external regulation. |
| Max Supply Current | 16 µA - enables use in always-on, battery-powered applications with multi-year runtime. |
| RESET Output Type | Active-low, totem-pole - drives standard CMOS inputs directly; no pull-up required. |
| Delay Time Range | 1.1 ms to 4.2 ms (with 100 nF CT) - provides configurable reset hold time compliant with processor startup timing. |
| Operating Temperature | –40°C to 85°C - qualified for commercial and industrial ambient environments. |
| Hysteresis | 70 mV - ensures clean, bounce-free reset release during slow-rising or noisy supply conditions. |
Pinout & Package
TLC7725IPW is housed in an 8-pin TSSOP (PW) package, 3.0 mm × 4.4 mm, 0.65 mm pitch, RoHS-compliant, with moisture sensitivity level (MSL) 1 and peak reflow rating of 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Power source for internal reference, comparator, and output driver; must be bypassed with 0.1 µF ceramic capacitor. |
| GND | Ground reference | Common return path for all internal circuitry and output load current. |
| SENSE | Voltage monitor input | Connects to monitored rail; internal comparator triggers RESET when voltage falls below 2.25 V. |
| CONTROL | Reset polarity select | Tied to GND for active-high RESET; tied to VDD for active-low RESET (default configuration). |
| RESIN | Manual reset input | Active-low asynchronous reset override; pulls RESET low when asserted, independent of SENSE state. |
| CT | Delay capacitor connection | External capacitor sets reset timeout duration (td = 2.1 × 10⁴ × CT); open or short disables delay. |
| RESET | Active-low reset output | Drives microcontroller /RESET pin; sinks up to 10 mA; defined output down to VDD ≥1 V. |
| RESET | Active-high reset output | Complementary to RESET; used for logic-level translation or dual-signaling systems. |
Key Features
| Feature | Design Value |
|---|---|
| Power-on reset generator | Asserts RESET at VDD ≥1 V - ensures reliable initialization before core logic becomes operational. |
| Programmable delay timer | External capacitor sets td from sub-millisecond to seconds - eliminates need for discrete RC networks or firmware timers. |
| Temperature-compensated reference | Stable 2.25 V threshold over –40°C to 85°C - avoids calibration drift in varying thermal environments. |
| Battery backup support | CONTROL-driven SRAM disable logic - preserves data integrity during main supply failure without external logic. |
| Micropower operation | 16 µA max IDD - reduces quiescent load on backup batteries in medical or IoT edge devices. |
Applications
| Medical Imaging Power Sequencing | Industrial PLC Controller Reset |
|---|---|
|
Use Scenario: Ensures clean power-up sequencing for FPGA-based image acquisition modules in portable ultrasound systems. IC Role / Device Role: Monitors 2.5 V analog front-end supply and asserts RESET until stable, preventing corrupted ADC initialization. Use Value: Eliminates firmware-based reset polling and guarantees hardware-enforced timing margin per IEC 62304 Class B requirements. |
Use Scenario: Provides fail-safe reset during AC line sags or DC bus transients in DIN-rail mounted programmable logic controllers. IC Role / Device Role: Supervises 3.3 V microcontroller supply and triggers controlled shutdown via CONTROL-linked watchdog enable. Use Value: Prevents spurious program execution during brownout, reducing field failures linked to memory corruption. |
| Smart Meter Battery Backup | Automotive Body Control Module |
|
Use Scenario: Maintains SRAM data retention during main power loss in ANSI C12.22-compliant electricity meters. IC Role / Device Role: Uses CONTROL input to gate SRAM chip-select when main 5 V rail drops, switching to coin-cell backup. Use Value: Enables >10-year data retention without external MOSFET or level-shifter, reducing BOM count by one component. |
Use Scenario: Monitors 5 V infotainment domain controller supply in 12 V automotive systems with wide input transients. IC Role / Device Role: Detects undervoltage on switched 5 V rail and holds MCU in reset until post-cranking stabilization. Use Value: Meets ISO 7637-2 pulse 4 immunity requirements by asserting RESET for ≥20 ms during load dump recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB22DBVR | Fixed 2.2 V threshold, 1.8–6 V supply, 0.9 µA typical IQ, SOT-23-5 package | Lacks CONTROL pin and RESET complement; no battery backup support | Select for ultra-low-power, space-constrained designs where dual reset outputs and SRAM control are unnecessary. |
| TPS3808G22DBVR | Adjustable threshold (via resistor divider), 1.8–6.5 V supply, 1.1 µA IQ, 200 ms fixed delay | No programmable delay; requires external resistors; no CONTROL-driven SRAM disable logic | Choose when threshold flexibility outweighs micropower advantage and when fixed 200 ms delay satisfies system timing. |
Compared with TLC7725IPW, TLV803EB22DBVR offers lower quiescent current but omits critical features for battery-backed memory systems, while TPS3808G22DBVR trades programmability and SRAM control for tighter threshold tolerance and simpler layout-neither is pin-compatible.
Availability
TLC7725IPW is available at Aetrix Electronics and suitable for medical imaging subsystems, industrial PLC controllers, smart meter battery backup circuits, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for TLC7725IPW 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 with emphasis on reliability, longevity, and industrial-grade qualification.
The TLC77xx family was designed specifically for micropower voltage supervision in safety-critical and battery-dependent systems-emphasizing precision threshold stability, low-IQ operation, and integrated power-down control for static RAM.
FAQ
What is the exact sense threshold voltage of the TLC7725IPW?
The TLC7725IPW has a fixed negative-going input threshold voltage (VIT–) of 2.25 V, with a typical tolerance of ±0.07 V over the full operating temperature range (–40°C to 85°C). This value is factory-trimmed and does not require external resistor programming, unlike the TLC7701 variant.
How is the reset delay time configured on the TLC7725IPW?
The reset delay time (td) on the TLC7725IPW is set by an external capacitor connected to the CT pin, using the formula td = 2.1 × 10⁴ × CT. For example, a 100 nF capacitor yields td ≈ 2.1 ms. The CT pin must be left open to disable delay functionality, and no series resistor is required.
Does the TLC7725IPW support active-high reset output without external inversion?
Yes-the TLC7725IPW provides both active-low RESET and active-high RESET outputs simultaneously. When CONTROL is tied to VDD, RESET is active-low and RESET is its logical complement. No external inverter or pull-up is needed to generate either signal polarity.
Can the TLC7725IPW be used to protect static RAM during main power loss?
Yes-the TLC7725IPW includes dedicated CONTROL logic for battery-backed SRAM applications. When CONTROL is driven by the microprocessor's memory bank select signal, the device automatically disables the SRAM chip-select (via RESET) during power failure, preserving data integrity without additional glue logic.
What is the maximum supply current specification for the TLC7725IPW?
The TLC7725IPW has a maximum supply current (IDD) of 16 µA under recommended operating conditions (VDD = 5 V, TA = 85°C). During the delay period (td), supply current rises to 120–150 µA, which is still compatible with most battery-backed systems due to its brief duration.
TLC7725IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLC7725IPW FAQ
1.How can I place an order for TLC7725IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC7725IPW 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 TLC7725IPW reliable?
The price and inventory of TLC7725IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC7725IPW is usually 5 days.
3.What payment methods are accepted for TLC7725IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC7725IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC7725IPW?
TLC7725IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC7725IPW 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 TLC7725IPW?
For technical support, including TLC7725IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC7725IPW requirements.
6.How does Aetrix verify that TLC7725IPW is sourced from the original manufacturer or authorized distributors?
All TLC7725IPW 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 TLC7725IPW meets industry standards.
7.What is the process for return or replacement of TLC7725IPW?
All TLC7725IPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC7725IPW, 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 TLC7725IPW part is unused and in its original packaging.
Return procedure for TLC7725IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC7725IPW 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…
