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Texas Instruments TLC7701IPW
- Part No.:
- TLC7701IPW
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC7701IPW.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:390
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Product details
Overview
TLC7701IPW from Texas Instruments is a micropower supply voltage supervisor IC designed for reset control in microcomputer and microprocessor systems. It features a 1.1 V precision sense threshold, programmable delay via external capacitor (td = 2.1 × 10⁴ × CT), defined RESET output down to VDD ≥ 1 V, 16 µA max supply current, and operates across –40°C to 85°C in TSSOP-8 packaging.
For engineers reviewing the TLC7701IPW datasheet, TLC7701IPW pinout, TLC7701IPW application, or TLC7701IPW equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in medical imaging and battery-backed memory retention, and validated alternative options with documented functional differences.
Technical Context
The TLC7701IPW implements a precision voltage monitor with temperature-compensated reference and internal power-on reset generator. Its SENSE input detects undervoltage conditions relative to a fixed 1.1 V threshold (VIT– = 1.04–1.16 V), while RESIN and CONTROL inputs enable active-low reset assertion and power-down control for static RAM with battery backup.
Reset assertion occurs when VDD reaches ≥1 V at power-up or when SENSE falls below threshold; recovery requires both SENSE > threshold and expiration of externally set delay time td. The device supports totem-pole outputs with VOH ≥ 3.7 V (at VDD = 4.5 V, IOH = –2 mA) and VOL ≤ 0.5 V (IOL = 2 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - supports wide-input industrial and portable systems without external regulation |
| Sense Threshold Voltage | 1.1 V (1.04–1.16 V) - fixed precision threshold enabling reliable low-voltage monitoring for 3.3 V/5 V rails |
| Max Supply Current | 16 µA - ultra-low quiescent current suitable for battery-critical applications |
| Delay Time Control | Programmable via external capacitor (td = 2.1 × 10⁴ × CT) - enables system-specific reset hold timing without firmware dependency |
| Operating Temperature | –40°C to 85°C - qualified for commercial and industrial ambient environments |
| Output Type | Active-high RESET and active-low RESET - dual complementary outputs simplify interface to diverse logic families |
| Reset Assertion Level | Defined RESET output from VDD ≥ 1 V - ensures early and deterministic reset initiation during brownout |
Pinout & Package
Package: TSSOP-8 (PW), 3.0 mm × 4.4 mm body, 0.65 mm pitch, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | Common return path for all internal circuitry and output drivers |
| 2 (SENSE) | Voltage monitor input | Compares applied voltage against 1.1 V internal threshold; triggers reset on undervoltage |
| 3 (RESIN) | Reset input control | Active-low manual reset override; forces RESET high when pulled low |
| 4 (CONTROL) | Power-down mode selector | Drives RAM chip select during power loss when tied to GND; enables battery-backed data retention |
| 5 (VDD) | Supply voltage input | Primary power rail (2–6 V); powers internal reference, comparator, and outputs |
| 6 (RESET) | Active-high reset output | Open-drain/totem-pole output asserted high during reset condition |
| 7 (RESET) | Active-low reset output | Complementary output asserted low during reset condition |
| 8 (NC) | No connect | Unbonded pin; must remain unconnected per TI design |
Key Features
| Feature | Design Value |
|---|---|
| Power-on reset generator | Asserts RESET at VDD ≥ 1 V - guarantees deterministic initialization before core logic becomes operational |
| Programmable delay time | Set by external CT (e.g., 100 nF → td ≈ 2.1 ms) - eliminates need for external timers or firmware delays |
| Temperature-compensated reference | Stable 1.1 V threshold over –40°C to 85°C - avoids calibration drift in varying thermal environments |
| Power-down control support | CONTROL input enables automatic RAM disable during power failure - preserves data integrity in battery-backed SRAM systems |
| Micropower operation | 16 µA max IDD - extends battery life in portable and remote sensing applications |
Applications
| Medical Imaging Power Sequencing | Battery-Backed Static RAM Retention |
|---|---|
|
Use Scenario: Ensuring safe power-up and brownout recovery in MRI or ultrasound front-end modules where sensor biasing and ADC sequencing must be strictly ordered. IC Role / Device Role / Timing Role: Voltage supervisor providing synchronized reset assertion and hold timing to prevent metastability in FPGA configuration and analog subsystems. Use Value: Prevents corrupted image acquisition by guaranteeing processor and sensor ICs initialize only after stable 3.3 V and 5 V rails are established. |
Use Scenario: Maintaining data integrity in patient-monitoring devices during AC power interruption, using coin-cell backup. IC Role / Device Role / Timing Role: Dual-output supervisor asserting RESET and controlling RAM chip select (CS) via CONTROL pin during voltage collapse. Use Value: Enables automatic RAM disable and clean reset upon main supply loss - no software intervention required, eliminating data corruption risk. |
| Industrial PLC I/O Module Reset | Low-Power IoT Edge Node Supervision |
|
Use Scenario: Reliable restart of programmable logic controller I/O expansion modules exposed to noisy 24 V DC field wiring. IC Role / Device Role / Timing Role: Monitoring local 5 V regulator output; generating extended reset pulse to ensure FPGA and isolated transceivers fully reinitialize. Use Value: Eliminates spurious resets from transient line noise by combining 70 mV hysteresis and user-programmable delay. |
Use Scenario: Long-life battery-powered environmental sensors transmitting data intermittently via LoRaWAN or NB-IoT. IC Role / Device Role / Timing Role: Micropower supervisor ensuring MCU reset on battery voltage sag below 2.4 V while consuming <16 µA continuously. Use Value: Extends 10-year battery life by minimizing quiescent current and avoiding unnecessary wake cycles due to false resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC7701IPWR | Same silicon, TSSOP-8 package, supplied in 2000-piece tape-and-reel (vs. 150-piece tube for TLC7701IPW) | Identical electrical behavior and pinout; optimized for automated SMT assembly | Select TLC7701IPWR for high-volume production; TLC7701IPW suits prototyping and low-quantity builds |
| TPS3808G12DBVR | Fixed 1.2 V threshold, 360 nA quiescent current, 200 ms factory-programmed delay, SOT-23-6 | Lacks CONTROL pin and dual RESET outputs; no manual reset (RESIN) or programmable delay | Choose TPS3808G12DBVR only if ultra-low IQ and fixed delay suffice; not drop-in for TLC7701IPW's RAM-control or capacitor-timed flexibility |
Compared with TLC7701IPW, TLC7701IPWR offers identical functionality in volume-friendly packaging, while TPS3808G12DBVR trades programmability and dual outputs for extreme low-power operation and smaller footprint - making it suitable only for simpler, non-RAM-retention use cases.
Availability
TLC7701IPW is available at Aetrix Electronics and suitable for medical imaging power sequencing, battery-backed static RAM retention, and industrial PLC I/O module reset requiring stable component supply and long-term lifecycle support.
Supply support for TLC7701IPW 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, precision, and energy efficiency.
The TLC77xx family was engineered specifically for robust, low-power supply monitoring in microcomputer systems - prioritizing early-reset assertion, programmable timing, and battery-backed memory control over general-purpose supervision.
FAQ
What is the exact sense threshold voltage of the TLC7701IPW?
The TLC7701IPW has a nominal sense threshold voltage of 1.1 V, with a guaranteed range of 1.04 V to 1.16 V across temperature and supply voltage. This fixed threshold is internally trimmed and temperature-compensated, eliminating the need for external resistor dividers unlike adjustable supervisors.
How does the CONTROL pin function in the TLC7701IPW?
In the TLC7701IPW, the CONTROL pin enables power-down control for static RAM with battery backup. When tied to GND, it configures RESET to act as active-high and activates logic that disables the memory chip select during power loss - a hardware-based feature that preserves data without CPU intervention.
Can the TLC7701IPW operate with a supply voltage below 2 V?
No - the TLC7701IPW is specified for recommended operation between 2 V and 6 V. Although RESET asserts at VDD ≥ 1 V, the device does not guarantee correct internal comparator or output behavior below 2 V, and electrical characteristics like VOH/VOL and threshold accuracy are not characterized in that region.
What is the maximum load the TLC7701IPW RESET outputs can drive?
The TLC7701IPW RESET outputs support up to 10 mA sink current (IOL) and ±10 mA source/sink (IOH/IOL) under absolute maximum ratings. For reliable operation, TI specifies 2 mA load at VOH ≥ 3.7 V (VDD = 4.5 V) and VOL ≤ 0.5 V - sufficient for driving standard CMOS inputs or small LED indicators.
Is the TLC7701IPW pin-compatible with other TLC77xx variants like TLC7703IPW?
No - while TLC7701IPW, TLC7703IPW, and other PW-package TLC77xx devices share identical TSSOP-8 pinouts and pin functions, their sense thresholds differ (1.1 V vs. 2.63 V). Swapping them without adjusting the monitored rail will cause incorrect reset behavior; they are functionally compatible only when threshold requirements match the application.
TLC7701IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.1V
- 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
TLC7701IPW FAQ
1.How can I place an order for TLC7701IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC7701IPW 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 TLC7701IPW reliable?
The price and inventory of TLC7701IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC7701IPW is usually 5 days.
3.What payment methods are accepted for TLC7701IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC7701IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC7701IPW?
TLC7701IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC7701IPW 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 TLC7701IPW?
For technical support, including TLC7701IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC7701IPW requirements.
6.How does Aetrix verify that TLC7701IPW is sourced from the original manufacturer or authorized distributors?
All TLC7701IPW 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 TLC7701IPW meets industry standards.
7.What is the process for return or replacement of TLC7701IPW?
All TLC7701IPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC7701IPW, 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 TLC7701IPW part is unused and in its original packaging.
Return procedure for TLC7701IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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