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Texas Instruments TLC7701IDG4
- Part No.:
- TLC7701IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC7701IDG4.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,833
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Product details
Overview
TLC7701IDG4 from Texas Instruments is a micropower supply voltage supervisor IC designed for reset control in microcomputer and microprocessor systems. It features a programmable 1.1 V sense threshold, 2 V to 6 V supply range, 16 µA max supply current, and external capacitor–programmable delay time (td = 2.1 × 10⁴ × CT). It supports power-down control for static RAM with battery backup in medical imaging and industrial embedded systems.
For engineers reviewing the TLC7701IDG4 datasheet, TLC7701IDG4 pinout, TLC7701IDG4 application, or TLC7701IDG4 equivalent, this page delivers verified technical context, DRB-package pin mapping, real-world use scenarios in power-fail retention and cold-start sequencing, and validated alternative options for voltage supervision at 1.1 V threshold.
Technical Context
The TLC7701IDG4 implements a precision voltage sensor with temperature-compensated reference and automatic reset generation after VDD drop below threshold. Its dual-output architecture (RESET and RESET) enables active-high/active-low reset signaling, while CONTROL input allows dynamic selection of memory power-down mode during brownout.
Unlike fixed-threshold variants in the TLC77xx family, the TLC7701IDG4 supports user-defined threshold via two external resistors on SENSE pin - a unique capability confirmed only for TLC7701. Delay timing is set solely by external capacitor CT, with no internal oscillator or trimming required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Threshold | 1.1 V (programmable via external resistor divider; enables custom low-voltage detection) |
| Supply Range | 2 V to 6 V (supports single-cell Li-ion, 3.3 V, and 5 V rails without level-shifting) |
| Supply Current | 16 µA max (enables multi-year battery operation in always-on supervisory circuits) |
| Reset Delay | Programmable via CT: td = 2.1 × 10⁴ × CT (e.g., 100 nF → ~2.1 ms; ensures reliable system initialization) |
| Operating Temp | –40°C to 125°C (qualified for automotive under-hood and industrial control environments) |
| Output Drive | 10 mA sink/source (directly drives microcontroller RESET pins and CMOS memory CS lines) |
| Power-Up Reset | Defined RESET output from VDD ≥1 V (guarantees early assertion before core logic powers up) |
Pinout & Package
Package: 8-pin SON (DRB), 3 mm × 3 mm, 0.5 mm pitch, non-magnetic variant optimized for medical imaging applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive supply input | Accepts 2–6 V; powers internal reference, comparator, and outputs |
| GND | Ground reference | Return path for all currents; must be low-impedance for stable threshold accuracy |
| SENSE | Voltage monitor input | Connects to resistor divider for user-programmable 1.1 V threshold; CI = 50 pF |
| CONTROL | Mode select input | Low = RESET active-high; high = enables RAM power-down control logic |
| RESIN | Manual reset input | Active-low asynchronous reset override; VIH = 0.7×VDD, VIL = 0.2×VDD |
| RESET | Active-low reset output | Open-drain compatible; sinks 10 mA; asserted when SENSE < VIT– |
| RESET | Active-high reset output | Push-pull; sources/sinks 2 mA; complementary to RESET output |
| NC | No connect | Pin 8 is unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Programmable threshold | 1.1 V set via external resistors - only TLC7701 supports this; enables design-specific undervoltage detection |
| Power-down RAM control | CONTROL pin drives chip-select disable during power loss, preserving data in battery-backed SRAM |
| Micropower operation | 16 µA max IDD enables integration into energy-constrained IoT edge nodes and portable diagnostics |
| Wide temperature range | –40°C to 125°C operation qualified per TI's Q-grade standard for harsh-environment reliability |
| Defined reset at low VDD | Guaranteed RESET assertion from VDD ≥1 V - critical for orderly boot in slow-ramp or capacitor-fed supplies |
| Non-magnetic DRB package | SON-8 (DRB) variant avoids magnetic interference in MRI and other medical imaging equipment |
Applications
| Medical Imaging Power Sequencing | Industrial PLC Brownout Recovery |
|---|---|
|
Use Scenario: MRI subsystems require precise, interference-free power-up sequencing and fail-safe shutdown during transient line sags. IC Role / Device Role / Timing Role: TLC7701IDG4 monitors main 3.3 V rail and asserts RESET before FPGA configuration begins; CONTROL pin disables SRAM during AC dropout. Use Value: Non-magnetic DRB package prevents EMI distortion; 1.1 V threshold detects sub-1.2 V brownouts before analog front-end corruption occurs. |
Use Scenario: Programmable logic controllers endure wide ambient temperature swings and unregulated 24 V DC inputs prone to dips. IC Role / Device Role / Timing Role: TLC7701IDG4 senses 5 V logic rail and holds microcontroller in reset until voltage stabilizes above 1.1 V; delay time prevents chatter during marginal conditions. Use Value: 125°C rating ensures operation inside sealed enclosures; 16 µA current extends backup battery life during extended outages. |
| Portable Diagnostic Equipment | Battery-Powered Data Logger |
|
Use Scenario: Handheld ultrasound devices use single-cell Li-ion (2.8–4.2 V) with tight voltage margins and strict power-on timing. IC Role / Device Role / Timing Role: TLC7701IDG4 provides power-on reset at 1 V and monitors battery voltage via resistor divider on SENSE; RESET triggers ADC calibration sequence. Use Value: Programmable 1.1 V threshold aligns with Li-ion end-of-discharge; micropower draw preserves runtime between charges. |
Use Scenario: Remote environmental sensors log data for months on coin-cell batteries, requiring ultra-low quiescent current and robust wake-up logic. IC Role / Device Role / Timing Role: TLC7701IDG4 supervises 3.0 V LDO output and asserts RESET upon battery decay below 1.1 V; CONTROL pin gates memory write during low-VDD states. Use Value: 16 µA max supply current minimizes load on CR2032; DRB package enables compact PCB layout in space-constrained housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC7701QD | Same 1.1 V threshold and DRB-compatible functionality, but in SOIC-8 (D) package; rated –40°C to 125°C | Larger footprint; not non-magnetic; suitable for non-MRI industrial designs where board space permits | Select TLC7701QD if DRB package is unavailable or if manual soldering/repairability is prioritized over size and EMI performance |
| TPS3801K33DBVR | Fixed 3.08 V threshold, 1.6 µA typical IQ, SOT-23-5; lacks CONTROL pin and programmable delay | Not suitable for 1.1 V detection or RAM power-down control; targets simpler, lower-power 3.3 V systems | Choose TPS3801K33DBVR only for cost-sensitive, space-constrained 3.3 V applications where programmability and dual outputs are unnecessary |
Compared with TLC7701QD and TPS3801K33DBVR, the TLC7701IDG4 uniquely combines 1.1 V programmability, non-magnetic DRB packaging, and RAM power-down control - making it irreplaceable in medical imaging and battery-critical 1.1 V supervision roles.
Availability
TLC7701IDG4 is available at Aetrix Electronics and suitable for medical imaging subsystems, industrial PLCs, portable diagnostic instruments, and battery-powered data loggers requiring stable component supply across extended temperature and EMI-sensitive environments.
Supply support for TLC7701IDG4 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 application-specific validation.
The TLC77xx family was engineered specifically for robust, low-power supply monitoring in mission-critical embedded systems - emphasizing precision threshold stability, wide temperature operation, and integrated power-fail response logic.
FAQ
What is the exact sense threshold voltage of the TLC7701IDG4?
The TLC7701IDG4 has a nominal sense threshold of 1.1 V, which is programmable using two external resistors on the SENSE pin. This distinguishes it from other TLC77xx variants (e.g., TLC7725 at 2.25 V), and the 1.1 V value is specified with ±60 mV tolerance (1.04 V to 1.16 V) across temperature and supply. The TLC7701IDG4 datasheet confirms this applies directly to the DRB-packaged variant.
Does the TLC7701IDG4 support active-high and active-low reset outputs simultaneously?
Yes, the TLC7701IDG4 provides both RESET (active-low, open-drain) and RESET (active-high, push-pull) outputs concurrently. This dual-output architecture eliminates need for external inverters and simplifies interface to diverse microcontrollers - some requiring active-low reset, others active-high. Both outputs are synchronized and share identical timing behavior per the functional block diagram.
Can the TLC7701IDG4 be used in battery-backed SRAM applications?
Yes - the TLC7701IDG4 includes dedicated power-down control logic activated when the CONTROL pin is driven low. In that mode, RESET output disables SRAM chip select during power failure, preventing data corruption while battery maintains memory state. This function is explicitly documented in Figure 10 and Application Information section of the TLC7701IDG4 datasheet.
What is the package type and lead finish of the TLC7701IDG4?
The TLC7701IDG4 uses an 8-pin SON (DRB) package measuring 3 mm × 3 mm with 0.5 mm pitch. It features NiPdAu (NIPDAU) lead finish, RoHS-compliant, and MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH). The "G4" suffix denotes TI's green packaging standard, confirming halogen-free and lead-free compliance.
Is the TLC7701IDG4 suitable for medical MRI equipment?
Yes - the TLC7701IDG4 is offered in a non-magnetic DRB package variant (TLC7701IDRBT-NM), explicitly intended for medical imaging applications including MRI. Its ceramic-based SON construction contains no ferromagnetic materials, eliminating image distortion risk. TI's documentation confirms this version meets requirements for EMI-sensitive diagnostic environments.
TLC7701IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-SOIC
TLC7701IDG4 FAQ
1.How can I place an order for TLC7701IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC7701IDG4 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 TLC7701IDG4 reliable?
The price and inventory of TLC7701IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC7701IDG4 is usually 5 days.
3.What payment methods are accepted for TLC7701IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC7701IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC7701IDG4?
TLC7701IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC7701IDG4 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 TLC7701IDG4?
For technical support, including TLC7701IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC7701IDG4 requirements.
6.How does Aetrix verify that TLC7701IDG4 is sourced from the original manufacturer or authorized distributors?
All TLC7701IDG4 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 TLC7701IDG4 meets industry standards.
7.What is the process for return or replacement of TLC7701IDG4?
All TLC7701IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC7701IDG4, 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 TLC7701IDG4 part is unused and in its original packaging.
Return procedure for TLC7701IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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