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Texas Instruments TLC7701MDREP
- Part No.:
- TLC7701MDREP
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC7701MDREP.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:634
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Product details
Overview
TLC7701MDREP from Texas Instruments is a micropower supply voltage supervisor IC designed for precision reset control in microcomputer and microprocessor systems. It features a programmable delay time via external capacitor, 1.1 V power-up reset threshold, 1.04–1.16 V SENSE threshold with 30 mV hysteresis, and operates across –55°C to 125°C. It supports static RAM power-down control in battery-backed memory systems.
For engineers reviewing the TLC7701MDREP datasheet, TLC7701MDREP pinout, TLC7701MDREP application, or TLC7701MDREP equivalent, key selection factors include its extended temperature range (–55°C to 125°C), SOIC-8 package, dual active-high/active-low RESET outputs, and resistor-programmable threshold configuration-critical for high-reliability aerospace, defense, and medical power monitoring designs.
Technical Context
The TLC7701MDREP implements a precision voltage-sensing comparator with temperature-compensated internal reference and an internal timer for controlled reset assertion. Its SENSE input monitors system supply or rail voltage, while RESIN and CONTROL inputs enable flexible reset logic control-including active-high RESET output when CONTROL is grounded.
Unlike fixed-threshold variants (TLC7705/TLC7733), the TLC7701MDREP uses two external resistors (R1/R2) to set its VIT− threshold, enabling custom undervoltage detection points. Its totem-pole outputs eliminate need for external pull resistors, and it guarantees defined RESET behavior down to VDD ≥ 1 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - supports wide-input industrial and avionics rails without external regulation |
| Power-Up Reset Threshold | 1 V - ensures reliable reset assertion during slow or noisy power ramp-up |
| SENSE Threshold (VIT−) | 1.04–1.16 V - factory-trimmed precision window enables accurate low-voltage monitoring |
| Hysteresis (Vhys) | 30 mV - prevents chatter near threshold during marginal supply conditions |
| Supply Current (IDD) | 9–16 µA - ultra-low quiescent current extends battery life in always-on monitoring |
| Operating Temperature | –55°C to 125°C - qualified for extended military and space-grade thermal environments |
| Delay Time (td) | Programmable via CT - td = 2.1×10⁴ × CT seconds enables precise reset hold timing |
Pinout & Package
Package: SOIC-8 (D package), 3.91 mm × 4.9 mm body, 1.75 mm max height, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESIN | Reset Input Enable | Active-low input that disables internal reset generation when pulled low; allows external override of reset logic |
| 2 - CONTROL | Output Polarity Control | When grounded, forces RESET output active-high; enables compatibility with memory CS control logic |
| 3 - SENSE | Voltage Monitoring Input | Primary analog input for undervoltage detection; threshold set by R1/R2 divider per TLC7701 architecture |
| 4 - GND | Ground Reference | Analog and digital ground return; must be low-impedance for stable threshold accuracy |
| 5 - VDD | Supply Input | Power source for internal circuitry; powers both supervisor core and totem-pole outputs |
| 6 - CT | Timing Capacitor Connection | Connects external capacitor to set reset delay time (td); no internal pull; requires ceramic bypass |
| 7 - RESET | Active-Low Reset Output | Open-drain/totem-pole configurable output; asserts low during undervoltage or power-on condition |
| 8 - RESET | Active-High Reset Output | Complementary to pin 7; provides simultaneous active-high signaling without external inverter |
Key Features
| Feature | Design Value |
|---|---|
| Resistor-Programmable Threshold | Enables custom VIT− setting using external R1/R2 network-unlike fixed-threshold TLC7705/TLC7733 variants |
| Extended Temperature Range | –55°C to 125°C operation certified per V62/04604-04YE spec-suitable for space-grade and defense platforms |
| Dual Complementary RESET Outputs | Simultaneous active-high and active-low signals eliminate need for external inverters in mixed-logic systems |
| Power-Down Memory Control | CONTROL pin logic allows direct interfacing with static RAM chip select (CS) during brownout for data retention |
| Defined RESET at Low VDD | Guaranteed RESET assertion down to VDD ≥ 1 V-critical for systems with backup battery switchover |
Applications
| Aerospace Power Sequencing | Defense System Watchdog |
|---|---|
Use Scenario: Monitoring primary and backup power rails in satellite command & data handling units during launch and orbit insertion. IC Role / Device Role / Timing Role: Supervisor IC providing power-on reset and undervoltage lockout with guaranteed operation at –55°C and 125°C. Use Value: Prevents processor boot under marginal voltage by asserting RESET until VDD stabilizes above 1.1 V, ensuring deterministic startup. | Use Scenario: Enabling fail-safe shutdown in radar transceiver modules during rapid thermal cycling or EMI-induced supply sag. IC Role / Device Role / Timing Role: Precision voltage monitor triggering hardware reset before FPGA configuration corruption occurs. Use Value: 30 mV hysteresis eliminates false resets during transient dips, while 9 µA IDD minimizes standby drain on tactical battery packs. |
| Medical Imaging Power Integrity | Battery-Backed Data Logger |
Use Scenario: Supervising DC-DC converter outputs powering X-ray detector ASICs in portable ultrasound systems. IC Role / Device Role / Timing Role: Dual-output supervisor coordinating reset sequencing between analog front-end and digital processing subsystems. Use Value: Simultaneous RESET and RESET outputs synchronize power-up of mixed-signal blocks without additional logic gates. | Use Scenario: Maintaining SRAM data integrity during main power loss in environmental sensor nodes deployed in remote locations. IC Role / Device Role / Timing Role: Power-down controller using CONTROL pin to gate memory CS during brownout, backed by coin-cell supply. Use Value: Automatic disable of SRAM access when VDD drops below 1.1 V, preserving stored calibration data for >10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC7705QPWREP | Fixed 4.5 V SENSE threshold; TSSOP-8; –40°C to 125°C rating | Designed for 5 V system monitoring-not adjustable; lacks resistor-programmable flexibility | Select when fixed 4.5 V threshold suffices and TSSOP footprint is preferred over SOIC |
| TPS3808G12DBVR | 1.2 V fixed threshold; 360 nA IQ; SOT-23-6; –40°C to 125°C | Ultra-low-power alternative with no dual RESET outputs or CONTROL pin functionality | Select only for space-constrained, battery-critical apps where dual outputs and memory control are unnecessary |
Compared with TLC7701MDREP, TLC7705QPWREP offers simpler integration for standard 5 V rails but sacrifices threshold customization and extended temperature capability; TPS3808G12DBVR reduces supply current by >250× but removes critical features like dual outputs and battery-backed memory control-making TLC7701MDREP uniquely suited for high-reliability, multi-rail, extended-temp embedded supervision.
Availability
TLC7701MDREP is available at Aetrix Electronics and suitable for aerospace power sequencing, defense system watchdogs, and medical imaging power integrity applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLC7701MDREP 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, with leadership in high-reliability analog ICs for mission-critical systems.
The TLC77xx-EP product line was engineered specifically for defense, aerospace, and medical applications-featuring controlled baseline, extended temperature qualification, and enhanced traceability for programs demanding long-term supply stability and zero-defect reliability.
FAQ
What is the SENSE threshold voltage range for TLC7701MDREP?
The TLC7701MDREP has a nominal SENSE threshold (VIT−) of 1.1 V, with a guaranteed range of 1.04 V to 1.16 V across –55°C to 125°C. Unlike fixed-threshold variants, this value is set externally using two resistors (R1/R2) per the datasheet configuration-enabling precise customization for non-standard supply rails. The TLC7701MDREP's 30 mV hysteresis further ensures noise immunity during threshold crossing.
Does TLC7701MDREP support battery-backed static RAM power-down control?
Yes, the TLC7701MDREP supports battery-backed static RAM power-down control via its CONTROL pin. When CONTROL is tied to GND, the RESET output becomes active-high-allowing direct connection to the chip select (CS) input of CMOS RAM. This feature ensures automatic memory disable during main supply failure, preserving data integrity when powered from a backup battery, as validated in TI's Figure 11 application circuit.
What package type and dimensions does TLC7701MDREP use?
TLC7701MDREP uses the SOIC-8 (D) package: 3.91 mm × 4.9 mm body size, 1.75 mm maximum height, with 1.27 mm lead pitch. It is RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH). The device marking is "7701ME", and it ships in large tape-and-reel format (2500 units per reel).
How is the reset delay time programmed on TLC7701MDREP?
The reset delay time (td) on TLC7701MDREP is programmed externally using a capacitor connected to the CT pin (pin 6). The relationship is td = 2.1 × 10⁴ × CT seconds, where CT is in farads. For example, a 100 nF capacitor yields ~2.1 ms delay. The datasheet specifies use of ceramic capacitors and notes that timing remains stable across temperature-critical for deterministic reset hold in avionics and defense systems.
Is TLC7701MDREP qualified for extended temperature operation?
Yes, TLC7701MDREP is fully qualified for extended temperature operation from –55°C to 125°C, per its V62/04604-04YE military-grade specification. This includes screening, testing, and process controls aligned with Texas Instruments' enhanced plastic packaging standards for defense and aerospace applications-verified through thermal cycling, burn-in, and long-term reliability testing per MIL-STD-883 methods.
TLC7701MDREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC7701MDREP FAQ
1.How can I place an order for TLC7701MDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC7701MDREP 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 TLC7701MDREP reliable?
The price and inventory of TLC7701MDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC7701MDREP is usually 5 days.
3.What payment methods are accepted for TLC7701MDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC7701MDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC7701MDREP?
TLC7701MDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC7701MDREP 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 TLC7701MDREP?
For technical support, including TLC7701MDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC7701MDREP requirements.
6.How does Aetrix verify that TLC7701MDREP is sourced from the original manufacturer or authorized distributors?
All TLC7701MDREP 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 TLC7701MDREP meets industry standards.
7.What is the process for return or replacement of TLC7701MDREP?
All TLC7701MDREP units undergo pre-shipment inspection (PSI). If there is an issue with TLC7701MDREP, 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 TLC7701MDREP part is unused and in its original packaging.
Return procedure for TLC7701MDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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