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Texas Instruments TL7712ACDRG4
- Part No.:
- TL7712ACDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL7712ACDRG4.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,656
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Product details
Overview
TL7712ACDRG4 from Texas Instruments is a precision supply-voltage supervisor IC designed for reset control in 12-V microprocessor and memory systems. It features a nominal 10.8-V threshold voltage (VIT+), ±35-mV hysteresis, 0.65–2.6-ms externally adjustable reset pulse duration via CT capacitor, and operates across 3.5 V to 18 V supply range. Its dual active-high/active-low open-collector RESET outputs ensure reliable initialization of logic circuits during power-up and brownout events.
For engineers reviewing the TL7712ACDRG4 datasheet, TL7712ACDRG4 pinout, TL7712ACDRG4 application, or TL7712ACDRG4 equivalent, key selection criteria include its fixed 10.8-V sensing threshold, SOIC-8 package compatibility, temperature-stable reference (±16 mV over –40°C to +85°C), and requirement for external timing capacitor (CT) to set reset timeout - critical for deterministic system boot sequencing in industrial and embedded controllers.
Technical Context
The TL7712ACDRG4 implements a precision bandgap-referenced comparator with temperature-compensated trip point and integrated delay timer. Its SENSE input monitors external supply rails, triggering RESET assertion when voltage falls below 10.6 V (min) and releasing only after crossing 10.95 V (typ, VIT+ + Vhys) with built-in hysteresis to prevent chatter.
Reset pulse width is programmable via external capacitor CT (e.g., 0.1 µF yields 1.3 ms), governed by td = 1.3 × 10⁴ × CT. The REF output provides a stable 2.53 V (typ) reference usable for auxiliary biasing, while both RESET and RESET outputs drive open-collector loads requiring external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIT+ Threshold | 10.6 V (min) to 11.0 V (max) - ensures reliable detection of 12-V rail undervoltage before system malfunction |
| Hysteresis | 35 mV (typ) - prevents oscillatory reset toggling near threshold during slow-ramp or noisy supply conditions |
| Supply Range | 3.5 V to 18 V - supports operation across wide input rails including 5 V, 12 V, and 15 V systems |
| REF Output | 2.48–2.58 V (25°C) - stable internal reference usable for external circuit biasing or calibration |
| Reset Pulse Width | 0.65–2.6 ms (CT = 0.1 µF) - programmable delay guarantees sufficient time for CPU core and peripherals to stabilize |
| Operating Temp | 0°C to +70°C - rated for commercial-temperature industrial and computing applications |
| Output Type | Open-collector RESET and RESET - enables wired-OR configuration and flexible logic-level interfacing |
Pinout & Package
TL7712ACDRG4 is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, optimized for surface-mount assembly and thermal performance (RθJA = 97°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF (Pin 1) | Voltage reference output | Provides 2.53 V (typ) low-drift reference for external use; requires 0.1-µF bypass capacitor to GND |
| RESIN (Pin 2) | Manual reset input | Active-low asynchronous reset trigger; pulls RESET/RESET active when driven ≤0.6 V |
| CT (Pin 3) | Timing capacitor connection | Sets reset pulse duration (td = 1.3×10⁴×CT); 0.1 µF yields ~1.3 ms delay |
| GND (Pin 4) | Ground reference | Common return for all internal circuitry and external capacitors (REF, CT, VCC) |
| RESET (Pin 5) | Inverted reset output | Active-low open-collector output; requires external pull-up for logic HIGH during normal operation |
| RESET (Pin 6) | Non-inverted reset output | Active-high open-collector output; requires external pull-up for logic HIGH during reset assertion |
| SENSE (Pin 7) | Supply monitoring input | Monitors external rail voltage; asserts reset when falling below 10.6 V (min) with 35-mV hysteresis |
| VCC (Pin 8) | Power supply input | Primary device supply; must be ≥3.5 V for functional operation; max rating 20 V (absolute) |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 10.8-V threshold | Optimized for 12-V systems - eliminates need for external resistor divider while ensuring margin against rail tolerance |
| Externally adjustable reset timeout | Capacitor-programmable delay (0.65–2.6 ms) enables precise alignment with processor reset timing requirements |
| Temperature-compensated reference | Reference drift ≤16 mV from –40°C to +85°C - maintains threshold accuracy across environmental extremes |
| Dual complementary reset outputs | Simultaneous active-high and active-low signals simplify interface to diverse logic families (TTL, CMOS, microcontrollers) |
| Wide supply range support | Operates from 3.5 V to 18 V - allows single supervisor IC to serve multiple rail domains in multi-voltage systems |
Applications
| Industrial PLC Controllers | Embedded Network Routers |
|---|---|
|
Use Scenario: Power sequencing in DIN-rail mounted programmable logic controllers with 12-V DC input and mixed 3.3-V/5-V logic rails. IC Role / Device Role / Timing Role: Primary undervoltage detector and reset generator for ARM-based controller and FPGA configuration logic. Use Value: Prevents corrupted firmware execution by holding reset until 12-V rail stabilizes above 10.6 V and sustains >1.3 ms post-threshold. |
Use Scenario: Reliable boot initialization in fanless enterprise routers using 12-V PoE-derived power with isolated DC-DC converters. IC Role / Device Role / Timing Role: System-level reset coordinator asserting synchronized reset to CPU, switch fabric, and PHY controllers. Use Value: Eliminates race conditions during cold start by guaranteeing minimum 1.3-ms reset pulse width regardless of input ramp rate. |
| Automotive Infotainment Head Units | Test & Measurement Equipment |
|
Use Scenario: Cold-cranking resilience in 12-V automotive head units where battery voltage dips to 6–8 V during engine start. IC Role / Device Role / Timing Role: Brownout detector that reasserts reset if sensed 12-V rail drops below 10.6 V during operation. Use Value: Maintains system integrity by forcing controlled reboot instead of undefined state when supply recovers from dip. |
Use Scenario: Power-on reset for benchtop oscilloscopes and signal generators with precision analog front-ends powered from regulated 12-V supplies. IC Role / Device Role / Timing Role: Supervisor for FPGA-based acquisition logic and DAC/ADC sequencers requiring deterministic startup. Use Value: Ensures analog subsystems are fully biased and settled before digital control logic begins sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supply-voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL7712ACD | Same electrical specs and pinout; differs only in packaging (tube vs. tape-and-reel) and marking (7712AC vs. 7712ACG4) | Identical functional behavior; selected for manual prototyping or low-volume hand-soldered builds | Choose TL7712ACD for lab evaluation or small-batch assembly where reel packaging is unnecessary |
| TPS3808G12 | Adjustable threshold (via resistor divider), lower quiescent current (1.8 µA vs. 3 mA), fixed 200-ms reset timeout, no REF output | Better suited for ultra-low-power battery-backed systems; lacks programmable delay and reference output | Prefer TPS3808G12 when minimizing supply current is critical and fixed 200-ms reset suffices |
Compared with TL7712ACD, TL7712ACDRG4 offers identical supervision functionality in tape-and-reel format for automated SMT lines, while TPS3808G12 trades programmability and reference capability for nanoamp-level quiescent current - making it suitable only where power budget dominates timing flexibility.
Availability
TL7712ACDRG4 is available at Aetrix Electronics and suitable for industrial automation, embedded networking, and test equipment requiring stable component supply with guaranteed long-term manufacturability and RoHS-compliant sourcing.
Supply support for TL7712ACDRG4 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 and embedded processing solutions, with over 90 years of innovation in power management, signal chain, and microcontroller technologies.
The TL77xxA family was engineered specifically as cost-effective, robust reset supervisors for microcomputer and microprocessor systems - emphasizing precision threshold accuracy, hysteresis stability, and ease of integration in 12-V and higher-rail applications.
FAQ
What is the exact threshold voltage range for TL7712ACDRG4?
The TL7712ACDRG4 has a guaranteed negative-going input threshold voltage (VIT−) of 10.6 V (min) to 11.0 V (max) at 25°C, with 35 mV typical hysteresis. This ensures consistent detection of 12-V rail collapse while avoiding false triggers from noise or slow transients. The full specification is validated per TI's SLVS028K datasheet Section 6.5.
Does TL7712ACDRG4 require external components to function?
Yes, TL7712ACDRG4 requires three external components: a 0.1-µF capacitor on REF to ground for reference stability, a timing capacitor (CT) on Pin 3 to set reset pulse width, and pull-up resistors on both RESET and RESET outputs due to their open-collector architecture. These are mandatory per TI's recommended operating conditions and layout guidelines.
Can TL7712ACDRG4 monitor voltages other than 12 V?
No - TL7712ACDRG4 is factory-trimmed for a nominal 10.8-V threshold and is not adjustable. For non-12-V rails, TI specifies other members of the family: TL7705A (4.55 V), TL7709A (7.6 V), TL7715A (13.5 V). Using TL7712ACDRG4 on lower rails risks failure to assert reset; on higher rails may cause premature assertion.
What is the maximum supply voltage rating for TL7712ACDRG4?
The absolute maximum supply voltage (VCC) for TL7712ACDRG4 is 20 V, but recommended operation is limited to 3.5 V–18 V per Section 6.3 of the datasheet. Exceeding 18 V risks violating recommended conditions; sustained operation above 20 V causes permanent damage, as stated in Absolute Maximum Ratings.
Is TL7712ACDRG4 compatible with lead-free reflow processes?
Yes, TL7712ACDRG4 is RoHS-compliant with NIPDAU lead finish and rated for Level-1 moisture sensitivity (MSL-1) with unlimited floor life at ≤30°C/85% RH. Its peak reflow profile supports standard lead-free soldering up to 260°C, as documented in TI's PACKAGE OPTION ADDENDUM.
TL7712ACDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 10.8V
- Output:
- Open Drain or Open Collector
- Reset:
- Active High/Active Low
- Reset Timeout:
- 1µs Maximum Propagation Delay
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL7712ACDRG4 FAQ
1.How can I place an order for TL7712ACDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL7712ACDRG4 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 TL7712ACDRG4 reliable?
The price and inventory of TL7712ACDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL7712ACDRG4 is usually 5 days.
3.What payment methods are accepted for TL7712ACDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL7712ACDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL7712ACDRG4?
TL7712ACDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL7712ACDRG4 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 TL7712ACDRG4?
For technical support, including TL7712ACDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL7712ACDRG4 requirements.
6.How does Aetrix verify that TL7712ACDRG4 is sourced from the original manufacturer or authorized distributors?
All TL7712ACDRG4 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 TL7712ACDRG4 meets industry standards.
7.What is the process for return or replacement of TL7712ACDRG4?
All TL7712ACDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL7712ACDRG4, 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 TL7712ACDRG4 part is unused and in its original packaging.
Return procedure for TL7712ACDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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