Texas Instruments TL7712AIP

Overview

TL7712AIP from Texas Instruments is a precision supply-voltage supervisor IC designed for reset control in 12-V microprocessor and memory systems. It features a 10.8 V ±0.2 V threshold voltage (V_IT−), 35 mV hysteresis, externally adjustable reset pulse duration via CT pin, temperature-compensated 2.53 V reference output, and operates across 3.5 V to 18 V supply range.

For engineers reviewing the TL7712AIP datasheet, TL7712AIP pinout, TL7712AIP application, or TL7712AIP equivalent, this device serves as a dedicated undervoltage detection and power-on reset generator with dual active-high/active-low open-collector outputs, requiring no external biasing for basic reset assertion in industrial and embedded 12-V logic systems.

Technical Context

The TL7712AIP implements a precision comparator-based sensing architecture with internal trimmed voltage reference and delay timer controlled by an external capacitor on the CT pin. Its SENSE input monitors system supply voltage, triggering RESET and RESET outputs when voltage falls below 10.6 V (min) or rises above 11.0 V (max) - with 35 mV hysteresis ensuring noise immunity during threshold transitions.

It delivers dual complementary reset signals: RESET (active-low) and RESET (active-high), both open-collector, enabling flexible interface with TTL, CMOS, or microcontroller reset inputs. The REF pin provides a stable 2.48–2.58 V reference usable for external circuitry, and the device guarantees operation from –40°C to +85°C in PDIP-8 package.

Key Specifications

Pinout & Package

TL7712AIP is housed in an 8-pin PDIP (Plastic Dual In-line Package) with 9.81 mm × 6.35 mm body size and through-hole mounting. Pin spacing is 2.54 mm, compatible with standard 0.3-inch DIP footprints.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar supply-voltage supervisor applications.

Compared with TPS3808G12DBVR and MAX6805US29D3+, the TL7712AIP offers unique value in legacy 12-V systems requiring field-adjustable reset timing, a buffered reference output, and dual open-collector reset signals - features absent in modern low-power alternatives.

Availability

TL7712AIP is available at Aetrix Electronics and suitable for industrial automation, embedded memory systems, automotive body electronics, and legacy instrumentation requiring stable component supply with long-term manufacturability.

Supply support for TL7712AIP 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.

The TL77xxA family was engineered specifically as cost-effective, robust reset supervisors for microcomputer and microprocessor systems requiring precise, hysteresis-stabilized undervoltage detection across multiple supply rails - with TL7712AIP targeting 12-V logic and memory applications.

FAQ

What is the exact undervoltage threshold voltage of TL7712AIP?

The TL7712AIP has a guaranteed negative-going input threshold voltage (V_IT−) of 10.6 V (min), 10.8 V (typ), and 11.0 V (max) at 25°C. This threshold applies to the SENSE pin and is factory-trimmed for 12-V system supervision. The device also provides 35 mV hysteresis to prevent oscillation near the trip point, making TL7712AIP suitable for stable reset generation in noisy 12-V environments.

Does TL7712AIP require external components to function?

Yes, TL7712AIP requires three external components for basic operation: a 0.1 µF capacitor between REF and GND, a 0.1 µF capacitor between V_CC and GND, and a timing capacitor (CT) between Pin 3 and GND to set reset pulse duration. Pull-up resistors on RESET and RESET outputs are also required due to their open-collector structure. These components ensure noise immunity, stable reference, accurate timing, and proper logic-level interfacing in the TL7712AIP application.

Can TL7712AIP monitor a 12-V supply directly on the SENSE pin?

Yes, TL7712AIP is explicitly designed for direct 12-V monitoring: its SENSE pin supports input voltages up to 20 V, and its internal threshold is set to 10.8 V - optimized for detecting brownouts in nominal 12-V systems. No external resistor divider is needed when connecting SENSE directly to the 12-V rail, simplifying design and improving accuracy. This direct-connect capability is confirmed in TI's datasheet Section 8.1 and Application Figure 8 for TL7712AIP.

What is the purpose of the REF pin on TL7712AIP?

The REF pin on TL7712AIP provides a precision 2.48–2.58 V temperature-compensated voltage reference, derived from the same bandgap source used for threshold sensing. It can be used to bias external comparators, ADC references, or analog circuitry - eliminating the need for a separate reference IC. A 0.1 µF capacitor to GND is mandatory at REF to suppress noise, as specified in TI's Electrical Characteristics table and Layout Guidelines section for TL7712AIP.

Is TL7712AIP pin-compatible with other TL77xxA variants?

Yes, all TL77xxA devices - including TL7702A, TL7705A, TL7709A, TL7712AIP, and TL7715A - share identical 8-pin SOIC (D) and PDIP (P) pinouts and electrical interfaces. The only functional difference is the factory-set V_IT− threshold (e.g., 10.8 V for TL7712AIP vs. 4.55 V for TL7705A). This allows drop-in replacement across the family when adjusting for different supply rails, provided the selected variant matches the target voltage and temperature grade (e.g., TL7712AIP = –40°C to +85°C).