Texas Instruments TL7712ACDG4

Overview

TL7712ACDG4 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 (0.65–2.6 ms with 0.1 µF CT), temperature-compensated 2.53 V reference output, and operates across 3.5 V to 18 V supply range. Used in industrial CMOS logic and embedded controllers requiring reliable power-on and brownout reset.

For engineers reviewing the TL7712ACDG4 datasheet, TL7712ACDG4 pinout, TL7712ACDG4 application, or TL7712ACDG4 equivalent, this page delivers verified electrical parameters, SOIC-8 package details, functional pin roles, real-world use cases in 12-V systems, and two validated alternative supervisors with documented threshold and timing differences.

Technical Context

The TL7712ACDG4 implements a dual-output reset architecture with active-high RESET and active-low RESET signals, triggered by undervoltage detection at the SENSE input relative to its factory-trimmed 10.8 V threshold. Its internal delay timer uses an external capacitor (CT) to generate a precise reset pulse, with timing governed by t_d = 1.3 × 10⁴ × C_T.

It integrates a stable 2.53 V bandgap reference (±16 mV over –40°C to +85°C), supports open-collector outputs with ±16 mA drive capability, and maintains functionality down to V_CC = 3.5 V while tolerating up to 20 V absolute maximum supply voltage.

Key Specifications

Pinout & Package

TL7712ACDG4 is housed in an 8-pin SOIC (D) package with 1.27 mm pitch, JEDEC MS-012AC compliant, body size 4.90 mm × 3.91 mm, and RoHS-compliant NiPdAu lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL7712ACDG4, TPS3808G12DBVR offers tighter threshold accuracy but cannot monitor 12-V rails directly, while MAX6805US29D3+T serves low-voltage applications only and omits the critical dual-output and reference functions required for 12-V industrial designs.

Availability

TL7712ACDG4 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and legacy instrumentation requiring stable component supply with long-term manufacturability and consistent parametric performance.

Supply support for TL7712ACDG4 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in power management and system supervision ICs.

The TL77xxA product line was engineered specifically for robust reset control in microcomputer and microprocessor systems, emphasizing precision threshold accuracy, external timing flexibility, and operation across wide industrial supply ranges.

FAQ

What is the exact supply-voltage threshold for TL7712ACDG4?

The TL7712ACDG4 has a nominal negative-going input threshold voltage (V_IT−) of 10.8 V, with a guaranteed range of 10.6 V to 11.0 V at 25°C. This threshold is factory-trimmed and applies specifically to the TL7712A variant within the TL77xxA family, making TL7712ACDG4 suitable for direct 12-V rail supervision without external resistive scaling.

Does TL7712ACDG4 support both active-high and active-low reset outputs?

Yes, TL7712ACDG4 provides two complementary reset outputs: pin 6 (RESET) is active-high and pin 5 (RESET) is active-low. Both are open-collector, requiring external pull-up or pull-down resistors. This dual-output configuration allows direct interfacing with mixed-logic systems-such as driving both TTL enable inputs and CMOS reset pins-without additional level-shifting circuitry.

How is the reset pulse duration set for TL7712ACDG4?

The reset pulse duration of TL7712ACDG4 is set externally using capacitor CT connected between pin 3 (CT) and GND. The relationship is t_d = 1.3 × 10⁴ × C_T, where C_T is in farads and t_d in seconds. With a standard 0.1 µF capacitor, TL7712ACDG4 delivers a typical pulse of 1.3 ms, ranging from 0.65 ms to 2.6 ms across process and temperature extremes.

Can TL7712ACDG4 be used to monitor a 5-V supply?

No-TL7712ACDG4 is specifically trimmed for 12-V supervision (10.8 V threshold). For 5-V systems, TI recommends TL7705A variants (e.g., TL7705ACDG4) with a 4.55 V threshold. Using TL7712ACDG4 on a 5-V rail would cause continuous reset assertion since the supply remains below its 10.6 V minimum trip point, rendering it nonfunctional in that context.

What package and temperature grade does TL7712ACDG4 have?

TL7712ACDG4 is packaged in an 8-pin SOIC (D package) with dimensions 4.90 mm × 3.91 mm and is rated for commercial temperature operation from 0°C to +70°C. The "C" suffix in TL7712ACDG4 denotes the AC temperature grade, and "G4" indicates TI's green (RoHS-compliant) packaging with NiPdAu lead finish and Level-1 moisture sensitivity rating.