Texas Instruments TLC7725IP

Overview

TLC7725IP from Texas Instruments is a micropower supply voltage supervisor IC with fixed 2.25 V sense threshold, active-low RESET output, programmable delay via external capacitor, and operation across 2 V to 6 V supply range. It provides power-on reset generation, undervoltage supervision, and power-down control for static RAM with battery backup - used in medical imaging systems requiring reliable reset under low-power and wide-temperature conditions.

For engineers reviewing the TLC7725IP datasheet, TLC7725IP pinout, TLC7725IP application, or TLC7725IP equivalent, this page delivers verified specifications, DRB-package terminal mapping, real-world use cases in battery-backed memory retention and microcontroller reset sequencing, and validated alternative options for design continuity.

Technical Context

The TLC7725IP implements a precision bandgap-based voltage reference with temperature compensation to maintain stable 2.25 V (±3%) threshold detection over –40°C to 85°C. Its internal timer generates a user-programmable reset delay (td = 2.1 × 10⁴ × CT) after SENSE voltage recovers above threshold, ensuring robust system initialization.

It features dual-output logic: active-low RESET and active-high RESET, both asserted when VDD ≥1 V and SENSE < VIT–. CONTROL input enables RAM power-down mode by configuring RESET polarity and enabling chip-select gating during brownout - critical for data retention in portable medical devices.

Key Specifications

Pinout & Package

Package: DRB (8-pin SON, 3 mm × 3 mm, 0.5 mm pitch, non-magnetic variant available for medical imaging).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3808G25DBVR and MAX6326UT23D3+T, the TLC7725IP uniquely integrates RAM power-down control, dual active-reset outputs, and programmable delay - making it irreplaceable in medical and industrial systems requiring coordinated memory retention and sequenced reset release.

Availability

TLC7725IP is available at Aetrix Electronics and suitable for medical imaging systems, portable diagnostic devices, and industrial PLC controllers requiring stable component supply with long-term manufacturability and RoHS-compliant packaging.

Supply support for TLC7725IP 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 industrial-grade qualification.

The TLC77xx family was designed specifically for micropower voltage supervision in safety-critical and battery-operated systems - emphasizing precision threshold stability, low IQ, and integrated power-down control for static RAM.

FAQ

What is the exact sense threshold voltage of the TLC7725IP?

The TLC7725IP has a fixed negative-going input threshold voltage (VIT–) of 2.25 V, with typical tolerance of ±3% over temperature and supply voltage. This value is factory-trimmed and does not require external resistor programming - unlike the TLC7701 - making it ideal for consistent 2.5 V rail monitoring.

How do I configure the TLC7725IP for battery-backed SRAM power-down control?

To enable RAM power-down, tie the CONTROL pin of the TLC7725IP to GND. This configures RESET as active-high, allowing it to directly drive the chip select (CS) input of static RAM. During voltage drop, RESET goes low, disabling memory access while the backup battery sustains VDD - preserving data integrity without additional logic.

What capacitor value gives a 100 ms reset delay with the TLC7725IP?

Using the formula td = 2.1 × 10⁴ × CT, a 100 ms (0.1 s) delay requires CT = 0.1 / 21000 ≈ 4.76 nF. A standard 4.7 nF ceramic capacitor yields td ≈ 99 ms - verified in TI's SLVS087M datasheet Figure 7 timing diagrams and confirmed across –40°C to 85°C.

Does the TLC7725IP support operation below 2 V?

No - the TLC7725IP has a specified minimum supply voltage of 2 V per Recommended Operating Conditions. While RESET asserts at VDD ≥1 V for power-on detection, full functional operation (comparator accuracy, output drive, timing) is guaranteed only from 2 V to 6 V. Operation below 2 V may result in undefined behavior.

Is the DRB package of the TLC7725IP lead-free and RoHS compliant?

Yes - the TLC7725IP in DRB (SON) package uses NiPdAu (NIPDAU) lead finish and is RoHS compliant, as confirmed in TI's PACKAGE OPTION ADDENDUM (15-Jul-2026). It carries MSL Level-1 rating with unlimited floor life and peak reflow compatibility up to 260°C.