Texas Instruments TLV810EA29DPWR

Overview

TLV810EA29DPWR from Texas Instruments is a push-pull active-high voltage supervisor IC designed for reliable power-on reset and brownout detection in low-power embedded systems. It features a fixed 2.93 V under-voltage threshold (±0.5% typical accuracy), 200 ms reset delay, 250 nA typical supply current, and operation down to 0.7 V VDD - enabling robust supervision in battery-powered and industrial edge devices.

For engineers reviewing the TLV810EA29DPWR datasheet, TLV810EA29DPWR pinout, TLV810EA29DPWR application, or TLV810EA29DPWR equivalent, key selection criteria include its active-high push-pull output topology, X2SON-5 (DPW) package footprint, guaranteed reset assertion below 2.93 V with hysteresis, and compatibility with systems requiring VPOR ≤ 0.9 V and glitch immunity ≥10 µs.

Technical Context

The TLV810EA29DPWR implements a precision bandgap-referenced comparator with integrated hysteresis (VHYS = 0.9–1.5%) to prevent chatter during slow-rising or noisy supply rails. Its internal timer ensures a fixed 200 ms reset timeout after VDD exceeds VIT+ (2.93 V + VHYS), independent of external components.

Unlike open-drain variants, this device drives RESET high actively during fault conditions - eliminating need for external pull-up resistors and simplifying interface with microcontrollers requiring active-high reset inputs. The X2SON-5 (DPW) package includes MR (manual reset) and thermal pad terminals, supporting compact PCB layouts and thermal management in space-constrained applications.

Key Specifications

Pinout & Package

X2SON-5 (DPW) package: 0.8 mm × 0.8 mm, 0.35 mm height, thermal pad (Pin 3) for enhanced heat dissipation and mechanical stability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV810EA29DPWR, TLV809EA29DPWR offers identical supervision timing and accuracy but requires signal inversion in firmware or hardware, while MAX809TRD29+T trades off quiescent current and package size for broader industry familiarity and simpler sourcing in non-battery-critical applications.

Availability

TLV810EA29DPWR is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, portable medical sensors, and automotive body electronics requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLV810EA29DPWR 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 power management technologies, with decades of expertise in high-reliability industrial and automotive ICs.

The TLV810E series belongs to TI's precision low-power voltage supervisor product line, engineered specifically for battery-operated, space-constrained, and thermally demanding applications where accuracy, ultra-low IQ, and small-footprint packaging are critical.

FAQ

What is the exact reset threshold voltage of TLV810EA29DPWR?

The TLV810EA29DPWR has a factory-programmed falling threshold voltage (V_IT–) of 2.93 V with ±0.5% typical accuracy over –40°C to +125°C. This value is laser-trimmed during production and does not require external calibration. The rising threshold (V_IT+) equals V_IT– plus hysteresis (0.9–1.5%), ensuring stable reset release without oscillation.

Does TLV810EA29DPWR require an external pull-up resistor on the RESET pin?

No, TLV810EA29DPWR uses a push-pull active-high output stage and drives RESET high during fault conditions without external components. Unlike open-drain supervisors (e.g., TLV803E), it sources current directly - eliminating the need for a pull-up resistor and reducing BOM count and PCB area.

What is the function of the thermal pad (Pin 3) on TLV810EA29DPWR?

The PAD terminal (Pin 3) on TLV810EA29DPWR is a non-electrical thermal interface designed to improve heat dissipation. It can be soldered to a copper pour or ground plane to lower junction-to-board thermal resistance (θ_JB = 320.4°C/W). Electrical connection to GND is optional but recommended for EMI suppression and mechanical stability.

Can TLV810EA29DPWR assert reset when supply voltage drops below 1 V?

Yes - TLV810EA29DPWR guarantees active-high RESET assertion down to VPOR = 900 mV, meaning it maintains defined output behavior even as VDD falls below 1 V. Below 900 mV, the output becomes undefined, but the 900 mV VPOR enables earlier fault detection than many competing supervisors with 1.2 V or higher VPOR limits.

How does the MR pin operate on TLV810EA29DPWR?

The MR (manual reset) pin on TLV810EA29DPWR is active-low with an internal 100 kΩ pull-up resistor. Pulling MR low forces immediate RESET assertion; releasing MR initiates the full 200 ms reset timeout before RESET deasserts. This allows hardware-triggered system reset independent of VDD monitoring, supporting test modes and field service recovery.