STMicroelectronics TS880ILT

Overview

TS880ILT from STMicroelectronics is a single-channel nanopower open-drain comparator in SOT23-5 package, designed for ultra-low-power signal threshold detection in battery-constrained systems. It delivers 250 nA typical supply current, rail-to-rail input operation down to 0.9 V supply, and 2 µs typical propagation delay at 100 mV overdrive with 10 kΩ pull-up. It is used in portable medical sensors for low-voltage battery monitoring and wake-up logic.

For engineers reviewing the TS880ILT datasheet, TS880ILT pinout, TS880ILT application, or TS880ILT equivalent, key selection criteria include sub-µA quiescent current across 0.9–5.5 V supply, guaranteed -40°C to +125°C operation, open-drain output compatibility with mixed-voltage logic, and validated performance at 0.9 V rail-critical for coin-cell and energy-harvesting designs.

Technical Context

The TS880ILT implements a precision comparator core with built-in 2.5–3.1 mV hysteresis (typ.) to prevent oscillation near trip points, and rail-to-rail inputs that operate within 0.2 V of either supply rail across its full voltage range. Its open-drain output supports flexible level-shifting via external pull-up and sinks up to 22 mA at 2.7 V supply.

It features ultra-stable input offset voltage (±5 mV max over temperature), low input bias current (≤10 pA typ.), and high CMRR (74 dB min at 2.7 V), enabling accurate DC-coupled sensing in noisy, low-amplitude analog front-ends without external filtering.

Key Specifications

Pinout & Package

SOT23-5 package: 5-pin surface-mount, 2.9 mm × 1.6 mm × 1.1 mm body, gull-wing leads, JEDEC MO-178AA compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar nanopower open-drain comparator applications.

Compared with TLC3701CDR and NCS3402DR2G, TS880ILT uniquely combines 0.9 V operation, rail-to-rail inputs, built-in hysteresis, and 250 nA current in one SOT23-5 package-making it the only drop-in solution for ultra-low-voltage, high-accuracy threshold detection in space- and power-constrained designs.

Availability

TS880ILT is available at Aetrix Electronics and suitable for portable medical devices, energy-harvesting sensors, and industrial battery backup systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TS880ILT 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering intelligent power, sensing, and control solutions for automotive, industrial, and consumer markets.

The TS880 series belongs to ST's nanopower analog portfolio, engineered specifically for battery-operated and energy-constrained applications where microampere-level current budgets and wide supply flexibility are mandatory design constraints.

FAQ

What is the maximum sink current capability of TS880ILT at 1.2 V supply?

At VCC = 1.2 V, TS880ILT can sink 3.6 mA (typ.) with VOL ≤ 50 mV at 25°C. This is sufficient to directly drive LEDs, small MOSFET gates, or standard logic inputs with appropriate pull-up sizing. Performance degrades linearly below 1.2 V; at 0.9 V, sink current drops to ~1.2 mA.

Does TS880ILT require external hysteresis resistors?

No. TS880ILT integrates 2.5–4.2 mV of internal hysteresis (depending on supply and temperature), eliminating the need for external feedback components. This simplifies PCB layout, reduces component count, and improves reliability in space-constrained portable designs.

Can TS880ILT operate with inputs biased below VCC−?

No. Absolute maximum ratings specify input voltage range as (VCC−) − 0.3 V to (VCC+) + 0.3 V. Inputs must remain within this window; operation below VCC− risks latch-up or parametric shift. The rail-to-rail input stage functions down to VCC−, not below it.

Is TS880ILT pin-compatible with other comparators in SOT23-5 package?

No. TS880ILT uses a non-standard pinout: Pin 1 = OUT, Pin 2 = VCC−, Pin 3 = IN+, Pin 4 = IN−, Pin 5 = VCC+. This differs from industry-standard SOT23-5 comparators (e.g., LMV331) where Pin 1 is often IN−. Direct replacement requires PCB redesign.