Toshiba Semiconductor and Storage TC75S56FUTE85LF

Overview

TC75S56FUTE85LF from Toshiba Electronic Devices & Storage Corporation is a CMOS single comparator IC with push-pull output, operating from 1.8 V to 7 V single supply, featuring 10 µA typical supply current, ±1 mV typical input offset voltage, and −40°C to +85°C operating temperature range. It serves as a low-power voltage threshold detector in battery-powered sensor interfaces and power monitoring circuits.

For engineers reviewing the TC75S56FUTE85LF datasheet, TC75S56FUTE85LF pinout, TC75S56FUTE85LF application, or TC75S56FUTE85LF equivalent, key selection considerations include its rail-to-rail input range (VSS to VDD − 0.9 V), TTL/CMOS-compatible output drive, sub-1 µA standby current scalability, and SSOP-5 package compatibility with space-constrained PCB layouts.

Technical Context

The TC75S56FUTE85LF implements a CMOS-input differential amplifier stage followed by a push-pull output buffer, enabling direct interfacing with digital logic without external pull-up resistors. Its input bias current of 1 pA and input offset current of 1 pA support high-impedance sensing applications such as precision reference comparison and photodiode signal conditioning.

Designed for single-supply operation across 1.8–7 V, the device maintains a wide common-mode input range (VSS to VDD − 0.9 V) and delivers 94 dB open-loop gain. Propagation delays are specified at 250 ns (tPHL) and 550 ns (tPLH) under 100 mV overdrive at VDD = 3 V, confirming suitability for medium-speed level detection tasks.

Key Specifications

Pinout & Package

TC75S56FUTE85LF is housed in a 5-pin SSOP (Shrink Small Outline Package) with 0.65 mm pitch (SSOP5-P-0.65A), measuring 2.9 mm × 2.8 mm × 1.25 mm and weighing 0.006 g (typ.). This compact surface-mount package supports high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV331IDBVR and NCS2200SQ2T2G, TC75S56FUTE85LF uniquely combines push-pull output, true rail-to-rail input, and sub-12 µA supply current across 1.8–7 V - making it optimal for low-power, single-supply, ground-referenced sensing where external components must be minimized.

Availability

TC75S56FUTE85LF is available at Aetrix Electronics and suitable for battery management systems, industrial sensor nodes, portable medical devices, and power supply supervision requiring stable component supply and long-term obsolescence planning.

Supply support for TC75S56FUTE85LF 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

Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and analog ICs with emphasis on energy efficiency, reliability, and industrial-grade performance.

The TC75S56FUTE85LF belongs to Toshiba's CMOS Linear Integrated Circuit family, engineered specifically for low-power, single-supply analog signal conditioning in space- and power-constrained embedded systems.

FAQ

What is the maximum operating supply voltage for TC75S56FUTE85LF?

The TC75S56FUTE85LF supports a maximum supply voltage of 7 V on VDD relative to VSS. Absolute maximum ratings specify ±3.5 V for dual-supply operation or 7 V for single-supply use. Exceeding this may cause permanent damage due to internal CMOS gate oxide breakdown. Always ensure VDD remains within 1.8 V to 7 V during normal operation, and confirm decoupling capacitor placement per Toshiba's layout guidelines.

Does TC75S56FUTE85LF have rail-to-rail input capability?

Yes, TC75S56FUTE85LF features a wide common-mode input voltage range from VSS to VDD − 0.9 V. At VDD = 3 V, this spans 0 V to 2.1 V; at VDD = 5 V, it covers 0 V to 4.1 V. This allows direct connection of sensors or dividers referenced to ground without level-shifting circuitry - a key advantage over comparators with limited input ranges.

Can TC75S56FUTE85LF drive a standard TTL input directly?

Yes, TC75S56FUTE85LF can drive standard TTL inputs directly due to its push-pull CMOS output stage. At VDD = 5 V, it sources 9–21 mA and sinks 13–25 mA, exceeding TTL's 400 µA input current requirement. Output high voltage (VOH) reaches 4.7–4.9 V and low voltage (VOL) stays below 0.3 V at 5 mA load - fully compliant with TTL logic thresholds without external components.

What is the typical input offset voltage of TC75S56FUTE85LF and how does it affect accuracy?

The TC75S56FUTE85LF has a typical input offset voltage of ±1 mV, with a maximum of ±7 mV over temperature. In a 3.3 V system monitoring a 100 mV overvoltage threshold, this introduces ≤7% absolute error. For higher-precision applications, pairing TC75S56FUTE85LF with a matched reference or using trimming resistors compensates for offset drift across −40°C to +85°C.

Is TC75S56FUTE85LF susceptible to latch-up and how can it be prevented?

Yes, TC75S56FUTE85LF uses a CMOS process and is susceptible to latch-up. Prevention requires strict adherence to voltage limits: no I/O pin voltage may exceed VDD or drop below VSS, and power-on sequencing must ensure VDD stabilizes before applying input signals. Adding series current-limiting resistors (≥1 kΩ) on IN(+) and IN(−) further mitigates risk in noisy environments.