Renesas ISL88002IE23Z-TK

Overview

ISL88002IE23Z-TK from Renesas Electronics is an ultra-low-power voltage supervisor IC with open-drain active-low reset output, 2.32V fixed threshold, ±1.2% accuracy, 160nA supply current, and 190ms power-on reset timeout-designed for brownout protection in battery-powered microcontroller systems.

For engineers reviewing the ISL88002IE23Z-TK datasheet, ISL88002IE23Z-TK pinout, ISL88002IE23Z-TK application, or ISL88002IE23Z-TK equivalent, key selection criteria include reset output type (open-drain), VDD trip point tolerance, minimum operating voltage (1V), thermal stability over –40°C to +85°C, and SC-70 package compatibility with space-constrained PCB layouts.

Technical Context

The ISL88002IE23Z-TK implements a precision bandgap reference and comparator-based monitoring circuit that asserts reset when VDD falls below 2.32V (±1.2%) and holds reset for ≥190ms after VDD rises above threshold. Its internal POR circuit activates at VDD = 1V, ensuring reliable initialization even during weak power-up conditions.

As an open-drain RST device, it requires an external pull-up resistor (5kΩ–100kΩ) and supports level-shifting across voltage domains. It features 1% hysteresis to prevent noise-induced chatter and exhibits <0.48mV/°C temperature coefficient on VTHVDD, enabling stable operation across industrial temperature range.

Key Specifications

Pinout & Package

ISL88002IE23Z-TK is housed in a Pb-free 3-lead SC-70 package (JEDEC MO-203AA, pkg drawing P3.049), measuring 2.20mm × 1.35mm × 0.95mm, with gull-wing leads and 0.65mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX809SEUR+T and TPS3801K32DBVR, the ISL88002IE23Z-TK delivers the lowest power consumption (160nA) and matches the exact 2.32V threshold of the TPS3801K32DBVR while offering open-drain flexibility-but requires an external pull-up and trades off absolute accuracy for ultra-low IQ.

Availability

ISL88002IE23Z-TK is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and smart meter communication subsystems requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for ISL88002IE23Z-TK 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

Renesas Electronics is a global semiconductor leader delivering high-performance analog, mixed-signal, and embedded processing solutions for automotive, industrial, and IoT markets.

The ISL88002IE23Z-TK belongs to Renesas' ultra-low-power voltage supervisor family, engineered specifically for battery-critical applications where nanoscale current draw and precise threshold control directly impact product lifetime and reliability.

FAQ

What is the reset output configuration of the ISL88002IE23Z-TK?

The ISL88002IE23Z-TK features an open-drain active-low reset output (RST pin). This requires an external pull-up resistor (5kΩ–100kΩ) to the target logic voltage domain. Unlike push-pull variants, this configuration enables wired-OR reset buses and voltage-level translation-critical for mixed-voltage systems. The ISL88002IE23Z-TK does not drive HIGH internally.

Does the ISL88002IE23Z-TK support operation below 1.8V?

Yes-the ISL88002IE23Z-TK guarantees valid reset assertion down to VDD = 1V, though its specified operating range is 1.8V to 2.75V for 2.32V threshold variants. Below 1.8V, reset remains functional but timing parameters (e.g., tPOR) may deviate from datasheet specs. The ISL88002IE23Z-TK is not characterized for continuous operation below 1.8V.

What is the thermal performance of the ISL88002IE23Z-TK in SC-70 package?

The ISL88002IE23Z-TK in SC-70 (P3.049) has a typical junction-to-ambient thermal resistance (θJA) of 640°C/W under standard JEDEC test conditions. This reflects its ultra-low power dissipation (≤1nW at 160nA/1.8V), making self-heating negligible. No heatsinking is required, and ambient temperature rise from the ISL88002IE23Z-TK itself is undetectable in system-level thermal analysis.

How does the ISL88002IE23Z-TK compare to the ISL88001IE23Z-TK?

The ISL88002IE23Z-TK and ISL88001IE23Z-TK share identical threshold (2.32V), accuracy (±1.2%), supply current (160nA), and package-but differ in reset output topology: ISL88002IE23Z-TK uses open-drain RST, while ISL88001IE23Z-TK uses push-pull RST. Choose ISL88002IE23Z-TK when wired-OR reset buses or level-shifting is needed; choose ISL88001IE23Z-TK to eliminate external pull-up components.

Is the ISL88002IE23Z-TK RoHS compliant and lead-free?

Yes-the ISL88002IE23Z-TK is Pb-free and RoHS compliant per EU Directive 2011/65/EU. It uses NiPdAu (e4) termination finish and is qualified for both SnPb and lead-free reflow profiles (per IPC/JEDEC J-STD-020). Moisture Sensitivity Level is rated per device information page, and the SC-70 package meets JEDEC MO-203AA standards.