Renesas ISL88016IHTZ-TK

Overview

ISL88016IHTZ-TK from Intersil is a pin-selectable voltage supervisor IC in a 6-lead TSOT-23 package, designed for supply voltage monitoring and power-on reset control in low-power embedded systems. It supports programmable trip points from 1.60V to 2.85V in 50mV steps, delivers ±2% threshold accuracy over temperature, asserts reset down to VDD = 0.8V, and draws only 3µA typical supply current - enabling reliable brownout detection in battery-powered instrumentation.

For engineers reviewing the ISL88016IHTZ-TK datasheet, ISL88016IHTZ-TK pinout, ISL88016IHTZ-TK application, or ISL88016IHTZ-TK equivalent, key selection considerations include its TwinPin™ RST/MR integration, no-external-component operation, immunity to supply transients, and compatibility with industrial temperature range (–40°C to +85°C) designs requiring stable reset timing and minimal board space.

Technical Context

The ISL88016IHTZ-TK implements a precision bandgap reference and comparator-based voltage monitoring architecture with built-in hysteresis (1%) to prevent noise-induced reset chatter. Its POR circuit asserts reset at VDD ≥ 1V and holds it for a guaranteed 140–280ms timeout before deassertion once VDD exceeds the programmed threshold.

Proprietary TwinPin™ technology merges active-low reset output and manual reset input onto Pin 6 (RST/MR), using an internal 100kΩ pull-up to VDD and debounced active-low logic - eliminating external pull-ups while supporting push-button manual reset with ≥10µs pulse width and <100mV logic threshold.

Key Specifications

Pinout & Package

ISL88016IHTZ-TK is housed in a Pb-free, RoHS-compliant 6-lead TSOT-23 package (MDP0049), measuring 2.90mm × 2.80mm × 0.87mm, with gull-wing leads and 0.95mm pitch. The package supports reflow soldering per IPC/JEDEC J-STD-020 at peak temperatures up to 260°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6326UT26+T and TPS3808G18DBVR, the ISL88016IHTZ-TK uniquely combines programmable trip points, TwinPin™ manual reset, and 3µA operation in a 6-pin TSOT-23 - offering optimal trade-off between flexibility, power efficiency, and integration for industrial and portable designs.

Availability

ISL88016IHTZ-TK is available at Aetrix Electronics and suitable for process control systems, portable medical instruments, and industrial HMI panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for ISL88016IHTZ-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

Intersil Corporation is a leading provider of precision analog and power management solutions, serving industrial, infrastructure, and high-end consumer markets with high-reliability semiconductor products.

The ISL88016IHTZ-TK belongs to Intersil's voltage supervisor product line, engineered specifically for low-power, high-accuracy supply monitoring in space-constrained embedded systems where configurability and minimal external components are critical.

FAQ

What is the operating temperature range for the ISL88016IHTZ-TK?

The ISL88016IHTZ-TK is rated for industrial operation from –40°C to +85°C. This range is validated across all electrical specifications including voltage threshold accuracy (±2%), POR timeout (140–280ms), and supply current (3µA typical). The device remains fully functional down to VDD = 0.8V within this temperature envelope, making it suitable for deployment in uncontrolled environments such as factory floors or outdoor instrumentation enclosures.

How do I configure the voltage trip point on the ISL88016IHTZ-TK?

The ISL88016IHTZ-TK uses three VSET pins (VSET1, VSET2, VSET3) to select one of 26 discrete trip points from 1.60V to 2.85V in 50mV steps. Each pin is tied to GND, VDD, or left floating - for example, GND/GND/GND sets 1.60V, while FLOAT/FLOAT/FLOAT sets 2.25V. Configuration must be static during operation; reprogramming while powered is not supported. The full mapping is provided in the "Power-On Reset Voltage Setting" table of the FN6141 datasheet.

Does the ISL88016IHTZ-TK require external components to operate?

No, the ISL88016IHTZ-TK operates with no external components beyond a standard 0.1µF VDD decoupling capacitor. Its integrated TwinPin™ RST/MR terminal includes a 100kΩ internal pull-up resistor, and all voltage reference, comparator, and POR timing functions are self-contained. This eliminates external resistors, capacitors, or diodes typically needed in discrete reset circuits - reducing BOM cost and PCB area while improving reliability.

What is the reset timeout duration (tPOR) of the ISL88016IHTZ-TK?

The ISL88016IHTZ-TK features a guaranteed power-on reset timeout (tPOR) of 140ms minimum to 280ms maximum, independent of VDD voltage or temperature. This fixed delay ensures sufficient time for microcontrollers, FPGAs, and analog subsystems to stabilize after power-up before release from reset. The tPOR is internally generated and does not require external timing components - enabling predictable, repeatable system initialization across all operating conditions.

Can the ISL88016IHTZ-TK monitor voltages below 1.60V?

No, the ISL88016IHTZ-TK's programmable voltage trip range is strictly limited to 1.60V–2.85V in 50mV increments. Voltages below 1.60V cannot be selected as valid thresholds. However, the device itself remains operational and asserts reset down to VDD = 0.8V - meaning it will hold reset active if the monitored supply collapses below the programmed threshold and continues falling. For sub-1.6V monitoring, alternative supervisors such as the ISL88017 (2.15V–4.65V) or dedicated low-VDD devices would be required.