Renesas ISL55110IVZ-T

Overview

ISL55110IVZ-T from Renesas Electronics is a dual high-speed MOSFET driver with in-phase outputs, designed for accurate pulse generation and buffering in precision timing-critical systems. It delivers 3.5A peak output current, 1.5ns rise/fall times (100pF load), and operates across 5V–13.2V driver rail (VH) and 2.7V–5.5V logic supply (VDD), enabling fast-switching control of power MOSFETs in ultrasound transducer arrays.

For engineers reviewing the ISL55110IVZ-T datasheet, ISL55110IVZ-T pinout, ISL55110IVZ-T application, or ISL55110IVZ-T equivalent, key selection criteria include verified low skew (<0.5ns), tight input threshold control (±0.1V hysteresis), power-down mode (12µA quiescent), and compatibility with both 3.3V and 5V logic families in industrial imaging and clock distribution designs.

Technical Context

The ISL55110IVZ-T implements two independent CMOS driver channels with in-phase logic-to-high-voltage translation, each featuring tightly controlled input thresholds (V_{IX_LH} = 1.42V typ, V_{IX_HL} = 1.22V typ) to minimize pulse-width distortion from input slew rate variations. Its output stage swings rail-to-rail between GND and VH with r_DS = 3–6Ω, supporting fast edge rates into capacitive loads up to 680pF.

It integrates dedicated PD (power-down) control and - unlike the QFN variant - omits ENABLE functionality in the 8-lead TSSOP package (ISL55110IVZ-T). Operation is specified over –40°C to +85°C, with thermal resistance θ_JA = 140°C/W and θ_JC = 46°C/W for the TSSOP package, requiring careful PCB layout for thermal management under continuous high-frequency switching.

Key Specifications

Pinout & Package

ISL55110IVZ-T uses an 8-lead TSSOP package (M8.173) with exposed thermal pad connected internally to GND. Pin 11 (GND) on the QFN variant corresponds to Pin 3 (GND) in this TSSOP configuration; thermal pad must be soldered to PCB ground plane per Renesas layout guidelines.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-speed MOSFET driver applications.

Compared with ISL55110IRZ-T, the ISL55110IVZ-T offers lower component height and simpler layout but higher thermal resistance; compared with TC4427ACOA, it provides true dual-channel synchronization and power management - critical for medical imaging and precision timing systems.

Availability

ISL55110IVZ-T is available at Aetrix Electronics and suitable for ultrasound imaging systems, CCD-based industrial cameras, and high-speed clock distribution circuits requiring stable component supply, RoHS-compliant packaging, and full industrial temperature range support.

Supply support for ISL55110IVZ-T 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 specializing in microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT applications.

The ISL55110 product line was engineered specifically for high-fidelity pulse generation in medical ultrasound and scientific imaging systems, where timing accuracy, output drive strength, and channel matching are non-negotiable.

FAQ

What is the maximum allowable VH voltage for ISL55110IVZ-T?

The absolute maximum VH voltage for ISL55110IVZ-T is 14.0V, but the recommended operating range is 5V to 13.2V per the datasheet. Exceeding 13.2V may compromise long-term reliability and is not guaranteed across temperature extremes. The ISL55110IVZ-T must be operated within these limits to maintain specified 3.5A peak output current and sub-0.5ns skew performance.

Does ISL55110IVZ-T support 3.3V logic inputs?

Yes, ISL55110IVZ-T is fully compatible with 3.3V logic families. Its input thresholds (V_{IX_LH} = 1.42V typ, V_{IX_HL} = 1.22V typ) and 0.2V hysteresis ensure robust recognition of 3.3V logic levels across –40°C to +85°C. The ISL55110IVZ-T maintains this compatibility even with slow-rising input edges, minimizing pulse-width distortion in FPGA or microcontroller interfacing.

Is there an ENABLE pin on the ISL55110IVZ-T package?

No, the ISL55110IVZ-T (8-lead TSSOP) does not include an ENABLE pin. That function is exclusive to the 16-lead QFN variants (e.g., ISL55110IRZ-T). The ISL55110IVZ-T relies solely on the PD (power-down) pin for low-power state control. This simplifies routing but removes high-speed tri-state capability - a key distinction when selecting between TSSOP and QFN versions of ISL55110IVZ-T.

What is the thermal resistance (θ_JA) of ISL55110IVZ-T?

The ISL55110IVZ-T has a junction-to-ambient thermal resistance (θ_JA) of 140°C/W, measured on a standard test board in free air. This value reflects the 8-lead TSSOP package's inherent thermal limitations versus the QFN variant (45°C/W). To maintain safe operation, the ISL55110IVZ-T requires careful PCB layout with adequate copper area and thermal vias - especially under continuous 50MHz+ switching with 330pF loads.

Can ISL55110IVZ-T drive a 680pF load within specification?

Yes, ISL55110IVZ-T is characterized to drive up to 680pF loads with verified performance: t_R = 6.2ns and t_F = 6.9ns (VH = 12V, CL = 1nF), and t_pd < 14.5ns. These values are guaranteed across temperature and voltage ranges. When driving such loads, the ISL55110IVZ-T maintains <0.5ns skew and meets 6ns minimum pulse width - making it suitable for large CCD array horizontal drivers and high-capacitance piezo actuation.