Renesas ISL89411IBZ-T13

Overview

ISL89411IBZ-T13 from Intersil is an inverting dual-channel high-speed power MOSFET driver in 8-lead SOIC package, delivering ±2.0A peak output current with matched 18–25ns turn-on/turn-off delays and 7.5–20ns rise/fall times (CL = 500–1000pF). It operates from 4.5V to 18V supply and targets gate driving of synchronous buck converters and Class D amplifiers.

For engineers reviewing the ISL89411IBZ-T13 datasheet, ISL89411IBZ-T13 pinout, ISL89411IBZ-T13 application, or ISL89411IBZ-T13 equivalent, key selection criteria include inverting logic configuration, low 1–2.5mA quiescent supply current at +25°C, matched propagation delays for clock skew reduction, and SOIC-8 tape-and-reel packaging for automated assembly.

Technical Context

The ISL89411IBZ-T13 implements a proprietary "Turbo-Driver" architecture that accelerates input stages by leveraging output voltage swing feedback, enabling sub-25ns propagation delays. Its internal structure includes hysteresis-equipped input buffers, level shifters, and super-inverter output stages with non-overlapped drive control to prevent shoot-through.

It features complementary inverting outputs: INA drives OUTA inverted, INB drives OUTB inverted - distinct from ISL89410 (non-inverting) and ISL89412 (complementary). Input hysteresis is 0.3V, and logic thresholds are VIH ≥2.4V / VIL ≤0.8V, supporting TTL/CMOS-compatible signaling across its full –40°C to +85°C operating range.

Key Specifications

Pinout & Package

ISL89411IBZ-T13 is housed in an 8-lead narrow-body SOIC package (JEDEC MS-012, pkg drawing M8.15E), RoHS-compliant with 100% matte tin (e3) termination, rated for Pb-free reflow and compatible with SnPb soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ISL89411IBZ and LM5112MM/NOPB, the ISL89411IBZ-T13 uniquely combines inverting logic, matched sub-25ns delays, and ultra-low quiescent current - making it optimal for timing-sensitive, low-power dual-MOSFET gate drive where logic polarity and skew control are design-critical.

Availability

ISL89411IBZ-T13 is available at Aetrix Electronics and suitable for switch mode power supplies, Class D audio amplifiers, ultrasonic transducer drivers, and pulsed RF generators requiring stable component supply, consistent tape-and-reel delivery, and long-term industrial lifecycle support.

Supply support for ISL89411IBZ-T13 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 precision analog and power management semiconductor company, now part of Renesas Electronics, with deep expertise in high-speed drivers, PMICs, and robust industrial-grade ICs.

The ISL89411IBZ-T13 belongs to Intersil's high-speed dual MOSFET driver family, designed specifically for timing-critical gate driving in SMPS, audio, and ultrasonic systems where matched delay, low skew, and inverting logic are essential.

FAQ

What logic configuration does the ISL89411IBZ-T13 implement?

The ISL89411IBZ-T13 implements dual inverting logic: INA drives OUTA inverted, and INB drives OUTB inverted. This distinguishes it from the non-inverting ISL89410IBZ-T13 and complementary-output ISL89412IBZ-T13. The inverting behavior is hardwired and cannot be reconfigured. All timing specifications in the datasheet assume this inverting operation, and the device delivers matched delays between both channels under this configuration.

What is the maximum capacitive load the ISL89411IBZ-T13 can drive reliably?

The ISL89411IBZ-T13 is characterized up to 1000pF load capacitance, with rise/fall times specified as 10–20ns at that level. For loads exceeding 1nF, performance degrades predictably: tR/tF increase linearly with CL, and power dissipation rises per P = Qc × Vgs × fSW. Driving >2nF loads is feasible with external gate resistors to dampen ringing, but layout inductance must be minimized - the recommended loop area between V+, GND, and outputs must be kept as small as possible per Figure 14.

Does the ISL89411IBZ-T13 support 3.3V logic inputs?

Yes, the ISL89411IBZ-T13 accepts 3.3V logic inputs: VIH is guaranteed ≥2.4V and VIL ≤0.8V, fully compatible with standard 3.3V CMOS/TTL levels. At V+ = 18V, Intersil recommends minimum input rise/fall times of 100ns to limit internal bias current dissipation. Input hysteresis of 0.3V further ensures robust operation in noisy environments, even with slow-ramping or marginally compliant 3.3V signals.

How does the ISL89411IBZ-T13 prevent shoot-through in bridge configurations?

The ISL89411IBZ-T13 incorporates non-overlapped drive techniques in its internal output stage, ensuring that the high-side and low-side drive signals never overlap in time - even during rapid transitions. This built-in dead-time control eliminates the need for external timing components or complex gate-resistor tuning. The result is inherent shoot-through protection for half-bridge and full-bridge topologies, directly improving system reliability and reducing MOSFET failure risk without adding design complexity.

Is the ISL89411IBZ-T13 pin-compatible with earlier Intersil drivers like the EL7212?

No, the ISL89411IBZ-T13 is not pin-compatible with the EL7212. Although functionally similar as dual inverting drivers, the ISL89411IBZ-T13 uses an 8-lead SOIC package with NC pins at positions 1 and 8, while the EL7212 uses an 8-pin SOIC with functional pins at all positions (including enable and VCC bypass). Pin mapping differs fundamentally: EL7212 assigns EN and VCC to pins 1 and 8, whereas ISL89411IBZ-T13 leaves them unconnected. PCB redesign is required for replacement.