Renesas ISL6132IRZA-T

Overview

ISL6132IRZA-T from Intersil is a dual-channel, programmable overvoltage/undervoltage supervisory IC in a 24-lead QFN package, monitoring two independent voltage rails with windowed thresholds (e.g., 4V–5V). It features four VMON inputs (A/B for first rail, C/D for second), open-drain UVSTATUS/ OVSTATUS outputs per rail, dual PGOOD signals (PGOOD1 for AB pair, PGOOD2 for CD pair), and guaranteed valid STATUS/PGOOD operation down to VDD <1V. It is used in multivoltage DSPs, telecom systems, and graphics cards requiring precise power-rail validation.

For engineers reviewing the ISL6132IRZA-T datasheet, ISL6132IRZA-T pinout, ISL6132IRZA-T application, or ISL6132IRZA-T equivalent, this page delivers verified technical context, exact pin functions, real-world timing behavior (160ms stability delay, 30µs glitch immunity), true alternative part comparisons, and design-meaningful specifications - all extracted from FN9119 Rev 6.00 and validated against Intersil's official documentation.

Technical Context

The ISL6132IRZA-T implements two independent voltage-window monitors, each using an internal 0.633V reference and external resistor dividers to set UV and OV trip points. Each monitor pair (AB and CD) produces dedicated UVSTATUS/OVSTATUS outputs and a Boolean AND-based PGOOD signal that asserts only when both UV and OV conditions are simultaneously satisfied.

It operates across 1.5V–5.5V VDD, supports bias-down validity below 1V, and incorporates 30µs input glitch filtering on all VMON pins. The EN1/EN2 enable inputs control monitoring activation per rail, with sub-microsecond disable timing and internal pull-up to VDD.

Key Specifications

Pinout & Package

ISL6132IRZA-T uses a 24-lead, 4mm × 4mm QFN package (JEDEC MO-220 compliant) with exposed thermal pad (PD) requiring GND connection for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-rail voltage supervision applications.

Compared with TPS3808G33DBVR and MAX6816EUT+T, the ISL6132IRZA-T uniquely integrates dual independent voltage-window supervision in one 4×4mm QFN, delivering per-rail UV/OV status, dual PGOOD outputs, and 160ms stabilization - reducing component count, PCB area, and design complexity for multirail systems.

Availability

ISL6132IRZA-T is available at Aetrix Electronics and suitable for telecom infrastructure, medical imaging equipment, and industrial embedded control systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for ISL6132IRZA-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

Intersil Corporation designs high-performance analog, mixed-signal, and power management semiconductors for industrial, computing, and consumer markets.

The ISL6132IRZA-T belongs to Intersil's multiple-voltage supervisory IC product line, engineered specifically for reliable, window-based power-rail validation in multivoltage systems where precision, low quiescent current, and dual-rail independence are essential.

FAQ

What is the primary function of the ISL6132IRZA-T?

The ISL6132IRZA-T is a dual-channel voltage supervisor that independently monitors two power rails for both undervoltage and overvoltage conditions using window-comparison logic. It generates dedicated UVSTATUS/OVSTATUS outputs and dual PGOOD signals (PGOOD1 and PGOOD2), ensuring each rail remains within its programmed voltage window before enabling downstream circuitry. Its design centers on reliability in multivoltage systems such as telecom gear and graphics cards.

How does the ISL6132IRZA-T implement voltage window monitoring?

The ISL6132IRZA-T uses an internal 0.633V reference and external resistor dividers on four VMON inputs: VMON_A and VMON_B form the first window (e.g., 4V–5V), while VMON_C and VMON_D form the second. UVSTATUS_1 asserts when VMON_A exceeds 0.633V; OVSTATUS_1 asserts when VMON_B exceeds 0.633V; PGOOD1 goes high only when both are true. Identical logic applies to the CD pair for PGOOD2. This architecture is explicitly defined in FN9119 Rev 6.00 Section "Description and Operation".

What is the purpose of the 160ms stability delay in the ISL6132IRZA-T?

The 160ms delay ensures that a monitored voltage remains continuously above its UV threshold (or within its window) before releasing STATUS or PGOOD outputs. This prevents false power-good assertions during supply ramp-up or transient dips. The delay is implemented internally and applies identically to all STATUS outputs and PGOOD1/PGOOD2, as confirmed in the Electrical Specifications table (TdelST = 160ms) and Figure 4 timing diagram of FN9119 Rev 6.00.

Can the ISL6132IRZA-T operate with VDD below 1.5V?

Yes - the ISL6132IRZA-T guarantees valid STATUS and PGOOD output states even when VDD drops below 1V, as stated in the Features section and Electrical Specifications (STATUS/PGOOD valid to VDD <1V). However, full functional operation (monitoring, threshold comparison, delay timing) requires VDD ≥1.5V, which is the minimum specified operating voltage. Below 1.5V, the device remains in a known-safe state but does not actively supervise.

What package type and footprint does the ISL6132IRZA-T use?

The ISL6132IRZA-T uses a 24-lead, 4mm × 4mm QFN package (JEDEC MO-220 compliant, drawing L24.4x4), featuring an exposed thermal pad (PD) that must be electrically connected to GND. Its near chip-scale footprint improves PCB efficiency and reduces profile - critical for space-constrained applications like portable medical devices and dense telecom modules, as documented in the "Features" and "Package Outline Drawing" sections of FN9119 Rev 6.00.