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Renesas ISL6132IR-T
- Part No.:
- ISL6132IR-T
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
ISL6132IR-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 24VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ISL6132IR-T from Intersil is a dual-channel voltage supervisor IC designed for precise undervoltage (UV) and overvoltage (OV) monitoring of two independent power rails. It features four programmable VMON inputs (UVMON_1/OVMON_1 and UVMON_2/OVMON_2), 0.633V internal reference, 160ms stability delay, open-drain STATUS/PGOOD outputs, and guaranteed valid operation with VDD <1V. It is used in multivoltage DSPs, telecom systems, and embedded control where windowed voltage integrity is critical.
For engineers reviewing the ISL6132IR-T datasheet, ISL6132IR-T pinout, ISL6132IR-T application, or ISL6132IR-T equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options - all grounded in the FN9119 Rev 6.00 datasheet and official Intersil documentation.
Technical Context
The ISL6132IR-T implements two independent voltage monitoring channels, each with dedicated UV and OV inputs referenced to a stable 0.633V internal bandgap. Each channel produces separate UVSTATUS/OVSTATUS outputs and its own PGOOD signal (PGOOD1/PGOOD2), asserting high only when both UV and OV thresholds are simultaneously satisfied within a defined window.
It uses a 30µs glitch filter on all VMON inputs to reject transients, guarantees STATUS/PGOOD validity down to VDD = 0.91V (lock-out threshold), and supports resistor-programmable trip points via external dividers. The 24-lead QFN package includes an exposed thermal pad (PD) that must be connected to GND for thermal and electrical stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 1.5V to 5.5V - powers IC across common logic and analog supply rails without external regulation. |
| VMON Threshold | 633 mV (typ) - fixed internal reference enables accurate, temperature-stable UV/OV trip point setting. |
| Stability Delay | 160 ms - ensures monitored rail remains stable before releasing STATUS/PGOOD, preventing false power-good asserts. |
| Glitch Filter | 30 µs - rejects short-duration supply transients, avoiding spurious resets or status toggling. |
| Output Type | Open-drain STATUS & PGOOD - allows wired-OR logic, level-shifting, and interface with diverse host logic families. |
| Temp Range | –40°C to +85°C - qualified for industrial and telecom environments requiring extended thermal reliability. |
| VDD Lock-Out | 0.91V (min) - prevents erratic behavior during brown-out by holding outputs low until bias stabilizes. |
Pinout & Package
ISL6132IR-T is housed in a 24-lead, 4mm × 4mm QFN package (JEDEC MO-220, pkg drawing L24.4x4) with an exposed thermal pad (Pin 24, PD) that must be soldered to a GND plane for thermal management and electrical reference stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 23) | Bias supply input | Accepts 1.5V–5.5V; powers internal circuitry and sets output pull-up ceiling for open-drain STATUS/PGOOD. |
| GND (Pin 10) | Reference ground | Common return for all VMON dividers, STATUS/PGOOD sinks, and internal reference; connects to PD thermal pad. |
| UVMON_1 (Pin 20) | Channel 1 undervoltage monitor | Input for lower trip threshold of first voltage window; compared to 0.633V reference to assert UVSTATUS_1. |
| OVMON_1 (Pin 17) | Channel 1 overvoltage monitor | Input for upper trip threshold of first voltage window; compared to 0.633V reference to assert OVSTATUS_1. |
| UVMON_2 (Pin 14) | Channel 2 undervoltage monitor | Input for lower trip threshold of second voltage window; enables independent dual-rail window monitoring. |
| OVMON_2 (Pin 12) | Channel 2 overvoltage monitor | Input for upper trip threshold of second voltage window; pairs with UVMON_2 to define full compliance window. |
| PGOOD1 (Pin 9) | Channel 1 power-good output | Open-drain signal high only when both UVMON_1 and OVMON_1 are satisfied - indicates rail 1 is within window. |
| PGOOD2 (Pin 11) | Channel 2 power-good output | Open-drain signal high only when both UVMON_2 and OVMON_2 are satisfied - enables independent system-level OK signals. |
| EN1 (Pin 1) | Channel 1 enable input | Active-high control; internally pulled up to VDD; disables monitoring and pulls PGOOD1/UVSTATUS_1/OVSTATUS_1 low when driven low. |
| EN2 (Pin 11) | Channel 2 enable input | Active-high control; internally pulled up to VDD; independently disables monitoring and status for channel 2. |
| UVSTATUS_1 (Pin 2) | Channel 1 undervoltage status | Open-drain output indicating UVMON_1 > 0.633V after 160ms stabilization - used for sequencing or fault isolation. |
| OVSTATUS_1 (Pin 5) | Channel 1 overvoltage status | Open-drain output indicating OVMON_1 > 0.633V - complements UVSTATUS_1 to confirm full window compliance. |
| UVSTATUS_2 (Pin 6) | Channel 2 undervoltage status | Open-drain output for second rail's UV condition - supports discrete fault reporting per monitored domain. |
| OVSTATUS_2 (Pin 7) | Channel 2 overvoltage status | Open-drain output for second rail's OV condition - enables granular diagnostics without requiring external logic. |
| PD (Pin 24) | Thermal pad | Exposed copper pad; must be electrically and thermally connected to PCB GND plane for thermal dissipation and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent UV/OV windows | Two fully isolated monitoring channels (AB and CD pairs) allow simultaneous validation of two distinct power rails against custom voltage windows. |
| Guaranteed operation below 1V VDD | STATUS and PGOOD remain valid and correctly asserted even as VDD drops to 0.91V - eliminates uncertainty during power-down sequences. |
| 30µs glitch immunity on VMON inputs | Hardware-filtered inputs prevent transient-induced false trips, enabling reliable operation in noisy power environments like DC-DC converter outputs. |
| Resistor-programmable thresholds | Uses standard 1% resistors in 3-resistor divider networks to set precise UV/OV trip points - no trimming or calibration required. |
| 4×4 mm QFN with exposed thermal pad | Compact near-chip-scale footprint improves PCB density; thermal pad connection to GND enhances thermal performance and EMI resilience. |
Applications
| Telecom Power Monitoring | Industrial Embedded Control |
|---|---|
|
Use Scenario: Monitoring ±10% voltage windows on 5V and 12V rails in network routers and base station power modules. IC Role / Device Role / Timing Role: ISL6132IR-T acts as dual-window supervisor, generating independent PGOOD1/PGOOD2 signals to validate rail integrity before FPGA or ASIC initialization. Use Value: Prevents system boot under out-of-spec conditions; eliminates need for discrete comparators and timing logic, reducing BOM count by 6+ components. |
Use Scenario: Ensuring safe startup of dual-rail microcontroller systems (e.g., 3.3V core + 5V I/O) in PLCs and motor drives. IC Role / Device Role / Timing Role: ISL6132IR-T monitors both rails with independent EN1/EN2 controls, enabling staged power-up and fault-isolated shutdown. Use Value: Enables deterministic power sequencing without external timers; 160ms delay ensures regulator settling before firmware execution begins. |
| Medical Equipment Power Integrity | Graphics Card Voltage Validation |
|
Use Scenario: Verifying tight voltage tolerances (±5%) on imaging subsystem supplies (e.g., 1.8V ADC bias, 3.3V sensor interface) in portable ultrasound units. IC Role / Device Role / Timing Role: ISL6132IR-T serves as redundant voltage guardrail, asserting PGOOD only when both rails meet medical-grade stability requirements. Use Value: Meets IEC 60601-1 safety-critical power supervision needs; open-drain outputs interface directly with watchdog ICs or MCU reset controllers. |
Use Scenario: Validating GPU core (1.2V) and memory (1.5V) rail windows in high-performance graphics cards subject to dynamic load transients. IC Role / Device Role / Timing Role: ISL6132IR-T provides real-time UV/OV detection per rail, feeding status into GPU power management unit for adaptive throttling. Use Value: 30µs glitch filtering prevents false overvoltage trips during GPU boost transitions; compact QFN fits dense VRM layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage window monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Single-channel UV supervisor only; no OV detection; fixed 3.3V threshold; no resistor programming. | Suitable only for single-rail undervoltage-only monitoring; cannot replace ISL6132IR-T's dual-window capability. | Select only if application requires simple 3.3V UV detection without overvoltage coverage or dual-rail support. |
| MAX6816EUT+T | Quad-channel UV supervisor; no OV monitoring; fixed thresholds; no windowed operation; smaller SOT-23-6 package. | Limited to basic undervoltage checks on up to four rails; lacks PGOOD window logic and dual-channel independence. | Choose when cost-sensitive, space-constrained designs need multi-rail UV-only supervision without windowing. |
Compared with TPS3808G33DBVR and MAX6816EUT+T, the ISL6132IR-T uniquely delivers true dual-rail voltage window supervision with programmable thresholds, making it irreplaceable in applications requiring simultaneous UV+OV validation on two independent supplies.
Availability
ISL6132IR-T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial embedded control, and medical equipment requiring stable component supply with long-term lifecycle assurance.
Supply support for ISL6132IR-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 is a leader in high-performance analog and power management semiconductors, now part of Renesas Electronics, with deep expertise in precision supervisory and sequencing solutions.
The ISL6132IR-T belongs to Intersil's multiple-voltage supervisory IC family, engineered specifically for robust, resistor-programmable dual-rail window monitoring in mission-critical power systems.
FAQ
What is the primary function of the ISL6132IR-T?
The ISL6132IR-T is a dual-channel voltage supervisor IC that independently monitors two power rails for both undervoltage (UV) and overvoltage (OV) conditions using programmable resistor-divider networks. It asserts separate PGOOD1 and PGOOD2 signals only when each monitored rail remains within its defined voltage window, ensuring reliable power integrity validation in complex systems.
How does the ISL6132IR-T handle power supply transients?
The ISL6132IR-T incorporates a built-in 30µs glitch filter on all VMON inputs, which suppresses short-duration transients and prevents false triggering of UVSTATUS, OVSTATUS, or PGOOD outputs. This hardware-level filtering ensures stable monitoring even on noisy DC-DC outputs or during load-step events, eliminating the need for external RC filtering.
Can the ISL6132IR-T operate with a 1.8V supply voltage?
Yes, the ISL6132IR-T operates across a VDD range of 1.5V to 5.5V, so 1.8V is fully supported. Its STATUS and PGOOD outputs remain valid and correctly asserted down to VDD = 0.91V, and the internal 0.633V reference maintains accuracy across the full supply and temperature range - confirmed in the FN9119 datasheet Electrical Specifications table.
What is the purpose of the PD pin on the ISL6132IR-T?
The PD pin (Pin 24) is the exposed thermal pad of the 4mm × 4mm QFN package. It must be electrically connected to the PCB's GND plane to provide thermal dissipation, reduce junction temperature, improve noise immunity, and stabilize the internal reference. Leaving PD unconnected violates the thermal design requirements and may cause functional instability or premature failure.
How are voltage thresholds programmed on the ISL6132IR-T?
Voltage thresholds are programmed using external resistor dividers connected to UVMON_1/OVMON_1 and UVMON_2/OVMON_2 pins. A three-resistor string per channel sets independent UV and OV trip points relative to the internal 0.633V reference. Datasheet Figure 5 and the "Description and Operation" section provide exact calculation methods and example values for common windows like 4V–5V.
ISL6132IR-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
ISL6132IR-T FAQ
1.How can I place an order for ISL6132IR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6132IR-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL6132IR-T reliable?
The price and inventory of ISL6132IR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6132IR-T is usually 5 days.
3.What payment methods are accepted for ISL6132IR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6132IR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6132IR-T?
ISL6132IR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6132IR-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL6132IR-T?
For technical support, including ISL6132IR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6132IR-T requirements.
6.How does Aetrix verify that ISL6132IR-T is sourced from the original manufacturer or authorized distributors?
All ISL6132IR-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL6132IR-T meets industry standards.
7.What is the process for return or replacement of ISL6132IR-T?
All ISL6132IR-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6132IR-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL6132IR-T part is unused and in its original packaging.
Return procedure for ISL6132IR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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