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Renesas ISL88011IH526Z-T7A
- Part No.:
- ISL88011IH526Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL88011IH526Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,339
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Product details
Overview
ISL88011IH526Z-T7A from Renesas (formerly Intersil) is a 5-lead SOT-23 voltage supervisor IC with fixed 2.63 V VDD trip threshold, active-low and active-high reset outputs, adjustable POR timeout via external capacitor, manual reset input, and operation down to VDD = 1 V. It delivers ±1.5% threshold accuracy over –40°C to +85°C and consumes only 5.5 µA typical supply current, serving as a critical power-on reset and brownout detector in microprocessor-based embedded systems.
For engineers reviewing the ISL88011IH526Z-T7A datasheet, ISL88011IH526Z-T7A pinout, ISL88011IH526Z-T7A application, or ISL88011IH526Z-T7A equivalent, key selection considerations include its fixed 2.63 V VDD monitoring threshold, dual RST/RST outputs, CPOR-adjustable 200 ms nominal POR delay, manual reset capability, and ultra-low quiescent current for battery-sensitive designs.
Technical Context
The ISL88011IH526Z-T7A implements a precision bandgap-based voltage reference comparator with hysteresis (26 mV at 2.63 V) to detect VDD drops below 2.63 V. Its internal POR circuit activates upon VDD ≥ 1 V and holds reset asserted until VDD exceeds 2.63 V for ≥200 ms (adjustable via CPOR capacitor).
It integrates complementary push-pull (RST) and open-drain (RST/MR) reset outputs, enabling direct interface with both high- and low-active logic domains. The MR function provides debounced active-low manual reset assertion with <100 mV threshold and 1 µs minimum pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Trip Threshold | 2.63 V ±1.5% - factory-programmed fixed threshold for reliable 2.6 V rail supervision |
| POR Timeout (nominal) | 200–250 ms - ensures stable power-up before releasing reset; extended via CPOR capacitor |
| Supply Current | 5.5 µA typical at 5 V - enables use in always-on, low-power monitoring circuits |
| Reset Valid Down To | VDD = 1 V - guarantees reset assertion during deep brownout conditions |
| Output Types | Complementary RST (push-pull high) and RST/MR (open-drain low) - supports mixed-logic system interfacing |
| Hysteresis | 26 mV at 2.63 V - prevents noise-induced false resets on marginal supply rails |
| Operating Temp Range | –40°C to +85°C - qualified for industrial-grade embedded control environments |
Pinout & Package
Package: 5-lead SOT-23 (Pb-free, RoHS compliant), 2.80 mm × 1.60 mm × 1.10 mm body, 0.95 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST/MR | Combined active-low reset output & manual reset input | Open-drain output pulled low during reset; accepts debounced active-low MR signal ≤100 mV |
| 2 - GND | Ground reference | Common return for all internal comparators, POR, and reset drivers |
| 3 - RST | Active-high push-pull reset output | Drives high (≈VDD) when not in reset; sinks current when asserting reset |
| 4 - VDD | Supply voltage and monitored input | Power source and primary voltage sense node; trip point = 2.63 V |
| 5 - CPOR | Capacitive POR timeout adjustment input | Connects external capacitor to ground to extend tPOR beyond 200 ms (e.g., 30 pF → ~2.5 s) |
Key Features
| Feature | Design Value |
|---|---|
| Dual active reset outputs | RST (push-pull high) and RST/MR (open-drain low) eliminate need for external level-shifting or pull-ups |
| Adjustable Power-On Reset | CPOR pin enables precise POR timeout tuning from 200 ms to seconds using a single capacitor |
| Ultra-low supply current | 5.5 µA typical allows continuous monitoring in energy-constrained battery-backed systems |
| High-accuracy fixed threshold | ±1.5% VTH over temperature ensures consistent 2.63 V detection without calibration |
| Robust manual reset interface | Debounced MR input with 1 µs minimum pulse width tolerates mechanical switch bounce |
Applications
| Industrial PLC I/O Module | Medical Infusion Pump Controller |
|---|---|
Use Scenario: Monitors 2.6 V auxiliary supply powering FPGA configuration and real-time clock. IC Role / Device Role / Timing Role: Voltage supervisor ensuring clean power-up sequence and brownout protection for safety-critical logic. Use Value: Prevents FPGA misconfiguration and RTC corruption by holding reset until 2.63 V rail stabilizes for ≥200 ms. |
Use Scenario: Supervises 2.6 V microcontroller core supply in battery-operated infusion device. IC Role / Device Role / Timing Role: Low-current reset generator maintaining system integrity during battery voltage sag. Use Value: 5.5 µA quiescent current extends battery life; reset valid down to 1 V avoids premature shutdown during transient dips. |
| Automotive Body Control Module | Smart Energy Meter MCU |
Use Scenario: Validates 2.6 V CAN transceiver bias rail before enabling communication stack. IC Role / Device Role / Timing Role: Fixed-threshold supervisor providing deterministic POR timing for automotive-grade startup. Use Value: ±1.5% VTH accuracy ensures compliance with AEC-Q100 Class 2 voltage margin requirements. |
Use Scenario: Guards 2.6 V metering SoC supply against grid-induced brownouts during peak load events. IC Role / Device Role / Timing Role: Dual-output supervisor interfacing with both SoC reset pin and external fault LED driver. Use Value: Complementary RST/RST outputs simplify PCB routing and reduce component count vs. discrete inverters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT26D3+ | Fixed 2.63 V threshold, 200 ms POR, SOT-23-5, but only single active-low reset output (no RST) | Lacks complementary reset outputs; requires external inverter for active-high reset | Choose when board space permits added logic and only one reset polarity is needed |
| TPS3808G125DBVR | Adjustable threshold (via resistor divider), 200 ms POR, SOT-23-5, 1.6 µA IQ, but no active-high RST output | Requires external components to set 2.63 V trip point; lacks push-pull RST for direct MCU interface | Prefer when threshold flexibility outweighs need for dual outputs and lowest possible IQ |
Compared with MAX6326UT26D3+ and TPS3808G125DBVR, the ISL88011IH526Z-T7A uniquely delivers both RST and RST outputs in a fixed-threshold part, eliminating external components while maintaining ultra-low 5.5 µA supply current and guaranteed 1 V operation.
Availability
ISL88011IH526Z-T7A is available at Aetrix Electronics and suitable for industrial PLC I/O modules, medical infusion pump controllers, automotive body control units, smart energy meters, and other embedded systems requiring stable component supply with long-term lifecycle support.
Supply support for ISL88011IH526Z-T7A 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 Corporation is a global semiconductor leader delivering high-performance analog, power management, and embedded processing solutions for industrial, automotive, and infrastructure markets.
The ISL88011IH526Z-T7A belongs to Renesas' legacy Intersil voltage supervisor family, engineered specifically for low-power, high-accuracy power-on reset and brownout detection in space-constrained embedded systems.
FAQ
What is the exact VDD voltage trip threshold for ISL88011IH526Z-T7A?
The ISL88011IH526Z-T7A has a factory-programmed fixed VDD trip threshold of 2.63 V, specified with ±1.5% accuracy across –40°C to +85°C. This value is confirmed in the Ordering Information table (Page 3) and Electrical Specifications (Page 6) of FN8093 Rev 5.00, where VTHVDD = 2.59 V (min), 2.63 V (typ), 2.67 V (max) for the IH526 variant.
Does ISL88011IH526Z-T7A support adjustable POR timeout, and how is it implemented?
Yes, ISL88011IH526Z-T7A supports adjustable POR timeout via the CPOR pin. Connecting an external capacitor between CPOR and GND extends the nominal 200–250 ms timeout - for example, a 30 pF capacitor increases tPOR to approximately 2.5 s. This behavior is documented in Figure 3 (Page 9) and Principles of Operation (Page 9) of FN8093 Rev 5.00.
What are the reset output configurations available on ISL88011IH526Z-T7A?
The ISL88011IH526Z-T7A provides two complementary reset outputs: RST (active-high, push-pull) and RST/MR (active-low, open-drain). This dual-output architecture allows direct connection to MCUs requiring either reset polarity without external logic. Pin functionality is defined in the Pin Descriptions table (Page 5) and Functional Block Diagram (Page 4) of FN8093 Rev 5.00.
Can ISL88011IH526Z-T7A monitor a secondary voltage like VMON?
No, ISL88011IH526Z-T7A does not support secondary voltage monitoring. It is a single-supply supervisor monitoring only VDD. The VMON pin is absent in the ISL88011 pinout (Page 2); VMON functionality is exclusive to ISL88012, ISL88014, and ISL88015 variants per the Product Features Table (Page 5) and Pin Descriptions (Page 5).
What is the minimum operating voltage at which ISL88011IH526Z-T7A asserts reset?
The ISL88011IH526Z-T7A asserts reset whenever VDD falls below its 2.63 V trip threshold, and crucially, the reset signal remains valid down to VDD = 1 V - meaning the internal circuitry continues functioning and driving outputs correctly even during severe brownout. This specification is explicitly stated in the Features list (Page 1) and Electrical Specifications (Page 6) of FN8093 Rev 5.00.
ISL88011IH526Z-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Open Drain, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 200ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SOT
ISL88011IH526Z-T7A FAQ
1.How can I place an order for ISL88011IH526Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88011IH526Z-T7A 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 ISL88011IH526Z-T7A reliable?
The price and inventory of ISL88011IH526Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88011IH526Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88011IH526Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88011IH526Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88011IH526Z-T7A?
ISL88011IH526Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88011IH526Z-T7A 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 ISL88011IH526Z-T7A?
For technical support, including ISL88011IH526Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88011IH526Z-T7A requirements.
6.How does Aetrix verify that ISL88011IH526Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88011IH526Z-T7A 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 ISL88011IH526Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88011IH526Z-T7A?
All ISL88011IH526Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88011IH526Z-T7A, 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 ISL88011IH526Z-T7A part is unused and in its original packaging.
Return procedure for ISL88011IH526Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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