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Renesas ISL88002IH26Z-TK
- Part No.:
- ISL88002IH26Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88002IH26Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,606
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Product details
Overview
ISL88002IH26Z-TK from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with open-drain active-low reset output, 2.63V fixed threshold, ±1.2% accuracy, 160nA supply current, and 190ms power-on reset timeout - used to ensure reliable microprocessor startup and brownout protection in battery-powered systems.
For engineers reviewing the ISL88002IH26Z-TK datasheet, ISL88002IH26Z-TK pinout, ISL88002IH26Z-TK application, or ISL88002IH26Z-TK equivalent, key selection criteria include reset output type (open-drain), VDD trip point tolerance, minimum operating voltage (1V), thermal stability over –40°C to +85°C, and compatibility with SOT-23 footprint constraints.
Technical Context
The ISL88002IH26Z-TK implements a precision bandgap-based voltage reference comparator with built-in hysteresis (1%) to prevent noise-induced reset chatter during supply transients. Its POR circuit asserts reset at VDD = 1V and holds it for ≥140ms after VDD exceeds 2.63V.
It operates as a single-supply, single-threshold monitor with no external components required. The open-drain RST output requires an external pull-up resistor (5kΩ–100kΩ) and supports interfacing with multiple logic families including CMOS and TTL.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V nominal, ±1.2% accuracy ensures stable detection of 2.6V rail brownouts without false triggers. |
| Supply Current | 160nA typical at 1.8V enables multi-year operation in coin-cell-powered IoT sensors. |
| POR Timeout | 190ms typical delay guarantees µP/µC initialization completes before release from reset. |
| Operating Voltage | Valid down to VDD = 1V allows supervision during deep brownout or cold-start conditions. |
| Output Type | Open-drain active-low RST supports wired-OR configurations and mixed-voltage system interfacing. |
| Temperature Range | –40°C to +85°C industrial grade supports deployment in automotive cabin electronics and industrial controllers. |
| Hysteresis | 1% VTH provides noise immunity against supply ripple up to 26mV on the 2.63V rail. |
Pinout & Package
ISL88002IH26Z-TK is housed in a Pb-free 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), measuring 2.92mm × 1.30mm × 1.00mm with 0.95mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset logic; must be connected directly to system ground plane. |
| 2 | RST | Open-drain active-low reset output; requires external pull-up to host VDD or compatible logic rail. |
| 3 | VDD | Power supply input and monitored voltage source; supplies IC and serves as threshold reference input. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.63V threshold | Matches common 2.6V LDO outputs and low-voltage microcontrollers like ARM Cortex-M0+. |
| 160nA quiescent current | Enables >10-year battery life in always-on monitoring applications using CR2032 cells. |
| 1V minimum VDD operation | Permits reset assertion during severe undervoltage events where other supervisors fail silently. |
| No external components | Reduces BOM count and PCB area versus discrete RC-based reset circuits. |
| Immunity to supply transients | Internal filtering prevents false resets during switching regulator noise or ESD events. |
Applications
| Microprocessor Power-Up Control | Battery-Powered Sensor Node |
|---|---|
Use Scenario: Ensuring safe boot sequence for an ARM-based MCU powered by a 2.6V buck converter. IC Role / Device Role / Timing Role: Monitors VDD and asserts open-drain RST until 2.63V is sustained for 190ms, holding CPU in reset until power stabilizes. Use Value: Prevents corrupted firmware execution due to marginal supply voltage during startup. | Use Scenario: Long-life environmental sensor node powered by a CR2032 coin cell. IC Role / Device Role / Timing Role: Supervises 2.6V regulated rail and triggers system shutdown when voltage drops below 2.63V ±1.2%. Use Value: Extends usable battery life by avoiding premature shutdown while guaranteeing data integrity. |
| Industrial PLC I/O Module | Portable Medical Device |
Use Scenario: Protecting digital I/O drivers in a DIN-rail mounted controller exposed to 48V bus transients. IC Role / Device Role / Timing Role: Detects brownout on isolated 2.6V auxiliary rail and forces safe state via RST signal to FPGA configuration logic. Use Value: Eliminates spurious I/O toggling during line disturbances, meeting IEC 61000-4-4 compliance requirements. | Use Scenario: Supervising power to a low-power pulse oximeter ASIC operating from a 2.6V Li-ion cell. IC Role / Device Role / Timing Role: Provides 190ms POR and continuous 2.63V monitoring with <160nA drain to maximize runtime between charges. Use Value: Meets FDA Class II device reliability requirements for uninterrupted patient monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD26+T | 2.63V threshold, push-pull RST, 1.2µA supply current - 7.5× higher quiescent draw than ISL88002IH26Z-TK. | Not suitable for ultra-low-power designs requiring sub-µA sleep current. | Select only if push-pull output is mandatory and system can tolerate higher standby current. |
| TPS3808G26DBVR | 2.63V threshold, open-drain RST, 1.1µA supply current, adjustable delay - lacks 1V minimum VDD operation. | Cannot assert reset during deep brownout below 1.8V, limiting fault coverage. | Prefer for systems needing programmable timeout but not deep-undervoltage detection. |
Compared with MAX809TRD26+T and TPS3808G26DBVR, the ISL88002IH26Z-TK delivers superior ultra-low-power performance (160nA vs >1µA) and unique 1V POR capability - critical for energy-harvesting and long-life battery applications where every nanoamp and millivolt matters.
Availability
ISL88002IH26Z-TK is available at Aetrix Electronics and suitable for battery-powered medical devices, industrial sensor nodes, portable instrumentation, and microcontroller-based control systems requiring stable component supply across extended production lifecycles.
Supply support for ISL88002IH26Z-TK 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 delivering high-performance analog, power, and embedded processing solutions for automotive, industrial, and IoT markets.
The ISL88002IH26Z-TK belongs to Renesas' Ultra Low Power Voltage Supervisor family, engineered specifically for energy-constrained applications demanding nanoscale current draw, precise threshold accuracy, and robust operation across wide temperature ranges.
FAQ
What is the reset output configuration of the ISL88002IH26Z-TK?
The ISL88002IH26Z-TK features an open-drain, active-low reset output (RST). This requires an external pull-up resistor (typically 5kΩ–100kΩ) to interface with host logic. Unlike push-pull variants such as ISL88001 or ISL88003, this configuration supports wired-OR reset buses and mixed-voltage level translation - a key differentiator confirmed in the FN6174 datasheet Pin Descriptions section.
What is the exact voltage threshold and accuracy of the ISL88002IH26Z-TK?
The ISL88002IH26Z-TK has a nominal reset threshold of 2.63V with ±1.2% accuracy over –40°C to +85°C, as specified in the Electrical Specifications table of FN6174 Rev 3.00. At +25°C, the typical value is 2.630V with min/max bounds of 2.598V/2.662V. This precision enables reliable supervision of 2.6V rails without margin stacking.
Does the ISL88002IH26Z-TK support operation below 1.8V?
Yes - the ISL88002IH26Z-TK asserts reset down to VDD = 1V, as explicitly stated in the datasheet's Features and Absolute Maximum Ratings sections. This capability is critical for detecting deep brownout conditions where other supervisors (e.g., TPS3808 series) cease functioning below 1.8V, making ISL88002IH26Z-TK uniquely suited for ultra-low-voltage fault detection.
What package type and dimensions does the ISL88002IH26Z-TK use?
The ISL88002IH26Z-TK uses a Pb-free 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), with body dimensions of 2.92mm × 1.30mm × 1.00mm and 0.95mm lead pitch. This matches industry-standard SOT-23 footprints and is distinct from the SC-70 variant (e.g., ISL88002IE26Z-TK), confirming mechanical compatibility with existing SOT-23 assembly lines.
How does the power-on reset timeout of the ISL88002IH26Z-TK compare to similar supervisors?
The ISL88002IH26Z-TK provides a typical POR timeout of 190ms, falling within the 140–260ms range specified in FN6174. Figure 4 confirms ~155ms at +25°C with 5kΩ pull-up, and the datasheet states "190ms" as the representative value. This exceeds the 100–140ms delays of MAX809 variants and aligns with requirements for modern low-power MCUs needing extended initialization windows.
ISL88002IH26Z-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ISL88002IH26Z-TK FAQ
1.How can I place an order for ISL88002IH26Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IH26Z-TK 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 ISL88002IH26Z-TK reliable?
The price and inventory of ISL88002IH26Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IH26Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88002IH26Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IH26Z-TK transactions.
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4.How is shipping managed for ISL88002IH26Z-TK?
ISL88002IH26Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IH26Z-TK 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 ISL88002IH26Z-TK?
For technical support, including ISL88002IH26Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IH26Z-TK requirements.
6.How does Aetrix verify that ISL88002IH26Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88002IH26Z-TK 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 ISL88002IH26Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88002IH26Z-TK?
All ISL88002IH26Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IH26Z-TK, 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 ISL88002IH26Z-TK part is unused and in its original packaging.
Return procedure for ISL88002IH26Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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