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Renesas ISL88002IH26Z-T7A
- Part No.:
- ISL88002IH26Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88002IH26Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,973
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Product details
Overview
ISL88002IH26Z-T7A from Renesas Electronics is an ultra-low-power open-drain voltage supervisor IC designed for power-on reset and supply voltage monitoring in space-constrained systems. It features a fixed 2.63V threshold with ±1.2% accuracy, 160nA supply current at 1.8V, 190ms power-on reset timeout, and valid reset assertion down to VDD = 1V - enabling reliable operation in battery-powered microcontroller systems.
For engineers reviewing the ISL88002IH26Z-T7A datasheet, ISL88002IH26Z-T7A pinout, ISL88002IH26Z-T7A application, or ISL88002IH26Z-T7A equivalent, key selection criteria include its SOT-23-3 open-drain output configuration, industrial temperature range (–40°C to +85°C), RoHS-compliant Pb-free packaging, and compatibility with low-voltage 2.5V/3.3V rails requiring precise brownout detection.
Technical Context
The ISL88002IH26Z-T7A implements a precision bandgap-based voltage reference comparator with internal hysteresis to prevent noise-induced reset chatter. Its POR circuit asserts reset at VDD ≥ 1V and holds it until VDD exceeds 2.63V for ≥190ms, ensuring stable initialization of downstream logic.
As an open-drain RST output device, it requires an external pull-up resistor (5kΩ–100kΩ) and interfaces directly with µP/µC reset inputs. It operates across 1.8V–5.5V supply range but maintains full functionality-including accurate threshold sensing and reset timing-down to VDD = 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V ±1.2% - ensures accurate brownout detection for 2.5V logic rails with minimal tolerance drift over temperature. |
| Supply Current | 160nA at 1.8V - enables multi-year battery life in always-on portable instrumentation and IoT edge nodes. |
| POR Timeout | 190ms typical - guarantees sufficient stabilization time for microcontrollers and FPGAs before release from reset. |
| Reset Valid Down To | VDD = 1V - supports robust reset assertion during deep brownout or ultra-low-power wake-up sequences. |
| Output Type | Open-drain RST - allows wired-OR reset bus sharing and flexible voltage-level translation via external pull-up. |
| Operating Temp | –40°C to +85°C - qualified for industrial and automotive cabin applications without derating. |
| Package | 3-lead SOT-23 - footprint-compatible with legacy supervisory ICs and optimized for high-density PCB layouts. |
Pinout & Package
ISL88002IH26Z-T7A 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. The package supports standard SnPb and Pb-free reflow profiles per IPC/JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset logic; must be connected to system ground plane for stable threshold accuracy. |
| 2 | RST | Active-low open-drain reset output; requires external pull-up resistor (5kΩ–100kΩ) to VDD or another logic rail. |
| 3 | VDD | Power supply input and monitored voltage source; supplies IC bias and serves as the sensed rail for 2.63V threshold detection. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 160nA at 1.8V - reduces standby power in battery-backed real-time clocks and sensor nodes by >95% vs. legacy supervisors. |
| ±1.2% threshold accuracy | Guaranteed over –40°C to +85°C - eliminates need for external calibration in industrial control modules. |
| No external components required | Self-contained reset generation with integrated POR and hysteresis - reduces BOM count and layout area vs. discrete RC solutions. |
| Immunity to power-supply transients | Internal filtering and hysteresis reject <10µs glitches - prevents spurious resets during switching regulator noise or ESD events. |
| Pb-free SOT-23 package | RoHS-compliant matte tin (e3) termination - compatible with lead-free assembly and meets IPC/JEDEC MSL-1 reflow requirements. |
Applications
| Microprocessor Power Sequencing | Portable Medical Sensors |
|---|---|
|
Use Scenario: Ensuring clean boot of ARM Cortex-M0+ MCU in handheld glucose meter after coin-cell power-up. IC Role / Device Role / Timing Role: Voltage supervisor providing 190ms POR delay and 2.63V brownout detection on 3.0V LDO output. Use Value: Prevents firmware execution under marginal voltage, eliminating corrupted EEPROM writes and false diagnostic readings. |
Use Scenario: Monitoring 2.5V rail powering ultra-low-power analog front-end in wearable ECG patch. IC Role / Device Role / Timing Role: Open-drain RST output tied to µC reset pin with 5.1kΩ pull-up to same 2.5V rail. Use Value: 160nA supply current extends single CR2032 battery life beyond 3 years in continuous-sleep mode. |
| Industrial PLC I/O Modules | Smart Meter Communication Subsystems |
|
Use Scenario: Supervising isolated 3.3V supply feeding RS-485 transceiver in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Detecting undervoltage on secondary-side DC/DC output; asserting reset to safeguard UART communication state. Use Value: ±1.2% threshold accuracy ensures consistent trip point across –40°C to +70°C ambient without recalibration. |
Use Scenario: Brownout protection for NB-IoT modem powered from 2.8V buck converter in electricity meter. IC Role / Device Role / Timing Role: Reset generator holding modem in reset until 2.63V rail stabilizes post-power-cycle, preventing RF transmission errors. Use Value: Valid reset assertion down to VDD = 1V enables fail-safe shutdown during rapid AC line dropout events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SUR+T | 2.93V fixed threshold, 1.2µA supply current, SOT-23-3 push-pull output | Higher current draw limits use in multi-year battery applications; push-pull eliminates need for external pull-up | Select when system requires active-high reset and higher threshold tolerance is acceptable |
| TPS3808G125DBVR | 1.25V adjustable threshold via external resistor divider, 1.1µA supply current, SOT-23-6 | Requires two external resistors and larger footprint; supports custom thresholds not available in ISL88002 family | Select when design requires non-standard trip points (e.g., 1.85V) and board space permits 6-pin package |
Compared with MAX809SUR+T and TPS3808G125DBVR, the ISL88002IH26Z-T7A delivers 7× lower quiescent current and factory-trimmed 2.63V accuracy in a pin-compatible 3-lead SOT-23, making it optimal for long-life, low-voltage brownout detection where minimal BOM and layout area are critical.
Availability
ISL88002IH26Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical sensors, industrial PLC I/O modules, smart meter communication subsystems, and battery-powered instrumentation requiring stable component supply across extended product lifecycles.
Supply support for ISL88002IH26Z-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 is a global semiconductor leader delivering high-performance, low-power analog and mixed-signal solutions for industrial, automotive, and IoT applications.
The ISL88002IH26Z-T7A belongs to Renesas' ultra-low-power voltage supervisor family, engineered specifically for reliable power-on reset and brownout protection in space- and energy-constrained embedded systems.
FAQ
What is the reset output configuration of the ISL88002IH26Z-T7A?
The ISL88002IH26Z-T7A features an active-low open-drain RST output. This requires an external pull-up resistor (typically 5kΩ–100kΩ) to VDD or another logic rail. Unlike push-pull variants such as ISL88001 or ISL88003, it does not drive high internally - enabling wired-OR reset buses and level-shifting flexibility in multi-rail systems.
Does the ISL88002IH26Z-T7A require external components to operate?
No, the ISL88002IH26Z-T7A operates autonomously with only three connections: VDD, GND, and RST. While an external pull-up resistor is mandatory for the open-drain RST output, no capacitors, resistors, or trimming components are needed for threshold setting, timing, or hysteresis - all functions are fully integrated within the ISL88002IH26Z-T7A die.
What is the minimum supply voltage at which the ISL88002IH26Z-T7A asserts reset?
The ISL88002IH26Z-T7A asserts reset whenever VDD falls below its 2.63V threshold, and the reset signal remains valid down to VDD = 1V. This means the IC continues to monitor and assert RST even during severe brownout conditions - a critical capability for fail-safe shutdown in battery-powered devices where voltage may sag below nominal levels before complete discharge.
Is the ISL88002IH26Z-T7A pin-compatible with other members of the ISL8800x family?
Yes, the ISL88002IH26Z-T7A shares identical 3-lead SOT-23 pinout and footprint with all ISL88001/ISL88002/ISL88003 variants in the same package - including ISL88001IH26Z-T7A (push-pull) and ISL88003IH26Z-T7A (push-pull active-high). This allows direct substitution in existing layouts when changing reset polarity or output type, provided external pull-up is added for ISL88002IH26Z-T7A.
What is the temperature coefficient of the voltage threshold for the ISL88002IH26Z-T7A?
The ISL88002IH26Z-T7A has a voltage threshold temperature coefficient of 0.48mV/°C, measured across –40°C to +85°C. This low drift ensures stable 2.63V trip point performance in industrial environments - for example, threshold variation remains within ±20mV over the full temperature range, supporting designs that cannot tolerate recalibration or software compensation.
ISL88002IH26Z-T7A 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-T7A FAQ
1.How can I place an order for ISL88002IH26Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IH26Z-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 ISL88002IH26Z-T7A reliable?
The price and inventory of ISL88002IH26Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IH26Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88002IH26Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IH26Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IH26Z-T7A?
ISL88002IH26Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IH26Z-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 ISL88002IH26Z-T7A?
For technical support, including ISL88002IH26Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IH26Z-T7A requirements.
6.How does Aetrix verify that ISL88002IH26Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88002IH26Z-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 ISL88002IH26Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88002IH26Z-T7A?
All ISL88002IH26Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IH26Z-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 ISL88002IH26Z-T7A part is unused and in its original packaging.
Return procedure for ISL88002IH26Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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