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Renesas ISL88001IH26Z-T7A
- Part No.:
- ISL88001IH26Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88001IH26Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,225
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Product details
Overview
ISL88001IH26Z-T7A from Renesas is an ultra-low-power 3-lead voltage supervisor IC with push-pull active-low reset output, 2.63V fixed threshold, ±1.2% accuracy, 190ms power-on reset timeout, and operation down to VDD = 1V. It monitors single-supply rails in microcontroller systems and portable equipment requiring reliable brownout detection and minimal quiescent current.
For engineers reviewing the ISL88001IH26Z-T7A datasheet, ISL88001IH26Z-T7A pinout, ISL88001IH26Z-T7A application, or ISL88001IH26Z-T7A equivalent, key selection criteria include reset threshold tolerance, supply current at low VDD, reset assertion timing under brownout, and compatibility with SOT-23 footprint constraints in space-constrained designs.
Technical Context
The ISL88001IH26Z-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 for a guaranteed 140–260ms timeout after VDD exceeds 2.63V.
It operates exclusively in push-pull mode (not open-drain), delivering active-low RST with VOL ≤ 0.4V at 0.5mA sink and VOH ≥ VDD − 0.4V when deasserted. No external components are required, and the device remains functional across −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V nominal, ±1.2% accuracy ensures reliable detection of 2.63V rail collapse without false triggers. |
| Supply Current | 160nA typical at 1.8V VDD enables multi-year battery life in always-on monitoring applications. |
| POR Timeout | 190ms typical tPOR guarantees sufficient stabilization time for microcontrollers before release from reset. |
| Minimum Operating VDD | 1V valid reset assertion allows supervision during deep brownout or ultra-low-voltage startup sequences. |
| Output Type | Push-pull active-low RST eliminates need for external pull-up resistor, reducing BOM count and layout area. |
| Package | 3-lead SOT-23 (Pb-free, RoHS compliant) provides industry-standard footprint with 590°C/W θJA thermal resistance. |
| Temperature Range | −40°C to +85°C industrial grade supports deployment in embedded controllers and portable instrumentation. |
Pinout & Package
ISL88001IH26Z-T7A is housed in a 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), with 0.95mm lead pitch, 2.92mm × 1.30mm body size, and 1.00mm height. Pin 1 = GND, Pin 2 = RST (active-low push-pull), Pin 3 = VDD (monitored supply input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | IC substrate and comparator reference node; must be connected to system ground plane for accurate threshold sensing. |
| 2 (RST) | Active-low reset output | Push-pull driver asserts LOW (≤0.4V) when VDD < 2.63V; releases HIGH (≥VDD−0.4V) after tPOR when VDD > 2.63V. |
| 3 (VDD) | Supply input & monitored rail | Single terminal serves as both power source and analog input; voltage here is compared against internal 2.63V reference. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.63V threshold | Factory-trimmed for ±1.2% accuracy across temperature, eliminating calibration overhead in production. |
| 160nA supply current | Enables direct connection to battery-backed rails without measurable drain impact over years of standby. |
| 1V minimum VDD operation | Ensures reset assertion remains valid even during severe undervoltage events below 1.8V logic thresholds. |
| No external components | Reduces PCB area by >1mm² versus discrete supervisor solutions and eliminates component sourcing risk. |
| SOT-23 footprint compatibility | Direct drop-in replacement for legacy 3-lead supervisors (e.g., MAX809 variants) without layout revision. |
Applications
| Microcontroller Power-Up Sequencing | Portable Medical Sensor Node |
|---|---|
Use Scenario: Ensuring clean boot of ARM Cortex-M0+ MCU after Li-ion battery wake-up from deep sleep. IC Role / Device Role / Timing Role: Voltage supervisor providing POR and brownout reset to MCU's nRESET pin. Use Value: 190ms tPOR prevents execution before LDO output stabilizes; 160nA IDD extends battery life beyond 5 years in sleep mode. |
Use Scenario: Monitoring regulated 2.6V rail powering ECG front-end and BLE SoC in wearable patch. IC Role / Device Role / Timing Role: Single-rail supervisor asserting reset if battery sag drops rail below 2.63V during transmit burst. Use Value: ±1.2% threshold accuracy avoids premature shutdown at 2.57V while guaranteeing reset at 2.60V under load. |
| Industrial PLC I/O Module | Smart Energy Meter MCU Subsystem |
Use Scenario: Supervising isolated 3.3V auxiliary supply feeding FPGA configuration memory and ADC reference. IC Role / Device Role / Timing Role: Reset generator holding FPGA in reset until 3.3V rail settles post-isolator startup. Use Value: Push-pull RST eliminates external pull-up, reducing component count and improving noise immunity on long PCB traces. |
Use Scenario: Detecting brownout on 2.6V RTC backup rail during main AC failure in metering SoC. IC Role / Device Role / Timing Role: Low-current supervisor maintaining reset state until backup rail recovers above 2.63V. Use Value: Valid reset assertion down to VDD = 1V ensures fail-safe behavior even as supercapacitor discharges to 1.2V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | 2.63V threshold, ±1.5% accuracy, 1.2µA IDD, SOT-23-3 package | Higher supply current limits use in multi-year battery applications; same pinout but requires verification of reset timing compatibility. | Select when legacy MAX809 qualification is mandated and 1.2µA IDD is acceptable. |
| TPS3801K26DBVR | 2.63V threshold, ±0.5% accuracy, 1.8µA IDD, SOT-23-3, active-low push-pull | Higher accuracy and faster tPOR (200ms min) but 11× higher current; not suitable for ultra-low-power designs. | Choose when tighter threshold tolerance is critical and system can accommodate higher quiescent draw. |
Compared with MAX809SEUR+T and TPS3801K26DBVR, the ISL88001IH26Z-T7A delivers the lowest supply current (160nA vs µA-range) while maintaining full SOT-23 compatibility and industrial temperature range-making it optimal for energy-harvesting and long-life battery systems where every nanoamp matters.
Availability
ISL88001IH26Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical sensor nodes, and industrial PLC I/O modules requiring stable component supply with guaranteed long-term availability.
Supply support for ISL88001IH26Z-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 specializing in microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and IoT markets.
The ISL88001IH26Z-T7A belongs to Renesas' ultra-low-power voltage supervisor family, designed specifically for battery-powered and energy-constrained embedded systems needing precise, low-current rail monitoring.
FAQ
What is the exact reset threshold voltage of the ISL88001IH26Z-T7A and how tightly is it specified?
The ISL88001IH26Z-T7A has a nominal reset threshold of 2.63V, with guaranteed accuracy of ±1.2% over the full −40°C to +85°C operating range. At +25°C, the typical threshold is 2.630V, bounded between 2.598V (min) and 2.662V (max); this tight tolerance ensures robust detection of 2.63V rail failures without false resets due to process or temperature drift.
Does the ISL88001IH26Z-T7A require any external components to function?
No, the ISL88001IH26Z-T7A requires zero external components. Its push-pull RST output eliminates the need for a pull-up resistor, and its internal voltage reference and POR circuit operate autonomously from the single VDD pin. This simplifies design, reduces BOM cost, and improves reliability in high-density layouts.
Can the ISL88001IH26Z-T7A assert reset when the supply voltage drops below 1.8V?
Yes-the ISL88001IH26Z-T7A guarantees valid reset assertion down to VDD = 1V, well below standard 1.8V logic thresholds. This capability ensures fail-safe behavior during deep brownouts, such as those occurring in battery-powered devices nearing end-of-life or under heavy transient loads.
What is the power-on reset timeout duration for the ISL88001IH26Z-T7A?
The ISL88001IH26Z-T7A features a typical power-on reset timeout (tPOR) of 190ms, with a guaranteed range of 140ms to 260ms across temperature and voltage. This interval ensures microcontrollers and FPGAs have sufficient time to stabilize clocks and initialize registers before release from reset.
Is the ISL88001IH26Z-T7A pin-compatible with common legacy supervisors like the MAX809 series?
Yes-the ISL88001IH26Z-T7A uses the standard 3-lead SOT-23 footprint and pinout (GND–RST–VDD), matching MAX809, MAX810, and similar parts. Its push-pull active-low RST output behaves identically, enabling direct replacement without PCB modification-provided the 2.63V threshold meets system requirements.
ISL88001IH26Z-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:
- Push-Pull, Totem Pole
- 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
ISL88001IH26Z-T7A FAQ
1.How can I place an order for ISL88001IH26Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IH26Z-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 ISL88001IH26Z-T7A reliable?
The price and inventory of ISL88001IH26Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IH26Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88001IH26Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IH26Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IH26Z-T7A?
ISL88001IH26Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IH26Z-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 ISL88001IH26Z-T7A?
For technical support, including ISL88001IH26Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IH26Z-T7A requirements.
6.How does Aetrix verify that ISL88001IH26Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88001IH26Z-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 ISL88001IH26Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88001IH26Z-T7A?
All ISL88001IH26Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IH26Z-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 ISL88001IH26Z-T7A part is unused and in its original packaging.
Return procedure for ISL88001IH26Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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