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Renesas ISL88001IE26Z-T7A
- Part No.:
- ISL88001IE26Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88001IE26Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,580
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Product details
Overview
ISL88001IE26Z-T7A from Renesas Electronics is an ultra-low-power 3-pin voltage supervisor IC with a fixed 2.63V reset threshold, 160nA supply current, ±1.2% threshold accuracy, and 190ms power-on reset timeout. It features a push-pull active-low RST output and operates over -40°C to +85°C in SC-70 packaging, used for reliable power-up sequencing and brownout protection in microcontroller-based embedded systems.
For engineers reviewing the ISL88001IE26Z-T7A datasheet, ISL88001IE26Z-T7A pinout, ISL88001IE26Z-T7A application, or ISL88001IE26Z-T7A equivalent, key selection criteria include its precise 2.63V trip point, sub-200ms POR delay, SC-70 footprint compatibility, and immunity to supply transients in space-constrained battery-powered designs.
Technical Context
The ISL88001IE26Z-T7A implements a precision bandgap reference and comparator architecture to monitor VDD against a factory-trimmed 2.63V threshold with ±1.2% accuracy across temperature. Its internal POR circuit asserts reset at VDD ≥ 1V and holds RST low for 190ms after VDD exceeds threshold.
This device uses a single-supply topology where VDD serves as both power input and monitored rail. The push-pull RST output drives actively high/low without external pull-up, eliminating BOM cost and layout overhead while ensuring clean reset assertion during brownouts and power cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V ±1.2% - ensures reliable detection of 2.6V nominal supply collapse with minimal false triggering. |
| Supply Current | 160nA typical - enables multi-year operation on coin-cell batteries in always-on monitoring applications. |
| POR Timeout | 190ms - guarantees sufficient stabilization time for microcontrollers and FPGAs before release from reset. |
| Operating Voltage Range | 1.8V to 5.5V - supports direct connection to 1.8V, 2.5V, 3.3V, and 5V rails without level-shifting. |
| Reset Output Type | Push-pull active-low - eliminates need for external pull-up resistor and reduces PCB area and component count. |
| Temperature Range | -40°C to +85°C - qualified for industrial-grade embedded systems including portable instrumentation and controllers. |
| Package | 3-lead SC-70 (P3.049) - 2.0mm × 1.25mm footprint ideal for compact wearable and IoT sensor nodes. |
Pinout & Package
ISL88001IE26Z-T7A is housed in a Pb-free 3-lead SC-70 package (JEDEC MO-203AA, Renesas drawing P3.049), measuring 2.0mm × 1.25mm × 0.95mm with gull-wing leads.
| 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 operation. |
| 2 | RST | Active-low push-pull reset output; sinks current when asserted (RST = LOW), sources current when released (RST = HIGH). |
| 3 | VDD | Power supply input and monitored voltage rail; supplies internal circuitry and provides input to voltage sense comparator. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.63V threshold | Enables precise supervision of 2.6V LDO outputs or partially discharged Li-ion battery rails without trimming components. |
| 160nA supply current | Reduces quiescent power draw by >90% versus legacy supervisors, extending battery life in maintenance-free edge sensors. |
| 190ms POR timeout | Matches typical MCU boot timing requirements, eliminating need for external RC timing networks. |
| Reset valid down to VDD = 1V | Ensures fail-safe reset assertion even during deep brownout conditions where other supervisors lose functionality. |
| SC-70 package | Provides 40% smaller footprint than SOT-23-3, enabling placement adjacent to µC reset pins in ultra-dense layouts. |
Applications
| Microprocessor Power Sequencing | Portable Medical Sensors |
|---|---|
Use Scenario: Ensuring safe startup of ARM Cortex-M microcontrollers powered by low-noise 2.6V LDOs in handheld diagnostic devices. IC Role / Device Role: Voltage supervisor providing power-on reset and brownout detection on the 2.6V core rail. Use Value: Prevents erratic MCU behavior during battery voltage sag by asserting reset below 2.597V with ±1.2% tolerance. | Use Scenario: Continuous monitoring of coin-cell–powered glucose meters operating across -20°C to +60°C ambient. IC Role / Device Role: Ultra-low-power supervisor maintaining reset integrity while consuming only 160nA from CR2032. Use Value: Enables >5-year shelf life and field operation without recalibration due to stable 2.63V threshold and <0.48mV/°C drift. |
| Industrial Controller Watchdog | Smart Energy Metering |
Use Scenario: Supervising auxiliary 2.6V supply in DIN-rail PLC I/O modules exposed to 85°C cabinet temperatures. IC Role / Device Role: Reset generator with guaranteed operation from -40°C to +85°C and immunity to EFT bursts. Use Value: Maintains ±1.2% threshold accuracy across full temperature range, preventing spurious resets during thermal cycling. | Use Scenario: Monitoring backup supercapacitor voltage in AMI smart meters during main power loss events. IC Role / Device Role: Brownout detector asserting reset when supercap voltage falls below 2.63V during discharge. Use Value: Push-pull RST output drives meter's µC reset pin directly-no pull-up required-reducing BOM and improving noise margin. |
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, SOT-23-3, 1.6µA supply current, 240ms POR | Higher quiescent current limits battery life; larger SOT-23 footprint increases board area | Select when legacy MAX809 compatibility is required and power budget allows >10× higher IDD. |
| TPS3808G12QDBVRQ1 | 1.2V threshold (not 2.63V), adjustable via external resistor, 1.1µA IDD, automotive AEC-Q100 qualified | Requires external resistor network for 2.63V setting; not drop-in; designed for automotive, not industrial temp range | Choose only if AEC-Q100 qualification is mandatory and design can accommodate external components and higher current. |
Compared with MAX809SEUR+T and TPS3808G12QDBVRQ1, the ISL88001IE26Z-T7A delivers 10× lower supply current and SC-70 size advantage for space-limited industrial designs, while avoiding external components and maintaining exact 2.63V trip without calibration.
Availability
ISL88001IE26Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical sensors, industrial controller watchdog functions, and smart energy metering requiring stable component supply and long-term lifecycle support.
Supply support for ISL88001IE26Z-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 analog, mixed-signal, and embedded processing solutions for industrial, automotive, and infrastructure markets.
The ISL88001 series belongs to Renesas' ultra-low-power voltage supervisor product line, engineered specifically for battery-operated and space-constrained embedded systems requiring precise, low-current power monitoring with minimal external components.
FAQ
What is the reset threshold voltage of the ISL88001IE26Z-T7A?
The ISL88001IE26Z-T7A has a factory-trimmed fixed reset threshold of 2.63V with ±1.2% accuracy over -40°C to +85°C. This value is confirmed in the "Ordering Information" table (page 3) and Electrical Specifications (page 8) of FN6174 Rev 3.00, where VTHVDD for ISL88001IE26Z variants is specified as 2.63V nominal with min/max bounds of 2.559V/2.701V.
Does the ISL88001IE26Z-T7A require an external pull-up resistor on the RST pin?
No, the ISL88001IE26Z-T7A does not require an external pull-up resistor because it features a push-pull RST output. As stated in the Pin Descriptions (page 2) and Functional Block Diagrams (page 2), the ISL88001 variant drives RST actively high or low, unlike open-drain alternatives such as the ISL88002 that require external pull-up networks.
What is the power-on reset timeout duration for the ISL88001IE26Z-T7A?
The ISL88001IE26Z-T7A provides a 190ms power-on reset timeout (tPOR), as documented in the Features section (page 1) and Electrical Specifications table (page 9) of FN6174 Rev 3.00. This value falls within the 140ms to 260ms guaranteed range and matches the typical 144ms measurement shown in Figure 3.
Is the ISL88001IE26Z-T7A compatible with lead-free reflow processes?
Yes, the ISL88001IE26Z-T7A is Pb-free and RoHS compliant, using NiPdAu plate-e4 termination finish. Its Pb-Free Reflow Profile complies with IPC/JEDEC J-STD-020, and thermal resistance data (θJA = 640°C/W for SC-70) confirms suitability for standard lead-free reflow profiles per TB493, as noted in the Ordering Information (page 3) and Absolute Maximum Ratings (page 8).
Can the ISL88001IE26Z-T7A monitor supply voltages below 1.8V?
No, the ISL88001IE26Z-T7A is not rated for monitoring voltages below 1.8V. Per the Electrical Specifications table (page 8), the minimum VDD supply voltage is 1.8V for 2.63V threshold variants. Although reset remains valid down to VDD = 1V, the device itself requires ≥1.8V to operate correctly and maintain specification compliance.
ISL88001IE26Z-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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:
- SC-70-3
ISL88001IE26Z-T7A FAQ
1.How can I place an order for ISL88001IE26Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IE26Z-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 ISL88001IE26Z-T7A reliable?
The price and inventory of ISL88001IE26Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IE26Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88001IE26Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IE26Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IE26Z-T7A?
ISL88001IE26Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IE26Z-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 ISL88001IE26Z-T7A?
For technical support, including ISL88001IE26Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IE26Z-T7A requirements.
6.How does Aetrix verify that ISL88001IE26Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88001IE26Z-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 ISL88001IE26Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88001IE26Z-T7A?
All ISL88001IE26Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IE26Z-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 ISL88001IE26Z-T7A part is unused and in its original packaging.
Return procedure for ISL88001IE26Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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