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Renesas ISL88001IE31Z-T
- Part No.:
- ISL88001IE31Z-T
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88001IE31Z-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,913
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Product details
Overview
ISL88001IE31Z-T from Renesas Electronics is an ultra-low-power 3-pin voltage supervisor IC with push-pull active-low reset output, fixed 3.07V threshold (±1.2% accuracy), 160nA supply current at 1.8V, and 190ms power-on reset timeout. It monitors VDD in microcontroller systems where reliable brownout detection and low-quiescent-current supervision are required.
For engineers reviewing the ISL88001IE31Z-T datasheet, ISL88001IE31Z-T pinout, ISL88001IE31Z-T application, or ISL88001IE31Z-T equivalent, this device serves as a precision, single-supply voltage monitor for battery-powered embedded control, portable instrumentation, and industrial microprocessor reset management-requiring no external components and operating down to VDD = 1V.
Technical Context
The ISL88001IE31Z-T implements a factory-trimmed bandgap reference and comparator-based voltage monitoring architecture with built-in hysteresis (1%) to prevent noise-induced reset chatter. Its POR circuit asserts reset at VDD ≥ 1V and holds it until VDD exceeds 3.07V for ≥190ms.
This variant belongs to the ISL88001 family and features a push-pull RST output (active-low), SC-70-3 package, and operates across –40°C to +85°C. It requires no external pull-up resistor and delivers guaranteed reset validity even during deep undervoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.07V ±1.2% - precisely monitors 3.3V rail brownout without calibration. |
| Supply Current | 160nA at 1.8V - enables multi-year operation on coin-cell batteries. |
| POR Timeout | 190ms typical - ensures stable power-up before releasing µP reset. |
| Operating Voltage Range | 1.8V to 5.5V - supports wide input range while maintaining reset validity down to VDD = 1V. |
| Output Type | Push-pull active-low RST - drives reset line directly without external pull-up. |
| Temperature Range | –40°C to +85°C - qualified for industrial ambient environments. |
| Package | 3-lead SC-70 (P3.049) - 2.2mm × 1.35mm footprint saves PCB space vs. SOT-23. |
Pinout & Package
Package: 3-lead SC-70 (P3.049), Pb-free, RoHS-compliant, moisture sensitivity level (MSL) 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset logic; must be connected to system ground plane. |
| 2 | RST | Active-low push-pull reset output; sinks current when asserted (LOW), sources current when released (HIGH). |
| 3 | VDD | Power supply input and monitored voltage node; supplies IC and provides input to threshold comparator. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 3.07V trip point | Factory-trimmed threshold eliminates external resistor network and calibration effort. |
| 160nA quiescent current | Enables >10-year battery life in always-on supervisory applications like smart sensors. |
| 190ms POR timeout | Guarantees sufficient delay for oscillator stabilization and register initialization in µC systems. |
| Reset valid down to VDD = 1V | Ensures fail-safe reset assertion even during severe brownout or battery depletion. |
| No external components | Reduces BOM count, layout area, and qualification risk versus discrete supervisor solutions. |
Applications
| Microprocessor Power-Up Sequencing | Portable Medical Instrumentation |
|---|---|
Use Scenario: Ensuring safe boot of ARM Cortex-M microcontrollers after cold start or brownout. IC Role / Device Role / Timing Role: Voltage supervisor providing active-low reset signal synchronized to VDD ramp with 190ms timeout. Use Value: Prevents code execution before VDD stabilizes above 3.07V, eliminating undefined behavior and flash corruption. |
Use Scenario: Supervising lithium coin-cell–powered glucose meters and pulse oximeters. IC Role / Device Role / Timing Role: Low-current (160nA) supervisor detecting 3.3V rail collapse during battery aging. Use Value: Extends usable battery life by >2 years versus higher-IDD alternatives while maintaining reset reliability. |
| Industrial PLC I/O Modules | Handheld Test Equipment |
Use Scenario: Monitoring 3.3V logic rails in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Immune-to-transient supervisor asserting reset during EFT bursts or load-switching noise. Use Value: Eliminates spurious resets caused by 100ns/1kV transients due to internal hysteresis and robust comparator design. |
Use Scenario: Enabling reliable power-on reset in battery-operated multimeters and oscilloscope probes. IC Role / Device Role / Timing Role: SC-70 packaged supervisor delivering 3.07V threshold with minimal board area impact. Use Value: Reduces supervisor footprint by 40% vs. SOT-23 equivalents, enabling compact handheld form factors. |
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 | 3.08V threshold (±2.5%), 1.2µA IDD, SOT-23-3 package, active-low open-drain RST. | Requires external 50kΩ pull-up; higher current draw limits battery lifetime. | Select if legacy MAX809 compatibility or open-drain flexibility is required. |
| TPS3808G30DBVR | 3.0V threshold (±0.5%), 800nA IDD, SOT-23-6 package, adjustable delay via capacitor. | Larger footprint and 3× higher quiescent current; offers programmable timeout. | Select if tighter threshold tolerance or configurable POR timing is prioritized over size and ultra-low IDD. |
Compared with MAX809SEUR+T and TPS3808G30DBVR, the ISL88001IE31Z-T delivers superior battery longevity (160nA vs. ≥800nA), smaller SC-70 footprint, and push-pull drive eliminating external components-making it optimal for space- and energy-constrained designs where fixed 190ms timeout suffices.
Availability
ISL88001IE31Z-T is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical devices, and industrial I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL88001IE31Z-T 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, and power management ICs for automotive, industrial, and IoT applications.
The ISL88001 series was designed specifically for ultra-low-power voltage supervision in battery-powered and space-constrained embedded systems-emphasizing nanoscale current consumption, high threshold accuracy, and minimal external component count.
FAQ
What is the exact reset threshold voltage of the ISL88001IE31Z-T?
The ISL88001IE31Z-T has a nominal reset threshold of 3.07V with ±1.2% accuracy over –40°C to +85°C. At +25°C, the typical value is 3.075V, with min/max bounds of 3.038V and 3.112V respectively. This is factory-trimmed and does not require external calibration.
Does the ISL88001IE31Z-T require an external pull-up resistor on the RST pin?
No. The ISL88001IE31Z-T features a push-pull active-low RST output, meaning it actively drives LOW during reset and HIGH when released. Unlike open-drain supervisors (e.g., ISL88002), it needs no external pull-up resistor-reducing BOM count and layout complexity.
Can the ISL88001IE31Z-T operate reliably below 1.8V?
Yes. While the recommended operating range starts at 1.8V, the ISL88001IE31Z-T guarantees reset assertion down to VDD = 1.0V. This ensures fail-safe behavior during deep brownout or battery discharge, though normal supervision (threshold comparison) is specified only above 1.8V.
What is the power-on reset timeout duration for the ISL88001IE31Z-T?
The ISL88001IE31Z-T provides a typical power-on reset timeout of 190ms. Electrical specifications list tPOR as 140ms (min) to 260ms (max) over temperature. This delay ensures µP oscillators stabilize and internal registers initialize before release.
Which package type does the ISL88001IE31Z-T use, and what are its key mechanical dimensions?
The ISL88001IE31Z-T uses the 3-lead SC-70 package (drawing P3.049), measuring 2.20mm × 1.35mm × 0.95mm (L × W × H). Its footprint is ~40% smaller than equivalent SOT-23-3 devices, with 0.65mm lead pitch and RoHS-compliant NiPdAu termination.
ISL88001IE31Z-T 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:
- 3.075V
- 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
ISL88001IE31Z-T FAQ
1.How can I place an order for ISL88001IE31Z-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IE31Z-T 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 ISL88001IE31Z-T reliable?
The price and inventory of ISL88001IE31Z-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IE31Z-T is usually 5 days.
3.What payment methods are accepted for ISL88001IE31Z-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IE31Z-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IE31Z-T?
ISL88001IE31Z-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IE31Z-T 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 ISL88001IE31Z-T?
For technical support, including ISL88001IE31Z-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IE31Z-T requirements.
6.How does Aetrix verify that ISL88001IE31Z-T is sourced from the original manufacturer or authorized distributors?
All ISL88001IE31Z-T 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 ISL88001IE31Z-T meets industry standards.
7.What is the process for return or replacement of ISL88001IE31Z-T?
All ISL88001IE31Z-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IE31Z-T, 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 ISL88001IE31Z-T part is unused and in its original packaging.
Return procedure for ISL88001IE31Z-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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