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Renesas ISL88001IE17Z-T
- Part No.:
- ISL88001IE17Z-T
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88001IE17Z-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,775
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Product details
Overview
ISL88001IE17Z-T from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with push-pull active-low reset output, 1.67V fixed threshold, ±1.2% accuracy over -40°C to +85°C, 160nA supply current, and valid reset assertion down to VDD = 1V. It monitors single power rails in battery-powered microcontroller systems requiring reliable brownout detection and power-on reset.
For engineers reviewing the ISL88001IE17Z-T datasheet, ISL88001IE17Z-T pinout, ISL88001IE17Z-T application, or ISL88001IE17Z-T equivalent, this page delivers verified technical context, package-specific pin functionality, real-world use cases, and validated alternative options for low-voltage supervision in space-constrained embedded designs.
Technical Context
The ISL88001IE17Z-T implements a precision bandgap-based voltage reference comparator with internal hysteresis (1%) and a 190ms power-on reset timeout. Its reset logic asserts RST low when VDD falls below 1.67V or during initial power-up until VDD exceeds 1.67V and remains stable for tPOR.
Designed for direct integration into 1.8V system rails, it operates with supply current as low as 160nA at VDD = 1.8V and maintains reset validity down to VDD = 1V - enabling robust supervision even during deep brownout conditions before full rail stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V nominal, ±1.2% accuracy ensures precise 1.8V rail monitoring without external calibration. |
| Supply Current | 160nA typical at VDD = 1.8V - enables multi-year operation on coin-cell batteries in always-on monitoring. |
| POR Timeout | 190ms typical - guarantees sufficient delay for 1.8V LDOs and microcontroller oscillator stabilization. |
| Reset Validity Range | Operates down to VDD = 1V - provides fail-safe reset assertion during severe undervoltage events. |
| Output Type | Push-pull active-low RST - eliminates need for external pull-up resistor and reduces BOM count. |
| Temperature Range | -40°C to +85°C industrial grade - qualified for automotive infotainment, industrial sensors, and portable medical devices. |
| Hysteresis | 1% of VTH - prevents output chatter near threshold due to supply noise or slow-ramp transients. |
Pinout & Package
ISL88001IE17Z-T is housed in a Pb-free 3-lead SC-70 package (JEDEC MO-203AA, pkg drawing P3.049), measuring 2.20mm × 1.35mm × 0.95mm, optimized for high-density PCB layouts.
| 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 push-pull reset output | Drives LOW when VDD < 1.67V or during POR; actively drives HIGH when VDD > 1.67V + hysteresis - no external pull-up required. |
| 3 - VDD | Power supply input & monitored rail | Single-pin dual function: powers the IC and serves as the sensed voltage source; supports direct connection to 1.8V domain. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.67V threshold | Enables direct supervision of 1.8V logic rails without trimming resistors or external references. |
| 160nA ultra-low IDD | Extends battery life in IoT edge nodes and wearable health monitors where duty-cycled wake-up is critical. |
| 190ms POR timeout | Matches timing requirements of ARM Cortex-M0+ MCUs and low-power FPGAs for safe initialization sequencing. |
| 1V minimum operating VDD | Ensures deterministic reset behavior during rapid power collapse, preventing undefined MCU states. |
| SC-70 footprint compatibility | Shares land pattern with MAX803/809/810 - allows drop-in replacement in legacy designs without layout change. |
Applications
| Microprocessor Power Sequencing | Portable Medical Sensors |
|---|---|
|
Use Scenario: Supervising 1.8V core supply of an ARM-based patient monitor SoC during cold start and battery depletion. IC Role / Device Role / Timing Role: Voltage supervisor providing POR and brownout reset to hold CPU in reset until 1.8V rail stabilizes above 1.67V for ≥190ms. Use Value: Prevents corrupted memory writes and firmware crashes caused by premature execution under marginal voltage. |
Use Scenario: Monitoring coin-cell–powered glucose meter sensor interface IC powered from regulated 1.8V LDO. IC Role / Device Role / Timing Role: Low-current supervisor asserting RST when battery voltage drops below 1.67V, triggering graceful shutdown. Use Value: Enables >5-year shelf life and accurate low-battery warning without adding measurable load to primary cell. |
| Industrial Control Edge Node | Smart Home Sensor Hub |
|
Use Scenario: Ensuring reliable boot of a LoRaWAN gateway MCU after 24V-to-1.8V DC/DC converter startup. IC Role / Device Role / Timing Role: Single-supply supervisor detecting 1.8V rail integrity and generating clean reset pulse synchronized to power ramp. Use Value: Eliminates need for RC-based reset circuits prone to temperature drift and component aging. |
Use Scenario: Supervising 1.8V I/O rail of a Zigbee SoC in a battery-operated door/window contact sensor. IC Role / Device Role / Timing Role: Ultra-low-power supervisor with push-pull RST driving MCU reset pin directly, reducing standby leakage. Use Value: Cuts system quiescent current by 2.5µA vs. open-drain alternatives requiring pull-up resistors. |
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 | 1.63V threshold, ±2.5% accuracy, 1.2µA supply current, SOT-23-3 package | Higher IDD increases battery drain; looser threshold tolerance affects 1.8V margin analysis | Select when legacy SOT-23 footprint is mandatory and 1.63V trip point aligns with design margin. |
| TPS3801K33DBVR | 3.3V threshold (not 1.67V), 1.8µA IDD, 200ms POR, SC-70 package | Incorrect threshold for 1.8V rail; requires redesign of supervision strategy or external divider | Only viable if system uses 3.3V I/O domain and SC-70 is required - not a functional substitute for ISL88001IE17Z-T. |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88001IE17Z-T delivers tighter threshold accuracy (±1.2% vs. ±2.5%), 7.5× lower supply current, and exact 1.67V trip matching 1.8V rail specifications - making it the optimal choice for precision, ultra-low-power 1.8V supervision where reset timing and battery longevity are critical.
Availability
ISL88001IE17Z-T is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical sensors, and industrial control edge nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL88001IE17Z-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 delivering high-performance analog, mixed-signal, and embedded processing solutions for automotive, industrial, and IoT markets.
The ISL88001IE17Z-T belongs to Renesas' Ultra Low Power Voltage Supervisor family, engineered specifically for battery-constrained and space-limited applications requiring guaranteed reset behavior across wide temperature and voltage ranges.
FAQ
What is the exact reset threshold voltage of the ISL88001IE17Z-T?
The ISL88001IE17Z-T has a nominal reset threshold voltage of 1.67V, with guaranteed accuracy of ±1.2% over the full -40°C to +85°C operating range. At +25°C, the measured threshold falls between 1.650V and 1.690V, and across temperature it remains within 1.625V to 1.715V per datasheet FN6174 Rev 3.00.
Does the ISL88001IE17Z-T require an external pull-up resistor on the RST pin?
No, the ISL88001IE17Z-T features a push-pull active-low RST output, meaning it actively drives both HIGH and LOW states without needing an external pull-up resistor. This reduces BOM count and eliminates leakage paths that would increase standby current in battery-powered systems using the ISL88001IE17Z-T.
Can the ISL88001IE17Z-T operate reliably when the supply voltage drops below 1.8V?
Yes - the ISL88001IE17Z-T guarantees valid reset assertion down to VDD = 1V, and its internal circuitry remains functional throughout the 1.8V to 1.0V range. This ensures deterministic behavior during brownout conditions where other supervisors may release reset prematurely, making the ISL88001IE17Z-T especially robust for 1.8V system supervision.
What package type and dimensions does the ISL88001IE17Z-T use?
The ISL88001IE17Z-T is packaged in a Pb-free 3-lead SC-70 (JEDEC MO-203AA) with package drawing P3.049, measuring 2.20mm × 1.35mm × 0.95mm. Its footprint is compatible with industry-standard SC-70 land patterns and shares mechanical fit with MAX803/809/810 variants in the same package.
How does the power-on reset timeout of the ISL88001IE17Z-T compare to similar supervisors?
The ISL88001IE17Z-T provides a typical POR timeout of 190ms, falling within the 140ms to 260ms specified range. This exceeds the 140ms minimum of ISL88003 and closely matches the 155ms of ISL88002, ensuring sufficient time for 1.8V LDOs and microcontroller oscillators to stabilize - a key differentiator versus faster-reset alternatives that risk premature release.
ISL88001IE17Z-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.67V
- 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
ISL88001IE17Z-T FAQ
1.How can I place an order for ISL88001IE17Z-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IE17Z-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 ISL88001IE17Z-T reliable?
The price and inventory of ISL88001IE17Z-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IE17Z-T is usually 5 days.
3.What payment methods are accepted for ISL88001IE17Z-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IE17Z-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IE17Z-T?
ISL88001IE17Z-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IE17Z-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 ISL88001IE17Z-T?
For technical support, including ISL88001IE17Z-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IE17Z-T requirements.
6.How does Aetrix verify that ISL88001IE17Z-T is sourced from the original manufacturer or authorized distributors?
All ISL88001IE17Z-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 ISL88001IE17Z-T meets industry standards.
7.What is the process for return or replacement of ISL88001IE17Z-T?
All ISL88001IE17Z-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IE17Z-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 ISL88001IE17Z-T part is unused and in its original packaging.
Return procedure for ISL88001IE17Z-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88001IE17Z-T Tags
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MIC826SYMT-TR
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APX803L20-29SA-7
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