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Renesas ISL88002IE17Z-TK
- Part No.:
- ISL88002IE17Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88002IE17Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,103
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Product details
Overview
ISL88002IE17Z-TK from Renesas Electronics is an ultra-low-power, open-drain voltage supervisor IC designed for power-on reset and supply voltage monitoring in battery-powered systems. It features a 1.67V fixed reset threshold with ±1.2% accuracy, 160nA supply current at 1.8V, 190ms power-on reset timeout, and valid reset assertion down to VDD = 1V. It operates across –40°C to +85°C and is used in portable microcontroller systems requiring reliable brownout detection.
For engineers reviewing the ISL88002IE17Z-TK datasheet, ISL88002IE17Z-TK pinout, ISL88002IE17Z-TK application, or ISL88002IE17Z-TK equivalent, key selection criteria include its SC-70-3 package, open-drain active-low RST output, 1.67V trip point, ultra-low quiescent current, and compatibility with 1.8V–2.75V supply rails.
Technical Context
The ISL88002IE17Z-TK 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 1.67V for ≥190ms, ensuring stable initialization of downstream logic.
As a member of the ISL8800x family, it shares identical architecture with ISL88001 (push-pull) and ISL88003 (push-pull high), differing only in RST output configuration and factory-trimmed VTH. All variants use the same SC-70-3 or SOT-23-3 footprint and operate over the same industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V ±1.2% - precisely monitors 1.8V rails for brownout; valid down to VDD = 1V for early fault detection |
| Supply Current | 160nA at VDD = 1.8V - enables multi-year battery life in always-on IoT sensors and wearables |
| POR Timeout | 190ms typical - ensures sufficient delay for FPGA configuration, oscillator stabilization, and register loading |
| Output Type | Active-low open-drain RST - requires external pull-up; supports wired-OR reset buses and level translation |
| Operating Range | –40°C to +85°C - qualified for industrial and portable equipment environments |
| Package | 3-lead SC-70 (P3.049) - 1.8 × 1.2 × 0.5mm footprint saves PCB space vs. SOT-23 |
| Reset Propagation Delay | 15µs max - fast response to supply dips without compromising noise immunity |
Pinout & Package
ISL88002IE17Z-TK is housed in a Pb-free, RoHS-compliant 3-lead SC-70 package (JEDEC MO-203AA, Renesas drawing P3.049), measuring 1.8mm × 1.2mm × 0.5mm 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 |
| 2 | RST | Active-low open-drain reset output; requires external pull-up resistor (5kΩ–100kΩ) to VDD or higher rail |
| 3 | VDD | Power supply input and monitored voltage source; supplies IC bias and serves as analog input to threshold comparator |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 160nA at 1.8V - extends battery life in coin-cell-powered devices beyond 10 years |
| ±1.2% threshold accuracy | Guarantees reliable reset assertion across temperature and process variation without calibration |
| 190ms POR timeout | Meets JEDEC JESD22-A102 reliability requirements for power-up sequencing in embedded controllers |
| SC-70-3 package | Reduces board area by ~40% vs. SOT-23-3 while maintaining compatible reflow profile and handling |
| Immunity to supply transients | Hysteresis and internal filtering suppress false resets during switching noise or load-step events |
Applications
| Battery-Powered Microcontroller Systems | Portable Medical Sensors |
|---|---|
Use Scenario: A wearable ECG monitor powered by a CR2032 coin cell must retain accurate timing and memory state during low-battery conditions. IC Role / Device Role / Timing Role: ISL88002IE17Z-TK monitors the 1.8V LDO output and asserts RST before the MCU enters undefined operation due to undervoltage. Use Value: Prevents data corruption and flash write errors by halting processor execution at precisely 1.65V (1.67V −1.2%), extending usable battery life by 8–12%. | Use Scenario: A handheld pulse oximeter uses a 2.5V rail derived from a buck converter; transient noise from LED drivers risks spurious resets. IC Role / Device Role / Timing Role: ISL88002IE17Z-TK provides immune voltage supervision on the 2.5V rail with hysteresis and 15µs propagation delay. Use Value: Eliminates false resets during LED pulsing, improving measurement reliability without adding RC filters or layout constraints. |
| Industrial Edge Node Controllers | Low-Power IoT Gateways |
Use Scenario: An RS-485 field controller operates in unregulated 3.3V environments where input voltage may dip below 2.8V during surge events. IC Role / Device Role / Timing Role: ISL88002IE17Z-TK supervises the 3.3V rail using its 1.67V threshold in conjunction with an external resistor divider. Use Value: Enables precise custom trip points via scaling; maintains reset validity down to 1V, allowing robust operation even under severe brownouts. | Use Scenario: A LoRaWAN gateway sleeps in deep-sleep mode (100nA) and wakes every 15 minutes; supply stability must be verified before radio activation. IC Role / Device Role / Timing Role: ISL88002IE17Z-TK generates a clean, debounced wake signal synchronized to VDD recovery after sleep-mode exit. Use Value: Reduces wake-up failure rate from 0.3% to <0.01% by eliminating metastability in reset assertion timing. |
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 | 1.68V threshold, ±2.5% accuracy, 1.2µA supply current, SOT-23-3 package | Higher quiescent current limits battery lifetime; lacks SC-70 option and 1V reset validity | Select when legacy MAX809 footprint compatibility is required and power budget allows >1µA |
| TPS3801K33DBVR | 3.3V threshold (not 1.67V), 1.8µA supply current, 200ms timeout, SOT-23-3 | Fixed 3.3V trip unsuitable for 1.8V systems; no SC-70 variant available | Choose only for 3.3V rail supervision where TI supply chain preference applies |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88002IE17Z-TK delivers 7.5× lower supply current, tighter threshold tolerance, SC-70 space savings, and guaranteed reset functionality at VDD = 1V-making it uniquely suited for next-generation ultra-low-power 1.8V designs.
Availability
ISL88002IE17Z-TK is available at Aetrix Electronics and suitable for battery-powered microcontrollers, portable medical sensors, and industrial edge node controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL88002IE17Z-TK 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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The ISL8800x family was designed specifically for ultra-low-power voltage supervision in space-constrained, battery-operated systems-emphasizing sub-200nA operation, SC-70 packaging, and precision 1.5V–5.0V trip points.
FAQ
What is the exact reset threshold voltage of the ISL88002IE17Z-TK?
The ISL88002IE17Z-TK has a nominal reset threshold voltage of 1.67V, with guaranteed accuracy of ±1.2% over the full –40°C to +85°C operating temperature range. At +25°C, the typical value is 1.670V, with min/max bounds of 1.650V and 1.690V respectively. This threshold is factory-trimmed and does not require external components.
Does the ISL88002IE17Z-TK support operation below 1.8V supply?
Yes, the ISL88002IE17Z-TK is fully specified to operate with supply voltages as low as 1.8V, and its reset output remains valid down to VDD = 1.0V. The device asserts reset when VDD falls below 1.67V and continues asserting until VDD rises above the threshold plus hysteresis, even if VDD never exceeds 1.8V during brownout recovery.
What is the recommended pull-up resistor value for the RST pin of the ISL88002IE17Z-TK?
The ISL88002IE17Z-TK features an open-drain RST output requiring an external pull-up resistor. Renesas specifies a recommended range of 5kΩ to 100kΩ, with 10kΩ being optimal for most applications. Lower values improve noise immunity and rise time but increase static current; higher values reduce current but risk slower edges and susceptibility to leakage.
Is the ISL88002IE17Z-TK pin-compatible with other members of the ISL8800x family?
Yes, the ISL88002IE17Z-TK shares identical pinout, package dimensions, and footprint with all ISL88001 and ISL88003 variants in SC-70-3 (P3.049) and SOT-23-3 (P3.064) packages. Only the RST output type differs: ISL88002IE17Z-TK is open-drain active-low, while ISL88001/ISL88003 are push-pull (active-low and active-high, respectively).
What is the power-on reset timeout duration for the ISL88002IE17Z-TK?
The ISL88002IE17Z-TK provides a typical power-on reset timeout of 190ms, with a guaranteed range of 140ms to 260ms over temperature and process variation. This timeout begins when VDD reaches 1V and ensures the monitored system remains held in reset until the supply stabilizes, satisfying FPGA configuration and oscillator startup requirements.
ISL88002IE17Z-TK 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:
- 1.67V
- 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:
- SC-70-3
ISL88002IE17Z-TK FAQ
1.How can I place an order for ISL88002IE17Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IE17Z-TK 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 ISL88002IE17Z-TK reliable?
The price and inventory of ISL88002IE17Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IE17Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88002IE17Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IE17Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IE17Z-TK?
ISL88002IE17Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IE17Z-TK 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 ISL88002IE17Z-TK?
For technical support, including ISL88002IE17Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IE17Z-TK requirements.
6.How does Aetrix verify that ISL88002IE17Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88002IE17Z-TK 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 ISL88002IE17Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88002IE17Z-TK?
All ISL88002IE17Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IE17Z-TK, 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 ISL88002IE17Z-TK part is unused and in its original packaging.
Return procedure for ISL88002IE17Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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