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Renesas ISL88001IE22Z-TK
- Part No.:
- ISL88001IE22Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88001IE22Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,775
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Product details
Overview
ISL88001IE22Z-TK from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with a fixed 2.19V 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 from VDD = 1.8V to 2.75V, serving as a system-level power-on reset and brownout detector in space-constrained portable electronics.
For engineers reviewing the ISL88001IE22Z-TK datasheet, ISL88001IE22Z-TK pinout, ISL88001IE22Z-TK application, or ISL88001IE22Z-TK equivalent, key selection criteria include its SC-70 package footprint, guaranteed reset assertion down to VDD = 1V, immunity to supply transients, and compatibility with microcontroller reset inputs requiring clean, low-current supervision.
Technical Context
The ISL88001IE22Z-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 for ≥140ms until VDD exceeds 2.19V and remains stable.
This device integrates no external components-only VDD, GND, and RST connections are required-and delivers deterministic timing behavior across -40°C to +85°C, with VTH temperature coefficient of 0.48mV/°C and normalized tPOR variation ≤±1.5% over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold (VTH) | 2.19V ±1.2% - ensures reliable detection of 2.2V rail brownout without false triggers |
| Supply Current (IDD) | 160nA typical at VDD = 1.8V - enables multi-year battery life in always-on monitoring |
| POR Timeout (tPOR) | 190ms nominal - provides sufficient stabilization time for low-power MCUs and FPGAs |
| Operating Voltage Range | 1.8V to 2.75V - supports 2.2V logic rails and Li-ion single-cell systems |
| Reset Output Type | Push-pull active-low - drives MCU RESET pin directly without external pull-up |
| Reset Valid Down To | VDD = 1V - guarantees reset assertion during deep brownout or cold-start conditions |
| Package | 3-lead SC-70 (P3.049) - 1.25mm × 0.85mm footprint, compatible with high-density PCB layouts |
Pinout & Package
ISL88001IE22Z-TK is housed in a Pb-free, RoHS-compliant 3-lead SC-70 package (JEDEC MO-203AA, pkg drawing P3.049), measuring 1.25mm × 0.85mm × 0.5mm with gull-wing leads. The package supports reflow soldering per IPC/JEDEC J-STD-020 MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be connected to system ground plane |
| 2 | RST | Active-low push-pull reset output; sinks current when asserted, sources current when deasserted |
| 3 | VDD | Power supply input and monitored voltage rail; supplies IC and serves as threshold reference input |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.19V trip point | Eliminates need for external resistor divider; reduces BOM count and layout area |
| 160nA supply current | Enables integration into energy-harvesting and coin-cell-powered devices without compromising runtime |
| ±1.2% threshold accuracy | Guarantees consistent reset behavior across production lots and temperature without calibration |
| 190ms POR timeout | Meets JEDEC JESD78 reliability requirements for microprocessor initialization sequencing |
| Reset valid down to 1V | Ensures fail-safe operation during battery discharge below nominal voltage |
Applications
| Microprocessor Power Sequencing | Portable Medical Sensors |
|---|---|
Use Scenario: Ensuring safe boot of ARM Cortex-M0+ MCU after Li-ion battery reaches 2.2V nominal voltage. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout detection on VDD rail. Use Value: Prevents corrupted firmware execution by holding MCU in reset until 2.19V threshold is exceeded and stabilized for 190ms. | Use Scenario: Monitoring regulated 2.2V supply in wearable ECG patch operating from CR2032 coin cell. IC Role / Device Role / Timing Role: Ultra-low-power reset generator with 160nA quiescent current. Use Value: Extends battery life beyond 3 years while guaranteeing reliable startup and brownout recovery. |
| Industrial IoT Edge Node | Low-Power Wireless Sensor Hub |
Use Scenario: Supervising 2.2V LDO output powering LoRaWAN transceiver and sensor interface ASIC. IC Role / Device Role / Timing Role: System-level voltage monitor with push-pull RST driving FPGA configuration controller. Use Value: Immunity to supply transients avoids spurious resets during RF transmission bursts. | Use Scenario: Enabling cold-start operation of BLE SoC from partially discharged 2.2V supercapacitor backup. IC Role / Device Role / Timing Role: Brownout detector asserting reset down to VDD = 1V. Use Value: Maintains system integrity during capacitor voltage sag, preventing data corruption during wake-up. |
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 | 2.0V reset threshold, SOT-23-3 package, 1.6µA IDD, 240ms tPOR | Higher supply current limits battery lifetime; requires higher VDD minimum (2.5V) | Select when 2.0V threshold matches system rail and SOT-23 footprint is preferred over SC-70 |
| TPS3808G12QDBVRQ1 | 1.2V threshold, adjustable via external resistor, 1.1µA IDD, automotive-grade (-40°C to +125°C) | Not pin-compatible; requires external resistor network; rated for automotive AEC-Q100 | Select for automotive designs needing wider temp range or programmable threshold, not for direct replacement |
Compared with MAX809SEUR+T and TPS3808G12QDBVRQ1, the ISL88001IE22Z-TK offers 10× lower quiescent current and exact 2.19V trip matching common 2.2V rails, making it optimal for long-life portable and industrial edge nodes where board space and battery drain are critical constraints.
Availability
ISL88001IE22Z-TK is available at Aetrix Electronics and suitable for microprocessor power sequencing, portable medical sensors, and industrial IoT edge nodes requiring stable component supply and long-term lifecycle support.
Supply support for ISL88001IE22Z-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 ISL88001 series belongs to Renesas' ultra-low-power voltage supervisor product line, designed specifically for battery-operated and space-constrained embedded systems requiring precise, low-current power monitoring and reset control.
FAQ
What is the reset threshold voltage of the ISL88001IE22Z-TK?
The ISL88001IE22Z-TK has a factory-programmed fixed reset threshold of 2.19V 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 part marking "122" is specified as 2.19V nominal with min/max bounds of 2.131V–2.249V.
Does the ISL88001IE22Z-TK require external components to operate?
No, the ISL88001IE22Z-TK requires no external components. As stated in the Features section (page 1) and Principles of Operation (page 9), it integrates all necessary circuitry-including voltage reference, comparator, and POR timer-within the IC. Only VDD, GND, and RST connections are needed for full functionality.
What package type and dimensions does the ISL88001IE22Z-TK use?
The ISL88001IE22Z-TK uses a 3-lead SC-70 package (JEDEC MO-203AA, pkg drawing P3.049), measuring 1.25mm × 0.85mm × 0.5mm. This is explicitly documented in the Ordering Information table (page 3) under "PACKAGE" for all "-TK" variants with "IE" prefix, and detailed in Package Outline Drawings (page 14).
Is the ISL88001IE22Z-TK pin-compatible with other members of the ISL8800x family?
Yes, the ISL88001IE22Z-TK shares identical pinout and package with all ISL88001 variants in SC-70 (e.g., ISL88001IE46Z-TK) and is pin-compatible with ISL88002/ISL88003 in the same package. Pin descriptions (page 2) confirm GND–RST–VDD assignment is consistent across ISL88001/002/003 in both SC-70 and SOT-23 footprints.
What is the minimum supply voltage at which the ISL88001IE22Z-TK can assert reset?
The ISL88001IE22Z-TK asserts reset down to VDD = 1V, as stated in the first paragraph of the Datasheet (page 1) and confirmed in the Absolute Maximum Ratings (page 8). This ensures fail-safe operation during deep brownout or cold-start conditions before the monitored rail reaches its nominal 2.19V threshold.
ISL88001IE22Z-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:
- 2.19V
- 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
ISL88001IE22Z-TK FAQ
1.How can I place an order for ISL88001IE22Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IE22Z-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 ISL88001IE22Z-TK reliable?
The price and inventory of ISL88001IE22Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IE22Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88001IE22Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IE22Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IE22Z-TK?
ISL88001IE22Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IE22Z-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 ISL88001IE22Z-TK?
For technical support, including ISL88001IE22Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IE22Z-TK requirements.
6.How does Aetrix verify that ISL88001IE22Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88001IE22Z-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 ISL88001IE22Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88001IE22Z-TK?
All ISL88001IE22Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IE22Z-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 ISL88001IE22Z-TK part is unused and in its original packaging.
Return procedure for ISL88001IE22Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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