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Renesas ISL88002IE16Z-TK
- Part No.:
- ISL88002IE16Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88002IE16Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,011
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Product details
Overview
ISL88002IE16Z-TK from Renesas Electronics is an ultra-low-power (160nA) open-drain voltage supervisor IC in a 3-lead SC-70 package, with a fixed 1.58V reset threshold, ±1.2% accuracy, and 190ms power-on reset timeout. It monitors VDD supply voltage and asserts an active-low reset signal to microcontrollers during brownout or startup, supporting portable/battery-powered systems requiring high reliability and minimal quiescent current.
For engineers reviewing the ISL88002IE16Z-TK datasheet, ISL88002IE16Z-TK pinout, ISL88002IE16Z-TK application, or ISL88002IE16Z-TK equivalent, key selection criteria include its 1.58V trip point tolerance, SC-70 footprint compatibility, open-drain RST output requiring external pull-up, guaranteed operation down to VDD = 1V, and pin compatibility with legacy MAX803/809/810 supervisors.
Technical Context
The ISL88002IE16Z-TK implements a precision bandgap-based voltage reference and comparator circuit to detect falling VDD below its factory-trimmed 1.58V threshold, with 1% hysteresis to prevent noise-induced chatter. Its internal POR circuit activates at VDD = 1V to ensure reliable system initialization before oscillator stabilization.
As an open-drain RST device, it sinks current when asserting reset (RST = LOW), requiring an external pull-up resistor (5kΩ–100kΩ) for proper logic-level translation. It operates across -40°C to +85°C with thermal resistance θJA = 640°C/W in SC-70 packaging and consumes only 160nA typical supply current at 1.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold (VTH) | 1.58V nominal, ±1.2% accuracy over temperature - ensures precise detection of 1.5V–1.6V supply rails without calibration. |
| Supply Current (IDD) | 160nA typical at VDD = 1.8V - enables multi-year battery life in always-on monitoring applications. |
| POR Timeout (tPOR) | 190ms typical - holds reset long enough for FPGA configuration and µP register initialization after power-up. |
| Minimum Operating VDD | 1.0V - guarantees valid reset assertion even during deep brownout conditions where core logic may fail. |
| Output Type | Open-drain RST - allows wired-OR reset bus sharing and flexible voltage-level translation via external pull-up. |
| Package | 3-lead SC-70 (P3.049) - 1.25mm × 0.80mm footprint saves PCB area vs. SOT-23 while maintaining reflow compatibility. |
Pinout & Package
ISL88002IE16Z-TK is housed in a Pb-free, RoHS-compliant 3-lead SC-70 plastic package (JEDEC MO-203AA, Renesas drawing P3.049), measuring 1.25mm × 0.80mm × 0.50mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and voltage reference - must be connected directly to system ground plane. |
| 2 | RST | Active-low open-drain reset output - requires external pull-up resistor (5kΩ–100kΩ) to define HIGH level; sinks up to 10mA. |
| 3 | VDD | Power supply input and monitored voltage node - supplies IC bias and serves as the sensed rail; supports 1.8V–5.5V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 160nA typical - reduces standby power in battery-critical IoT sensors and wearables. |
| High threshold accuracy | ±1.2% over -40°C to +85°C - eliminates need for external trimming in precision 1.5V/1.6V supply monitoring. |
| Valid reset at low VDD | Asserts reset down to VDD = 1.0V - provides fail-safe supervision during severe undervoltage events. |
| No external components | Self-contained supervision - no capacitors, resistors, or references required beyond RST pull-up. |
| Transient immunity | Immune to fast supply transients - prevents false resets caused by switching noise or ESD coupling. |
Applications
| Industrial Sensor Node | Medical Wearable Monitor |
|---|---|
|
Use Scenario: A battery-powered temperature/humidity sensor node sleeps for 30s between BLE transmissions and must guarantee clean boot after cold-start or voltage sag. IC Role / Device Role / Timing Role: ISL88002IE16Z-TK monitors the 1.8V LDO output feeding the MCU and BLE SoC, asserting RST until VDD stabilizes above 1.58V for ≥190ms. Use Value: Prevents firmware crash during marginal power-up and eliminates need for software-based power-good polling, saving 2.3µA average current. |
Use Scenario: An ECG patch uses a 1.5V coin cell and low-dropout regulator; system must never operate below safe analog front-end voltage. IC Role / Device Role / Timing Role: ISL88002IE16Z-TK supervises the regulated 1.58V rail powering the ADC and op-amps, holding reset until full regulation is achieved. Use Value: Ensures analog signal integrity by blocking digital activity until reference voltages settle, avoiding corrupted ECG waveforms. |
| POS Terminal Power Sequencing | Smart Meter Backup Supply |
|
Use Scenario: A retail POS terminal powers up from 5V main supply but includes a 3.3V auxiliary rail for secure element; both rails require coordinated reset timing. IC Role / Device Role / Timing Role: ISL88002IE16Z-TK supervises the 1.58V backup supervisor rail that enables sequencing logic, ensuring secure element reset occurs only after primary rails are stable. Use Value: Enables deterministic power-up order without custom timing circuits, reducing BOM count and layout complexity. |
Use Scenario: A utility smart meter maintains real-time clock and memory during AC mains failure using a supercapacitor-backed 1.6V rail. IC Role / Device Role / Timing Role: ISL88002IE16Z-TK monitors the supercapacitor voltage, asserting RST when it drops below 1.58V to halt non-essential processing and preserve charge. Use Value: Extends backup runtime by 18% versus less accurate supervisors, delaying brownout shutdown until critical charge threshold is reached. |
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 | 1.6V threshold, ±2.5% accuracy, SOT-23-3 package, 1.2µA IDD | Higher supply current and looser threshold tolerance - suitable where 1.6V trip is acceptable and board space allows larger package. | Select if legacy MAX809 footprint is fixed and 1.6V trip aligns with system margin; verify tPOR = 240ms meets timing budget. |
| TPS3808G15DBVR | 1.5V threshold, ±0.5% accuracy, adjustable delay, SOT-23-6 package, 1.1µA IDD | Higher accuracy and programmable timeout, but larger 6-pin package and higher quiescent current - better for precision designs with layout flexibility. | Choose when tighter threshold tolerance (<±0.5%) or configurable reset delay is required; not drop-in due to pin count and package size. |
Compared with MAX809SEUR+T and TPS3808G15DBVR, the ISL88002IE16Z-TK delivers superior ultra-low-power operation (160nA vs >1µA) and tighter threshold accuracy (±1.2% vs ±2.5% or ±0.5%) in the smallest SC-70 footprint, making it optimal for space- and energy-constrained applications where 1.58V trip is specified.
Availability
ISL88002IE16Z-TK is available at Aetrix Electronics and suitable for industrial sensor nodes, medical wearables, POS terminals, smart meters, and battery-backed embedded systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for ISL88002IE16Z-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 high-performance, low-power microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT markets.
The ISL88002IE16Z-TK belongs to Renesas' Ultra Low Power Voltage Supervisor family, designed specifically for battery-operated and energy-harvesting systems where nanoscale quiescent current and precise voltage monitoring are critical to system reliability and longevity.
FAQ
What is the exact reset threshold voltage of the ISL88002IE16Z-TK?
The ISL88002IE16Z-TK has a nominal reset threshold voltage of 1.58V, with guaranteed accuracy of ±1.2% over the full operating temperature range (-40°C to +85°C). At +25°C, the typical value is 1.580V, with min/max limits of 1.537V and 1.623V respectively, as confirmed in the FN6174 datasheet Electrical Specifications table.
Does the ISL88002IE16Z-TK require an external pull-up resistor on the RST pin?
Yes, the ISL88002IE16Z-TK features an open-drain RST output and requires an external pull-up resistor to define the HIGH logic level. The datasheet recommends values between 5kΩ and 100kΩ; a 10kΩ resistor is commonly used for optimal rise time and current consumption balance in most applications.
Can the ISL88002IE16Z-TK operate reliably at VDD = 1.2V?
Yes, the ISL88002IE16Z-TK asserts a valid reset signal down to VDD = 1.0V, so it functions correctly at 1.2V. However, its specified supply voltage range for normal operation begins at 1.8V; operation below 1.8V is limited to reset assertion only and does not guarantee full functional behavior of internal circuitry.
Is the ISL88002IE16Z-TK pin-compatible with the MAX809 series?
Yes, the ISL88002IE16Z-TK is explicitly stated in the FN6174 datasheet to be pin compatible with MAX803, MAX809, and MAX810 supervisors. Its 3-lead SC-70 pinout (GND-RST-VDD) matches the functional mapping of those devices, enabling direct replacement in existing layouts where SC-70 is used.
What is the power-on reset timeout duration for the ISL88002IE16Z-TK?
The ISL88002IE16Z-TK has a typical power-on reset timeout (tPOR) of 190ms, with a guaranteed range of 140ms to 260ms over temperature. This delay ensures sufficient time for microcontroller oscillator stabilization, register initialization, and FPGA configuration before releasing reset.
ISL88002IE16Z-TK 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:
- 1.58V
- 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
ISL88002IE16Z-TK FAQ
1.How can I place an order for ISL88002IE16Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IE16Z-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 ISL88002IE16Z-TK reliable?
The price and inventory of ISL88002IE16Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IE16Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88002IE16Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IE16Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IE16Z-TK?
ISL88002IE16Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IE16Z-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 ISL88002IE16Z-TK?
For technical support, including ISL88002IE16Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IE16Z-TK requirements.
6.How does Aetrix verify that ISL88002IE16Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88002IE16Z-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 ISL88002IE16Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88002IE16Z-TK?
All ISL88002IE16Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IE16Z-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 ISL88002IE16Z-TK part is unused and in its original packaging.
Return procedure for ISL88002IE16Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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