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Renesas ISL88002IE29Z-T7A
- Part No.:
- ISL88002IE29Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88002IE29Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,367
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Product details
Overview
ISL88002IE29Z-T7A from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with open-drain active-low reset output, 2.92V fixed threshold, ±1.2% accuracy, 160nA supply current, and 190ms power-on reset timeout. It monitors VDD in battery-powered microcontroller systems to ensure reliable startup and brownout protection.
For engineers reviewing the ISL88002IE29Z-T7A datasheet, ISL88002IE29Z-T7A pinout, ISL88002IE29Z-T7A application, or ISL88002IE29Z-T7A equivalent, this device delivers precise 2.92V supervision with minimal quiescent current, SC-70 package compatibility, and industrial temperature range support for portable and embedded designs.
Technical Context
The ISL88002IE29Z-T7A implements a precision bandgap-based voltage reference and comparator circuit to monitor VDD against a factory-trimmed 2.92V trip point with 1% hysteresis. Its internal POR circuit asserts reset at VDD ≥ 1V and holds RST low until VDD exceeds 2.92V for ≥190ms.
As an open-drain RST output, it requires an external pull-up resistor (5kΩ–100kΩ) and supports bidirectional logic-level interfacing. The device operates across -40°C to +85°C with no external components needed and immunity to power-supply transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.92V nominal, ±1.2% accuracy over -40°C to +85°C - ensures stable brownout detection for 3.0V/3.3V rails |
| Supply Current | 160nA typical at 1.8V - enables multi-year battery life in always-on monitoring applications |
| POR Timeout | 190ms typical - guarantees sufficient delay for microcontroller core and oscillator stabilization |
| Reset Output Type | Active-low open-drain - allows wired-OR configuration and flexible logic-level translation |
| Operating Voltage Range | 1.8V to 5.5V - supports direct connection to monitored rail without external regulation |
| Reset Valid Down To | VDD = 1V - provides early fault detection before system logic becomes unstable |
| Package | 3-lead SC-70 (P3.049) - 2.0mm × 1.25mm footprint saves PCB area in space-constrained designs |
Pinout & Package
ISL88002IE29Z-T7A is housed in a Pb-free 3-lead SC-70 plastic package (JEDEC MO-203AA, Renesas pkg drawing P3.049), measuring 2.0mm × 1.25mm × 0.95mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal circuitry and reset comparator - must be connected to system ground plane |
| 2 | RST | Open-drain active-low reset output - sinks current when asserted; requires external pull-up for HIGH state |
| 3 | VDD | Power supply input and monitored voltage rail - supplies IC and serves as analog input to threshold comparator |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.92V threshold | Accurately supervises 3.0V logic rails without trimming or calibration |
| 160nA supply current | Reduces standby power by >90% vs. legacy supervisors, extending battery runtime |
| 190ms POR timeout | Guarantees microcontroller reset hold time meets ARM Cortex-M and PIC timing requirements |
| Open-drain RST output | Enables shared reset bus across multiple ICs and compatibility with 1.8V/3.3V/5V logic families |
| SC-70 package | Delivers same functionality as SOT-23 in 40% smaller footprint for wearables and IoT sensors |
Applications
| Microprocessor Power Sequencing | Portable Medical Sensors |
|---|---|
Use Scenario: Ensuring safe boot of an ARM Cortex-M4 MCU powered from a Li-ion battery with variable discharge profile. IC Role / Device Role / Timing Role: Voltage supervisor providing active-low reset signal synchronized to VDD ramp and brownout events. Use Value: Prevents illegal instruction execution during low-VDD conditions and eliminates need for discrete RC reset circuits. | Use Scenario: Continuous glucose monitor operating on coin-cell battery with strict 10-year shelf-life requirement. IC Role / Device Role / Timing Role: Ultra-low-power supervisor enabling wake-on-reset architecture with sub-µA sleep current. Use Value: 160nA IDD extends battery life beyond 10 years while maintaining 2.92V rail integrity during cold-start. |
| Industrial PLC I/O Modules | Smart Home Hub Controllers |
Use Scenario: Protecting field-programmable gate array (FPGA) configuration memory during AC line sags in factory automation equipment. IC Role / Device Role / Timing Role: Brownout detector holding FPGA in reset until 3.3V rail stabilizes post-sag. Use Value: 190ms tPOR ensures full FPGA reconfiguration completes before peripheral initialization begins. | Use Scenario: Supervising dual-rail 3.3V/1.8V SoC in voice-controlled smart speaker with always-listening microphone array. IC Role / Device Role / Timing Role: Primary supervisor for 3.3V domain, coordinating with secondary supervisor on 1.8V rail via shared reset bus. Use Value: Open-drain RST enables wired-OR reset aggregation, simplifying multi-rail reset management. |
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 | 2.93V threshold, ±2.5% accuracy, 1.2µA supply current, SOT-23-3 package | Higher quiescent current limits use in multi-year battery applications; identical pinout but larger footprint | Select when legacy MAXIM compatibility or higher drive strength is required over ultra-low-power priority |
| TPS3801K33DBVR | 3.3V threshold, ±0.5% accuracy, 800nA supply current, SOT-23-3 package | Fixed 3.3V trip unsuitable for 3.0V rails; tighter tolerance trades off with higher cost and less common availability | Choose only if system uses 3.3V supply exclusively and requires sub-1% threshold accuracy |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88002IE29Z-T7A offers superior 2.92V precision for 3.0V systems, lowest power consumption for battery longevity, and smallest SC-70 footprint-making it optimal for next-generation compact, energy-sensitive designs.
Availability
ISL88002IE29Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical sensors, industrial PLC I/O modules, and smart home hub controllers requiring stable component supply and long-term manufacturability.
Supply support for ISL88002IE29Z-T7A 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 ISL88002IE29Z-T7A belongs to Renesas' ultra-low-power voltage supervisor family, designed specifically for battery-operated and space-constrained embedded systems requiring precise, reliable power-on reset and brownout protection.
FAQ
What is the exact reset threshold voltage of the ISL88002IE29Z-T7A?
The ISL88002IE29Z-T7A has a nominal reset threshold voltage of 2.92V, with guaranteed accuracy of ±1.2% over the full -40°C to +85°C industrial temperature range. At +25°C, the typical value is 2.925V, and the min/max limits are 2.850V and 3.000V respectively per the FN6174 datasheet.
Does the ISL88002IE29Z-T7A require an external pull-up resistor on the RST pin?
Yes, the ISL88002IE29Z-T7A features an open-drain RST output and requires an external pull-up resistor between RST and the target logic rail (e.g., 3.3V or 5V). Renesas recommends values from 5kΩ to 100kΩ; 10kΩ is commonly used to balance speed and power consumption in the ISL88002IE29Z-T7A design.
What is the power-on reset timeout duration for the ISL88002IE29Z-T7A?
The ISL88002IE29Z-T7A provides a typical power-on reset timeout (tPOR) of 190ms, with a guaranteed range of 140ms to 260ms over temperature. This delay ensures microcontrollers and FPGAs have sufficient time to stabilize clocks and initialize registers before release from reset.
Can the ISL88002IE29Z-T7A operate with supply voltages below 2.92V?
Yes-the ISL88002IE29Z-T7A remains functional and asserts valid reset down to VDD = 1.0V. Its internal circuitry operates across 1.8V to 5.5V, and the reset signal is guaranteed active (RST = LOW) whenever VDD falls below 2.92V, even during deep brownout conditions.
Is the ISL88002IE29Z-T7A pin-compatible with other members of the ISL8800x family?
Yes-the ISL88002IE29Z-T7A shares identical 3-lead SC-70 pinout and footprint with all ISL88001/ISL88002/ISL88003 variants, including ISL88001IE29Z-T7A (push-pull) and ISL88003IE29Z-T7A (push-pull active-high). Only the RST output type differs; no PCB redesign is needed when swapping within the same threshold variant.
ISL88002IE29Z-T7A 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:
- 2.925V
- 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
ISL88002IE29Z-T7A FAQ
1.How can I place an order for ISL88002IE29Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IE29Z-T7A 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 ISL88002IE29Z-T7A reliable?
The price and inventory of ISL88002IE29Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IE29Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88002IE29Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IE29Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IE29Z-T7A?
ISL88002IE29Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IE29Z-T7A 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 ISL88002IE29Z-T7A?
For technical support, including ISL88002IE29Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IE29Z-T7A requirements.
6.How does Aetrix verify that ISL88002IE29Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88002IE29Z-T7A 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 ISL88002IE29Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88002IE29Z-T7A?
All ISL88002IE29Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IE29Z-T7A, 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 ISL88002IE29Z-T7A part is unused and in its original packaging.
Return procedure for ISL88002IE29Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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