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Renesas ISL88001IH23Z-T
- Part No.:
- ISL88001IH23Z-T
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88001IH23Z-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,510
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Product details
Overview
ISL88001IH23Z-T from Renesas Electronics is a single-channel, ultra-low-power voltage supervisor IC with 2.32V fixed reset threshold, push-pull active-low RST output, and 3-lead SOT-23 package. It delivers 160nA supply current, ±1.2% threshold accuracy, and 190ms power-on reset timeout, enabling reliable power monitoring in battery-powered microcontroller systems.
For engineers reviewing the ISL88001IH23Z-T datasheet, ISL88001IH23Z-T pinout, ISL88001IH23Z-T application, or ISL88001IH23Z-T equivalent, this page provides verified technical context, validated pin functions, real-world use cases, and confirmed alternative options for industrial-grade voltage supervision where low quiescent current and precise trip point stability are critical.
Technical Context
The ISL88001IH23Z-T integrates a precision bandgap reference and comparator to monitor VDD against a factory-trimmed 2.32V threshold with 1% hysteresis. Its internal POR circuit asserts reset at VDD ≥ 1V and holds RST low until VDD exceeds 2.32V for ≥190ms.
This device operates across -40°C to +85°C, consumes only 160nA at 1.8V, and features immunity to power-supply transients-making it suitable for brownout detection in portable instrumentation and embedded controllers without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V ±1.2% - ensures accurate brownout detection for 2.5V/3.3V logic rails |
| Supply Current | 160nA typical - enables multi-year operation on coin-cell batteries |
| POR Timeout | 190ms nominal - guarantees stable MCU initialization after power-up |
| Reset Output Type | Push-pull active-low - eliminates need for external pull-up resistor |
| Operating Voltage Range | 1.8V to 2.75V - supports direct monitoring of 2.5V and 3.3V supplies with margin |
| Reset Valid Down To | VDD = 1V - maintains supervision during deep brownout conditions |
| Package | 3-lead SOT-23 (P3.064) - industry-standard footprint for high-density PCB layouts |
Pinout & Package
ISL88001IH23Z-T uses a 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), with 0.95mm lead pitch, 2.92mm × 1.30mm body size, and matte tin (e3) RoHS-compliant termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset logic |
| 2 | RST | Active-low push-pull reset output; drives LOW when VDD < 2.32V |
| 3 | VDD | Power supply input and monitored voltage node; no external bias required |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.32V threshold | Enables precise supervision of 2.5V systems without trimming or calibration |
| 160nA supply current | Extends battery life in always-on IoT sensors and handheld devices |
| 190ms POR timeout | Guarantees sufficient delay for oscillator stabilization and register loading |
| Push-pull RST output | Eliminates external pull-up resistor, reducing BOM count and layout area |
| Reset valid down to 1V | Provides fail-safe supervision during severe undervoltage events |
Applications
| Microprocessor Power Supervision | Portable Medical Instrumentation |
|---|---|
Use Scenario: Monitoring 2.5V core supply for ARM Cortex-M0+ MCU in a wearable ECG patch. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout protection to prevent corrupted firmware execution. Use Value: 160nA quiescent current extends battery runtime beyond 18 months; 2.32V threshold matches 2.5V rail tolerance. | Use Scenario: Ensuring safe startup and fault recovery in a handheld pulse oximeter powered by CR2032. IC Role / Device Role / Timing Role: Single-supply monitor asserting reset until VDD stabilizes above 2.32V for ≥190ms. Use Value: Push-pull RST eliminates external resistor, saving space in compact medical enclosure; 1V reset validity prevents false wakeups during battery sag. |
| Industrial Sensor Node | Smart Home Controller |
Use Scenario: Supervising 3.3V supply in an RS-485-connected temperature sensor node operating at -40°C. IC Role / Device Role / Timing Role: Low-power voltage supervisor ensuring MCU remains held in reset during cold-start voltage ramp. Use Value: ±1.2% threshold accuracy over -40°C to +85°C avoids spurious resets; SOT-23 package withstands reflow and vibration. | Use Scenario: Brownout protection for a Wi-Fi-enabled thermostat using a 2.5V LDO-regulated supply. IC Role / Device Role / Timing Role: Fixed-threshold supervisor detecting dips below 2.32V and holding system in reset until recovery. Use Value: Immunity to power-supply transients prevents nuisance resets during relay switching; RoHS-compliant e3 finish supports lead-free assembly. |
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 | 2.5V threshold, 1.2µA supply current, SOT-23-3 package | Higher current draw limits battery life; less accurate threshold (±2.5%) | Select when legacy MAX809 compatibility is required and 2.5V trip point suffices |
| TPS3801K23DBVR | 2.33V threshold, 1.8µA supply current, same SOT-23-3 footprint | Higher IDD reduces energy efficiency; slightly tighter threshold tolerance (±0.5%) | Choose if higher accuracy outweighs 11× higher quiescent current in non-battery designs |
Compared with MAX809SEUR+T and TPS3801K23DBVR, the ISL88001IH23Z-T delivers superior energy efficiency (160nA vs >1µA) and adequate accuracy (±1.2%) for cost-sensitive, long-life applications-making it optimal for battery-powered edge nodes where µA-level leakage is unacceptable.
Availability
ISL88001IH23Z-T is available at Aetrix Electronics and suitable for microprocessor supervision, portable instrumentation, industrial sensor nodes, and smart home controllers requiring stable component supply across extended product lifecycles.
Supply support for ISL88001IH23Z-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 ISL88001 series belongs to Renesas' ultra-low-power voltage supervisor product line, designed specifically for battery-operated and energy-constrained systems requiring precise, reliable power monitoring with minimal overhead.
FAQ
What is the exact reset threshold voltage of the ISL88001IH23Z-T?
The ISL88001IH23Z-T has a nominal reset threshold of 2.32V with ±1.2% accuracy over -40°C to +85°C. At +25°C, the typical value is 2.320V, with min/max bounds of 2.292V and 2.348V per the FN6174 datasheet. This threshold is factory-trimmed and applies specifically to the ISL88001IH23Z-T variant in SOT-23 packaging.
Does the ISL88001IH23Z-T require an external pull-up resistor on the RST pin?
No, the ISL88001IH23Z-T features a push-pull active-low RST output, so no external pull-up resistor is needed. The RST pin actively drives LOW when VDD falls below 2.32V and HIGH when VDD rises above the threshold plus hysteresis. This simplifies design and saves board space compared to open-drain alternatives like the ISL88002 series.
What is the minimum supply voltage at which the ISL88001IH23Z-T can assert a valid reset signal?
The ISL88001IH23Z-T asserts a valid reset signal down to VDD = 1V. This allows reliable brownout detection even during deep supply sags-critical for maintaining system integrity in battery-powered applications where voltage decay is gradual. The reset remains asserted until VDD exceeds 2.32V for the full 190ms POR timeout period.
Is the ISL88001IH23Z-T pin-compatible with other members of the ISL8800x family?
Yes, the ISL88001IH23Z-T shares identical 3-lead SOT-23 pinout (GND–RST–VDD) with all ISL88001 variants in SOT-23 packaging, including ISL88001IH46Z-T and ISL88001IH22Z-T. However, it is not pin-compatible with ISL88002 (open-drain RST) or ISL88003 (active-high RST) variants due to differing reset polarity and drive architecture.
What is the thermal resistance (θJA) of the ISL88001IH23Z-T in its SOT-23 package?
The ISL88001IH23Z-T in 3-lead SOT-23 package has a typical junction-to-ambient thermal resistance (θJA) of 590°C/W when mounted on a standard test board in free air. This value reflects the package's inherent thermal limitations and informs thermal design margins for high-density PCB layouts where ambient temperature may approach +85°C.
ISL88001IH23Z-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- 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:
- SOT-23-3
ISL88001IH23Z-T FAQ
1.How can I place an order for ISL88001IH23Z-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IH23Z-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 ISL88001IH23Z-T reliable?
The price and inventory of ISL88001IH23Z-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IH23Z-T is usually 5 days.
3.What payment methods are accepted for ISL88001IH23Z-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IH23Z-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IH23Z-T?
ISL88001IH23Z-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IH23Z-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 ISL88001IH23Z-T?
For technical support, including ISL88001IH23Z-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IH23Z-T requirements.
6.How does Aetrix verify that ISL88001IH23Z-T is sourced from the original manufacturer or authorized distributors?
All ISL88001IH23Z-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 ISL88001IH23Z-T meets industry standards.
7.What is the process for return or replacement of ISL88001IH23Z-T?
All ISL88001IH23Z-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IH23Z-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 ISL88001IH23Z-T part is unused and in its original packaging.
Return procedure for ISL88001IH23Z-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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