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Renesas ISL88001IH23Z-TK
- Part No.:
- ISL88001IH23Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88001IH23Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,899
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Product details
Overview
ISL88001IH23Z-TK from Renesas Electronics is an ultra-low-power 3-pin voltage supervisor IC with a fixed 2.32V reset threshold, 160nA supply current, ±1.2% threshold accuracy, and 190ms power-on reset timeout. It operates from VDD = 1V to 5.5V and delivers push-pull active-high reset output in a 3-lead SOT-23 package for microcontroller power sequencing in portable equipment.
For engineers reviewing the ISL88001IH23Z-TK datasheet, ISL88001IH23Z-TK pinout, ISL88001IH23Z-TK application, or ISL88001IH23Z-TK equivalent, key selection criteria include its precise 2.32V trip point, guaranteed reset assertion down to VDD = 1V, immunity to supply transients, and compatibility with battery-powered systems requiring long-term reliability and minimal quiescent current.
Technical Context
The ISL88001IH23Z-TK integrates a precision voltage reference, comparator with hysteresis, and POR circuitry into a single-die solution. Its internal architecture ensures reset assertion at power-up when VDD reaches 1V and maintains reset until VDD exceeds 2.32V for ≥190ms, preventing premature MCU operation during brownout or slow-ramp conditions.
Designed specifically for low-voltage monitoring of 2.5V and 3.3V rails, it uses factory-trimmed threshold calibration to achieve ±1.2% accuracy over –40°C to +85°C and exhibits <0.48mV/°C temperature coefficient. The push-pull RST output drives high (to VDD) upon valid supply, eliminating external pull-up components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V nominal, ±1.2% accuracy - enables precise supervision of 2.5V logic rails with margin against undervoltage faults. |
| Supply Current | 160nA typical at 1.8V - extends battery life in always-on monitoring applications without compromising response time. |
| POR Timeout | 190ms typical - ensures stable power rail establishment before releasing reset to microcontrollers or FPGAs. |
| Operating Voltage Range | 1.8V to 2.75V (for 2.32V variant) - supports direct connection to low-voltage LDO outputs without level-shifting. |
| Reset Output Type | Push-pull active-high - provides rail-to-rail drive capability without external pull-up resistors or timing uncertainty. |
| Reset Valid Down To | VDD = 1V - guarantees reliable reset assertion even during deep brownout or battery depletion scenarios. |
| Package | 3-lead SOT-23 - enables compact placement on space-constrained PCBs while maintaining standard reflow compatibility. |
Pinout & Package
ISL88001IH23Z-TK is housed in a Pb-free 3-lead SOT-23 package (JEDEC TO-236), with 0.95mm lead pitch, 2.92mm × 1.30mm body dimensions, and MSL3 rating per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and POR circuit; must be connected to system ground plane for accurate threshold sensing. |
| 2 | RST | Push-pull active-high reset output; driven to VDD when supply is valid, pulled low only during reset assertion - no external pull-up required. |
| 3 | VDD | Power supply input and monitored voltage node; supplies IC bias and serves as analog input to internal voltage reference comparator. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.32V threshold | Factory-trimmed for ±1.2% accuracy across –40°C to +85°C - eliminates need for external resistor networks or calibration. |
| 160nA supply current | Enables multi-year operation from coin-cell batteries in IoT sensors and wearables without sacrificing reset reliability. |
| 190ms POR timeout | Guarantees sufficient delay for oscillator stabilization and register initialization in ARM Cortex-M and RISC-V microcontrollers. |
| Reset valid down to 1V | Ensures deterministic behavior during battery sag or cold-start conditions where VDD may dip below nominal operating range. |
| No external components | Self-contained supervision eliminates BOM cost, layout area, and failure modes associated with discrete RC networks or pull-ups. |
Applications
| Battery-Powered Microcontroller Systems | Low-Voltage FPGA Configuration Monitoring |
|---|---|
|
Use Scenario: Supervising 2.5V core supply of an STM32L4 MCU in a wireless sensor node powered by CR2032. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout detection with 2.32V threshold aligned to MCU's minimum operating voltage. Use Value: Prevents erratic boot behavior by holding reset until VDD stabilizes above 2.32V for 190ms, extending usable battery life via 160nA quiescent draw. |
Use Scenario: Ensuring clean configuration load for Xilinx Spartan-7 FPGA powered from 2.5V LDO during cold start. IC Role / Device Role / Timing Role: Active-high reset generator asserting reset until 2.5V rail reaches 2.32V and remains stable for POR timeout. Use Value: Guarantees FPGA configuration completes before logic initialization begins, avoiding bitstream corruption due to marginal supply voltage. |
| Portable Medical Devices | Industrial Sensor Nodes |
|
Use Scenario: Power sequencing control in a handheld pulse oximeter using TI MSP430FR5994 with 2.5V supply. IC Role / Device Role / Timing Role: Single-supply monitor delivering push-pull reset signal compatible with MSP430's active-high /RST pin. Use Value: Eliminates external pull-up resistor and reduces board area by 30% versus SC-70 alternatives, while maintaining 1V reset validity for low-battery alerts. |
Use Scenario: Supervising 3.3V supply of an ADuCM3029 sensor microcontroller in a battery-operated environmental monitor. IC Role / Device Role / Timing Role: Low-quiescent supervisor detecting undervoltage on 3.3V rail with 2.32V threshold to trigger graceful shutdown before brownout. Use Value: Enables early warning of battery depletion by asserting reset at 2.32V - well above the 2.1V minimum for ADuCM3029 - preserving data integrity. |
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 fixed threshold, 1.2µA supply current, open-drain active-low RST, SOT-23-3 | Requires external pull-up; higher current draw limits battery life in always-on designs | Select when legacy MAX809 footprint compatibility is required and 2.5V threshold suffices. |
| TPS3801K33DBVR | 3.3V fixed threshold, 1.8µA supply current, push-pull active-low RST, SOT-23-3 | Higher threshold and current incompatible with 2.5V rail supervision or ultra-low-power use cases | Choose only if supervising 3.3V systems where 2.32V trip is not needed and higher IQ is acceptable. |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88001IH23Z-TK offers 10× lower quiescent current and a precisely matched 2.32V threshold for 2.5V rails - enabling longer battery runtime and tighter undervoltage protection without external components or layout changes.
Availability
ISL88001IH23Z-TK is available at Aetrix Electronics and suitable for battery-powered microcontroller systems, portable medical devices, industrial sensor nodes, and low-voltage FPGA configuration monitoring requiring stable component supply and long-term lifecycle support.
Supply support for ISL88001IH23Z-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 analog, mixed-signal, and embedded processing solutions for automotive, industrial, and IoT markets.
The ISL88001IH23Z-TK belongs to Renesas' Ultra Low Power Voltage Supervisor family, engineered specifically for energy-constrained applications demanding nanoscale quiescent current, high threshold accuracy, and robust brownout immunity in miniature packages.
FAQ
What is the exact reset threshold voltage of the ISL88001IH23Z-TK?
The ISL88001IH23Z-TK has a nominal reset threshold voltage of 2.32V, with guaranteed accuracy of ±1.2% over the full industrial temperature range (–40°C to +85°C). This value is factory-trimmed and specified in the Electrical Specifications table on page 8 of FN6174 Rev 3.00.
Does the ISL88001IH23Z-TK require external components for operation?
No, the ISL88001IH23Z-TK requires no external components. Its push-pull active-high RST output eliminates the need for a pull-up resistor, and its internal voltage reference and POR circuitry are fully integrated - enabling drop-in deployment with only GND, VDD, and RST connections.
What is the minimum supply voltage at which the ISL88001IH23Z-TK asserts reset?
The ISL88001IH23Z-TK asserts reset down to VDD = 1V, as confirmed in the datasheet's "Reset Signal Valid Down to VDD = 1V" feature statement and Absolute Maximum Ratings section. This ensures reliable reset behavior during deep brownout or battery depletion events.
Is the ISL88001IH23Z-TK pin-compatible with other members of the ISL8800x family?
Yes, the ISL88001IH23Z-TK shares identical 3-lead SOT-23 pinout and package dimensions with all ISL88001, ISL88002, and ISL88003 variants in SOT-23 packaging. Pin 1 = GND, Pin 2 = RST, Pin 3 = VDD - consistent across the family regardless of threshold or output type.
What is the power-on reset timeout duration for the ISL88001IH23Z-TK?
The ISL88001IH23Z-TK features a typical power-on reset timeout of 190ms, with a guaranteed range of 140ms to 260ms over temperature and process variation. This delay ensures microcontrollers and FPGAs have sufficient time to stabilize clocks and initialize registers before release from reset.
ISL88001IH23Z-TK 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-TK FAQ
1.How can I place an order for ISL88001IH23Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IH23Z-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 ISL88001IH23Z-TK reliable?
The price and inventory of ISL88001IH23Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IH23Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88001IH23Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IH23Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IH23Z-TK?
ISL88001IH23Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IH23Z-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 ISL88001IH23Z-TK?
For technical support, including ISL88001IH23Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IH23Z-TK requirements.
6.How does Aetrix verify that ISL88001IH23Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88001IH23Z-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 ISL88001IH23Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88001IH23Z-TK?
All ISL88001IH23Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IH23Z-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 ISL88001IH23Z-TK part is unused and in its original packaging.
Return procedure for ISL88001IH23Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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