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Renesas ISL88001IH23Z-T7A
- Part No.:
- ISL88001IH23Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88001IH23Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:134
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Product details
Overview
ISL88001IH23Z-T7A from Renesas is a 3-lead SOT-23 ultra-low-power voltage supervisor with 2.32V fixed reset threshold, ±1.2% accuracy, 160nA supply current, and 190ms power-on reset timeout. It provides active-high push-pull reset assertion for microprocessor power sequencing in battery-powered instrumentation and portable embedded systems.
For engineers reviewing the ISL88001IH23Z-T7A datasheet, ISL88001IH23Z-T7A pinout, ISL88001IH23Z-T7A application, or ISL88001IH23Z-T7A equivalent, key selection criteria include trip-point accuracy at low VDD (valid down to 1V), minimal quiescent current, SOT-23 footprint compatibility, and absence of external components.
Technical Context
The ISL88001IH23Z-T7A 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 until VDD exceeds 2.32V for ≥190ms.
This device operates as a single-supply monitor with no external biasing or timing components required. The push-pull RST output drives high (to VDD) during reset assertion and low (to GND) otherwise, eliminating need for external pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V ±1.2% - precisely monitors 2.5V rail brownout without calibration. |
| Supply Current | 160nA typical at 1.8V - enables >10-year battery life in always-on monitoring. |
| POR Timeout | 190ms nominal - ensures stable power-up before µP release, per JEDEC JESD8-12. |
| Operating Range | -40°C to +85°C - qualified for industrial temperature environments. |
| Reset Validity | Down to VDD = 1V - guarantees reset assertion even during deep brownout. |
| Output Type | Active-high push-pull - eliminates external pull-up resistor and reduces BOM count. |
| Package | 3-lead SOT-23 (P3.064) - standard footprint compatible with automated assembly. |
Pinout & Package
ISL88001IH23Z-T7A uses a 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), measuring 2.92mm × 1.30mm × 1.00mm, RoHS-compliant matte tin (e3) termination, MSL3 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | IC ground reference and thermal path; must be connected to system ground plane for stability. |
| 2 | RST | Active-high push-pull reset output; drives to VDD when asserted, to GND when released. |
| 3 | VDD | Power supply input and monitored voltage node; supplies IC and serves as threshold reference. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.32V threshold | Eliminates external resistor divider; supports 2.5V rail supervision with margin. |
| ±1.2% accuracy over temp | Reduces need for guard-banding in reset timing budgets across -40°C to +85°C. |
| 160nA supply current | Enables direct connection to coin-cell or energy-harvesting sources without regulation. |
| No external components | Reduces PCB area by ≥1.5mm² and eliminates risk of resistor drift or capacitor aging. |
| Immunity to transients | Withstands >100mV/ns dV/dt on VDD without false reset, verified per IEC 61000-4-4. |
Applications
| Portable Medical Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: Battery-powered glucose meter with BLE radio and low-power MCU. IC Role / Device Role / Timing Role: Monitors 2.5V LDO output; asserts active-high reset to hold MCU in reset until rail stabilizes post-battery insertion. Use Value: 160nA current draw extends CR2032 life beyond 5 years; 2.32V threshold ensures reliable detection of 2.5V rail collapse below 2.4V. |
Use Scenario: DIN-rail mounted analog input module operating from 24VDC converted to 3.3V/2.5V rails. IC Role / Device Role / Timing Role: Supervises 2.5V digital core rail; triggers system-wide reset if voltage sags due to EMI or load surge. Use Value: ±1.2% accuracy prevents nuisance resets during 100mV line ripple; push-pull output interfaces directly with FPGA reset controller. |
| Handheld Test Instrument | Smart Energy Meter |
Use Scenario: Battery-backed multimeter with real-time clock and EEPROM logging. IC Role / Device Role / Timing Role: Provides POR and brownout protection for ARM Cortex-M0+ MCU and RTC oscillator startup. Use Value: 190ms timeout aligns with crystal stabilization time; reset valid down to 1V prevents corruption during battery swap. |
Use Scenario: Revenue-grade electricity meter with isolated power supply and tamper-detection logic. IC Role / Device Role / Timing Role: Supervises 3.3V microcontroller supply; asserts reset on AC dropout or DC-DC fault to preserve metering integrity. Use Value: SOT-23 footprint fits constrained space near isolation barrier; hysteresis prevents oscillation during slow VDD recovery. |
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, ±2.5% accuracy, 1.6µA supply current, SOT-23-3 | Higher threshold and current; less accurate; suitable only where 2.5V rail tolerance allows. | Select only if 2.5V nominal rail and higher quiescent current are acceptable. |
| TPS3801K33DBVR | 3.3V threshold, ±0.5% accuracy, 1.1µA supply current, SOT-23-3 | Higher threshold and current; tighter accuracy but incompatible with 2.5V rail monitoring. | Use only for 3.3V systems requiring higher precision; not a functional substitute for 2.32V monitoring. |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88001IH23Z-T7A delivers 10× lower supply current and exact 2.32V trip matching common 2.5V LDO tolerances, enabling longer battery life and tighter brownout detection without design compromise.
Availability
ISL88001IH23Z-T7A is available at Aetrix Electronics and suitable for portable medical devices, industrial I/O modules, handheld test equipment, and smart energy meters requiring stable component supply and long-term manufacturability.
Supply support for ISL88001IH23Z-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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The ISL88001 series belongs to Renesas' ultra-low-power supervisor product line, designed specifically for battery-critical and space-constrained embedded systems requiring precise, zero-component voltage monitoring.
FAQ
What is the reset output behavior of the ISL88001IH23Z-T7A?
The ISL88001IH23Z-T7A features an active-high push-pull RST output. When VDD falls below 2.32V or during power-on, RST is driven high (to VDD); when VDD rises above the threshold and remains stable for 190ms, RST is driven low (to GND). This eliminates need for external pull-up resistors and ensures clean, fast edge transitions.
Does the ISL88001IH23Z-T7A require external components for operation?
No, the ISL88001IH23Z-T7A requires no external components. Its internal voltage reference, comparator, POR timer, and push-pull driver are fully integrated. Only decoupling capacitance on VDD (recommended 100nF) is advised for noise immunity - no resistors, capacitors, or diodes are needed for basic supervision functionality.
What is the minimum VDD voltage at which ISL88001IH23Z-T7A can assert reset?
The ISL88001IH23Z-T7A asserts reset down to VDD = 1V, as confirmed in the datasheet's Absolute Maximum Ratings and Principles of Operation sections. This ensures reliable brownout detection even during severe undervoltage conditions where other supervisors may fail to trigger.
Is the ISL88001IH23Z-T7A pin-compatible with MAX809 variants?
Yes, the ISL88001IH23Z-T7A is pin-compatible with MAX809-series SOT-23-3 voltage supervisors per the datasheet's "Pin Compatible with MAX803, MAX809, MAX810" statement. However, note that ISL88001IH23Z-T7A has active-high push-pull output and 2.32V threshold, whereas MAX809 variants offer different thresholds and active-low outputs - electrical interface must be verified per schematic.
What is the thermal resistance (θJA) of the ISL88001IH23Z-T7A in its SOT-23 package?
The ISL88001IH23Z-T7A in 3-lead SOT-23 package has a typical junction-to-ambient thermal resistance (θJA) of 590°C/W, measured per JEDEC JESD51-2A on a high-thermal-conductivity test board in free air. This value supports operation up to +85°C ambient under typical PCB layout conditions with minimal copper pour.
ISL88001IH23Z-T7A 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-T7A FAQ
1.How can I place an order for ISL88001IH23Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IH23Z-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 ISL88001IH23Z-T7A reliable?
The price and inventory of ISL88001IH23Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IH23Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88001IH23Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IH23Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IH23Z-T7A?
ISL88001IH23Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IH23Z-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 ISL88001IH23Z-T7A?
For technical support, including ISL88001IH23Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IH23Z-T7A requirements.
6.How does Aetrix verify that ISL88001IH23Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88001IH23Z-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 ISL88001IH23Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88001IH23Z-T7A?
All ISL88001IH23Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IH23Z-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 ISL88001IH23Z-T7A part is unused and in its original packaging.
Return procedure for ISL88001IH23Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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