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Renesas ISL88002IH23Z-T7A
- Part No.:
- ISL88002IH23Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88002IH23Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,796
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Product details
Overview
ISL88002IH23Z-T7A from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with open-drain active-low reset output, 2.32V fixed threshold, ±1.2% accuracy, 160nA supply current, and 190ms power-on reset timeout - used for reliable power-up sequencing and brownout protection in microcontroller-based portable systems.
For engineers reviewing the ISL88002IH23Z-T7A datasheet, ISL88002IH23Z-T7A pinout, ISL88002IH23Z-T7A application, or ISL88002IH23Z-T7A equivalent, key selection criteria include reset output type (open-drain), VDD trip point tolerance, minimum operating voltage (1V), thermal stability (0.48mV/°C), and compatibility with SOT-23 footprint constraints.
Technical Context
The ISL88002IH23Z-T7A implements a precision bandgap reference and comparator architecture to monitor VDD against a factory-trimmed 2.32V threshold with hysteresis, asserting reset when VDD falls below VTHVDD or during initial power-up at VDD ≥ 1V. Its internal POR circuit ensures deterministic initialization before system operation.
It features an open-drain RST output requiring an external pull-up resistor (5kΩ–100kΩ), supports operation down to 1V supply, and maintains ±1.2% threshold accuracy across –40°C to +85°C - enabling robust supervision in battery-powered and low-voltage embedded applications without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V nominal, ±1.2% accuracy - ensures precise detection of 2.3V rail collapse without false triggers. |
| Supply Current | 160nA typical at 1.8V - enables multi-year battery life in always-on monitoring circuits. |
| POR Timeout | 190ms typical - guarantees sufficient delay for power stabilization before releasing reset to µC. |
| Operating Voltage | 1.8V to 2.75V range - matches 2.3V LDO outputs and low-voltage logic rails. |
| Reset Output Type | Active-low open-drain - allows wired-OR configuration and flexible voltage-level translation via external pull-up. |
| Temperature Range | –40°C to +85°C industrial grade - validated for automotive cabin and industrial control environments. |
| Threshold Hysteresis | 1% - prevents oscillation during slow-rising/falling VDD transitions near trip point. |
| Threshold Drift | 0.48mV/°C - enables stable operation across temperature without recalibration. |
Pinout & Package
ISL88002IH23Z-T7A is housed in a Pb-free 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), with 1.30mm × 2.92mm footprint, 0.95mm lead pitch, and 0.38mm max height - compatible with standard SMT reflow profiles including Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | IC substrate and comparator reference node; must be connected to system ground plane for accurate threshold sensing. |
| 2 (RST) | Open-drain reset output | Active-low signal asserted when VDD < 2.32V or during POR; requires external pull-up to host VDD or logic rail. |
| 3 (VDD) | Supply input & monitored rail | Single-pin dual function: powers the IC and serves as the voltage source for threshold comparison. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 160nA enables >10-year coin-cell operation in IoT sensor nodes. |
| Factory-trimmed threshold | 2.32V ±1.2% eliminates need for external resistive dividers or calibration. |
| No external components required | Reduces BOM count and PCB area vs. discrete supervisor solutions. |
| Immunity to supply transients | Hysteresis and internal filtering prevent false resets during ESD or load-switching noise. |
| Pb-free SOT-23 package | RoHS-compliant matte tin (e3) termination supports SnPb and Pb-free soldering. |
| Valid reset down to 1V | Ensures supervision remains active even during deep brownout conditions. |
Applications
| Microcontroller Power Sequencing | Battery-Powered Wearables |
|---|---|
Use Scenario: Ensuring clean boot of ARM Cortex-M0+ MCU after Li-ion battery voltage recovers from deep discharge. IC Role / Device Role / Timing Role: Voltage supervisor providing active-low reset signal synchronized to 2.3V LDO output. Use Value: Prevents firmware execution at unstable VDD by holding reset until 2.32V threshold is exceeded for 190ms. |
Use Scenario: Monitoring coin-cell voltage in Bluetooth LE hearables to trigger graceful shutdown before cutoff. IC Role / Device Role / Timing Role: Low-current supervisor detecting 2.3V battery sag during RF transmission bursts. Use Value: 160nA supply current extends usable battery life by >20% versus higher-IDD alternatives. |
| Industrial Sensor Nodes | Smart Meter Backup Systems |
Use Scenario: Supervising 2.3V analog front-end supply in wireless vibration sensors deployed in harsh environments. IC Role / Device Role / Timing Role: Open-drain reset output pulled up to 3.3V logic rail to interface with isolated µC reset input. Use Value: ±1.2% threshold accuracy over –40°C to +85°C eliminates field failures due to temperature-induced trip drift. |
Use Scenario: Validating supercapacitor backup voltage before enabling real-time clock and memory retention circuitry. IC Role / Device Role / Timing Role: Supervisor monitoring 2.3V backup rail derived from supercapacitor discharge curve. Use Value: Reset assertion at 2.32V ensures SRAM data integrity is preserved until backup energy falls below safe margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SUR+T | 2.93V fixed threshold, 1.2µA IDD, SOT-23-3, push-pull RST | Higher threshold and 7.5× higher supply current; no open-drain option | Select when 2.93V rail supervision is needed and push-pull drive suffices. |
| TPS3808G125DBVR | 1.25V threshold, adjustable via external resistor, 1.1µA IDD, SOT-23-6 | Lower threshold, adjustable, larger package, higher current, different pinout | Select when programmable threshold or tighter 0.5% accuracy is required despite higher cost and size. |
Compared with MAX809SUR+T and TPS3808G125DBVR, the ISL88002IH23Z-T7A delivers superior ultra-low-power operation (160nA vs. µA range) and exact 2.32V trip matching common low-voltage LDOs - making it optimal for space-constrained, battery-critical designs where open-drain flexibility and minimal current draw are decisive.
Availability
ISL88002IH23Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, battery-powered wearables, and industrial sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL88002IH23Z-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, low-power microcontrollers, analog, and power management solutions for automotive, industrial, and IoT markets.
The ISL88002IH23Z-T7A belongs to Renesas' Ultra Low Power Voltage Supervisor family, designed specifically to replace discrete reset circuits in space- and power-constrained embedded systems while ensuring reliable power-on reset and brownout protection.
FAQ
What is the reset output configuration of the ISL88002IH23Z-T7A?
The ISL88002IH23Z-T7A features an active-low open-drain RST output. This requires an external pull-up resistor (5kΩ–100kΩ) to a logic rail or VDD, enabling wired-OR reset bus configurations and level-shifting flexibility - unlike push-pull variants such as ISL88001 or ISL88003.
Does the ISL88002IH23Z-T7A require external components to operate?
No, the ISL88002IH23Z-T7A operates autonomously with only its three pins (GND, RST, VDD). The open-drain RST output does require an external pull-up resistor, but no capacitors, resistors for threshold setting, or additional biasing components are needed - simplifying design and reducing BOM count.
What is the minimum supply voltage at which the ISL88002IH23Z-T7A asserts reset?
The ISL88002IH23Z-T7A asserts reset down to VDD = 1V, ensuring supervision remains functional even during severe brownout conditions. Its POR circuit activates at 1V, and the 2.32V threshold comparison remains valid across the full 1.8V–2.75V operating range specified for this variant.
How accurate is the 2.32V threshold of the ISL88002IH23Z-T7A over temperature?
The ISL88002IH23Z-T7A maintains ±1.2% threshold accuracy over –40°C to +85°C, with a temperature coefficient of 0.48mV/°C. At +85°C, the worst-case deviation from 2.32V is within ±28mV - verified per datasheet Figure 8 and Electrical Specifications table.
Is the ISL88002IH23Z-T7A pin-compatible with other members of the ISL8800x family?
Yes, all ISL88001/002/003 variants share identical 3-lead SOT-23 pinouts (GND, RST, VDD) and SC-70 footprints. The ISL88002IH23Z-T7A can be substituted for ISL88001IH23Z-T7A or ISL88003IH23Z-T7A on the same PCB - only the RST output type (open-drain vs. push-pull) and internal logic differ.
ISL88002IH23Z-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:
- 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:
- SOT-23-3
ISL88002IH23Z-T7A FAQ
1.How can I place an order for ISL88002IH23Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IH23Z-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 ISL88002IH23Z-T7A reliable?
The price and inventory of ISL88002IH23Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IH23Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88002IH23Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IH23Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IH23Z-T7A?
ISL88002IH23Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IH23Z-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 ISL88002IH23Z-T7A?
For technical support, including ISL88002IH23Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IH23Z-T7A requirements.
6.How does Aetrix verify that ISL88002IH23Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88002IH23Z-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 ISL88002IH23Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88002IH23Z-T7A?
All ISL88002IH23Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IH23Z-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 ISL88002IH23Z-T7A part is unused and in its original packaging.
Return procedure for ISL88002IH23Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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