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Renesas ISL88002IH44Z-T7A
- Part No.:
- ISL88002IH44Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88002IH44Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:382
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Product details
Overview
ISL88002IH44Z-T7A from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with open-drain active-low reset output, 4.38V fixed threshold, ±1.2% accuracy, 190ms power-on reset timeout, and operation down to VDD = 1V. It monitors +4.38V power rails in microcontroller systems, portable equipment, and industrial controllers.
For engineers reviewing the ISL88002IH44Z-T7A datasheet, ISL88002IH44Z-T7A pinout, ISL88002IH44Z-T7A application, or ISL88002IH44Z-T7A equivalent, key selection criteria include its open-drain RST configuration, SC-70/SOT-23 package compatibility, 160nA supply current, and immunity to power-supply transients in battery-sensitive designs.
Technical Context
The ISL88002IH44Z-T7A implements a precision bandgap-based voltage reference comparator with hysteresis to prevent noise-induced reset chatter. Its internal POR circuit asserts reset at VDD ≥ 1V and holds it for 190ms after VDD exceeds 4.38V, ensuring stable microprocessor initialization.
This device operates as a single-supply monitor with no external components required. The open-drain RST output requires an external pull-up resistor (5kΩ–100kΩ) and supports interfacing with multiple logic families while maintaining low quiescent current across -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.38V nominal, ±1.2% accuracy ensures reliable detection of +4.38V rail brownouts without false triggers. |
| Supply Current | 160nA typical at 1.8V enables multi-year battery life in always-on monitoring applications. |
| POR Timeout | 190ms minimum delay guarantees microcontroller core and peripherals stabilize before release from reset. | Operating Voltage Range | 1.8V to 5.5V supports direct connection to common logic supplies without level-shifting. |
| Reset Output Type | Open-drain active-low RST allows wired-OR configurations and flexible logic-level translation via external pull-up. |
| Min Valid VDD | Reset signal remains valid down to VDD = 1V, enabling supervision during deep brownout conditions. |
| Temperature Range | -40°C to +85°C industrial grade rating suits embedded control and portable electronics environments. |
Pinout & Package
ISL88002IH44Z-T7A is housed in a Pb-free 3-lead SOT-23 package (JEDEC TO-236), measuring 2.92mm × 1.30mm × 1.00mm, with gull-wing leads and matte tin (e3) termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset logic; must be connected to system ground plane for accurate threshold sensing. |
| 2 | RST | Open-drain active-low reset output; sinks current when asserted; requires external pull-up resistor (5kΩ–100kΩ) to host logic rail. |
| 3 | VDD | Power supply input and monitored voltage source; connects directly to the +4.38V rail being supervised. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 160nA typical enables integration into energy-harvesting and coin-cell-powered systems without measurable battery drain. |
| Fixed 4.38V threshold | Factory-trimmed trip point eliminates need for external resistive dividers, reducing BOM count and layout area. |
| 190ms POR timeout | Guaranteed minimum delay ensures FPGA configuration, oscillator startup, and register initialization complete before system release. |
| Open-drain RST output | Supports multi-drop reset buses and mixed-voltage systems by allowing pull-up to any compatible logic rail (1.8V–5V). |
| Immunity to transients | Internal filtering and hysteresis reject fast supply glitches up to 100ns, preventing spurious resets in noisy industrial environments. |
Applications
| Microprocessor Power-Up Control | Battery-Powered Sensor Node |
|---|---|
Use Scenario: Ensuring safe boot sequence for ARM Cortex-M microcontrollers powered from a +4.38V LDO. IC Role / Device Role / Timing Role: Voltage supervisor providing active-low reset assertion until VDD stabilizes above 4.38V for ≥190ms. Use Value: Prevents code execution under marginal voltage, eliminating flash corruption and peripheral lockup during cold start. | Use Scenario: Monitoring a lithium-thionyl chloride cell powering a wireless environmental sensor with 10-year target lifetime. IC Role / Device Role / Timing Role: Low-quiescent-current supervisor asserting reset if battery voltage drops below 4.38V during discharge. Use Value: 160nA IDD extends usable battery capacity by >15% versus standard supervisors, directly increasing field deployment duration. |
| Industrial PLC I/O Module | Handheld Medical Diagnostic Device |
Use Scenario: Supervising +4.38V auxiliary supply feeding isolated CAN transceivers and ADC references in a factory-floor controller. IC Role / Device Role / Timing Role: Single-point voltage monitor with open-drain RST tied to system-wide reset bus shared with other modules. Use Value: Immunity to EFT bursts and supply transients prevents false resets during motor switching or relay actuation events. | Use Scenario: Enabling reliable power sequencing in a portable ultrasound probe with dual-voltage analog front-end and digital processing core. IC Role / Device Role / Timing Role: Reset generator holding processor in reset until +4.38V analog supply reaches regulation and settles within tolerance. Use Value: Valid reset assertion down to VDD = 1V ensures deterministic behavior even during rapid battery depletion or thermal shutdown 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 | 4.63V threshold, ±2.5% accuracy, 140ms POR, SOT-23-3 package, push-pull RST output | Higher threshold and looser accuracy; lacks open-drain flexibility for multi-rail reset buses | Select when push-pull drive is preferred and 4.63V supervision suffices; verify timing compatibility with host MCU reset hold time. |
| TPS3808G33DBVR | 3.3V threshold, adjustable POR delay (200ms/400ms), 1.5µA IDD, SOT-23-6 package, open-drain RST | Lower threshold and higher current; requires external capacitor for delay tuning and occupies larger footprint | Choose when programmable delay or tighter 3.3V rail supervision is needed; accept higher quiescent current for enhanced configurability. |
Compared with MAX809SEUR+T and TPS3808G33DBVR, the ISL88002IH44Z-T7A delivers superior threshold accuracy (±1.2% vs ±2.5% or ±0.5%), lowest supply current (160nA vs 1.5µA), and exact 4.38V trip matching common LDO outputs-making it optimal for precision, ultra-low-power +4.38V supervision.
Availability
ISL88002IH44Z-T7A is available at Aetrix Electronics and suitable for microcontroller systems, portable/battery-powered equipment, and industrial controllers requiring stable component supply and long-term production continuity.
Supply support for ISL88002IH44Z-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 ISL88002IH44Z-T7A belongs to Renesas' Ultra Low Power Voltage Supervisor family, designed specifically for cost-sensitive, space-constrained applications where precision reset generation and nanoscale quiescent current are critical.
FAQ
What is the reset threshold voltage of the ISL88002IH44Z-T7A?
The ISL88002IH44Z-T7A has a fixed reset threshold voltage of 4.38V, with ±1.2% accuracy over the -40°C to +85°C temperature range. This value is factory-trimmed and specified in the Electrical Specifications table on page 8 of the FN6174 datasheet. The device asserts reset when VDD falls below this threshold and releases reset after VDD rises above it for the 190ms POR timeout period.
Does the ISL88002IH44Z-T7A require external components to operate?
No, the ISL88002IH44Z-T7A requires no external components for basic operation. It integrates the voltage reference, comparator, and POR timer internally. However, because it features an open-drain RST output, an external pull-up resistor (5kΩ–100kΩ) is mandatory to establish the high state of the reset signal. No capacitors, resistors, or additional ICs are needed for threshold setting or timing.
What package type and dimensions does the ISL88002IH44Z-T7A use?
The ISL88002IH44Z-T7A uses a Pb-free 3-lead SOT-23 package (JEDEC TO-236), with outline drawing P3.064. Its dimensions are 2.92mm × 1.30mm × 1.00mm, and it features gull-wing leads with matte tin (e3) termination. This compact footprint matches industry-standard SOT-23 footprints and supports automated placement and reflow soldering per IPC/JEDEC J-STD-020.
How does the ISL88002IH44Z-T7A differ from the ISL88001IH44Z-T7A?
The ISL88002IH44Z-T7A differs from the ISL88001IH44Z-T7A solely in its reset output configuration: ISL88002IH44Z-T7A provides an open-drain active-low RST output, while ISL88001IH44Z-T7A provides a push-pull active-low RST output. Both share identical 4.38V threshold, 160nA supply current, 190ms POR timeout, and SOT-23 packaging. The open-drain version requires an external pull-up; the push-pull version drives both high and low actively.
Is the ISL88002IH44Z-T7A RoHS compliant and lead-free?
Yes, the ISL88002IH44Z-T7A is RoHS compliant and fully lead-free. Per Note 4 in the Ordering Information section of the FN6174 datasheet, it employs 100% matte tin plate plus anneal (e3 termination finish), compatible with both SnPb and Pb-free soldering processes. It meets IPC/JEDEC J-STD-020 moisture sensitivity requirements and is classified per MSL standards documented on the device information page.
ISL88002IH44Z-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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.38V
- 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
ISL88002IH44Z-T7A FAQ
1.How can I place an order for ISL88002IH44Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IH44Z-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 ISL88002IH44Z-T7A reliable?
The price and inventory of ISL88002IH44Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IH44Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88002IH44Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IH44Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IH44Z-T7A?
ISL88002IH44Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IH44Z-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 ISL88002IH44Z-T7A?
For technical support, including ISL88002IH44Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IH44Z-T7A requirements.
6.How does Aetrix verify that ISL88002IH44Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88002IH44Z-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 ISL88002IH44Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88002IH44Z-T7A?
All ISL88002IH44Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IH44Z-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 ISL88002IH44Z-T7A part is unused and in its original packaging.
Return procedure for ISL88002IH44Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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