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Renesas ISL88001IH22Z-T7A
- Part No.:
- ISL88001IH22Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88001IH22Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,925
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Product details
Overview
ISL88001IH22Z-T7A from Renesas Electronics is a single-channel, ultra-low-power voltage supervisor IC in 3-lead SOT-23 package, featuring a fixed 2.19V reset threshold with ±1.2% accuracy, 160nA supply current at 1.8V, and 190ms power-on reset timeout. It monitors VDD supply voltage and asserts an active-high push-pull reset signal to microcontrollers during brownout or startup, supporting portable/battery-powered systems requiring high reliability and minimal quiescent power.
For engineers reviewing the ISL88001IH22Z-T7A datasheet, ISL88001IH22Z-T7A pinout, ISL88001IH22Z-T7A application, or ISL88001IH22Z-T7A equivalent, key selection criteria include its precise 2.19V trip point, operation down to VDD = 1V, push-pull RST output eliminating external pull-up, and compatibility with industrial temperature range (–40°C to +85°C) in space-constrained designs.
Technical Context
The ISL88001IH22Z-T7A implements a precision bandgap-based voltage reference comparator with internal hysteresis to prevent noise-induced reset chatter. Its POR circuit activates at VDD = 1V and holds reset asserted until VDD exceeds 2.19V for ≥190ms, ensuring stable microcontroller initialization.
This device operates as a dedicated single-supply monitor with no external components required. The push-pull RST output drives HIGH (to VDD) when VDD ≥ 2.19V and LOW (to GND) when VDD < 2.19V, providing immediate, rail-to-rail reset signaling without pull-up resistors or level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.19V ±1.2% - precisely monitors 2.2V-class supplies; ensures reliable detection of 2.19V brownout events |
| Supply Current | 160nA at VDD = 1.8V - enables multi-year battery life in always-on monitoring applications |
| POR Timeout | 190ms typical - guarantees sufficient delay for power rail stabilization before releasing reset |
| Operating Voltage Range | 1.8V to 2.75V - supports low-voltage logic domains while maintaining supervision integrity |
| Reset Output Type | Active-high push-pull - eliminates need for external pull-up resistor; drives full VDD logic HIGH |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade embedded systems and portable equipment |
| Reset Valid Down To | VDD = 1V - ensures reset assertion even during deep brownout or ultra-low-power wake-up sequences |
Pinout & Package
ISL88001IH22Z-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 driver; must be connected to system ground plane |
| 2 | RST | Active-high push-pull reset output; drives HIGH to VDD when VDD ≥ 2.19V, LOW to GND when VDD < 2.19V |
| 3 | VDD | Power supply input and monitored voltage source; supplies IC bias and serves as analog input to threshold comparator |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.19V threshold | Eliminates external resistor network; enables drop-in replacement for 2.2V supply rails without recalibration |
| 160nA supply current | Reduces battery drain by >90% vs. legacy supervisors; extends shelf life of sealed IoT sensors |
| Push-pull RST output | Removes dependency on external pull-up; simplifies PCB layout and improves noise immunity in high-impedance nodes |
| 190ms POR timeout | Guarantees microcontroller core and peripherals are fully powered before release; prevents race conditions in FPGA configuration |
| Immunity to supply transients | Hysteresis and internal filtering suppress false resets caused by switching noise or load-step disturbances |
Applications
| Battery-Powered Wearables | Industrial Sensor Nodes |
|---|---|
Use Scenario: A wrist-worn health monitor uses a coin-cell battery and ARM Cortex-M0+ MCU that requires clean reset during cold-start and low-battery brownout. IC Role / Device Role / Timing Role: ISL88001IH22Z-T7A monitors the 2.2V LDO output and asserts active-high RST to hold the MCU in reset until VDD stabilizes above 2.19V for 190ms. Use Value: 160nA quiescent current preserves battery capacity over multi-month deployments; ±1.2% threshold accuracy prevents premature shutdown at 2.17V. | Use Scenario: A wireless temperature sensor node in a factory environment experiences wide ambient temperature swings and intermittent 2.2V rail droop due to RF transmission bursts. IC Role / Device Role / Timing Role: ISL88001IH22Z-T7A continuously supervises the 2.2V supply and triggers reset if VDD falls below 2.19V, with hysteresis preventing chatter during transient dips. Use Value: Operation down to VDD = 1V ensures reset remains valid during deep brownout; –40°C to +85°C rating matches industrial environmental requirements. |
| Medical Diagnostic Handhelds | Smart Energy Meters |
Use Scenario: A portable ECG reader powers up from sleep mode using a 2.2V buck converter and must guarantee deterministic boot sequence across battery aging. IC Role / Device Role / Timing Role: ISL88001IH22Z-T7A provides POR and continuous supervision of the 2.2V rail, asserting RST until VDD exceeds 2.19V for ≥190ms after power application. Use Value: Fixed threshold eliminates calibration drift over time; push-pull output ensures fast, low-impedance reset release critical for real-time signal acquisition startup. | Use Scenario: An electricity meter with isolated MCU and metrology ASIC requires reliable reset coordination between domains powered from a shared 2.2V rail. IC Role / Device Role / Timing Role: ISL88001IH22Z-T7A monitors the 2.2V supply and drives a common RST line to both MCU and ASIC, synchronizing their initialization. Use Value: 190ms timeout aligns with power-up timing of isolated DC/DC converters; ±1.2% accuracy ensures consistent behavior across production units and temperature. |
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 | 2.0V reset threshold, 1.2µA supply current, SOT-23-3, open-drain RST | Requires external pull-up resistor; higher current draw reduces battery life in ultra-low-power use cases | Select only if 2.0V threshold matches system rail and higher IDD is acceptable |
| TPS3808G12DBVR | 1.2V reset threshold, 1.1µA supply current, adjustable via external resistor, SOT-23-6 | 6-pin package increases board area; adjustable threshold adds design complexity and BOM cost | Choose only when programmable threshold is required and 6-pin footprint is available |
Compared with MAX809SEUR+T and TPS3808G12DBVR, the ISL88001IH22Z-T7A delivers superior energy efficiency (160nA vs. µA-range), exact 2.19V matching for 2.2V rails, and simplified push-pull interface-making it optimal for compact, long-life battery systems where precision and minimal component count are critical.
Availability
ISL88001IH22Z-T7A is available at Aetrix Electronics and suitable for battery-powered wearables, industrial sensor nodes, medical handhelds, and smart energy meters requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability.
Supply support for ISL88001IH22Z-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, infrastructure, and IoT markets.
The ISL88001IH22Z-T7A belongs to Renesas' Ultra Low Power Voltage Supervisor family, engineered specifically for space-constrained, battery-operated devices demanding nanowatt-level supervision with high threshold accuracy and industrial temperature resilience.
FAQ
What is the reset threshold voltage of the ISL88001IH22Z-T7A?
The ISL88001IH22Z-T7A has a nominal reset threshold voltage of 2.19V with ±1.2% accuracy over the industrial temperature range (–40°C to +85°C). This value is factory-programmed and fixed, enabling precise supervision of 2.2V supply rails without external components or calibration.
Does the ISL88001IH22Z-T7A require an external pull-up resistor on the RST pin?
No, the ISL88001IH22Z-T7A features an active-high push-pull RST output, which actively drives HIGH to VDD and LOW to GND. Unlike open-drain supervisors, it does not require an external pull-up resistor-reducing BOM count, PCB area, and potential noise coupling on the reset line.
What is the minimum supply voltage at which the ISL88001IH22Z-T7A can assert a valid reset signal?
The ISL88001IH22Z-T7A guarantees valid reset assertion down to VDD = 1V. This allows the device to maintain supervision integrity during deep brownout conditions or ultra-low-power wake-up sequences where the supply may dip below normal operating range but remain above 1V.
How does the power-on reset timeout of the ISL88001IH22Z-T7A compare to similar supervisors?
The ISL88001IH22Z-T7A provides a typical POR timeout of 190ms, which is tightly controlled and optimized for modern microcontrollers and FPGAs. This value falls within the 140–260ms range specified in the datasheet and ensures sufficient delay for power rail stabilization without unnecessarily delaying system boot.
Is the ISL88001IH22Z-T7A compatible with lead-free reflow processes?
Yes, the ISL88001IH22Z-T7A is Pb-free (RoHS compliant) and features 100% matte tin (e3) termination finish. It meets IPC/JEDEC J-STD-020 reflow requirements for lead-free soldering, with MSL classification appropriate for standard SOT-23 handling and assembly.
ISL88001IH22Z-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:
- 2.19V
- 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
ISL88001IH22Z-T7A FAQ
1.How can I place an order for ISL88001IH22Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IH22Z-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 ISL88001IH22Z-T7A reliable?
The price and inventory of ISL88001IH22Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IH22Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88001IH22Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IH22Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IH22Z-T7A?
ISL88001IH22Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IH22Z-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 ISL88001IH22Z-T7A?
For technical support, including ISL88001IH22Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IH22Z-T7A requirements.
6.How does Aetrix verify that ISL88001IH22Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88001IH22Z-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 ISL88001IH22Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88001IH22Z-T7A?
All ISL88001IH22Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IH22Z-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 ISL88001IH22Z-T7A part is unused and in its original packaging.
Return procedure for ISL88001IH22Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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