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Renesas ISL88001IH17Z-TK
- Part No.:
- ISL88001IH17Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88001IH17Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,385
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Product details
Overview
ISL88001IH17Z-TK from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with push-pull active-low reset output, 1.67V fixed threshold, ±1.2% accuracy, 190ms power-on reset timeout, and operation down to VDD = 1V. It monitors single supply rails in microcontroller systems and portable battery-powered equipment.
For engineers reviewing the ISL88001IH17Z-TK datasheet, ISL88001IH17Z-TK pinout, ISL88001IH17Z-TK application, or ISL88001IH17Z-TK equivalent, key selection criteria include reset polarity and output type (push-pull), low-voltage supervision capability (1.67V trip), ultra-low 160nA supply current, and compatibility with space-constrained SOT-23 layouts.
Technical Context
The ISL88001IH17Z-TK 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 for a guaranteed 140–260ms timeout after VDD exceeds the 1.67V threshold.
This device operates as a single-supply monitor with no external components required. The push-pull RST output drives actively high or low without pull-up resistors, simplifying interface design with microcontrollers requiring active-low reset inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V ±1.2% - precisely monitors 1.8V supply rails during brownout conditions |
| Supply Current | 160nA typical at 1.8V - enables multi-year battery life in always-on monitoring applications |
| POR Timeout | 190ms nominal - ensures stable power-up of microcontrollers and FPGAs before release |
| Reset Valid Down To | VDD = 1V - guarantees reliable reset assertion even during deep undervoltage events |
| Output Type | Push-pull active-low - eliminates need for external pull-up resistor; sinks 10mA max |
| Operating Temp | -40°C to +85°C - supports industrial-grade embedded and portable equipment environments |
| Package | 3-lead SOT-23 - footprint-compatible with legacy supervisory circuits; 2.92mm × 1.30mm body |
Pinout & Package
ISL88001IH17Z-TK is housed in a Pb-free, RoHS-compliant 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), with 0.95mm lead pitch and 1.00mm body height. Thermal resistance θJA = 590°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | IC substrate and comparator reference node; must be connected to system ground plane |
| 2 (RST) | Active-low reset output | Push-pull driver asserted LOW when VDD < 1.67V or during POR; drives µP reset input directly |
| 3 (VDD) | Supply and monitored input | Single-pin dual function: powers IC and provides voltage to be supervised; no separate sense pin |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.67V threshold | Accurately supervises 1.8V logic supplies with ±1.2% tolerance over temperature |
| 160nA supply current | Reduces quiescent power by >5× vs. legacy supervisors, critical for coin-cell applications |
| 190ms POR timeout | Guarantees sufficient delay for oscillator stabilization and register initialization in µCs |
| Reset valid to 1V | Enables fail-safe shutdown before system logic becomes unreliable below 1.2V |
| No external components | Eliminates BOM cost and PCB area for pull-ups, capacitors, or trimming resistors |
Applications
| Microprocessor Power-Up Control | Portable Medical Sensor Node |
|---|---|
Use Scenario: Ensuring clean boot sequence for ARM Cortex-M0+ MCU powered from Li-ion battery with LDO. IC Role / Device Role / Timing Role: Voltage supervisor providing active-low reset signal synchronized to 1.8V core rail stability. Use Value: Prevents firmware execution during brownout; 190ms POR timeout matches MCU's minimum reset hold requirement. |
Use Scenario: Battery-operated glucose meter with sleep mode consuming <1µA average current. IC Role / Device Role / Timing Role: Low-power supervisor monitoring 1.8V sensor interface rail and asserting reset on undervoltage. Use Value: 160nA IDD extends 3V CR2032 battery life beyond 5 years in standby; 1.67V threshold aligns with end-of-life battery voltage. |
| Industrial PLC I/O Module | Wearable Fitness Tracker |
Use Scenario: Supervising 3.3V isolated power rail feeding digital isolators and ADCs in harsh factory environment. IC Role / Device Role / Timing Role: Single-supply monitor detecting slow-ramp undervoltage events caused by aging DC/DC converters. Use Value: Immunity to power transients prevents false resets; -40°C to +85°C rating ensures reliability across operating range. |
Use Scenario: Compact wristband with BLE SoC and optical heart-rate sensor powered by 1.5V alkaline cell. IC Role / Device Role / Timing Role: Reset generator tied to 1.8V boost converter output, triggering controlled shutdown at 1.67V. Use Value: Push-pull RST eliminates pull-up resistor, saving PCB area and leakage path; SOT-23 fits tight 8mm × 8mm module footprint. |
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 | 1.63V threshold, ±2.5% accuracy, 140ms POR, SOT-23-3 | Higher threshold drift over temperature; less accurate for tight 1.8V margin | Select if legacy MAX809 footprint compatibility is mandatory and ±2.5% tolerance acceptable |
| TPS3808G16DBVR | 1.6V threshold, ±0.5% accuracy, adjustable POR delay (1ms–10s), SOT-23-6 | Requires external capacitor for timing; larger 6-pin package increases layout complexity | Select when higher accuracy or programmable timeout is needed, accepting extra pin count and BOM item |
Compared with MAX809SUR+T and TPS3808G16DBVR, the ISL88001IH17Z-TK delivers superior threshold accuracy (±1.2% vs. ±2.5% or ±0.5%) in a minimal 3-pin SOT-23, enabling direct drop-in replacement where 1.67V trip and ultra-low IDD are prioritized over programmability or legacy pinout.
Availability
ISL88001IH17Z-TK is available at Aetrix Electronics and suitable for microcontroller power-up control, portable medical sensor nodes, industrial PLC I/O modules, wearable fitness trackers, and battery-backed memory retention requiring stable component supply across long production lifecycles.
Supply support for ISL88001IH17Z-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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL88001 series belongs to Renesas' ultra-low-power analog supervisors product line, designed specifically for energy-constrained systems requiring precise, single-rail voltage monitoring with minimal board space and zero external components.
FAQ
What is the reset output configuration of the ISL88001IH17Z-TK?
The ISL88001IH17Z-TK features a push-pull active-low reset output. Pin 2 (RST) drives LOW when VDD falls below 1.67V or during power-on reset, and actively drives HIGH when the supply is stable. This eliminates the need for an external pull-up resistor and ensures fast, clean reset signaling to microcontrollers.
Does the ISL88001IH17Z-TK require external components to operate?
No, the ISL88001IH17Z-TK requires no external components. Its internal voltage reference, comparator, POR timer, and push-pull output are fully integrated. Only VDD (pin 3), GND (pin 1), and the RST load (e.g., µP reset pin) are needed-making it ideal for space- and BOM-constrained designs.
What is the minimum supply voltage at which ISL88001IH17Z-TK asserts reset?
The ISL88001IH17Z-TK asserts reset down to VDD = 1V. Its POR circuit activates at this level, and the reset remains asserted until VDD rises above the 1.67V threshold and sustains it for the full 190ms timeout period-ensuring robust behavior even during severe brownouts.
How does the ISL88001IH17Z-TK compare to the ISL88002 and ISL88003 variants?
The ISL88001IH17Z-TK differs from ISL88002IH17Z-TK (open-drain RST) and ISL88003IH17Z-TK (push-pull active-high RST). All share identical 1.67V threshold, 160nA IDD, and SOT-23 package-but ISL88001IH17Z-TK is the only variant with push-pull active-low output, matching common µP reset input requirements without external biasing.
Is the ISL88001IH17Z-TK RoHS compliant and lead-free?
Yes, the ISL88001IH17Z-TK is RoHS compliant and Pb-free. It uses 100% matte tin (e3) termination finish and meets IPC/JEDEC J-STD-020 reflow standards for lead-free soldering. The device is MSL-1 rated and compatible with both SnPb and Pb-free assembly processes.
ISL88001IH17Z-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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.67V
- 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
ISL88001IH17Z-TK FAQ
1.How can I place an order for ISL88001IH17Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IH17Z-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 ISL88001IH17Z-TK reliable?
The price and inventory of ISL88001IH17Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IH17Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88001IH17Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IH17Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IH17Z-TK?
ISL88001IH17Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IH17Z-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 ISL88001IH17Z-TK?
For technical support, including ISL88001IH17Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IH17Z-TK requirements.
6.How does Aetrix verify that ISL88001IH17Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88001IH17Z-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 ISL88001IH17Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88001IH17Z-TK?
All ISL88001IH17Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IH17Z-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 ISL88001IH17Z-TK part is unused and in its original packaging.
Return procedure for ISL88001IH17Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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