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Renesas ISL88001IH17Z-T
- Part No.:
- ISL88001IH17Z-T
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88001IH17Z-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,750
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Product details
Overview
ISL88001IH17Z-T from Renesas Electronics is an ultra-low-power 3-pin voltage supervisor IC with push-pull active-high 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 battery-powered microcontroller systems and portable instrumentation.
For engineers reviewing the ISL88001IH17Z-T datasheet, ISL88001IH17Z-T pinout, ISL88001IH17Z-T application, or ISL88001IH17Z-T equivalent, key selection criteria include reset polarity (active-high), output drive type (push-pull), supply current (160nA), threshold tolerance, and SOT-23-3 package compatibility with space-constrained designs.
Technical Context
The ISL88001IH17Z-T implements a precision bandgap-based voltage reference and comparator circuit to detect falling VDD below its factory-trimmed 1.67V threshold. It integrates a 190ms POR timer that asserts RST upon initial power-up at VDD ≥ 1V and holds reset until VDD exceeds 1.67V for the full timeout period.
Its push-pull RST output drives high (to VDD) during reset assertion and low (to GND) otherwise, eliminating external pull-up components. The device features 1% hysteresis and operates across -40°C to +85°C with temperature coefficient of 0.48mV/°C on VTHVDD.
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 |
| POR Timeout | 190ms nominal - ensures stable power-up before releasing microcontroller reset |
| Reset Output Type | Push-pull active-high - directly interfaces with µP reset inputs without pull-up resistor |
| Operating Voltage Range | 1.8V to 2.75V - supports low-voltage logic domains while maintaining supervision down to 1V |
| Temperature Range | -40°C to +85°C - qualified for industrial and portable equipment environments |
| VDD Monitoring Input | Single-pin VDD - eliminates need for external resistive divider or auxiliary supply sensing |
Pinout & Package
ISL88001IH17Z-T is housed in a Pb-free 3-lead SOT-23 package (JEDEC TO-236, pkg drawing P3.064), measuring 2.92mm × 1.30mm × 1.00mm with 0.95mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal circuitry and reset output sink path |
| 2 | RST | Push-pull active-high reset output - drives HIGH when VDD < 1.67V, LOW otherwise |
| 3 | VDD | Power supply input and monitored voltage rail - no external components required |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.67V threshold | Enables precise supervision of 1.8V logic supplies without trimming or calibration |
| 160nA supply current | Reduces quiescent power draw by >90% versus legacy supervisors, critical for coin-cell applications |
| 190ms POR timeout | Guarantees sufficient delay for oscillator stabilization and register initialization in µP systems |
| Reset valid down to 1V | Ensures reliable reset assertion even during deep brownout or battery depletion |
| No external components | Eliminates BOM cost and board area for pull-ups, dividers, or timing capacitors |
Applications
| Microprocessor Power-Up Control | Portable Medical Instrumentation |
|---|---|
Use Scenario: Ensuring safe boot sequence for ARM Cortex-M0+ MCU powered from a 1.8V LDO. IC Role / Device Role / Timing Role: Voltage supervisor providing active-high reset signal synchronized to 1.67V threshold crossing and 190ms POR delay. Use Value: Prevents code execution under marginal supply, avoids flash corruption, and guarantees clean register state after cold start. | Use Scenario: Supervising power rails in handheld glucose meters using CR2032 coin cells. IC Role / Device Role / Timing Role: Low-current supervisor detecting end-of-life battery drop below 1.67V to trigger shutdown before data loss. Use Value: Extends usable battery life by 12–18 months versus higher-current alternatives while maintaining measurement integrity. |
| Industrial Sensor Node Reset | Low-Power IoT Edge Controller |
Use Scenario: Reset coordination for LoRaWAN sensor node with MSP430F5xx MCU and 1.8V supply. IC Role / Device Role / Timing Role: Single-supply monitor asserting active-high reset during brownout recovery and power cycling. Use Value: Eliminates need for external pull-up on reset line, reducing component count and PCB footprint in 8mm × 8mm modules. | Use Scenario: Supervising 1.8V core rail in BLE-enabled smart thermostat with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Ultra-low-power supervisor enabling 10-year battery life via 160nA quiescent current and 1V minimum operating voltage. Use Value: Maintains system reliability during transient dips caused by RF transmission bursts without false resets. |
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 | 1.63V threshold, ±2.5% accuracy, 140ms POR, SOT-23-3, open-drain active-low RST | Requires external pull-up; less accurate threshold; lower POR delay may risk premature release | Select when legacy MAX809 footprint compatibility is mandatory and active-low reset is acceptable |
| TPS3801K33DBVR | 3.08V threshold (not 1.67V); ±0.5% accuracy; 200ms POR; SOT-23-3; push-pull active-low RST | Higher threshold incompatible with 1.8V rails; active-low output requires redesign of reset net | Choose only if migrating to higher-voltage domain and redesigning reset interface is feasible |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88001IH17Z-T delivers tighter threshold accuracy, lower quiescent current, and native active-high push-pull drive-enabling direct drop-in use in 1.8V µP systems without layout changes or additional passives.
Availability
ISL88001IH17Z-T is available at Aetrix Electronics and suitable for microcontroller power-up control, portable medical instrumentation, industrial sensor nodes, and low-power IoT edge controllers requiring stable component supply and long-term lifecycle support.
Supply support for ISL88001IH17Z-T 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 connectivity solutions for automotive, industrial, infrastructure, and IoT markets.
The ISL88001 series belongs to Renesas' ultra-low-power voltage supervisor product line, designed specifically for battery-operated and energy-harvesting systems where nanoscale current consumption and precise reset thresholds are critical.
FAQ
What is the exact reset threshold voltage of the ISL88001IH17Z-T and how tightly is it specified?
The ISL88001IH17Z-T has a nominal reset threshold voltage of 1.67V, with guaranteed accuracy of ±1.2% over the full -40°C to +85°C temperature range. At +25°C, the typical value is 1.670V, with min/max limits of 1.650V and 1.690V respectively. This precision enables reliable supervision of 1.8V supply rails without margin-related false triggers or missed brownouts.
Does the ISL88001IH17Z-T require any external components to operate?
No, the ISL88001IH17Z-T requires zero external components. Its push-pull active-high RST output eliminates the need for a pull-up resistor, and its integrated voltage reference and comparator allow direct connection to the monitored VDD rail. No timing capacitors, resistive dividers, or bypass components are necessary - simplifying design and reducing BOM cost.
What is the power-on reset (POR) timeout duration for the ISL88001IH17Z-T, and how does it behave during brownout?
The ISL88001IH17Z-T provides a nominal 190ms power-on reset timeout. Upon initial power application, reset is asserted when VDD reaches 1V and remains asserted until VDD rises above 1.67V and sustains that level for the full 190ms period. During brownout, reset reasserts immediately when VDD falls below 1.67V and releases only after VDD recovers and remains above threshold for 190ms.
How does the ISL88001IH17Z-T differ from the ISL88002 and ISL88003 variants in the same family?
The ISL88001IH17Z-T features a push-pull active-high RST output. In contrast, the ISL88002IH17Z-T uses an open-drain active-low RST output (requiring external pull-up), and the ISL88003IH17Z-T also provides push-pull but with active-low reset polarity. All three share identical 1.67V threshold, 160nA current, and 190ms POR - only reset logic and output stage differ.
Is the ISL88001IH17Z-T compatible with standard SOT-23-3 footprints and reflow processes?
Yes, the ISL88001IH17Z-T uses a standard JEDEC TO-236 (SOT-23-3) package with drawing P3.064, fully compatible with industry-standard SOT-23 land patterns. It is Pb-free (RoHS compliant) with 100% matte tin (e3) termination and qualified for both SnPb and Pb-free reflow profiles per IPC/JEDEC J-STD-020, including peak temperatures up to 260°C.
ISL88001IH17Z-T 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-T FAQ
1.How can I place an order for ISL88001IH17Z-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IH17Z-T 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-T reliable?
The price and inventory of ISL88001IH17Z-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IH17Z-T is usually 5 days.
3.What payment methods are accepted for ISL88001IH17Z-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IH17Z-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IH17Z-T?
ISL88001IH17Z-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IH17Z-T 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-T?
For technical support, including ISL88001IH17Z-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IH17Z-T requirements.
6.How does Aetrix verify that ISL88001IH17Z-T is sourced from the original manufacturer or authorized distributors?
All ISL88001IH17Z-T 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-T meets industry standards.
7.What is the process for return or replacement of ISL88001IH17Z-T?
All ISL88001IH17Z-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IH17Z-T, 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-T part is unused and in its original packaging.
Return procedure for ISL88001IH17Z-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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