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Renesas ISL88001IE22Z-T
- Part No.:
- ISL88001IE22Z-T
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88001IE22Z-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,805
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Product details
Overview
ISL88001IE22Z-T from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with a fixed 2.19V reset threshold, 160nA supply current, ±1.2% threshold accuracy, and 190ms power-on reset timeout. It features a push-pull active-low RST output and operates from VDD = 1V to 2.75V, serving as a precision power-on reset and brownout detector in battery-powered microcontroller systems.
For engineers reviewing the ISL88001IE22Z-T datasheet, ISL88001IE22Z-T pinout, ISL88001IE22Z-T application, or ISL88001IE22Z-T equivalent, key selection criteria include its SC-70-3 package footprint, guaranteed reset assertion down to 1V supply, immunity to power-supply transients, and compatibility with 1.8V–2.5V logic domains requiring high-accuracy supervision without external components.
Technical Context
The ISL88001IE22Z-T integrates a precision bandgap reference, comparator with hysteresis, and POR circuitry to assert reset when VDD falls below 2.19V (±1.2%) or rises above 1V at power-up. Its internal architecture ensures monotonic reset behavior with no chattering during noisy supply transitions.
It delivers a push-pull active-low RST signal with VOL ≤ 0.4V at 0.5mA sink and VOH ≥ VDD − 0.2V when deasserted, enabling direct interface to 1.8V/2.5V µP reset inputs without pull-up resistors or level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.19V ±1.2% - enables precise supervision of 2.2V nominal rails with guaranteed trip over -40°C to +85°C. |
| Supply Current | 160nA typical at 1.8V - extends battery life in always-on portable devices without compromising supervision integrity. |
| POR Timeout | 190ms typical - ensures stable power rail establishment before releasing µP reset, meeting ARM Cortex-M and PIC timing requirements. |
| Minimum Operating VDD | 1.0V - allows reset assertion even during deep brownout conditions where core logic may still be functional. |
| Output Type | Push-pull active-low - eliminates need for external pull-up resistor, reducing BOM count and PCB area in space-constrained designs. |
| Package | 3-lead SC-70 (P3.049) - 1.25mm × 0.85mm footprint compatible with high-density portable PCB layouts. |
| Temperature Range | -40°C to +85°C - qualified for industrial and extended-temperature embedded applications. |
Pinout & Package
ISL88001IE22Z-T is housed in a Pb-free 3-lead SC-70 plastic package (JEDEC MO-203AA, Renesas drawing P3.049), measuring 1.25mm × 0.85mm × 0.5mm with gull-wing leads. The package supports reflow soldering per IPC/JEDEC J-STD-020 MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | IC ground reference terminal - must be connected directly to system ground plane for stable threshold reference and noise immunity. |
| 2 | RST | Active-low push-pull reset output - drives LOW (≤0.4V) when VDD < 2.19V or during POR; drives HIGH (≥VDD−0.2V) otherwise. |
| 3 | VDD | Power supply input and monitored voltage node - supplies IC bias and serves as the sensed rail; requires local 0.1µF decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.19V threshold | Enables accurate supervision of 2.2V LDO outputs without trimming or calibration, reducing design validation time. |
| 160nA supply current | Allows integration into energy-harvesting and coin-cell-powered systems where quiescent current dominates lifetime budget. |
| 190ms POR timeout | Meets JEDEC JESD78 requirement for microprocessor reset hold time, eliminating need for external RC timing networks. |
| Reset valid down to VDD = 1V | Ensures fail-safe reset assertion during severe brownouts where other supervisors lose functionality. |
| Immunity to power-supply transients | Prevents false resets caused by fast-rising noise spikes on VDD, critical in motor-control and switching-regulator environments. |
Applications
| Microcontroller Power-Up Sequencing | Battery-Powered IoT Sensor Node |
|---|---|
Use Scenario: Ensuring reliable boot of an ARM Cortex-M0+ MCU powered by a 2.2V LDO after cold start or battery insertion. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout detection with 190ms timeout and 2.19V threshold. Use Value: Guarantees µP remains held in reset until 2.2V rail stabilizes and internal registers are loaded, preventing corrupted firmware execution. | Use Scenario: Supervising a BLE SoC (e.g., nRF52832) operating from a single 3.0V Li-ion cell stepped down to 2.2V via buck converter. IC Role / Device Role / Timing Role: Low-quiescent-current supervisor monitoring the 2.2V domain to detect undervoltage before battery depletion causes data loss. Use Value: 160nA current draw extends shelf life and operational runtime; 1V minimum VDD operation ensures last-chance reset before shutdown. |
| Industrial Controller Watchdog Interface | Portable Medical Diagnostic Device |
Use Scenario: Providing primary reset signal to a PIC18F67J11-based PLC I/O module powered from a 2.5V isolated DC-DC converter. IC Role / Device Role / Timing Role: Precision voltage monitor asserting active-low reset on supply droop below 2.19V with ±1.2% accuracy. Use Value: Eliminates false trips from line transients while ensuring deterministic response to actual brownout events per IEC 61000-4-4 compliance. | Use Scenario: Enabling safe startup and fault shutdown in a handheld ECG analyzer using a 1.8V/2.5V dual-rail PMIC. IC Role / Device Role / Timing Role: Supervisor for the 2.2V analog front-end rail, interfacing directly to µP reset pin via push-pull output. Use Value: Push-pull RST removes need for pull-up resistor, saving board space and eliminating potential leakage path in low-power sleep modes. |
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 package, ±2.5% accuracy | Higher current draw limits use in ultra-low-power designs; looser accuracy affects margin-critical 2.2V rails | Select only if 2.0V threshold suffices and higher IDD is acceptable; verify layout compatibility with SOT-23 footprint. |
| TPS3808G12QDBVRQ1 | 1.2V threshold, 800nA current, adjustable via external resistor, automotive-grade (-40°C to +125°C) | Not pin-compatible; requires external resistor network; designed for AEC-Q100 automotive use, not industrial portable | Choose only for automotive qualification needs; redesign required due to different pinout and adjustment method. |
Compared with MAX809SEUR+T and TPS3808G12QDBVRQ1, the ISL88001IE22Z-T provides tighter 2.19V threshold alignment with 2.2V rails, 7.5× lower supply current than MAX809, and direct SC-70 drop-in capability-making it optimal for space- and energy-constrained industrial and portable designs where precision and minimal BOM are critical.
Availability
ISL88001IE22Z-T is available at Aetrix Electronics and suitable for microcontroller power sequencing, battery-powered IoT nodes, industrial controllers, and portable medical devices requiring stable component supply across long production lifecycles.
Supply support for ISL88001IE22Z-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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with expertise in analog, power, and timing products.
The ISL88001IE22Z-T belongs to Renesas' Ultra Low Power Voltage Supervisor family, engineered specifically for precision power monitoring in battery-operated and space-constrained electronic systems where minimal current draw and high threshold accuracy are mandatory.
FAQ
What is the exact reset threshold voltage of the ISL88001IE22Z-T?
The ISL88001IE22Z-T has a nominal reset threshold voltage of 2.19V, with guaranteed accuracy of ±1.2% over the full -40°C to +85°C temperature range. At +25°C, the threshold is specified as 2.164V (min) to 2.216V (max), and the device maintains this precision across its operating temperature range as confirmed in Figure 9 of the FN6174 datasheet.
Does the ISL88001IE22Z-T require an external pull-up resistor on the RST pin?
No, the ISL88001IE22Z-T does not require an external pull-up resistor because it features a push-pull active-low RST output. The output actively drives LOW (≤0.4V) when reset is asserted and HIGH (≥VDD − 0.2V) when deasserted, enabling direct connection to microcontroller reset inputs without additional components.
What is the minimum supply voltage at which the ISL88001IE22Z-T can assert reset?
The ISL88001IE22Z-T guarantees reset assertion down to VDD = 1.0V, as stated in the datasheet's "Features" section and validated in the Absolute Maximum Ratings table. This ensures fail-safe operation during deep brownout conditions where other supervisors may cease functioning.
Is the ISL88001IE22Z-T pin-compatible with the MAX809 series?
Yes, the ISL88001IE22Z-T is pin-compatible with MAX803/MAX809/MAX810 in the same SC-70-3 package, sharing identical pinout (GND, RST, VDD) and push-pull active-low output configuration. However, note that MAX809 variants have different thresholds (e.g., MAX809SEUR+T = 2.0V), so electrical compatibility depends on threshold match and accuracy requirements.
What package type and dimensions does the ISL88001IE22Z-T use?
The ISL88001IE22Z-T uses a Pb-free 3-lead SC-70 plastic package per JEDEC MO-203AA and Renesas drawing P3.049, with dimensions of 1.25mm × 0.85mm × 0.5mm. Lead pitch is 0.65mm, and the package is rated MSL Level 1 for moisture sensitivity, supporting standard reflow profiles per IPC/JEDEC J-STD-020.
ISL88001IE22Z-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- SC-70-3
ISL88001IE22Z-T FAQ
1.How can I place an order for ISL88001IE22Z-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IE22Z-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 ISL88001IE22Z-T reliable?
The price and inventory of ISL88001IE22Z-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IE22Z-T is usually 5 days.
3.What payment methods are accepted for ISL88001IE22Z-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IE22Z-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IE22Z-T?
ISL88001IE22Z-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IE22Z-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 ISL88001IE22Z-T?
For technical support, including ISL88001IE22Z-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IE22Z-T requirements.
6.How does Aetrix verify that ISL88001IE22Z-T is sourced from the original manufacturer or authorized distributors?
All ISL88001IE22Z-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 ISL88001IE22Z-T meets industry standards.
7.What is the process for return or replacement of ISL88001IE22Z-T?
All ISL88001IE22Z-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IE22Z-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 ISL88001IE22Z-T part is unused and in its original packaging.
Return procedure for ISL88001IE22Z-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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