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Renesas ISL88001IE31Z-T7A
- Part No.:
- ISL88001IE31Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88001IE31Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,088
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Product details
Overview
ISL88001IE31Z-T7A from Renesas is an ultra-low-power 3-pin voltage supervisor IC with a fixed 3.07V reset threshold, 160nA supply current, ±1.2% threshold accuracy, and 190ms power-on reset timeout. It monitors VDD in microcontroller systems and portable equipment, asserting a push-pull active-low reset signal when supply voltage drops below threshold or during power-up.
For engineers reviewing the ISL88001IE31Z-T7A datasheet, ISL88001IE31Z-T7A pinout, ISL88001IE31Z-T7A application, or ISL88001IE31Z-T7A equivalent, key selection criteria include trip point tolerance, reset output type (push-pull), minimum operating voltage (1V), thermal stability (0.48mV/°C), and SC-70 package compatibility for space-constrained designs.
Technical Context
The ISL88001IE31Z-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 RST low until VDD exceeds 3.07V for ≥190ms, ensuring stable microprocessor initialization.
This device operates across -40°C to +85°C with no external components required. The push-pull RST output drives directly into µP reset inputs without pull-up resistors, simplifying layout and reducing BOM count versus open-drain alternatives like ISL88002IE31Z-T7A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.07V ±1.2% - ensures reliable detection of 3.3V rail brownouts with minimal false triggers. |
| Supply Current | 160nA typical - enables multi-year battery life in always-on monitoring applications. |
| POR Timeout | 190ms - guarantees sufficient delay for FPGA configuration and oscillator stabilization before release. |
| Operating Voltage Range | 1.8V to 5.5V - supports direct connection to 1.8V–5V logic rails without level-shifting. |
| Reset Output Type | Push-pull active-low - eliminates need for external pull-up resistor, reducing component count and board area. |
| Min Valid Reset Voltage | VDD ≥ 1V - allows reset assertion even during deep brownout conditions where other supervisors fail. |
| Temp Coefficient | 0.48mV/°C - maintains tight threshold stability over industrial temperature range. |
Pinout & Package
ISL88001IE31Z-T7A is housed in a Pb-free 3-lead SC-70 package (JEDEC MO-203AA, pkg drawing P3.049), measuring 2.2mm × 1.35mm × 0.95mm. This ultra-compact footprint suits high-density portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | IC substrate and comparator reference node; must be connected to system ground plane for accurate threshold sensing. |
| 2 RST | Active-low reset output | Push-pull driver that sinks current when asserted (LOW) and sources current when released (HIGH); interfaces directly with µP reset input. |
| 3 VDD | Supply input & monitored voltage | Single pin serves dual role: powers the IC and provides the voltage being supervised; no separate sense input required. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 3.07V threshold | Matches nominal 3.3V supply rails with margin for ripple and droop, eliminating need for external resistor dividers. |
| 160nA quiescent current | Reduces standby power consumption by >90% versus legacy supervisors, critical for coin-cell-powered devices. |
| 190ms POR timeout | Guarantees microcontroller remains held in reset long enough for clock stabilization and register initialization. |
| 1V minimum operating voltage | Enables reset assertion during severe brownouts where VDD falls below 1.8V, improving system robustness. |
| SC-70 package | Provides 40% smaller footprint than SOT-23, enabling placement near µP reset pins without routing congestion. |
Applications
| Microcontroller Power-Up Sequencing | Battery-Powered IoT Sensor Node |
|---|---|
Use Scenario: Ensuring clean boot of ARM Cortex-M0+ MCU after Li-ion battery wake-up from deep sleep. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout detection on 3.3V LDO output. Use Value: 160nA current draw extends 200mAh coin cell life beyond 5 years; 190ms POR prevents spurious execution before clock lock. | Use Scenario: Monitoring regulated 3.3V rail in BLE-enabled environmental sensor worn on body. IC Role / Device Role / Timing Role: Single-pin VDD monitor with push-pull RST driving nRESET of Nordic nRF52832 SoC. Use Value: SC-70 package fits within 3mm × 3mm wearable PCB area budget; ±1.2% threshold ensures reliable detection of 10% rail sag. |
| Industrial PLC I/O Module | Medical Handheld Diagnostic Device |
Use Scenario: Supervising 3.3V FPGA configuration voltage in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Reset generator holding FPGA in reset until 3.3V rail stabilizes post-power-up. Use Value: 1V minimum operating voltage allows reset assertion even during transient dips caused by relay switching noise. | Use Scenario: Securing safe startup of ADAS-like vision processor in portable ultrasound probe. IC Role / Device Role / Timing Role: Brownout detector on 3.3V analog front-end supply to prevent corrupted ADC sampling. Use Value: 0.48mV/°C tempco maintains <±20mV drift across -20°C to +60°C operating range, meeting IEC 60601 immunity requirements. |
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 | 3.08V threshold, ±2.5% accuracy, 1.2µA supply current, SOT-23-3 package | Higher quiescent current limits use in multi-year battery applications; larger SOT-23 footprint increases board area | Select when legacy MAX809 compatibility is required and 1.2µA current is acceptable. |
| TPS3801K33DBVR | 3.3V threshold, ±0.5% accuracy, 1.8µA supply current, SOT-23-3 package | Higher threshold unsuitable for 3.3V rails with tight tolerance; higher current reduces battery life | Choose only if tighter 0.5% accuracy is mandatory and 3.3V nominal (not 3.07V) matches system design. |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88001IE31Z-T7A delivers 7.5× lower supply current and 2× better threshold accuracy in a 40% smaller SC-70 package-making it optimal for space- and energy-constrained designs where 3.07V trip point aligns with actual 3.3V rail behavior under load.
Availability
ISL88001IE31Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, battery-powered IoT nodes, and industrial PLC modules requiring stable component supply and long-term manufacturability.
Supply support for ISL88001IE31Z-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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The ISL88001 family targets ultra-low-power voltage supervision in portable and space-constrained systems, emphasizing nanoscale current consumption, high threshold accuracy, and minimal external component count.
FAQ
What is the exact reset threshold voltage of the ISL88001IE31Z-T7A?
The ISL88001IE31Z-T7A has a nominal reset threshold voltage of 3.07V, with guaranteed accuracy of ±1.2% over the -40°C to +85°C temperature range. At +25°C, the typical value is 3.075V, and the full min/max range is 3.000V to 3.150V per datasheet FN6174 Rev 3.00.
Does the ISL88001IE31Z-T7A require an external pull-up resistor on the RST pin?
No, the ISL88001IE31Z-T7A features a push-pull RST output, meaning it actively drives both HIGH and LOW states without needing an external pull-up resistor. This distinguishes it from open-drain variants like ISL88002IE31Z-T7A and reduces BOM count and PCB area.
What is the minimum supply voltage at which the ISL88001IE31Z-T7A can assert reset?
The ISL88001IE31Z-T7A can assert a valid reset signal down to VDD = 1V, as confirmed in the datasheet's "Reset Signal Valid Down to VDD = 1V" feature and Electrical Specifications table. This enables reliable brownout detection even during deep undervoltage events.
Is the ISL88001IE31Z-T7A pin-compatible with the MAX809 series?
Yes, the ISL88001IE31Z-T7A is pin-compatible with MAX803, MAX809, and MAX810 in the same SC-70 or SOT-23-3 package configurations. Pin 1 is GND, Pin 2 is RST, and Pin 3 is VDD - matching the industry-standard supervisor pinout.
What package type and dimensions does the ISL88001IE31Z-T7A use?
The ISL88001IE31Z-T7A uses a Pb-free 3-lead SC-70 package (JEDEC MO-203AA, Renesas pkg drawing P3.049), with dimensions of 2.2mm × 1.35mm × 0.95mm. It is supplied in tape-and-reel format with 250 units per reel (T7A designation).
ISL88001IE31Z-T7A 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:
- 3.075V
- 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
ISL88001IE31Z-T7A FAQ
1.How can I place an order for ISL88001IE31Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88001IE31Z-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 ISL88001IE31Z-T7A reliable?
The price and inventory of ISL88001IE31Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88001IE31Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88001IE31Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88001IE31Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88001IE31Z-T7A?
ISL88001IE31Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88001IE31Z-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 ISL88001IE31Z-T7A?
For technical support, including ISL88001IE31Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88001IE31Z-T7A requirements.
6.How does Aetrix verify that ISL88001IE31Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88001IE31Z-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 ISL88001IE31Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88001IE31Z-T7A?
All ISL88001IE31Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88001IE31Z-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 ISL88001IE31Z-T7A part is unused and in its original packaging.
Return procedure for ISL88001IE31Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88001IE31Z-T7A Tags
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