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Renesas ISL88002IE46Z-TK
- Part No.:
- ISL88002IE46Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88002IE46Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,570
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Product details
Overview
ISL88002IE46Z-TK from Renesas Electronics is an ultra-low-power (160nA) open-drain voltage supervisor IC with 4.62V fixed reset threshold, 190ms power-on reset timeout, ±1.2% threshold accuracy, and operation down to VDD = 1V. It monitors single-supply rails in microcontroller systems, portable equipment, and battery-powered instrumentation.
For engineers reviewing the ISL88002IE46Z-TK datasheet, ISL88002IE46Z-TK pinout, ISL88002IE46Z-TK application, or ISL88002IE46Z-TK equivalent, key selection criteria include open-drain RST output compatibility with external pull-up networks, SC-70-3 package footprint constraints, and guaranteed reset assertion at VDD ≥ 1V for brownout immunity in low-voltage embedded designs.
Technical Context
The ISL88002IE46Z-TK implements a precision bandgap-based voltage reference comparator with internal hysteresis to prevent noise-induced reset chatter during supply transients. Its POR circuit asserts reset at VDD = 1V and holds it until VDD exceeds 4.62V for ≥190ms.
As an open-drain RST device, it requires an external pull-up resistor (5kΩ–100kΩ) to interface with µP/µC reset inputs. The 3-pin SC-70 package enables high-density placement while maintaining thermal resistance of 640°C/W in free air.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.62V nominal, ±1.2% accuracy over -40°C to +85°C - ensures reliable detection of 5V rail undervoltage without false triggers. |
| Supply Current | 160nA typical at VDD = 1.8V - enables multi-year battery life in always-on monitoring applications. |
| POR Timeout | 190ms typical - guarantees sufficient stabilization time for microcontrollers and FPGAs before release from reset. |
| Minimum Operating VDD | 1V - supports reset assertion during deep brownout conditions where other supervisors fail. |
| Output Type | Open-drain RST - allows wired-OR configuration and flexible logic-level translation via external pull-up. |
| Package | 3-lead SC-70 (P3.049), 1.8mm × 2.2mm footprint - reduces PCB area by >30% vs. SOT-23 alternatives. |
| Temperature Range | -40°C to +85°C industrial grade - validated for automotive infotainment, industrial controllers, and outdoor IoT nodes. |
Pinout & Package
ISL88002IE46Z-TK is housed in a Pb-free 3-lead SC-70 plastic package (JEDEC MO-203AA, Renesas drawing P3.049), measuring 1.80mm × 2.20mm × 0.95mm with 0.65mm lead pitch. The package is RoHS-compliant and MSL-1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset logic - must be connected directly to system ground plane for noise immunity. |
| 2 | RST | Active-low open-drain reset output - sinks current when asserted; requires external pull-up (5kΩ–100kΩ) to VDD or another logic rail. |
| 3 | VDD | Power supply input and monitored voltage node - supplies IC bias and serves as the sensed rail; no external components required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 160nA max at 1.8V - extends battery life in coin-cell-powered sensors and wearables beyond 10 years. |
| High threshold accuracy | ±1.2% over temperature - eliminates need for calibration in precision power sequencing applications. |
| Low-VDD reset validity | Functional reset assertion down to VDD = 1V - provides fail-safe behavior during severe brownouts where µP may stall. |
| No external components | Self-contained supervision - removes BOM cost and layout risk associated with RC timing networks or external references. |
| Transient immunity | Immune to fast supply glitches - prevents spurious resets caused by switching noise or ESD events on VDD. |
Applications
| Microprocessor Power Sequencing | Portable Medical Sensors |
|---|---|
|
Use Scenario: Ensuring clean boot of ARM Cortex-M4 MCU after Li-ion battery voltage recovers from discharge sag. IC Role / Device Role / Timing Role: Voltage supervisor providing active-low reset signal with 190ms timeout to hold MCU in reset until 4.62V rail stabilizes. Use Value: Prevents corrupted firmware execution during marginal VDD recovery, eliminating field failures in handheld diagnostic tools. |
Use Scenario: Monitoring 3.3V LDO output powering ECG front-end ASIC in disposable patch sensor. IC Role / Device Role / Timing Role: Single-rail supervisor asserting open-drain RST to ASIC's reset pin via 10kΩ pull-up to same 3.3V rail. Use Value: Guarantees ASIC remains held in reset until power settles, avoiding analog front-end latch-up during cold start. |
| Industrial PLC I/O Modules | Smart Meter Communication Subsystems |
|
Use Scenario: Supervising isolated 5V DC-DC converter output feeding RS-485 transceiver and microcontroller in DIN-rail mount controller. IC Role / Device Role / Timing Role: Open-drain RST output tied to shared reset bus with 4.7kΩ pull-up, enabling coordinated reset across multiple ICs. Use Value: Eliminates need for discrete transistor OR-ing; simplifies board layout and improves reset timing correlation across subsystems. |
Use Scenario: Validating 3.3V supply to NB-IoT modem during wake-from-sleep transitions in AMI smart meters. IC Role / Device Role / Timing Role: Low-current supervisor (160nA) continuously monitoring rail while modem sleeps, asserting reset if VDD dips below 4.62V. Use Value: Maintains system reliability over 15+ year meter lifetime without depleting backup capacitor charge. |
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 | 4.63V threshold, ±2.5% accuracy, 1.2µA supply current, SOT-23-3 package | Higher quiescent current limits battery life in always-on devices; larger SOT-23 footprint increases PCB area | Select when legacy MAX809 footprint compatibility is required and 1.2µA IDD is acceptable. |
| TPS3808G33DBVR | 3.3V threshold, adjustable delay, 1.1µA supply current, SC-70-6 package | Fixed 3.3V trip point mismatches 4.62V requirement; 6-pin package incompatible with 3-pin layout | Use only if redesign permits new footprint and threshold re-binning; not drop-in compatible. |
Compared with MAX809SEUR+T and TPS3808G33DBVR, the ISL88002IE46Z-TK delivers 7.5× lower supply current and exact 4.62V trip matching common 5V rail tolerances, making it optimal for space-constrained, long-life battery applications where precision and ultra-low power are non-negotiable.
Availability
ISL88002IE46Z-TK is available at Aetrix Electronics and suitable for microprocessor systems, portable medical sensors, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL88002IE46Z-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 high-performance analog, mixed-signal, and embedded processing solutions for automotive, industrial, and IoT markets.
The ISL88002IE46Z-TK belongs to Renesas' Ultra Low Power Voltage Supervisor family, engineered specifically for battery-critical and space-constrained applications demanding sub-200nA operation and factory-trimmed threshold accuracy.
FAQ
What is the reset output configuration of the ISL88002IE46Z-TK?
The ISL88002IE46Z-TK features an active-low open-drain RST output. When reset is asserted, the RST pin is pulled to GND (LOW); otherwise, it remains high-impedance and requires an external pull-up resistor (5kΩ–100kΩ) to VDD or another logic rail. This configuration enables wired-OR reset buses and flexible voltage-level translation in the ISL88002IE46Z-TK design.
Does the ISL88002IE46Z-TK require external components to operate?
No, the ISL88002IE46Z-TK operates autonomously with only three connections: VDD (monitored supply), GND, and RST (open-drain output). An external pull-up resistor is required for the RST signal but is not part of the core supervision function - the ISL88002IE46Z-TK itself needs no capacitors, resistors, or trimming components to deliver accurate 4.62V monitoring and 190ms POR.
What is the minimum VDD voltage at which the ISL88002IE46Z-TK can assert reset?
The ISL88002IE46Z-TK guarantees valid reset assertion down to VDD = 1V. Its POR circuit activates at this level, ensuring the RST output remains LOW even during deep brownout conditions where other supervisors lose functionality. This capability is intrinsic to the ISL88002IE46Z-TK and verified across the full -40°C to +85°C temperature range.
Is the ISL88002IE46Z-TK pin-compatible with MAX809-series supervisors?
The ISL88002IE46Z-TK shares identical pinout (GND-RST-VDD) and SC-70-3 footprint with MAX809 variants, but differs in output type: ISL88002IE46Z-TK uses open-drain RST, whereas MAX809 uses push-pull. Direct replacement requires verifying external pull-up presence and logic-level compatibility - the ISL88002IE46Z-TK is not a drop-in substitute without circuit review.
What package and RoHS status does the ISL88002IE46Z-TK have?
The ISL88002IE46Z-TK is supplied in a Pb-free 3-lead SC-70 package (Renesas drawing P3.049), compliant with RoHS Directive 2011/65/EU. It uses NiPdAu (e4) termination finish and is MSL-1 rated, supporting both SnPb and lead-free reflow profiles per IPC/JEDEC J-STD-020 - fully documented for the ISL88002IE46Z-TK in FN6174 Rev 3.00.
ISL88002IE46Z-TK 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:
- 4.625V
- Output:
- Open Drain or Open Collector
- 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
ISL88002IE46Z-TK FAQ
1.How can I place an order for ISL88002IE46Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IE46Z-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 ISL88002IE46Z-TK reliable?
The price and inventory of ISL88002IE46Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IE46Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88002IE46Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IE46Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IE46Z-TK?
ISL88002IE46Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IE46Z-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 ISL88002IE46Z-TK?
For technical support, including ISL88002IE46Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IE46Z-TK requirements.
6.How does Aetrix verify that ISL88002IE46Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88002IE46Z-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 ISL88002IE46Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88002IE46Z-TK?
All ISL88002IE46Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IE46Z-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 ISL88002IE46Z-TK part is unused and in its original packaging.
Return procedure for ISL88002IE46Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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