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Renesas ISL88002IE46Z-T7A
- Part No.:
- ISL88002IE46Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88002IE46Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,002
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Product details
Overview
ISL88002IE46Z-T7A from Renesas Electronics is an ultra-low-power 3-lead voltage supervisor IC with open-drain active-low reset output, 4.62V fixed threshold, ±1.2% accuracy, and 190ms power-on reset timeout. It monitors VDD supply voltage in battery-powered microcontroller systems and portable electronics where supply stability must be verified before system initialization.
For engineers reviewing the ISL88002IE46Z-T7A datasheet, ISL88002IE46Z-T7A pinout, ISL88002IE46Z-T7A application, or ISL88002IE46Z-T7A equivalent, key selection criteria include its 160nA supply current, reset validity down to 1V VDD, SC-70 package footprint, and compatibility with 3.3V/5V rail supervision in space-constrained embedded designs.
Technical Context
The ISL88002IE46Z-T7A 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 ≥140ms until VDD exceeds 4.62V and remains stable.
As an open-drain RST device, it requires an external pull-up resistor (5kΩ–100kΩ) and interfaces directly with µP reset inputs configured for active-low assertion. It operates across -40°C to +85°C with no external components needed beyond the pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.62V nominal, ±1.2% accuracy ensures reliable detection of 5V rail brownouts without false triggers. |
| Supply Current | 160nA typical at 1.8V–5.5V VDD enables multi-year operation on coin-cell batteries. |
| POR Timeout | 190ms minimum delay guarantees microcontroller core and peripherals stabilize before release. |
| Reset Validity | Functional down to VDD = 1V allows supervision during deep brownout or cold-start conditions. |
| Output Type | Open-drain active-low RST supports wired-OR logic and flexible voltage-level translation. |
| Operating Temp | -40°C to +85°C industrial range suits automotive infotainment, industrial sensors, and handheld devices. |
| Package | 3-lead SC-70 (P3.049), 1.8mm × 2.2mm footprint saves PCB area vs. SOT-23. |
Pinout & Package
ISL88002IE46Z-T7A is housed in a Pb-free 3-lead SC-70 package (JEDEC MO-203AA, drawing P3.049), measuring 1.8mm × 2.2mm × 0.95mm with gull-wing leads. The package is RoHS-compliant and MSL1 rated for lead-free reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset driver; must connect to system ground plane. |
| 2 | RST | Open-drain active-low reset output; requires external pull-up to host VDD or logic rail. |
| 3 | VDD | Power supply input and monitored voltage source; supplies IC and provides input to threshold comparator. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 160nA enables >10-year battery life in always-on monitoring applications. |
| High threshold accuracy | ±1.2% over temperature eliminates need for calibration in production test. |
| No external components | Self-contained supervision requires only one pull-up resistor-no capacitors or resistors for timing. |
| Immunity to transients | Internal hysteresis and fast response (<15µs) reject short-duration supply glitches. |
| Pb-free SC-70 packaging | RoHS-compliant 1.8mm × 2.2mm footprint reduces board area by 35% vs. SOT-23. |
Applications
| Microcontroller Power-Up Sequencing | Portable Medical Sensor Node |
|---|---|
Use Scenario: Ensures ARM Cortex-M0+ MCU boots only after 5V analog front-end and ADC rails reach stable 4.62V. IC Role / Device Role / Timing Role: Voltage supervisor providing active-low reset signal synchronized to VDD ramp with 190ms hold time. Use Value: Prevents firmware execution errors caused by premature clock enable or register access during rail ramp-up. | Use Scenario: Monitors coin-cell-supplied 3.3V LDO output powering ECG analog signal chain and BLE SoC. IC Role / Device Role / Timing Role: Low-current supervisor asserting reset when battery drops below 4.62V threshold under load. Use Value: Extends usable battery life by enabling graceful shutdown before data corruption occurs. |
| Industrial PLC I/O Module | Smart Home Hub Power Management |
Use Scenario: Supervises isolated 24V-to-5V DC/DC converter output feeding FPGA configuration memory and control logic. IC Role / Device Role / Timing Role: Open-drain RST output pulled up to 5V logic rail, compatible with FPGA reset pin requirements. Use Value: Guarantees FPGA config integrity by holding reset until 5V rail settles within ±1.2% tolerance. | Use Scenario: Validates 5V USB-C PD input before enabling Wi-Fi SoC and touch controller power domains. IC Role / Device Role / Timing Role: Single-supply supervisor with 1V reset validity tolerates USB transient dips without spurious resets. Use Value: Eliminates user-perceivable boot failures during plug/unplug events in consumer-grade hubs. |
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 current draw limits use in ultra-low-power battery systems; larger footprint increases PCB area. | Select when legacy MAX809 compatibility is required and 1.2µA current is acceptable. |
| TPS3808G33DBVR | 3.3V threshold, adjustable via external resistor, 1.5µA supply current, SC-70-5 package | Fixed 3.3V trip point mismatches 4.62V requirement; 5-pin package adds routing complexity. | Choose only if threshold adjustability outweighs need for exact 4.62V match and minimal pin count. |
Compared with MAX809SEUR+T and TPS3808G33DBVR, the ISL88002IE46Z-T7A delivers 7.5× lower supply current and exact 4.62V trip accuracy in the smallest SC-70 footprint-making it optimal for space- and energy-constrained 5V rail supervision.
Availability
ISL88002IE46Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical sensors, industrial I/O modules, and smart home hub power management requiring stable component supply and long-term lifecycle support.
Supply support for ISL88002IE46Z-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 high-performance analog, mixed-signal, and embedded processing solutions for automotive, industrial, and IoT markets.
The ISL88002IE46Z-T7A belongs to Renesas' ultra-low-power voltage supervisor family, designed specifically for battery-operated and space-constrained embedded systems requiring precise, low-current supply monitoring.
FAQ
What is the reset threshold voltage of the ISL88002IE46Z-T7A?
The ISL88002IE46Z-T7A has a nominal reset threshold voltage of 4.62V with ±1.2% accuracy over the -40°C to +85°C temperature range. This value is factory-programmed and applies specifically to the ISL88002IE46Z-T7A variant, as confirmed in the FN6174 datasheet ordering table and electrical specifications section.
Does the ISL88002IE46Z-T7A require an external pull-up resistor?
Yes, the ISL88002IE46Z-T7A features an open-drain RST output and requires an external pull-up resistor between the RST pin and the host logic rail (e.g., 3.3V or 5V). Recommended values range from 5kΩ to 100kΩ, per the datasheet's Pin Descriptions section and Figure 1 typical application diagram.
What is the power-on reset timeout duration for the ISL88002IE46Z-T7A?
The ISL88002IE46Z-T7A provides a guaranteed power-on reset timeout of 190ms, with a specified range of 140ms to 260ms across temperature and voltage. This delay ensures stable power rail establishment before releasing the reset signal to connected microcontrollers or FPGAs.
Can the ISL88002IE46Z-T7A operate with supply voltages below 1.8V?
No-the ISL88002IE46Z-T7A is not rated for operation below 1.8V. Its absolute minimum VDD is 1.8V per the "Recommended Operating Conditions" table (Page 8), though its reset signal remains valid down to VDD = 1V for brownout detection during falling-edge supervision.
Is the ISL88002IE46Z-T7A pin-compatible with MAX809-series supervisors?
Yes-the ISL88002IE46Z-T7A is explicitly stated as pin-compatible with MAX803, MAX809, and MAX810 in the datasheet Features section (Page 1). Both share identical 3-lead SC-70/SOT-23 pinouts (GND-RST-VDD), enabling drop-in replacement where open-drain RST functionality is acceptable.
ISL88002IE46Z-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:
- 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-T7A FAQ
1.How can I place an order for ISL88002IE46Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88002IE46Z-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 ISL88002IE46Z-T7A reliable?
The price and inventory of ISL88002IE46Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88002IE46Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88002IE46Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88002IE46Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88002IE46Z-T7A?
ISL88002IE46Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88002IE46Z-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 ISL88002IE46Z-T7A?
For technical support, including ISL88002IE46Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88002IE46Z-T7A requirements.
6.How does Aetrix verify that ISL88002IE46Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88002IE46Z-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 ISL88002IE46Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88002IE46Z-T7A?
All ISL88002IE46Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88002IE46Z-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 ISL88002IE46Z-T7A part is unused and in its original packaging.
Return procedure for ISL88002IE46Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88002IE46Z-T7A Tags
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