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Renesas ISL88003IE29Z-T7A
- Part No.:
- ISL88003IE29Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ISL88003IE29Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,478
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Product details
Overview
ISL88003IE29Z-T7A from Renesas is an ultra-low-power 3-pin voltage supervisor IC with push-pull active-high reset output, 2.92V fixed threshold (±1.2% accuracy), 160nA supply current, and 190ms power-on reset timeout - used to ensure reliable microprocessor startup and brownout protection in battery-powered systems.
For engineers reviewing the ISL88003IE29Z-T7A datasheet, ISL88003IE29Z-T7A pinout, ISL88003IE29Z-T7A application, or ISL88003IE29Z-T7A equivalent, key selection criteria include reset polarity, VDD trip point tolerance, minimum operating voltage (1V), package footprint (SC-70), and compatibility with low-power portable designs requiring stable supervision without external components.
Technical Context
The ISL88003IE29Z-T7A integrates a precision bandgap reference, comparator with hysteresis, and POR circuitry to assert a clean active-high reset signal when VDD falls below 2.92V or during initial power-up. It operates down to 1V supply and maintains ±1.2% threshold accuracy across -40°C to +85°C.
Its push-pull RST output drives high to VDD (not open-drain), eliminating need for external pull-up resistors, and features 15µs propagation delay from threshold crossing to reset assertion. The device requires no external timing or biasing components and is immune to typical power-supply transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.92V ±1.2% - ensures precise detection of 3.0V rail brownout with minimal false triggering |
| Supply Current | 160nA at 1.8V - enables multi-year operation on coin-cell batteries in always-on monitoring |
| POR Timeout | 190ms typical - guarantees sufficient hold-off time for microcontroller oscillator stabilization |
| Min Operating Voltage | 1V - allows reset assertion even during deep brownout conditions before system collapse |
| Output Type | Push-pull active-high - directly interfaces with µP reset inputs without external pull-up resistor |
| Package | 3-lead SC-70 (P3.049) - 1.25mm × 0.80mm footprint saves PCB area vs. SOT-23 |
| Temp Range | -40°C to +85°C - qualified for industrial and portable equipment environments |
Pinout & Package
ISL88003IE29Z-T7A uses a 3-lead SC-70 package (JEDEC MO-203AA, Renesas pkg drawing P3.049), measuring 1.25mm × 0.80mm × 0.55mm, with gull-wing leads and NiPdAu (e4) RoHS-compliant termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and reset logic; must be connected to system ground plane |
| 2 | RST | Active-high push-pull reset output - driven to VDD when asserted, high-impedance when inactive |
| 3 | VDD | Power supply input and monitored voltage source - supplies IC and provides input to threshold comparator |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.92V threshold | Enables direct supervision of 3.0V rails without trimming or external resistors |
| 160nA quiescent current | Reduces standby power by >90% vs. legacy supervisors, critical for energy harvesting and IoT sensors |
| 190ms POR timeout | Guarantees µP reset hold time exceeds typical crystal oscillator start-up delays |
| 1V minimum VDD operation | Ensures reset remains valid through severe brownout events where other supervisors fail |
| No external components | Eliminates BOM cost, layout area, and reliability risk associated with RC networks or pull-ups |
Applications
| Microprocessor Power-Up Control | Battery-Powered Sensor Node Supervision |
|---|---|
Use Scenario: Ensuring safe boot sequence for ARM Cortex-M0+ MCU powered from a 3.0V LDO. IC Role / Device Role / Timing Role: Monitors 3.0V rail and asserts active-high reset until voltage stabilizes above 2.92V for ≥190ms. Use Value: Prevents code execution during unstable power, avoiding flash corruption and undefined register states. | Use Scenario: Long-life environmental sensor node using CR2032 coin cell and ultra-low-power BLE SoC. IC Role / Device Role / Timing Role: Provides brownout detection and POR with 160nA draw to extend battery life beyond 5 years. Use Value: Maintains reset assertion down to 1V VDD, enabling graceful shutdown before system lockup. |
| Portable Medical Device Safety Monitoring | Industrial Controller Power Sequencing |
Use Scenario: Supervising 2.9V supply to analog front-end and ADC in handheld glucose meter. IC Role / Device Role / Timing Role: Detects 2.92V threshold violation and triggers active-high reset to halt measurement cycle. Use Value: ±1.2% accuracy ensures consistent trip point across temperature, meeting IEC 60601 safety margins. | Use Scenario: Coordinating power-up of FPGA and companion ASIC in programmable logic controller. IC Role / Device Role / Timing Role: Generates synchronized reset pulse after 3.3V rail reaches 2.92V and holds for 190ms. Use Value: Push-pull output eliminates need for external pull-up, simplifying layout in dense control module PCBs. |
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 | 2.93V threshold (±1.5%), 1.2µA supply current, SOT-23-3, open-drain active-low output | Requires external pull-up; higher current draw reduces battery life in always-on use | Select if legacy MAX809 footprint compatibility is required and active-low reset is acceptable |
| TPS3801K33DBVR | 3.3V threshold (±0.5%), 1.8µA supply current, SOT-23-3, push-pull active-low output | Higher threshold and current; not suitable for 3.0V rail monitoring or ultra-low-power designs | Choose only for 3.3V systems where tighter threshold tolerance outweighs current penalty |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88003IE29Z-T7A delivers 10× lower quiescent current and exact 2.92V trip matching common 3.0V rails - making it optimal for space-constrained, battery-critical applications where reset polarity and precision matter.
Availability
ISL88003IE29Z-T7A is available at Aetrix Electronics and suitable for microprocessor power-up control, battery-powered sensor nodes, portable medical devices, and industrial controller power sequencing requiring stable component supply and long-term obsolescence management.
Supply support for ISL88003IE29Z-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 microcontrollers, analog, power, and connectivity solutions for automotive, industrial, infrastructure, and IoT markets.
The ISL88003IE29Z-T7A belongs to Renesas' Ultra Low Power Voltage Supervisor family, designed specifically for energy-sensitive applications requiring guaranteed reset behavior under brownout, fast POR, and minimal board footprint.
FAQ
What is the reset output configuration of the ISL88003IE29Z-T7A?
The ISL88003IE29Z-T7A features a push-pull active-high reset output. When asserted, the RST pin is driven to VDD; when inactive, it enters high-impedance state. This eliminates the need for an external pull-up resistor and ensures clean, fast transitions compatible with modern µP reset inputs requiring active-high signaling.
What is the exact voltage threshold and accuracy of the ISL88003IE29Z-T7A?
The ISL88003IE29Z-T7A has a nominal reset threshold of 2.92V with ±1.2% accuracy over -40°C to +85°C. At +25°C, the specified range is 2.890V to 2.960V. This tight tolerance ensures reliable supervision of 3.0V power rails without margin-related false resets or missed brownouts.
Does the ISL88003IE29Z-T7A require external components to operate?
No, the ISL88003IE29Z-T7A requires no external components. Its internal POR circuit, precision voltage reference, and push-pull output enable fully autonomous operation. Unlike open-drain alternatives, it does not need a pull-up resistor on the RST pin, reducing BOM count and PCB area.
What is the minimum supply voltage at which the ISL88003IE29Z-T7A remains functional?
The ISL88003IE29Z-T7A guarantees valid reset assertion down to VDD = 1.0V. This capability ensures continued supervision during deep brownout events where other supervisors cease operation, allowing controlled system shutdown before data corruption or latch-up occurs.
Which package type and footprint does the ISL88003IE29Z-T7A use?
The ISL88003IE29Z-T7A uses the 3-lead SC-70 package (Renesas drawing P3.049), with dimensions 1.25mm × 0.80mm × 0.55mm. It is RoHS-compliant with NiPdAu (e4) termination and qualifies for both SnPb and Pb-free reflow processes per IPC/JEDEC J-STD-020.
ISL88003IE29Z-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.925V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
ISL88003IE29Z-T7A FAQ
1.How can I place an order for ISL88003IE29Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88003IE29Z-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 ISL88003IE29Z-T7A reliable?
The price and inventory of ISL88003IE29Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88003IE29Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88003IE29Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88003IE29Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88003IE29Z-T7A?
ISL88003IE29Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88003IE29Z-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 ISL88003IE29Z-T7A?
For technical support, including ISL88003IE29Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88003IE29Z-T7A requirements.
6.How does Aetrix verify that ISL88003IE29Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88003IE29Z-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 ISL88003IE29Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88003IE29Z-T7A?
All ISL88003IE29Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88003IE29Z-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 ISL88003IE29Z-T7A part is unused and in its original packaging.
Return procedure for ISL88003IE29Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88003IE29Z-T7A Tags
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