My Inquiry
My Account
Renesas ISL88003IH16Z-T7A
- Part No.:
- ISL88003IH16Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL88003IH16Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:130
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL88003IH16Z-T7A from Renesas Electronics is an ultra-low-power voltage supervisor IC with active-high push-pull reset output, 1.58V fixed threshold, ±1.2% accuracy, 190ms power-on reset timeout, and operation down to VDD = 1V. It monitors single supply rails in space-constrained portable and battery-powered systems.
For engineers reviewing the ISL88003IH16Z-T7A datasheet, ISL88003IH16Z-T7A pinout, ISL88003IH16Z-T7A application, or ISL88003IH16Z-T7A equivalent, this device delivers precise brownout detection for microcontroller power sequencing, low-voltage system initialization, and reliable reset assertion under transient supply conditions.
Technical Context
The ISL88003IH16Z-T7A integrates a precision bandgap reference, comparator with hysteresis, and POR circuitry to assert reset when VDD falls below 1.58V or during initial power-up. Its internal architecture ensures immunity to supply transients and stable operation across -40°C to +85°C.
It features a push-pull RST output that drives HIGH (to VDD) upon valid supply condition and LOW (to GND) during reset, eliminating external pull-up components. The device consumes only 160nA typical supply current at 1.8V, enabling multi-year battery life in always-on monitoring applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.58V ±1.2% - precisely monitors 1.6V-class supplies with minimal margin loss. |
| Supply Current | 160nA typical at 1.8V - enables decade-scale battery operation in IoT sensors. |
| POR Timeout | 190ms nominal - ensures sufficient stabilization time before releasing µP reset. |
| Reset Output Type | Active-high push-pull - eliminates need for external pull-up resistor; drives full VDD logic HIGH. |
| Valid Reset Range | VDD ≥ 1V - guarantees functional reset assertion even during deep brownout. |
| Operating Temp | -40°C to +85°C - qualified for industrial and automotive cabin environments. |
| Package | 3-lead SOT-23 - 2.92mm × 1.30mm footprint compatible with high-density PCB layouts. |
Pinout & Package
ISL88003IH16Z-T7A is housed in a Pb-free 3-lead SOT-23 package (JEDEC TO-236), with 0.95mm lead pitch and 1.00mm body height. The package supports standard reflow profiles per IPC/JEDEC J-STD-020 MSL1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | IC substrate and comparator reference node; must be connected to system ground plane. |
| 2 (RST) | Active-high push-pull reset output | Drives HIGH to VDD when supply is valid; LOW to GND during reset; no external pull-up required. |
| 3 (VDD) | Supply input & monitored rail | Power source and analog input for threshold comparison; also powers internal circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.58V threshold | Enables direct supervision of 1.6V FPGA I/O banks or low-voltage ASIC cores without external resistors. |
| ±1.2% threshold accuracy | Reduces design margin overhead vs. ±2–3% alternatives, improving system voltage headroom. |
| 160nA supply current | Lowers quiescent power in always-on monitoring nodes-critical for coin-cell-powered wearables. |
| 190ms POR timeout | Guarantees µC oscillator stabilization and register initialization before release of reset signal. |
| 1V minimum operating VDD | Ensures deterministic reset behavior during severe brownouts where other supervisors fail silently. |
Applications
| Microcontroller Power Sequencing | Portable Medical Sensors |
|---|---|
Use Scenario: Ensuring safe boot of ARM Cortex-M0+ MCU after Li-ion battery discharge to 2.8V. IC Role / Device Role / Timing Role: Voltage supervisor providing active-high reset to MCU's RESET pin during power ramp and brownout. Use Value: Prevents code execution at insufficient VDD, avoiding flash corruption and undefined peripheral states. |
Use Scenario: Continuous glucose monitor operating on CR2032 coin cell with aging-induced voltage sag. IC Role / Device Role / Timing Role: Low-current supervisor asserting reset when cell drops below 1.58V to halt measurement cycle. Use Value: Extends usable battery life by 12% vs. 2.0V threshold parts, while guaranteeing clean shutdown. |
| Industrial PLC I/O Modules | Smart Energy Meters |
Use Scenario: Monitoring 1.8V auxiliary rail powering isolated CAN transceiver in factory automation node. IC Role / Device Role / Timing Role: Single-supply supervisor with push-pull RST driving transceiver EN pin. Use Value: Eliminates external pull-up resistor and associated BOM cost; reduces layout area by 0.5mm². |
Use Scenario: Supervising 1.6V RTC backup supply during main AC failure in utility meter. IC Role / Device Role / Timing Role: Ultra-low-IDD supervisor maintaining reset assertion until backup capacitor recovers. Use Value: Enables >10-year RTC hold-up with 0.1F supercap; 160nA draw extends retention time by 3.2× vs. 500nA alternatives. |
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 | 1.60V threshold, ±2.5% accuracy, 1.2µA IDD, open-drain RST, SOT-23-3 | Higher quiescent current limits battery life; open-drain requires pull-up; less accurate threshold. | Select when legacy MAX809 compatibility is required and power budget allows >7× higher IDD. |
| TPS3801K33DBVR | 3.3V threshold (not 1.58V), ±0.5% accuracy, 1.8µA IDD, push-pull RST, SOT-23-3 | Fixed 3.3V trip incompatible with 1.6V rail; superior accuracy but unsuitable for this voltage point. | Use only if supervising 3.3V domain; not a functional substitute for 1.58V monitoring. |
Compared with MAX809SEUR+T and TPS3801K33DBVR, the ISL88003IH16Z-T7A uniquely combines 1.58V trip, ±1.2% accuracy, and 160nA current in a push-pull SOT-23 package-enabling compact, long-life supervision of sub-1.8V rails where alternatives either lack voltage match or increase power overhead.
Availability
ISL88003IH16Z-T7A is available at Aetrix Electronics and suitable for microcontroller power sequencing, portable medical sensors, industrial PLC I/O modules, and smart energy meters requiring stable component supply with guaranteed long-term availability.
Supply support for ISL88003IH16Z-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 SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The ISL88003IH16Z-T7A belongs to Renesas' ultra-low-power voltage supervisor family, designed specifically for reliable power-on reset and brownout protection in battery-critical and space-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of the ISL88003IH16Z-T7A?
The ISL88003IH16Z-T7A has a nominal reset threshold of 1.58V with ±1.2% accuracy over -40°C to +85°C. At +25°C, the specified range is 1.561V to 1.599V; full-temperature min/max is 1.537V to 1.623V. This fixed threshold is factory-trimmed and requires no external components.
Does the ISL88003IH16Z-T7A require an external pull-up resistor on the RST pin?
No. The ISL88003IH16Z-T7A features a push-pull RST output that actively drives HIGH to VDD when the supply is valid and LOW to GND during reset. Unlike open-drain supervisors, it eliminates the need for an external pull-up resistor, reducing BOM count and PCB area.
Can the ISL88003IH16Z-T7A operate when VDD drops below 1.6V?
Yes. The ISL88003IH16Z-T7A guarantees functional reset assertion down to VDD = 1V. Its internal circuitry remains operational and asserts RST correctly even during deep brownout events where VDD falls below the 1.58V threshold-ensuring deterministic system behavior.
What is the power-on reset timeout duration for the ISL88003IH16Z-T7A?
The ISL88003IH16Z-T7A provides a nominal power-on reset timeout of 190ms. Per datasheet Figure 5, typical tPOR is ~145ms, with min/max specification of 140ms to 260ms over temperature. This delay ensures µP oscillator stabilization and register initialization before reset release.
Is the ISL88003IH16Z-T7A pin-compatible with MAX809 series devices?
No. While the ISL88003IH16Z-T7A is functionally comparable to MAX809 variants, it is not pin-compatible. The ISL88003IH16Z-T7A uses Pin 1=GND, Pin 2=RST, Pin 3=VDD; MAX809 uses Pin 1=GND, Pin 2=VCC, Pin 3=RESET. Layout redesign is required for substitution.
ISL88003IH16Z-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.58V
- 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:
- SOT-23-3
ISL88003IH16Z-T7A FAQ
1.How can I place an order for ISL88003IH16Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88003IH16Z-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 ISL88003IH16Z-T7A reliable?
The price and inventory of ISL88003IH16Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88003IH16Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88003IH16Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88003IH16Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88003IH16Z-T7A?
ISL88003IH16Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88003IH16Z-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 ISL88003IH16Z-T7A?
For technical support, including ISL88003IH16Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88003IH16Z-T7A requirements.
6.How does Aetrix verify that ISL88003IH16Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88003IH16Z-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 ISL88003IH16Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88003IH16Z-T7A?
All ISL88003IH16Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88003IH16Z-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 ISL88003IH16Z-T7A part is unused and in its original packaging.
Return procedure for ISL88003IH16Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88003IH16Z-T7A Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
