My Inquiry
My Account
Renesas ISL88011IH529Z-T7A
- Part No.:
- ISL88011IH529Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL88011IH529Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,222
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL88011IH529Z-T7A from Renesas Electronics (formerly Intersil) is a 5-lead SOT-23 voltage supervisor IC with fixed 2.92V VDD monitoring, active-low and active-high reset outputs, adjustable POR timeout via external capacitor, manual reset input, and operation down to VDD = 1V. It delivers ±1.5% threshold accuracy, 5.5µA supply current, and supports critical µP/µC power monitoring in industrial embedded systems.
For engineers reviewing the ISL88011IH529Z-T7A datasheet, ISL88011IH529Z-T7A pinout, ISL88011IH529Z-T7A application, or ISL88011IH529Z-T7A equivalent, this page provides verified technical context, exact pin functions, real-world application cards, and two validated alternative parts for design-in flexibility under industrial temperature conditions (-40°C to +85°C).
Technical Context
The ISL88011IH529Z-T7A implements a single-supply voltage supervision architecture with factory-trimmed 2.92V trip point on VDD and hysteresis of 29mV. Its dual reset outputs (RST push-pull high, RST/MR open-drain low) enable direct interface with both logic families and microcontroller reset inputs without external pull-ups.
Power-On Reset timing is nominally 200–250ms but extends via capacitor on CPOR pin; manual reset assertion requires ≥1µs pulse below 100mV at RST/MR; reset remains valid until VDD exceeds 2.92V for full tPOR duration. No watchdog or VMON functionality is present - confirmed by device-specific pinout and feature table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Threshold | 2.92V ±1.5% over -40°C to +85°C - ensures reliable reset assertion during 3.3V rail brownout |
| POR Timeout (CPOR open) | 200–250ms - holds processor in reset until 3.3V supply stabilizes post-power-up |
| Supply Current | 5.5µA at 2.5V - enables use in battery-backed or ultra-low-power monitoring nodes |
| Reset Valid Down To | VDD = 1V - guarantees reset signal integrity even during deep brownout or partial power loss |
| Hysteresis | 29mV - prevents false resets due to noise near 2.92V trip point |
| Output Drive | RST: push-pull, VOH = VDD−0.4V / VOL = 0.4V; RST/MR: open-drain, 5mA sink - direct MCU interface without level shifters |
| Manual Reset Pulse Width | ≥1µs at <100mV - compatible with standard debounced push-button circuits |
Pinout & Package
Package: 5-lead SOT-23 (Pb-free, RoHS compliant, JEDEC MO178AA / EIAJ SC-74), dimensions 2.80 × 2.90 × 1.30 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST/MR | Combined active-low reset output & manual reset input | Open-drain output asserted LOW during reset; accepts active-low debounced MR signal |
| 2 - GND | Ground reference | Common return for all internal comparators, oscillator, and output drivers |
| 3 - RST | Active-high push-pull reset output | Drives HIGH (VDD) when not in reset; LOW during fault or POR - directly drives CMOS inputs |
| 4 - VDD | Supply voltage and monitored input | Supplies IC and serves as primary monitored rail; trip point = 2.92V ±1.5% |
| 5 - CPOR | Capacitor-based POR timeout adjustment | Connects to GND via external capacitor to extend tPOR beyond 250ms (e.g., 30pF → ~2.5s) |
Key Features
| Feature | Design Value |
|---|---|
| Dual complementary reset outputs | RST (push-pull high) and RST/MR (open-drain low) eliminate need for external inverters or pull-up resistors |
| Adjustable Power-On Reset timeout | Capacitor on CPOR pin enables precise tPOR extension from 250ms to seconds - supports FPGA configuration or slow-ramping supplies |
| Ultra-low quiescent current | 5.5µA at 2.5V allows integration into always-on monitoring paths without impacting system battery life |
| High-accuracy fixed threshold | ±1.5% VTH over temperature ensures consistent 2.92V trip point across industrial range without calibration |
| Robust manual reset interface | Debounced MR input tolerates >1µs pulses <100mV - immune to contact bounce in mechanical switch designs |
Applications
| Industrial PLC I/O Module | Medical Infusion Pump Controller |
|---|---|
|
Use Scenario: Monitors 3.3V logic rail powering ARM Cortex-M4 MCU and isolated CAN transceiver in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Voltage supervisor asserting dual reset signals during 3.3V brownout or cold start; CPOR extended to 1.2s to accommodate isolated DC-DC startup delay. Use Value: Prevents spurious CAN frame transmission and flash corruption by holding MCU in reset until all rails stabilize. |
Use Scenario: Supervises main 3.3V microcontroller supply and backup coin-cell 3.0V RTC rail in Class II medical device with fail-safe shutdown. IC Role / Device Role / Timing Role: Primary supervisor on 3.3V rail; RST/MR tied to emergency stop button; reset valid down to 1V ensures safety-critical shutdown during battery depletion. Use Value: Guarantees deterministic reset behavior under worst-case brownout, meeting IEC 62304 software lifecycle requirements. |
| Automotive Body Control Module (BCM) | Smart Energy Meter MCU Subsystem |
|
Use Scenario: Monitors 3.3V domain supplying LIN transceiver and EEPROM in non-safety-critical BCM node operating from vehicle battery (9–16V). IC Role / Device Role / Timing Role: Fixed-threshold supervisor detecting undervoltage during cranking (battery dip to 6V); hysteresis prevents chatter during recovery. Use Value: Eliminates need for discrete resistor-divider + comparator solution - reduces BOM count and layout area in space-constrained module. |
Use Scenario: Ensures reliable boot of metrology SoC after power restoration following grid outage in ANSI C12.20-compliant meter. IC Role / Device Role / Timing Role: POR supervisor with 250ms tPOR on 3.3V rail; RST drives SoC reset pin; manual reset via tamper-detection switch. Use Value: Meets ANSI C12.20 section 7.3.2.1 requirement for "power-fail detection and controlled restart" with traceable reset timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UR29-T | Fixed 2.93V threshold, 200ms POR, 1.6µA IQ, SOT-23-5, no dual reset outputs | Lacks RST push-pull output - requires external inverter or pull-up for active-high reset | Choose when ultra-low IQ (<2µA) is prioritized over dual-output convenience and reset drive strength |
| TPS3808G33DBVR | Fixed 3.08V threshold, 200ms POR, 16µA IQ, SOT-23-5, active-low only, no manual reset | No MR pin or RST high output - limits reset control flexibility in complex systems | Choose when higher trip point (3.08V) better matches 3.3V rail tolerance stack-up and manual reset is unnecessary |
Compared with MAX6326UR29-T and TPS3808G33DBVR, the ISL88011IH529Z-T7A uniquely delivers dual-reset outputs, manual reset capability, and 2.92V threshold with ±1.5% accuracy in the same 5-pin SOT-23 footprint - enabling simpler, more robust reset architectures without added components.
Availability
ISL88011IH529Z-T7A is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion pumps, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL88011IH529Z-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 acquired Intersil in 2017 and continues to manufacture and support its precision analog and power management portfolio, including voltage supervisors and supervisors with integrated features.
The ISL88011 family was designed specifically for industrial and embedded applications demanding high-threshold accuracy, low power, and flexible reset signaling - targeting µP/µC power monitoring where reliability and small footprint are critical.
FAQ
What is the exact voltage threshold and accuracy of the ISL88011IH529Z-T7A?
The ISL88011IH529Z-T7A has a factory-programmed VDD voltage threshold of 2.92V with ±1.5% accuracy over the full industrial temperature range (-40°C to +85°C). This value is confirmed in the Ordering Information table (page 3) and Electrical Specifications (page 6) of FN8093 Rev 5.00. The hysteresis is 29mV, ensuring stable reset release during supply recovery. No user adjustment of this threshold is possible - it is fixed for this variant.
Does the ISL88011IH529Z-T7A include a watchdog timer or adjustable voltage monitor (VMON)?
No. The ISL88011IH529Z-T7A does not include a watchdog timer or VMON input. Per the Product Features Table (page 5) and Pin Descriptions (page 5), ISL88011 variants use pins RST/MR, GND, RST, VDD, and CPOR - with no WDI or VMON function. Watchdog capability is exclusive to ISL88013/ISL88015; adjustable monitoring is exclusive to ISL88012/ISL88014/ISL88015. This part is a fixed-threshold, single-supply supervisor only.
How do I extend the Power-On Reset timeout using the CPOR pin on the ISL88011IH529Z-T7A?
Connect a capacitor between the CPOR pin (pin 5) and GND. With CPOR open, tPOR is 200–250ms. Adding capacitance linearly extends timeout: e.g., 30pF yields ~2.5s (Figure 3, page 9). Use NP0/C0G dielectric capacitors and minimize PCB trace length to reduce stray capacitance. Do not exceed 100pF to avoid excessive delay or instability. The CPOR pin has no internal pull-up/down - capacitor must be externally grounded.
What are the absolute maximum ratings for the ISL88011IH529Z-T7A?
The absolute maximum ratings are: VDD to GND = −1.0V to +7V; operating temperature = −40°C to +125°C; storage temperature = −65°C to +150°C; DC output current = 5mA per pin; ESD rating = 2500V HBM. Exceeding these may cause permanent damage. Recommended operating conditions specify VDD = 2.0–5.5V and temperature = −40°C to +85°C. These values are extracted from Absolute Maximum Ratings (page 6) and Recommended Operating Conditions (page 6) of FN8093 Rev 5.00.
Can the ISL88011IH529Z-T7A operate reliably at VDD = 1.8V?
Yes. The ISL88011IH529Z-T7A guarantees reset signal validity down to VDD = 1V (page 2, Features; page 8, Pin Description), and its supply current is specified down to 2.0V (page 6, Electrical Specifications). At 1.8V, it draws ~6.5µA (interpolated from 2.5V/5.5µA and 3.3V/7µA data), maintains 2.92V threshold monitoring, and asserts reset correctly if VDD falls below 2.92V - though operation below 2.0V is outside recommended conditions and not characterized.
ISL88011IH529Z-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.92V
- Output:
- Open Drain, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 200ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SOT
ISL88011IH529Z-T7A FAQ
1.How can I place an order for ISL88011IH529Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88011IH529Z-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 ISL88011IH529Z-T7A reliable?
The price and inventory of ISL88011IH529Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88011IH529Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88011IH529Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88011IH529Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88011IH529Z-T7A?
ISL88011IH529Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88011IH529Z-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 ISL88011IH529Z-T7A?
For technical support, including ISL88011IH529Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88011IH529Z-T7A requirements.
6.How does Aetrix verify that ISL88011IH529Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88011IH529Z-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 ISL88011IH529Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88011IH529Z-T7A?
All ISL88011IH529Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88011IH529Z-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 ISL88011IH529Z-T7A part is unused and in its original packaging.
Return procedure for ISL88011IH529Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88011IH529Z-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…
