My Inquiry
My Account
Renesas ISL88013IH522Z-TK
- Part No.:
- ISL88013IH522Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL88013IH522Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,047
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL88013IH522Z-TK from Renesas (formerly Intersil) is a 5-lead SOT-23 voltage supervisor IC with fixed 2.19V VDD monitoring, watchdog timer (1.6s normal / 51s startup timeout), complementary active-low and active-high reset outputs, and manual reset input - designed for reliable power-up sequencing and brownout protection in microcontroller-based embedded systems.
For engineers reviewing the ISL88013IH522Z-TK datasheet, ISL88013IH522Z-TK pinout, ISL88013IH522Z-TK application, or ISL88013IH522Z-TK equivalent, key selection criteria include its ±1.5% threshold accuracy over –40°C to +85°C, ultra-low 5.5µA supply current, reset validity down to VDD = 1V, immunity to power-supply transients, and dual reset output polarity support.
Technical Context
The ISL88013IH522Z-TK integrates a precision bandgap reference, comparator with hysteresis (22mV at 2.19V trip point), internal oscillator for watchdog timing, and push-pull/open-drain reset drivers - all operating from a single 2.0V–5.5V supply. It asserts reset on power-up (tPOR = 200ms nominal), VDD undervoltage (<2.19V), or watchdog timeout, and supports debounced manual reset via RST/MR pin.
Unlike ISL88012/ISL88014/ISL88015, this variant lacks VMON input and CPOR adjustability; instead, it features WDI (Watchdog Input) pin and fixed VDD supervision only. Its functional block includes independent POR circuitry, watchdog state machine with startup delay extension, and dual-output reset logic synchronized to internal timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Threshold | 2.19V ±1.5% - factory-programmed trip point for main supply monitoring; ensures reset assertion before microcontroller brownout. |
| Supply Current | 5.5µA typical at VDD = 3.3V - enables battery-backed or low-power always-on supervision without significant system drain. |
| Reset Validity | Down to VDD = 1V - guarantees functional reset signaling even during deep brownout or partial power collapse. |
| Watchdog Timeout | 1.6s normal / 51s startup - prevents premature reset during boot while enforcing runtime firmware liveness checks. |
| Reset Output Types | Complementary RST (push-pull high) and RST/MR (open-drain low) - supports direct interface to both active-high and active-low reset domains. |
| Hysteresis | 22mV at 2.19V - suppresses chatter during slow-rising/falling VDD transitions near threshold. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded control and instrumentation environments. |
Pinout & Package
ISL88013IH522Z-TK uses a Pb-free 5-lead SOT-23 package (JEDEC MO-178AA, Intersil PKG DWG #P5.064), measuring 2.9mm × 1.6mm × 1.1mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST/MR | Combined open-drain reset output & manual reset input | Asserts active-low reset when pulled low ≥1µs; also sinks reset signal during fault conditions - eliminates need for external pull-down on MR. |
| 2 - GND | Ground reference | Common return path for internal comparators, oscillator, and output drivers; must be low-impedance for noise immunity. |
| 3 - RST | Active-high push-pull reset output | Drives high to VDD during normal operation; pulls low during reset - directly interfaces with µC reset pins requiring active-high assertion. |
| 4 - VDD | Power supply and monitored voltage input | Supplies internal circuitry and serves as primary monitored rail; reset asserted if voltage drops below 2.19V ±1.5%. |
| 5 - WDI | Watchdog timer input | Edge-sensitive input (rising/falling); toggling within 1.6s clears watchdog; no toggle → reset after timeout - enforces firmware health monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 2.19V VDD supervision | Factory-trimmed threshold eliminates external resistor network; ±1.5% accuracy over full temperature range ensures predictable reset behavior. |
| Dual reset output polarity | RST (push-pull high) and RST/MR (open-drain low) enable simultaneous connection to mixed-signaling systems without level-shifting or inverters. |
| 51s watchdog startup timeout | Prevents false resets during OS boot, FPGA configuration, or bootloader execution - eliminates need for early WDI strobing. |
| Ultra-low quiescent current | 5.5µA max at 3.3V allows integration into energy-critical applications like portable medical devices or remote sensors without compromising battery life. |
| Reset valid down to 1V VDD | Ensures fail-safe reset assertion even under severe brownout or capacitor discharge - critical for data integrity in nonvolatile memory systems. |
Applications
| Industrial PLC I/O Module | Medical Infusion Pump Controller |
|---|---|
|
Use Scenario: Monitors 3.3V microcontroller supply and detects firmware hang during motor control sequences. IC Role / Device Role / Timing Role: Voltage supervisor and watchdog timer - asserts reset on VDD drop <2.19V or WDI inactivity >1.6s. Use Value: Prevents uncontrolled motor actuation by forcing controlled restart before unsafe current levels are reached. |
Use Scenario: Ensures safe shutdown if main 5V rail collapses or MCU fails to service watchdog during dose delivery. IC Role / Device Role / Timing Role: Dual-role supervisor - provides POR reset at power-up and continuous watchdog supervision during runtime. Use Value: Meets IEC 62304 Class C software safety requirements by guaranteeing deterministic reset response to hardware faults. |
| Smart Energy Meter MCU Subsystem | Automotive Body Control Module (BCM) |
|
Use Scenario: Supervises isolated 3.3V domain powering metrology SoC and communication interface. IC Role / Device Role / Timing Role: Fixed-threshold supervisor with manual reset capability - supports field-service recovery via button press. Use Value: Enables certified tamper-resistance through guaranteed reset assertion during power glitch attacks or supply manipulation. |
Use Scenario: Monitors 5V supply feeding CAN transceiver and microcontroller in low-voltage automotive environment. IC Role / Device Role / Timing Role: Industrial-temp voltage supervisor with 51s startup timeout - accommodates slow-battery-rise ignition sequences. Use Value: Eliminates spurious resets during cold cranking (battery dip to ~6V) while ensuring robust post-startup supervision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL88011IH522Z-TK | No watchdog timer; identical 2.19V VDD threshold and dual reset outputs. | Lacks runtime firmware supervision - suitable only where POR and undervoltage protection suffice. | Select when watchdog functionality is unnecessary and lowest BOM cost is prioritized. |
| MAX6326UR23+T | 2.32V fixed threshold, no WDI pin, 3.5µA supply current, same SOT-23-5 package. | Higher trip point; no watchdog - requires external timer or software polling for liveness detection. | Choose for tighter VDD margin above 2.32V or where ultra-low current (<4µA) outweighs watchdog need. |
Compared with ISL88011IH522Z-TK and MAX6326UR23+T, the ISL88013IH522Z-TK uniquely delivers integrated watchdog supervision without sacrificing threshold accuracy or supply current efficiency - making it optimal for safety-critical embedded systems requiring both power integrity and firmware health assurance.
Availability
ISL88013IH522Z-TK is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion pumps, smart energy meters, and automotive body control modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL88013IH522Z-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 acquired Intersil in 2017 and continues to manufacture and support its precision analog and power management portfolio, including supervisory ICs.
The ISL88013IH522Z-TK belongs to Renesas' legacy Intersil voltage supervisor family, engineered specifically for industrial and medical embedded systems requiring high-accuracy, low-power, and dual-reset-output supervision with integrated watchdog capability.
FAQ
What is the exact reset threshold voltage of the ISL88013IH522Z-TK?
The ISL88013IH522Z-TK has a factory-programmed VDD reset threshold of 2.19V with ±1.5% accuracy over the full –40°C to +85°C temperature range. This value is confirmed in the Ordering Information table (page 3) and Electrical Specifications (page 6) of FN8093 Rev 5.00, where VTHVDD = 2.16V (min), 2.19V (typ), 2.22V (max) for part marking AHS.
Does the ISL88013IH522Z-TK support adjustable power-on reset timeout?
No, the ISL88013IH522Z-TK does not support adjustable POR timeout. Unlike ISL88011/ISL88014 which feature a CPOR pin, the ISL88013 uses a fixed 200ms nominal tPOR (140–260ms min/max). This is explicitly stated in the Product Features Table (page 5) and Electrical Specifications (page 7), where tPOR is specified only for ISL88012/ISL88013/ISL88015 with no CPOR dependency.
Can the ISL88013IH522Z-TK monitor a secondary voltage like VMON?
No, the ISL88013IH522Z-TK does not have a VMON pin or adjustable secondary voltage monitoring capability. Its pinout (page 2) shows WDI at pin 5, not VMON. The Product Features Table (page 5) confirms VMON support only for ISL88012, ISL88014, and ISL88015 - the ISL88013 is designated for single-supply supervision with watchdog input.
What is the function of the RST/MR pin on the ISL88013IH522Z-TK?
The RST/MR pin on the ISL88013IH522Z-TK serves as both an active-low open-drain reset output and a debounced manual reset input. When asserted, it pulls low to GND; when used as input, it triggers reset upon being held ≤100mV for ≥1µs. This dual function eliminates the need for separate MR and RST pins, saving board space in compact designs.
Is the ISL88013IH522Z-TK RoHS compliant and Pb-free?
Yes, the ISL88013IH522Z-TK is RoHS compliant and Pb-free. The datasheet (page 3, Notes 1 & 4) states it uses "100% matte tin plate plus anneal (e3 termination finish)" and conforms to IPC/JEDEC J-STD-020 reflow standards for lead-free assembly. The "Z" suffix in the part number denotes Pb-free packaging per Intersil/Renesas nomenclature.
ISL88013IH522Z-TK 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:
- 2.19V
- Output:
- Open Drain, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SOT
ISL88013IH522Z-TK FAQ
1.How can I place an order for ISL88013IH522Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88013IH522Z-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 ISL88013IH522Z-TK reliable?
The price and inventory of ISL88013IH522Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88013IH522Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88013IH522Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88013IH522Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88013IH522Z-TK?
ISL88013IH522Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88013IH522Z-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 ISL88013IH522Z-TK?
For technical support, including ISL88013IH522Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88013IH522Z-TK requirements.
6.How does Aetrix verify that ISL88013IH522Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88013IH522Z-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 ISL88013IH522Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88013IH522Z-TK?
All ISL88013IH522Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88013IH522Z-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 ISL88013IH522Z-TK part is unused and in its original packaging.
Return procedure for ISL88013IH522Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88013IH522Z-TK 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…
