My Inquiry
My Account
Renesas ISL88012IH526Z-T7A
- Part No.:
- ISL88012IH526Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL88012IH526Z-T7A.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,489
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL88012IH526Z-T7A from Intersil is a dual-voltage supervisor IC in 5-lead SOT-23 packaging, providing fixed 2.63V VDD monitoring and user-adjustable VMON monitoring down to 0.6V, with complementary active-low (RST) and active-high (RST) reset outputs, 200ms power-on reset timeout, and manual reset input - used for reliable µP power sequencing in embedded control systems.
For engineers reviewing the ISL88012IH526Z-T7A datasheet, ISL88012IH526Z-T7A pinout, ISL88012IH526Z-T7A application, or ISL88012IH526Z-T7A equivalent, key selection considerations include its ±1.5% threshold accuracy over –40°C to +85°C, ultra-low 5.5µA supply current, dual-supply supervision capability, and compatibility with battery-powered and industrial equipment requiring stable brownout detection.
Technical Context
The ISL88012IH526Z-T7A integrates two independent voltage monitoring paths: one compares VDD against a factory-trimmed 2.63V threshold (±1.5%), while the other compares VMON against an internal 600mV reference, enabling custom monitoring of any supply ≥0.6V via external resistor divider. Reset assertion occurs when either input falls below its trip point and remains asserted for 200ms after recovery.
It features complementary push-pull RST and open-drain RST/MR outputs, manual reset debounced input (MR), and operates from 2.0V to 5.5V supply. Reset validity extends down to VDD = 1V, and immunity to power-supply transients ensures robust operation in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Threshold | 2.63V ±1.5% - factory-trimmed fixed trip point for primary supply monitoring |
| VMON Threshold | 0.6V nominal (adjustable ≥0.6V) - internal reference enables custom voltage supervision |
| POR Timeout | 200ms typical - ensures microprocessor stabilization before release from reset |
| Supply Current | 5.5µA at VDD = 3.3V - enables long battery life in portable applications |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded systems |
| Reset Outputs | Complementary RST (push-pull high) and RST/MR (open-drain low) - supports mixed logic interface requirements |
| Reset Validity | Down to VDD = 1V - maintains supervision during deep brownout conditions |
Pinout & Package
Package: 5-lead SOT-23 (Pb-free, RoHS-compliant, JEDEC MO178AA / EIAJ SC-74 compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST/MR | Combined active-low reset output & manual reset input | Open-drain output pulled low during reset; accepts debounced active-low MR pulse ≥1µs |
| 2 - GND | Ground reference | Common return path for all internal circuitry and external bias networks |
| 3 - RST | Active-high reset output | Push-pull output driven high during reset; sinks 0.5mA max with VOL ≤0.4V |
| 4 - VDD | Supply voltage and monitored input | Power source (2.0–5.5V) and primary monitored rail with 2.63V trip point |
| 5 - VMON | User-adjustable voltage monitor input | Compares external voltage (via resistor divider) against 600mV reference; supports monitoring ≥0.6V |
Key Features
| Feature | Design Value |
|---|---|
| Dual voltage supervision | Simultaneous fixed-VDD (2.63V) and adjustable-VMON (≥0.6V) monitoring in single 5-pin package |
| Complementary reset outputs | RST (active-high push-pull) and RST/MR (active-low open-drain) enable direct interfacing with diverse µP reset inputs |
| Manual reset support | Debounced MR input accepts push-button or controller-driven low pulse ≥1µs for system-initiated reset |
| High-accuracy thresholds | ±1.5% voltage threshold tolerance over full temperature range ensures consistent brownout detection |
| Ultra-low quiescent current | 5.5µA typical supply current minimizes impact on battery runtime in portable instrumentation |
Applications
| Industrial Embedded Control | Portable Medical Instrumentation |
|---|---|
Use Scenario: Monitoring 3.3V MCU core supply and 1.8V sensor rail in a handheld diagnostic device. IC Role / Device Role / Timing Role: Dual-supervisor ensures both rails stabilize before releasing µP reset; VMON monitors secondary rail via resistor divider. Use Value: Prevents erratic MCU behavior during battery voltage sag by asserting reset until both supplies exceed their thresholds for 200ms. |
Use Scenario: Power sequencing in a battery-powered glucose meter with 2.6V main supply and 1.2V analog front-end. IC Role / Device Role / Timing Role: VDD pin monitors main supply at 2.63V; VMON pin monitors 1.2V rail using 2-resistor divider calibrated to 1.2V trip. Use Value: Enables single-chip supervision of two critical rails with <1% threshold error, eliminating need for discrete comparators and saving PCB area. |
| Process Automation Sensor Node | Smart Energy Metering Module |
Use Scenario: Supervising 5V isolated communication supply and 3.3V microcontroller supply in a DIN-rail mounted I/O module. IC Role / Device Role / Timing Role: Fixed 2.63V threshold monitors 3.3V rail; VMON monitors 5V rail scaled to 0.6V reference via precision resistors. Use Value: Guarantees deterministic startup sequence and prevents firmware corruption during AC line dips via 200ms POR delay. |
Use Scenario: Brownout protection for metrology SoC and RTC backup supply in a Class 0.5 electricity meter. IC Role / Device Role / Timing Role: VDD monitors 3.3V main supply; VMON monitors 1.2V RTC rail; RST/MR connects to tamper-detection switch. Use Value: Maintains reset assertion down to VDD = 1V, ensuring safe shutdown during deep brownouts without data loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL88014IH5Z-T7A | No fixed VDD threshold; VMON adjustable only; no RST output (RST/MR only); 4.5µA supply current | Suitable where only one adjustable rail needs monitoring and active-high reset is not required | Select when dual-rail supervision is unnecessary and lowest possible current draw is prioritized |
| MAX6326XR26D3+T | Single 2.63V fixed threshold; no VMON; no RST output; 1.5µA supply current; 140ms POR | Designed for basic µP reset only - lacks dual-monitoring and complementary outputs | Choose for cost-sensitive, single-rail applications where ultra-low current and minimal feature set suffice |
Compared with ISL88012IH526Z-T7A, ISL88014IH5Z-T7A removes fixed VDD supervision and RST output but reduces current draw, while MAX6326XR26D3+T offers lower current and smaller footprint at the expense of dual monitoring and output flexibility.
Availability
ISL88012IH526Z-T7A is available at Aetrix Electronics and suitable for industrial embedded control, portable medical instrumentation, and process automation sensor nodes requiring stable component supply despite end-of-life status.
Supply support for ISL88012IH526Z-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
Intersil Corporation is a provider of precision analog and power management ICs, now part of Renesas Electronics, with expertise in supervisory, timing, and interface solutions for industrial and embedded markets.
The ISL88012IH526Z-T7A belongs to the ISL8801x family of voltage supervisors designed specifically for reliable power-on reset, dual-rail monitoring, and manual reset in space-constrained, low-power embedded systems.
FAQ
What is the exact voltage threshold for VDD monitoring on the ISL88012IH526Z-T7A?
The ISL88012IH526Z-T7A has a factory-programmed VDD threshold of 2.63V with ±1.5% accuracy across –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, where VTHVDD = 2.59V (min), 2.63V (typ), 2.67V (max) for the IH526 variant. The ISL88012IH526Z-T7A uses this exact trim.
Does the ISL88012IH526Z-T7A support adjustable power-on reset timeout?
No - the ISL88012IH526Z-T7A does not support adjustable POR timeout. Unlike ISL88011/ISL88014, it lacks a CPOR pin. Its POR timeout is fixed at 200ms (typical), as specified in the Electrical Specifications table (page 7) under tPOR for ISL88012. This value is non-configurable and applies regardless of external components.
Can the ISL88012IH526Z-T7A monitor a 1.2V supply using the VMON pin?
Yes - the ISL88012IH526Z-T7A can monitor a 1.2V supply via VMON using an external resistor divider. With its internal 600mV reference, a 2:1 resistor ratio (e.g., R1 = R2) scales 1.2V to 600mV at VMON. Equation 1 on page 9 confirms VINTRIP = 0.6 × (1 + R1/R2), allowing precise trip-point setting above 0.6V. The datasheet explicitly states VMON supports "custom monitoring of any voltage down to 0.6V".
What are the reset output types provided by the ISL88012IH526Z-T7A?
The ISL88012IH526Z-T7A provides two reset outputs: RST (active-high, push-pull) and RST/MR (active-low, open-drain). As shown in the Pinouts diagram (page 2) and Product Features Table (page 5), both outputs are present on ISL88012. RST drives high during reset; RST/MR pulls low and doubles as manual reset input - enabling simultaneous interface with µPs requiring either polarity.
Is the ISL88012IH526Z-T7A still in active production?
No - the ISL88012IH526Z-T7A is marked "No longer available or supported" in the Ordering Information table (page 3) of FN8093 Rev 5.00. Its part marking is AHJ, and it is listed alongside other discontinued ISL88012 variants. While Aetrix Electronics provides legacy supply support, design-in of ISL88012IH526Z-T7A is not recommended for new projects without lifecycle mitigation planning.
ISL88012IH526Z-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:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.63V, Adj
- 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
ISL88012IH526Z-T7A FAQ
1.How can I place an order for ISL88012IH526Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88012IH526Z-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 ISL88012IH526Z-T7A reliable?
The price and inventory of ISL88012IH526Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88012IH526Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88012IH526Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88012IH526Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88012IH526Z-T7A?
ISL88012IH526Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88012IH526Z-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 ISL88012IH526Z-T7A?
For technical support, including ISL88012IH526Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88012IH526Z-T7A requirements.
6.How does Aetrix verify that ISL88012IH526Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88012IH526Z-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 ISL88012IH526Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88012IH526Z-T7A?
All ISL88012IH526Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88012IH526Z-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 ISL88012IH526Z-T7A part is unused and in its original packaging.
Return procedure for ISL88012IH526Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL88012IH526Z-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…
