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Renesas ISL88014IH5Z-T7A
- Part No.:
- ISL88014IH5Z-T7A
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL88014IH5Z-T7A.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,557
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Product details
Overview
ISL88014IH5Z-T7A from Renesas (formerly Intersil) is a 5-lead SOT-23 dual-voltage supervisor IC with one fixed VDD monitor and one user-adjustable VMON input (0.6V threshold), 200ms nominal power-on reset timeout, manual reset input, and ultra-low 5.5µA supply current. It is used in embedded microcontroller systems to ensure reliable power-up sequencing and brownout protection.
For engineers reviewing the ISL88014IH5Z-T7A datasheet, ISL88014IH5Z-T7A pinout, ISL88014IH5Z-T7A application, or ISL88014IH5Z-T7A equivalent, key selection considerations include its dual-supply monitoring capability (VDD + adjustable VMON), CPOR-based POR timeout extension, ±1.5% voltage threshold accuracy over temperature, and compatibility with low-power battery-operated designs requiring reset assertion down to VDD = 1V.
Technical Context
The ISL88014IH5Z-T7A implements dual independent voltage supervision: VDD is compared against a factory-programmed fixed threshold (no value specified for this variant per Ordering Information), while VMON is compared 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 active for tPOR after recovery.
It supports adjustable Power-On Reset timeout via capacitor on CPOR pin (200ms base, scalable to seconds), features debounced active-low manual reset (MR), and provides complementary RST (push-pull high) and RST/MR (open-drain low) outputs. No watchdog timer or active-high reset output is present in this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 2.0V to 5.5V - supports operation across common logic rails including 2.5V, 3.3V, and 5V systems. |
| VMON Threshold | 600mV ±1.5% - enables precise monitoring of supplies as low as 0.6V using external resistive divider. |
| Supply Current | 5.5µA typical at 3.3V - ensures minimal impact on battery life in portable applications. |
| POR Timeout | 200ms nominal (adjustable via CPOR capacitor) - guarantees stable power before system initialization. |
| Reset Validity | Down to VDD = 1V - maintains functional reset signaling during deep brownout conditions. |
| Threshold Accuracy | ±1.5% over -40°C to +85°C - eliminates need for calibration in industrial temperature environments. |
| Output Types | RST (push-pull active-high) and RST/MR (open-drain active-low) - provides flexibility for interfacing with diverse MCU reset inputs. |
Pinout & Package
Package: 5-lead SOT-23 (Pb-free, RoHS compliant, JEDEC MO178AA / EIAJ SC-74).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST/MR | Combined open-drain reset output & manual reset input | Asserts active-low reset signal; accepts debounced active-low MR pulse ≥1µs for system-initiated reset. |
| 2 - GND | Ground reference | Common return path for all internal circuitry and external bias networks. |
| 3 - VMON | Adjustable voltage monitor input | Compares external voltage (via resistor divider) against internal 600mV reference; triggers reset if below threshold. |
| 4 - VDD | Supply voltage and primary monitored input | Power source and fixed-threshold monitor input; reset asserted if VDD drops below factory-set trip point. |
| 5 - CPOR | Capacitor-based POR timeout adjustment | Connects to ground via external capacitor to extend tPOR beyond 200ms (e.g., 30pF → ~2.5s). |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply monitoring | Simultaneously supervises VDD (fixed threshold) and VMON (0.6V adjustable reference) - enables robust multi-rail validation in compact space. |
| Adjustable POR timeout | CPOR pin allows programmable delay up to several seconds - accommodates slow-ramping supplies or FPGA configuration timing without external timers. |
| Ultra-low quiescent current | 5.5µA typical - extends battery runtime in always-on or intermittent wake-up systems such as IoT sensors and wearables. |
| High-accuracy voltage thresholds | ±1.5% over full industrial temperature range - reduces design margin requirements and eliminates recalibration in field-deployed equipment. |
| Reset validity at low VDD | Functional reset assertion down to VDD = 1V - ensures fail-safe behavior during severe undervoltage events where other supervisors may disable. |
Applications
| Industrial PLC I/O Module | Medical Infusion Pump Controller |
|---|---|
Use Scenario: Monitors 3.3V logic rail and 5V analog supply in a DIN-rail mounted PLC I/O module operating in harsh factory environments. IC Role / Device Role / Timing Role: Dual-voltage supervisor ensuring both rails stabilize before enabling FPGA configuration and communication interfaces. Use Value: Prevents spurious firmware execution due to partial rail ramp-up; ±1.5% threshold accuracy avoids false resets caused by temperature drift. |
Use Scenario: Supervises main 3.3V MCU supply and backup coin-cell voltage in a battery-powered infusion pump with safety-critical runtime monitoring. IC Role / Device Role / Timing Role: Provides guaranteed power-on reset and brownout detection for ARM Cortex-M4 controller, with manual reset support for service mode. Use Value: 5.5µA supply current maximizes battery life; reset valid down to 1V ensures safe shutdown before critical voltage collapse. |
| Automotive Body Control Module (BCM) | Handheld Test Instrument |
Use Scenario: Validates 5V sensor interface rail and 3.3V microcontroller core supply in an under-hood BCM exposed to wide thermal cycling. IC Role / Device Role / Timing Role: Dual-supply monitor with hysteresis prevents chattering during engine cranking-induced voltage sag. Use Value: Immunity to power-supply transients and ±1.5% accuracy over -40°C to +85°C eliminate need for redundant supervision. |
Use Scenario: Ensures clean startup of FPGA-based signal generator core and ADC reference supply in a portable benchtop instrument. IC Role / Device Role / Timing Role: Uses CPOR capacitor to extend POR timeout to 2.5s, allowing FPGA bitstream loading before system initialization. Use Value: Adjustable tPOR replaces discrete RC network, reducing BOM count and PCB area in space-constrained handheld form factor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UT29D3+T | Fixed 2.93V VDD monitor only; no VMON input or adjustable POR; 3-pin SOT-23 package. | Limited to single-rail monitoring; lacks dual-supply capability and CPOR adjustability. | Select when only basic 2.93V supply supervision is required and board space is extremely constrained. |
| TPS3808G12QDBVRQ1 | Single 1.2V fixed monitor; includes watchdog timer and 200ms–10s adjustable POR; automotive-grade AEC-Q100 qualified. | No dual-monitoring; adds watchdog functionality but omits VMON flexibility and manual reset input. | Prefer for automotive applications needing watchdog assurance and extended temperature qualification, but not dual-rail supervision. |
Compared with MAX6326UT29D3+T and TPS3808G12QDBVRQ1, the ISL88014IH5Z-T7A uniquely delivers dual independent voltage supervision (VDD + VMON) with user-adjustable trip points and CPOR-based POR extension - making it optimal for compact, multi-rail embedded systems where flexibility and precision outweigh watchdog or automotive qualification needs.
Availability
ISL88014IH5Z-T7A is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, automotive body electronics, and portable test equipment requiring stable component supply and long-term lifecycle support.
Supply support for ISL88014IH5Z-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 Corporation is a global leader in microcontrollers, analog, power management, and connectivity solutions, formed through the acquisition of Intersil in 2017.
The ISL88014IH5Z-T7A belongs to Renesas' legacy Intersil voltage supervisor product line, designed specifically for space-constrained, low-power embedded systems requiring high-accuracy dual-rail monitoring and flexible reset timing.
FAQ
What is the factory-programmed VDD trip voltage for ISL88014IH5Z-T7A?
The ISL88014IH5Z-T7A does not specify a fixed VDD trip voltage in its Ordering Information table - unlike ISL88011/ISL88013 variants, it is designated for dual monitoring where VDD serves as supply and VMON handles adjustable threshold sensing. Its VDD monitoring function relies on internal factory programming not disclosed per part number, but all devices in the family assert reset if VDD falls below their respective programmed threshold with ±1.5% accuracy.
Can ISL88014IH5Z-T7A monitor two different supply voltages simultaneously?
Yes, the ISL88014IH5Z-T7A monitors VDD (supply rail) and VMON (user-adjustable input) independently. VDD is compared against a fixed internal threshold, while VMON is compared against a 600mV reference - enabling custom monitoring of any second supply (e.g., 12V, 5V, or 1.8V) using an external resistor divider. Both must remain above their trip points to keep reset deasserted.
How do I extend the power-on reset timeout for ISL88014IH5Z-T7A?
Connect a capacitor between the CPOR pin and ground. The ISL88014IH5Z-T7A uses this capacitor to scale the internal POR timeout beyond the nominal 200ms - for example, a 30pF capacitor extends tPOR to approximately 2.5s. Layout best practices require minimizing stray capacitance near CPOR to maintain timing accuracy, as specified in Figure 3 of FN8093 Rev 5.00.
Does ISL88014IH5Z-T7A include a watchdog timer function?
No, the ISL88014IH5Z-T7A does not include a watchdog timer. Per the Product Features Table and Functional Block Diagrams in FN8093 Rev 5.00, watchdog capability is exclusive to ISL88013 and ISL88015 variants (which feature WDI pin). The ISL88014IH5Z-T7A provides manual reset (MR), adjustable POR, dual voltage monitoring, and complementary reset outputs - but no watchdog input or timeout logic.
What is the minimum operating voltage for ISL88014IH5Z-T7A to assert a valid reset signal?
The ISL88014IH5Z-T7A asserts a valid reset signal down to VDD = 1V, as confirmed in the "Features" section and Electrical Specifications table of FN8093 Rev 5.00. This ensures fail-safe behavior during deep brownout conditions where other supervisors may cease functioning, making it suitable for battery-backed or energy-harvesting applications with wide supply variation.
ISL88014IH5Z-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:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 200ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SOT
ISL88014IH5Z-T7A FAQ
1.How can I place an order for ISL88014IH5Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88014IH5Z-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 ISL88014IH5Z-T7A reliable?
The price and inventory of ISL88014IH5Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88014IH5Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL88014IH5Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88014IH5Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88014IH5Z-T7A?
ISL88014IH5Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88014IH5Z-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 ISL88014IH5Z-T7A?
For technical support, including ISL88014IH5Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88014IH5Z-T7A requirements.
6.How does Aetrix verify that ISL88014IH5Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL88014IH5Z-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 ISL88014IH5Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL88014IH5Z-T7A?
All ISL88014IH5Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL88014IH5Z-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 ISL88014IH5Z-T7A part is unused and in its original packaging.
Return procedure for ISL88014IH5Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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