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Renesas ISL88015IH5Z-TK
- Part No.:
- ISL88015IH5Z-TK
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL88015IH5Z-TK.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,876
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Product details
Overview
ISL88015IH5Z-TK from Intersil is a 5-lead SOT-23 voltage supervisor IC with dual monitoring capability: fixed VDD supervision and user-adjustable VMON input down to 0.6V, integrated watchdog timer (1.6s normal / 51s start-up timeout), manual reset input, and active-low/high reset outputs. It delivers ±1.5% threshold accuracy over -40°C to +85°C and draws only 4.5µA typical supply current at 3.3V - used in embedded microcontroller power sequencing and brownout protection.
For engineers reviewing the ISL88015IH5Z-TK datasheet, ISL88015IH5Z-TK pinout, ISL88015IH5Z-TK application, or ISL88015IH5Z-TK equivalent, key selection considerations include its dual-supply monitoring architecture, watchdog timing behavior, ultra-low quiescent current, reset validity down to VDD = 1V, and compatibility with battery-powered and industrial control systems requiring high-voltage-threshold stability.
Technical Context
The ISL88015IH5Z-TK implements a dual-threshold supervision architecture: VDD is compared against a factory-programmed fixed trip point (not specified for this variant per ordering table), while VMON monitors an externally adjustable voltage via internal 600mV reference. Reset assertion occurs when either input falls below its threshold, with hysteresis preventing chatter.
Its watchdog timer features two distinct timeout modes - 51s start-up delay (to accommodate boot sequences) and 1.6s nominal timeout - cleared by WDI edge transitions or manual reset. The device asserts complementary RST (push-pull high) and RST/MR (open-drain low) outputs, both valid down to VDD = 1V, and supports debounced manual reset via MR pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 2.0V to 5.5V - supports operation across common logic supply rails including 3.3V and 5V systems. |
| VMON Threshold | Fixed 0.6V internal reference - enables monitoring of any supply ≥0.6V using external resistor divider; default trip point without external components. |
| Supply Current | 4.5µA (typ) at 3.3V - ensures minimal impact on battery life in portable equipment. |
| Reset Validity | Down to VDD = 1V - guarantees reliable reset assertion during deep brownout conditions. |
| Watchdog Timeout | 1.6s normal / 51s start-up - prevents premature reset during OS/FPGA initialization while maintaining runtime fault detection. |
| Threshold Accuracy | ±1.5% over temperature - eliminates need for calibration in industrial-grade applications. |
| Reset Output Types | Complementary active-high RST and active-low open-drain RST/MR - provides flexibility for interfacing with diverse MCU reset inputs. |
Pinout & Package
ISL88015IH5Z-TK uses a Pb-free 5-lead SOT-23 package (JEDEC MO178AA, Intersil pkg drawing P5.064), measuring 2.9mm × 1.6mm × 1.1mm, with gull-wing leads and 0.95mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST/MR | Combined open-drain reset output & manual reset input | Asserts low during reset; accepts debounced active-low push-button or controller signal to trigger system reset. |
| 2 - GND | Ground reference | Common return path for all internal circuits and external bias networks; must be low-impedance connection. |
| 3 - VMON | Adjustable voltage monitor input | Compares external voltage (via resistor divider) against internal 600mV reference; trip point scalable above 0.6V. |
| 4 - VDD | Supply voltage and primary monitored rail | Power source and fixed-threshold supervision input; reset asserted if VDD drops below factory-set VTHVDD (value not specified for ISL88015). |
| 5 - WDI | Watchdog timer input | Edge-sensitive input - rising or falling edges clear 1.6s/51s watchdog timer; no toggle required during start-up phase. |
Key Features
| Feature | Design Value |
|---|---|
| Dual voltage supervision | Simultaneous monitoring of VDD (fixed threshold) and VMON (user-adjustable ≥0.6V) enables robust multi-rail power integrity checking. |
| Watchdog with dual timeout | 51s start-up window avoids false resets during boot; 1.6s runtime timeout detects firmware hangs without software intervention. |
| Ultra-low quiescent current | 4.5µA typical at 3.3V allows integration into always-on subsystems without compromising battery runtime. |
| Reset validity to 1V | Ensures deterministic reset behavior even under severe undervoltage - critical for fail-safe shutdown in industrial controllers. |
| ±1.5% threshold accuracy | Eliminates need for external trimming or margining in precision power monitoring applications such as medical instrumentation. |
Applications
| Industrial PLC Power Sequencing | Battery-Powered IoT Sensor Node |
|---|---|
Use Scenario: Monitoring 3.3V microcontroller supply and 1.8V sensor rail in programmable logic controller backplane. IC Role / Device Role / Timing Role: Dual-supervisor ensures both rails stabilize before enabling CPU clock and peripheral enable signals; watchdog guards against firmware lockup during field updates. Use Value: Prevents corrupted I/O state during brownout; 1.6s watchdog timeout matches typical OTA update window without false triggers. |
Use Scenario: Long-life environmental sensor node powered by coin cell, requiring wake-on-event and periodic telemetry transmission. IC Role / Device Role / Timing Role: VMON monitors battery voltage (via divider) to trigger graceful shutdown at 2.2V; VDD supervision validates LDO output before MCU wake-up. Use Value: 4.5µA quiescent current extends shelf life; reset valid to 1V ensures final data flush before cutoff. |
| Medical Diagnostic Handheld | Automotive Body Control Module |
Use Scenario: Portable ultrasound device with FPGA-based image processing and analog front-end requiring synchronized power-up. IC Role / Device Role / Timing Role: ISL88015IH5Z-TK supervises main 5V supply and FPGA core voltage (1.2V via VMON); 51s start-up timeout accommodates FPGA configuration time. Use Value: Complementary RST/RST-MR outputs interface directly with FPGA PROG_B and processor nRESET pins without level-shifting. |
Use Scenario: Low-power body control unit monitoring 12V battery rail and 5V MCU supply in automotive door module. IC Role / Device Role / Timing Role: VMON configured for 9V–16V battery range; VDD monitors regulated 5V rail; watchdog detects CAN firmware stalls. Use Value: ±1.5% threshold accuracy meets AEC-Q100 Grade 2 requirements for supply monitoring tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL88014IH5Z-TK | Lacks watchdog timer; retains dual supervision (VDD + adjustable VMON) and same 5-pin SOT-23 package. | Suitable where system-level watchdog is handled externally or unnecessary; lower BOM cost. | Select ISL88014IH5Z-TK if watchdog functionality is redundant and supply current <5µA remains critical. |
| MAX6326UT29D3+ | Single-supply supervisor (2.93V fixed threshold), no VMON or watchdog; SOT-23-5, ±1.5% accuracy, 1.6µA IDD. | Applicable only for basic VDD monitoring; no dual-rail or watchdog capability. | Choose MAX6326UT29D3+ only for cost-sensitive, single-rail designs where ultra-low 1.6µA current outweighs feature loss. |
Compared with ISL88015IH5Z-TK, ISL88014IH5Z-TK removes watchdog functionality while preserving dual-supply monitoring and ultra-low current, whereas MAX6326UT29D3+ reduces complexity and current further but sacrifices adjustability and redundancy - making ISL88015IH5Z-TK the sole option when both VMON configurability and watchdog assurance are mandatory.
Availability
ISL88015IH5Z-TK is available at Aetrix Electronics and suitable for industrial control systems, battery-powered medical devices, and automotive body electronics requiring stable component supply despite its discontinued status - supported via legacy inventory and cross-reference engineering assistance.
Supply support for ISL88015IH5Z-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
Intersil Corporation (now part of Renesas Electronics) is a provider of precision analog and power management ICs, emphasizing high-accuracy voltage references, supervisors, and DC-DC controllers for industrial and infrastructure markets.
The ISL8801x family was designed specifically for space-constrained embedded systems needing reliable, low-power power-on reset, dual-rail monitoring, and watchdog safety - targeting applications where board area, current budget, and functional integration are critical constraints.
FAQ
What is the fixed VDD threshold voltage for ISL88015IH5Z-TK?
The ISL88015IH5Z-TK datasheet does not specify a factory-programmed VDD threshold voltage in the Ordering Information table or Electrical Specifications section. Unlike ISL88011/ISL88012/ISL88013 variants, ISL88015IH5Z-TK is designated for adjustable VMON monitoring only; its VDD pin serves as supply input but lacks a documented fixed trip point - supervision relies solely on VMON configuration.
Does ISL88015IH5Z-TK support manual reset functionality?
Yes, ISL88015IH5Z-TK supports manual reset via the RST/MR pin (Pin 1), which functions as a debounced active-low input. Pulling RST/MR below 100mV for ≥1µs asserts both RST and RST/MR outputs for the full POR timeout period (200ms), enabling push-button or controller-driven system reset independent of supply conditions.
Can ISL88015IH5Z-TK monitor voltages below 0.6V?
No, ISL88015IH5Z-TK cannot monitor voltages below 0.6V. Its VMON input compares against an internal 600mV reference (VTHVMON), and the datasheet explicitly states the adjustable trip point is "greater than 0.6V" using external resistors - the minimum valid threshold is 0.6V, with no provision for sub-600mV operation.
What is the maximum operating temperature range for ISL88015IH5Z-TK?
The ISL88015IH5Z-TK is rated for industrial temperature operation from -40°C to +85°C, as confirmed in the Ordering Information table on page 3 of FN8093 Rev 5.00. Absolute maximum junction temperature is +125°C, but recommended continuous operation remains within the -40°C to +85°C ambient range.
Is ISL88015IH5Z-TK RoHS compliant and Pb-free?
Yes, ISL88015IH5Z-TK is RoHS compliant and Pb-free, as stated in the datasheet's Features section and Ordering Information notes. It uses 100% matte tin (e3) termination finish and meets IPC/JEDEC J-STD-020 reflow standards for lead-free assembly.
ISL88015IH5Z-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:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SOT
ISL88015IH5Z-TK FAQ
1.How can I place an order for ISL88015IH5Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL88015IH5Z-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 ISL88015IH5Z-TK reliable?
The price and inventory of ISL88015IH5Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL88015IH5Z-TK is usually 5 days.
3.What payment methods are accepted for ISL88015IH5Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL88015IH5Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL88015IH5Z-TK?
ISL88015IH5Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL88015IH5Z-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 ISL88015IH5Z-TK?
For technical support, including ISL88015IH5Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL88015IH5Z-TK requirements.
6.How does Aetrix verify that ISL88015IH5Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL88015IH5Z-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 ISL88015IH5Z-TK meets industry standards.
7.What is the process for return or replacement of ISL88015IH5Z-TK?
All ISL88015IH5Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL88015IH5Z-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 ISL88015IH5Z-TK part is unused and in its original packaging.
Return procedure for ISL88015IH5Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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