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Renesas ICL7665SAIBAZA
- Part No.:
- ICL7665SAIBAZA
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICL7665SAIBAZA.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,187
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Product details
Overview
ICL7665SAIBAZA from Intersil is a dual CMOS micropower over/under voltage detector in an 8-lead SOIC package, operating from 1.8V to 16V supply, featuring ±5mV trip voltage difference between SET1/SET2 inputs, 100ppm/°C threshold temperature coefficient, and guaranteed ≤10µA quiescent current over -40°C to +85°C. It delivers precise battery fault monitoring in portable instrumentation and memory backup systems.
For engineers reviewing the ICL7665SAIBAZA datasheet, ICL7665SAIBAZA pinout, ICL7665SAIBAZA application, or ICL7665SAIBAZA equivalent, key selection criteria include its individually programmable upper/lower trip points via external resistors, open-drain N-channel OUT1/OUT2 and P-channel HYST1/HYST2 outputs, 2% threshold accuracy (ICL7665SA grade), and industrial-temperature SOIC packaging with Pb-free RoHS compliance.
Technical Context
The ICL7665SAIBAZA integrates two independent comparators referencing a precision 1.3V internal bandgap, enabling simultaneous overvoltage and undervoltage detection on SET1 and SET2 inputs. Each comparator drives dedicated open-drain output stages: OUT1/OUT2 sink up to 20mA, while HYST1/HYST2 source up to 25mA for hysteresis control.
Its design supports resistor-programmable trip thresholds and hysteresis levels without external references. The device maintains stable operation across 1.8–16V supply range and guarantees performance over -40°C to +85°C, with supply voltage sensitivity of ≤0.03%/V and input leakage <10nA at SET pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 16V - Enables direct operation from single Li-ion cells up to 12V industrial rails without regulation. |
| Quiescent Current | ≤10µA max over -40°C to +85°C - Ensures multi-year battery life in always-on fault monitors. |
| Threshold Accuracy | ±2% (ICL7665SA grade) - Guarantees tight trip point repeatability for reliable low-battery shutdown. |
| Temperature Coefficient | 100ppm/°C - Limits drift to ±0.85% over full industrial temperature range, critical for thermal-stable power OK signals. |
| Output Drive | OUT1/OUT2 sink 20mA; HYST1/HYST2 source 25mA - Supports direct interface to LEDs, MOSFET gates, or wired-OR logic without buffers. |
| Input Leakage | <10nA at SET pins - Allows use of high-value resistor dividers (e.g., 10MΩ) without significant threshold error. |
| Delay Time | tSO1D ≤ 90µs (ROUT=4.7kΩ, CL=12pF) - Provides fast response to supply faults while avoiding noise-induced false triggers. |
Pinout & Package
ICL7665SAIBAZA is housed in an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, pkg drawing M8.15), RoHS-compliant with 100% matte tin termination, rated for reflow soldering and suitable for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT1 | Open-drain N-channel output | Sinks current when VSET1 < 1.3V; used for undervoltage alarm or system shutdown signal. |
| 2 HYST1 | Open-drain P-channel hysteresis output | Sources current when VSET1 > 1.3V; shorts external hysteresis resistor to lower trip threshold on falling input. |
| 3 SET1 | Undervoltage detector input | High-impedance comparator input referenced to 1.3V; sets lower trip point via resistor divider from monitored rail. |
| 4 GND | Analog ground reference | Return path for internal bandgap and comparator circuitry; must be low-impedance connection to system ground plane. |
| 5 V+ | Positive supply input | Accepts 1.8–16V; powers internal reference and comparators; also serves as pull-up for HYST outputs. |
| 6 OUT2 | Open-drain N-channel output | Sinks current when VSET2 > 1.3V; used for overvoltage alarm or power-fail warning. |
| 7 SET2 | Overvoltage detector input | High-impedance comparator input referenced to 1.3V; sets upper trip point via resistor divider. |
| 8 HYST2 | Open-drain P-channel hysteresis output | Sources current when VSET2 < 1.3V; shorts external hysteresis resistor to raise trip threshold on rising input. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent detectors | Enables simultaneous overvoltage and undervoltage monitoring on separate rails or thresholds using one IC. |
| Resistor-programmable trip & hysteresis | Eliminates need for external references or op-amps; trip points set by standard resistor dividers, hysteresis added via HYST pin feedback. |
| Industrial temperature range (-40°C to +85°C) | Validated performance across full range ensures reliability in automotive cabin modules, industrial sensors, and outdoor equipment. |
| Guaranteed 10µA max supply current | Supports ultra-low-power designs such as coin-cell-powered data loggers where standby current dominates battery life. |
| Pb-free RoHS-compliant SOIC package | M8.15 outline enables drop-in replacement in legacy designs while meeting modern environmental compliance requirements. |
Applications
| Battery Backup Monitoring | Portable Instrumentation Power Supervision |
|---|---|
|
Use Scenario: Monitoring lithium coin-cell voltage in SRAM backup circuits to prevent data corruption during brownout. IC Role / Device Role / Timing Role: ICL7665SAIBAZA acts as a dual-threshold supervisor: OUT2 asserts low-battery warning at 2.7V, OUT1 triggers write-protection at 2.5V. Use Value: Prevents inadvertent writes to nonvolatile memory during marginal supply conditions, extending data retention integrity beyond 10 years. |
Use Scenario: Power sequencing and fault detection in handheld multimeters with dual supply rails (±5V analog, +3.3V digital). IC Role / Device Role / Timing Role: ICL7665SAIBAZA monitors both rails independently-SET1 on -5V (via inverted divider), SET2 on +5V-to generate unified POWER_OK signal. Use Value: Eliminates need for two discrete supervisors, reducing BOM count and PCB area while ensuring synchronized startup/shutdown behavior. |
| AC Power Fail Detection | Rechargeable Battery Protection |
|
Use Scenario: Detecting AC line dropout in wall-powered medical devices to initiate graceful shutdown and data save before capacitor holdup expires. IC Role / Device Role / Timing Role: ICL7665SAIBAZA's OUT1 monitors rectified AC secondary voltage; HYST1 adds hysteresis to reject ripple-induced false triggers. Use Value: Provides ≥200ms warning time before 5V regulator dropout, enabling safe EEPROM commit and state preservation. |
Use Scenario: Preventing deep discharge of NiMH packs in cordless test tools by disconnecting load at 0.9V/cell. IC Role / Device Role / Timing Role: ICL7665SAIBAZA's SET1 input senses pack voltage; OUT1 drives gate of load-switch MOSFET to isolate battery when threshold crossed. Use Value: Extends cycle life by >300% versus uncontrolled discharge, verified per IEC 62133 standards for rechargeable systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBZR | Single-channel, fixed 3.3V threshold, SOT-23-3 package, 0.9µA typical IQ, no hysteresis pin | Only provides basic reset function; lacks dual-threshold capability and programmable hysteresis | Select when only simple power-on reset is needed and board space is constrained; not suitable for over/under supervision. |
| MAX6326LT29D3+T | Single-channel, fixed 2.93V threshold, SC70-3 package, 1.6µA IQ, built-in 200ms reset timeout | No external trip adjustment; includes integrated reset timer but no second detector or hysteresis control | Choose for microprocessor reset generation where timing-critical POR is required; cannot replace dual-monitoring function of ICL7665SAIBAZA. |
Compared with TLV809E33DBZR and MAX6326LT29D3+T, the ICL7665SAIBAZA uniquely supports independent over/under voltage detection with externally adjustable thresholds and hysteresis-enabling compact, flexible power supervision in battery-backed and multi-rail systems where fixed-threshold alternatives fall short.
Availability
ICL7665SAIBAZA is available at Aetrix Electronics and suitable for battery-operated systems, portable instrumentation, and memory power back-up requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for ICL7665SAIBAZA 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 precision analog and power management solutions provider, now part of Renesas Electronics, with ISO9001-certified manufacturing and a focus on high-reliability industrial and infrastructure markets.
The ICL7665S family was designed specifically for micropower voltage supervision in battery-critical applications-delivering accurate, low-drift trip points with minimal external components and robust latch-up immunity.
FAQ
What is the operating temperature range for the ICL7665SAIBAZA?
The ICL7665SAIBAZA is specified for operation from -40°C to +85°C, validated across this full industrial temperature range with guaranteed electrical performance including supply current ≤10µA, threshold accuracy ±2%, and temperature coefficient 100ppm/°C. This makes it suitable for deployment in automotive, industrial, and outdoor portable equipment environments where ambient conditions vary widely.
How do I configure the ICL7665SAIBAZA for overvoltage and undervoltage detection simultaneously?
To configure the ICL7665SAIBAZA for dual detection, connect SET2 to a resistor divider from the monitored rail for overvoltage detection (trip when VSET2 > 1.3V), and SET1 to a separate divider for undervoltage detection (trip when VSET1 < 1.3V). Use HYST2 to add hysteresis on the overvoltage side and HYST1 on the undervoltage side by feeding back to the respective dividers. Reference Figure 10A in the FN3182 datasheet for exact resistor equations.
Does the ICL7665SAIBAZA require an external reference voltage?
No, the ICL7665SAIBAZA does not require an external reference voltage. It contains an internal bandgap reference generating a precise 1.3V threshold used by both comparators. This eliminates external components and simplifies design while maintaining accuracy across temperature and supply variations, as confirmed in the Functional Block Diagram and Electrical Specifications sections of the FN3182 datasheet.
What is the maximum sink current capability of the OUT1 and OUT2 pins on the ICL7665SAIBAZA?
The OUT1 and OUT2 pins of the ICL7665SAIBAZA can each sink up to 20mA continuously, as specified in the Absolute Maximum Ratings and Electrical Specifications tables of the FN3182 datasheet. This allows direct driving of LEDs, small relays, or MOSFET gates without external buffers-critical for compact, low-component-count power supervision circuits.
Can the ICL7665SAIBAZA be used with supply voltages below 2V?
No, the ICL7665SAIBAZA is not characterized or guaranteed for operation below 1.8V. The Electrical Specifications table explicitly states minimum operating supply voltage as 1.8V over the full -40°C to +85°C range. While some functionality may appear at 1.6V (per absolute min spec), reliable comparator operation, reference stability, and output drive are only assured ≥1.8V, as verified in testing per Figure 6 (Supply Current vs. V+) and Table on Page 3.
ICL7665SAIBAZA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active High
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ICL7665SAIBAZA FAQ
1.How can I place an order for ICL7665SAIBAZA through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7665SAIBAZA 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 ICL7665SAIBAZA reliable?
The price and inventory of ICL7665SAIBAZA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7665SAIBAZA is usually 5 days.
3.What payment methods are accepted for ICL7665SAIBAZA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7665SAIBAZA transactions.
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4.How is shipping managed for ICL7665SAIBAZA?
ICL7665SAIBAZA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7665SAIBAZA 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 ICL7665SAIBAZA?
For technical support, including ICL7665SAIBAZA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7665SAIBAZA requirements.
6.How does Aetrix verify that ICL7665SAIBAZA is sourced from the original manufacturer or authorized distributors?
All ICL7665SAIBAZA 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 ICL7665SAIBAZA meets industry standards.
7.What is the process for return or replacement of ICL7665SAIBAZA?
All ICL7665SAIBAZA units undergo pre-shipment inspection (PSI). If there is an issue with ICL7665SAIBAZA, 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 ICL7665SAIBAZA part is unused and in its original packaging.
Return procedure for ICL7665SAIBAZA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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