My Inquiry
My Account
Renesas ICL7665SCBAZA
- Part No.:
- ICL7665SCBAZA
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICL7665SCBAZA.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,055
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ICL7665SCBAZA from Intersil is a CMOS micropower dual over/under voltage detector IC with individually programmable trip points, 1.3V internal bandgap reference, ±5mV trip voltage difference, and 10µA maximum quiescent current across 0°C to +70°C - used for battery-operated system fault monitoring and power-OK signaling.
For engineers reviewing the ICL7665SCBAZA datasheet, ICL7665SCBAZA pinout, ICL7665SCBAZA application, or ICL7665SCBAZA equivalent, this page delivers verified electrical specs, SOIC-8 package details, dual comparator circuit role, hysteresis configuration guidance, and real-world use cases in portable instrumentation and memory backup systems.
Technical Context
The ICL7665SCBAZA integrates two independent high-impedance comparators referencing a stable 1.3V bandgap source, each driving open-drain N-channel (OUT1/OUT2) and P-channel (HYST1/HYST2) outputs. Trip thresholds are set externally via resistor dividers on SET1/SET2 pins, with hysteresis controlled by HYST1/HYST2 feedback paths.
It operates from 1.8V to 16V supply across 0°C to +70°C, guarantees ≤10µA supply current at temperature extremes, supports up to 20mA output sink capability, and exhibits 100ppm/°C threshold temperature coefficient - enabling precise, low-power voltage supervision in space-constrained battery systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 16V - supports single-cell Li-ion up to 12V industrial rails without external regulation. |
| Quiescent Current | ≤10µA max over full temp range - enables multi-year operation on coin-cell batteries. |
| Internal Reference | 1.3V ±0.1V - provides stable trip baseline independent of V+ variation (0.03%/V sensitivity). |
| Output Sink Capability | 20mA per OUTx - directly drives LEDs, MOSFET gates, or logic inputs without buffer stages. |
| Threshold Accuracy | ±50mV difference between VSET1 and VSET2 - allows tight over/under window detection (e.g., 4.45V–4.55V). |
| Temperature Coefficient | 100ppm/°C - ensures <±10mV drift over 0°C to +70°C for reliable trip point stability. |
| Propagation Delay | 55–90µs - fast enough for real-time brownout response while maintaining micropower operation. |
Pinout & Package
ICL7665SCBAZA is housed in an 8-lead narrow-body SOIC (M8.15), RoHS-compliant, Pb-free package with 1.27mm lead pitch and JEDEC MS-012-AA compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT1 | Open-drain N-channel output | Sinks current when VSET1 < 1.3V - used for undervoltage alarm or shutdown assertion. |
| 2: HYST1 | Open-drain P-channel output | Sources current when VSET1 > 1.3V - enables programmable hysteresis by shorting external resistor networks. |
| 3: SET1 | Comparator 1 input | High-impedance node (≤10nA leakage) for resistor-divider voltage sensing - sets first trip threshold. |
| 4: GND | Analog ground reference | Return path for internal bandgap and comparator bias - must be low-impedance to avoid false trips. |
| 5: V+ | Positive supply rail | Power input (1.8–16V); also supplies internal reference and output drivers - decoupling capacitor required. |
| 6: OUT2 | Open-drain N-channel output | Sinks current when VSET2 < 1.3V - independently configured for second fault condition (e.g., overvoltage). |
| 7: SET2 | Comparator 2 input | Independent high-Z input for second voltage divider - enables dual-threshold monitoring from one supply. |
| 8: HYST2 | Open-drain P-channel output | Sources current when VSET2 > 1.3V - provides hysteresis control for second detector channel. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent comparators | Enables simultaneous overvoltage and undervoltage detection using shared 1.3V reference - eliminates need for two discrete detectors. |
| Programmable hysteresis per channel | HYST1/HYST2 outputs allow resistor-network reconfiguration to set rising/falling trip offsets - prevents chatter near threshold. |
| 10µA max supply current | Guaranteed over full 0°C to +70°C range - extends battery life in portable pagers and handheld instruments. |
| Open-drain output architecture | OUT1/OUT2 sink up to 20mA; HYST1/HYST2 source up to 25mA - supports wired-OR power-OK signals and direct MOSFET gate drive. |
| 1.3V internal bandgap reference | Stable, supply-independent threshold baseline - reduces component count vs. external reference solutions. |
| Pb-free SOIC-8 packaging | M8.15 outline with 1.27mm pitch - compatible with standard reflow processes and automated assembly lines. |
Applications
| Battery Low-Voltage Warning | Single-Supply Power-OK Monitoring |
|---|---|
|
Use Scenario: Detecting falling battery voltage in portable computers before critical discharge occurs. IC Role / Device Role / Timing Role: ICL7665SCBAZA acts as dual-threshold supervisor - SET2 triggers early warning LED at 3.3V; SET1 asserts shutdown at 3.0V. Use Value: Prevents data loss and battery damage by enabling graceful system shutdown with 300mV hysteresis margin. |
Use Scenario: Generating a clean "POWER OK" signal for microprocessor reset during 5V rail startup and brownout. IC Role / Device Role / Timing Role: ICL7665SCBAZA compares regulated 5V against 4.45V (undervoltage) and 5.55V (overvoltage) thresholds. Use Value: Wired-OR outputs provide glitch-free, noise-immune reset assertion with <90µs response to supply excursions. |
| Memory Backup Supply Supervision | AC Brownout Detection |
|
Use Scenario: Ensuring CMOS SRAM retains data during main power failure using backup battery. IC Role / Device Role / Timing Role: ICL7665SCBAZA monitors backup battery voltage and disables write-enable when below 2.7V. Use Value: Eliminates need for external voltage dividers and op-amps - achieves <10µA total standby current. |
Use Scenario: Detecting AC line sag in wall-powered equipment before DC rail collapse. IC Role / Device Role / Timing Role: ICL7665SCBAZA senses rectified AC waveform via RC time constant on SET1 pin. Use Value: Provides >16ms warning before 5V regulator dropout - sufficient for safe firmware save operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7032IDR | Push-pull outputs (no open-drain), fixed 1.24V reference, 360nA quiescent current, no HYST pins | Lacks programmable hysteresis and dual independent trip control - requires external components for window detection | Choose TLV7032IDR only if ultra-low IQ (<1µA) is critical and hysteresis can be implemented externally |
| MAX6326UT46D3+T | Fixed 4.63V reset threshold, single-output, no dual-comparator architecture, 1.6µA IQ | Cannot perform over/under supervision - limited to single-rail reset generation | Select MAX6326UT46D3+T only for simple power-on reset where dual-threshold functionality is unnecessary |
Compared with TLV7032IDR and MAX6326UT46D3+T, the ICL7665SCBAZA uniquely delivers fully programmable dual-threshold detection with integrated hysteresis control in a single SOIC-8 package - essential for compact battery-fault monitors requiring both early warning and hard shutdown.
Availability
ICL7665SCBAZA is available at Aetrix Electronics and suitable for battery-operated systems, portable instrumentation, and memory power back-up applications requiring stable component supply and long-term lifecycle support.
Supply support for ICL7665SCBAZA 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 semiconductor provider, now part of Renesas Electronics, with ISO9001-certified manufacturing and global distribution.
The ICL7665S product line was designed specifically for micropower voltage supervision in portable and battery-critical systems - emphasizing ultra-low IQ, wide supply range, and flexible external programming.
FAQ
What is the guaranteed maximum supply current for ICL7665SCBAZA over its full operating temperature range?
The ICL7665SCBAZA guarantees ≤10µA maximum supply current across 0°C to +70°C ambient temperature, measured at V+ = 2V, 9V, and 15V - critical for multi-year battery life in portable devices. This specification is validated per FN3182 Rev 10.00 Electrical Characteristics table under "Supply Current".
Can ICL7665SCBAZA monitor both overvoltage and undervoltage conditions simultaneously on the same supply rail?
Yes, the ICL7665SCBAZA uses SET1 and SET2 inputs with independent resistor dividers to configure distinct upper (overvoltage) and lower (undervoltage) trip thresholds on a single V+ rail. Its dual-comparator architecture and open-drain outputs enable wired-OR power-OK signaling - as demonstrated in Figure 12 of the FN3182 datasheet.
What package type and footprint does ICL7665SCBAZA use, and is it RoHS-compliant?
ICL7665SCBAZA uses an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, Intersil drawing M8.15), with 1.27mm lead pitch and Pb-free matte tin termination. It is RoHS-compliant and qualified for standard reflow soldering - confirmed in the Ordering Information table on page 2 of FN3182 Rev 10.00.
How is hysteresis implemented on ICL7665SCBAZA, and what design flexibility does it offer?
Hysteresis on ICL7665SCBAZA is implemented using HYST1 and HYST2 open-drain P-channel outputs to short external resistors in the SET1/SET2 divider networks - allowing independent, programmable hysteresis per channel. Figures 10A and 11 in FN3182 show two valid configurations, with equations in Table 1 defining exact trip point shifts.
Does ICL7665SCBAZA require external components to operate, and what is the minimum required for basic threshold detection?
Yes, ICL7665SCBAZA requires external resistor dividers on SET1 and SET2 to define trip voltages, plus pull-up resistors on OUT1/OUT2 for logic-level outputs. For basic single-threshold detection (Figure 9), only two resistors per channel and one pull-up are needed - no capacitors or active components are mandatory for core functionality.
ICL7665SCBAZA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ICL7665SCBAZA FAQ
1.How can I place an order for ICL7665SCBAZA through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7665SCBAZA 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 ICL7665SCBAZA reliable?
The price and inventory of ICL7665SCBAZA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7665SCBAZA is usually 5 days.
3.What payment methods are accepted for ICL7665SCBAZA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7665SCBAZA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7665SCBAZA?
ICL7665SCBAZA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7665SCBAZA 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 ICL7665SCBAZA?
For technical support, including ICL7665SCBAZA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7665SCBAZA requirements.
6.How does Aetrix verify that ICL7665SCBAZA is sourced from the original manufacturer or authorized distributors?
All ICL7665SCBAZA 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 ICL7665SCBAZA meets industry standards.
7.What is the process for return or replacement of ICL7665SCBAZA?
All ICL7665SCBAZA units undergo pre-shipment inspection (PSI). If there is an issue with ICL7665SCBAZA, 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 ICL7665SCBAZA part is unused and in its original packaging.
Return procedure for ICL7665SCBAZA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICL7665SCBAZA 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
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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…
