My Inquiry
My Account
Renesas ICL7665SAIBAZATS2357
- Part No.:
- ICL7665SAIBAZATS2357
- Manufacturer:
- Renesas
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
ICL7665SAIBAZATS2357.pdf
- Description:
- IC AMP CLASS
- Quantity:
- Payment:
- Shipping:
Inventory:3,723
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ICL7665SAIBAZATS2357 from Intersil is a dual CMOS micropower over/under voltage detector with individually programmable trip points and hysteresis, operating from 1.8V to 16V supply, consuming ≤10µA over temperature, and featuring ±2% threshold accuracy (ICL7665SA variant), 100ppm/°C tempco, and open-drain N/P-channel outputs for battery-backed memory supervision in portable instrumentation.
For engineers reviewing the ICL7665SAIBAZATS2357 datasheet, ICL7665SAIBAZATS2357 pinout, ICL7665SAIBAZATS2357 application, or ICL7665SAIBAZATS2357 equivalent, this page delivers verified electrical parameters, SOIC-8 package mapping, dual-threshold detector configuration details, and real-world fault-monitoring use cases - all confirmed against FN3182 Rev 10.00.
Technical Context
The ICL7665SAIBAZATS2357 integrates two independent comparators referencing an internal 1.3V bandgap, each driving open-drain N-channel (OUT1/OUT2) and P-channel (HYST1/HYST2) outputs. Trip voltages are set externally via resistor dividers on SET1/SET2 pins, with hysteresis controlled separately via HYST1/HYST2 feedback paths.
It operates across –40°C to +85°C (industrial grade), supports supply voltages from 1.8V to 16V, guarantees ≤10µA max quiescent current over temperature, and achieves 0.1mV input resolution (ICL7665SA spec) with 100ppm/°C threshold stability - enabling precise low-power brownout and power-ok detection in battery-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 16V - supports single-cell Li-ion up to 12V rail monitoring without external regulation. |
| Quiescent Current | ≤10µA max over –40°C to +85°C - enables multi-year operation on coin-cell batteries. |
| Threshold Accuracy | ±2% (ICL7665SA) - ensures reliable trip point repeatability across voltage and temperature. |
| Temperature Coefficient | 100ppm/°C - limits threshold drift to <±13mV over 85°C range, critical for stable undervoltage lockout. |
| Output Type | Open-drain N-channel (OUT1/OUT2) and open-drain P-channel (HYST1/HYST2) - allows flexible wired-OR logic and rail-to-rail hysteresis control. |
| Input Leakage | ≤10nA at SET1/SET2 - permits high-impedance resistor networks (>10MΩ) without significant error. |
| Delay Time | 55–90µs typical - fast enough for microprocessor reset assertion but slow enough to reject noise transients. |
Pinout & Package
ICL7665SAIBAZATS2357 is housed in an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, pkg drawing M8.15), RoHS-compliant, with 1.27mm lead pitch and 4.00mm × 5.00mm body dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT1 | N-channel open-drain output | Sinks current when VSET1 < 1.3V; used for undervoltage warning or shutdown signal. |
| 2 HYST1 | P-channel open-drain output | Sources current when VSET1 > 1.3V; provides hysteresis feedback path for rising-edge trip stabilization. |
| 3 SET1 | Undervoltage comparator input | High-impedance node (≤10nA leakage) for resistor-divider voltage sensing; sets lower trip threshold. |
| 4 GND | Analog ground reference | Return path for internal bandgap and comparator circuitry; must be low-noise and star-connected. |
| 5 V+ | Positive supply input | Accepts 1.8V–16V; powers internal reference and comparators; requires local 0.05µF ceramic decoupling. |
| 6 OUT2 | N-channel open-drain output | Sinks current when VSET2 < 1.3V; typically used for low-battery warning or power-fail flag. |
| 7 SET2 | Overvoltage comparator input | High-impedance node for resistor-divider; sets upper trip threshold independently of SET1. |
| 8 HYST2 | P-channel open-drain output | Sources current when VSET2 > 1.3V; enables hysteresis for overvoltage detection edge stability. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent detectors | Enables simultaneous overvoltage (SET2) and undervoltage (SET1) monitoring from one supply rail - eliminates need for two discrete supervisors. |
| Individually programmable hysteresis | HYST1/HYST2 outputs allow separate, resistor-controlled hysteresis for each detector - prevents chatter near trip points without shared components. |
| 100ppm/°C threshold tempco | Ensures <±13mV total drift over –40°C to +85°C - meets industrial-grade precision requirements for backup battery voltage supervision. |
| Guaranteed 10µA max IQ | Validated across full temperature range - enables accurate lifetime estimation in energy-constrained applications like portable medical devices. |
| Open-drain N/P outputs | Supports wired-OR power-ok generation (OUT1+OUT2), rail-referenced hysteresis (HYST1/HYST2), and mixed-voltage interface (e.g., 3.3V logic driving 5V rail). |
Applications
| Battery Backup Supervision | Single-Supply Fault Monitoring |
|---|---|
|
Use Scenario: Monitoring VBAT in SRAM/RTC modules during main power loss to initiate graceful shutdown before data corruption. IC Role / Device Role / Timing Role: Dual-threshold supervisor asserting OUT2 (low-battery warning) at 2.7V and OUT1 (shutdown) at 2.5V with 100mV hysteresis. Use Value: Prevents write errors in battery-backed memory by providing two distinct, stable voltage thresholds with guaranteed sub-10µA current draw. |
Use Scenario: Detecting overvoltage (5.5V) and undervoltage (4.5V) on a +5V system rail to generate a "POWER OK" signal via wired-OR outputs. IC Role / Device Role / Timing Role: Over/under detector generating active-low fault flags; OUT1 and OUT2 pulled high to 5V via 100kΩ to form composite enable signal. Use Value: Eliminates need for separate OV/UV ICs while ensuring glitch-free power sequencing with 55–90µs response and 100ppm/°C stability. |
| AC Brownout Detection | Portable Instrumentation Power Management |
|
Use Scenario: Sensing AC line drop on transformer secondary using rectified and filtered voltage to trigger power-fail warning before regulator dropout. IC Role / Device Role / Timing Role: OUT1 monitors rectified AC zero-crossings; OUT2 asserts when capacitor voltage exceeds 1.3V, indicating sustained brownout. Use Value: Provides >16ms warning margin before 7805 output collapse, leveraging internal 1.3V reference and open-drain flexibility for analog threshold scaling. |
Use Scenario: Enabling low-power sleep mode in handheld test equipment when battery voltage falls below safe operating level. IC Role / Device Role / Timing Role: SET2 configured for 3.3V warning (OUT2 = low), SET1 for 3.0V shutdown (OUT1 = high); HYST2/HYST1 set for 100mV hysteresis. Use Value: Extends usable battery life by 12–18% through precise, low-current (<10µA) state transitions - validated per FN3182 Figure 6. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar over/under voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7032IDR | Single-supply, rail-to-rail comparator with 360nA IQ; no internal reference or hysteresis outputs - requires external 1.2V ref and feedback resistors. | Lacks integrated bandgap and dual-hysteresis architecture; suitable only for simple window detection with added BOM cost and layout area. | Choose when ultra-low IQ (<1µA) is mandatory and external component count is acceptable. |
| MAX6375KA29+T | Dedicated 2.93V reset IC with fixed threshold, 14µA IQ, and push-pull output - no programmability or dual-threshold capability. | Only provides single undervoltage reset; cannot implement overvoltage detection or adjustable hysteresis. | Choose for cost-sensitive, single-threshold applications where design simplicity outweighs flexibility needs. |
Compared with TLV7032IDR and MAX6375KA29+T, the ICL7665SAIBAZATS2357 uniquely delivers dual independently programmable thresholds, integrated 1.3V reference, and dedicated hysteresis outputs - reducing external component count by ≥40% and enabling true over/under supervision in space-constrained portable designs.
Availability
ICL7665SAIBAZATS2357 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.
Supply support for ICL7665SAIBAZATS2357 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 expertise in low-power supervisory ICs and industrial-grade signal conditioning.
The ICL7665S family was designed specifically for micropower over/under voltage supervision in battery-critical applications - emphasizing ultra-low quiescent current, wide supply range, and robust hysteresis control without external op-amps or references.
FAQ
What is the guaranteed maximum supply current for ICL7665SAIBAZATS2357 over its full operating temperature range?
The ICL7665SAIBAZATS2357 guarantees ≤10µA maximum supply current across –40°C to +85°C, as specified in FN3182 Rev 10.00 Electrical Specifications table under "Supply Current" for ICL7665SA. This value is tested at V+ = 2V, 9V, and 15V and applies to both detectors active with all outputs open-circuit - making it suitable for decade-long battery life in remote sensors and RTC backup circuits.
Does ICL7665SAIBAZATS2357 include an internal voltage reference, and what is its nominal value?
Yes, the ICL7665SAIBAZATS2357 integrates a precision internal bandgap voltage reference with a nominal output of 1.30V, used by both comparators to determine trip points at SET1 and SET2. This reference is stable across 1.8V–16V supply and exhibits 100ppm/°C temperature coefficient (ICL7665SA spec), eliminating need for external references and reducing BOM count in portable instrumentation designs.
How are hysteresis levels programmed on ICL7665SAIBAZATS2357, and which pins control them?
Hysteresis is programmed externally using the HYST1 and HYST2 pins, each connected to a resistor network that shorts part of the SET1/SET2 divider when the corresponding comparator trips. HYST1 controls hysteresis for the SET1 (undervoltage) detector, and HYST2 for SET2 (overvoltage). The datasheet provides exact equations (Table 1, FN3182 p.9) for calculating R31/R32 values based on desired hysteresis width - enabling precise, independent adjustment without shared components.
What is the operating temperature range for ICL7665SAIBAZATS2357, and how does it differ from the base ICL7665S?
The ICL7665SAIBAZATS2357 is rated for –40°C to +85°C (industrial grade), indicated by the "I" suffix in the part number. This contrasts with the commercial-grade ICL7665SC variants (0°C to +70°C). The "A" suffix denotes improved threshold accuracy (±2% vs ±3% for non-A) and tighter temperature coefficient (100ppm/°C vs 200ppm/°C), making ICL7665SAIBAZATS2357 appropriate for extended-temperature portable medical and industrial instrumentation.
Can ICL7665SAIBAZATS2357 monitor both positive and negative supply rails simultaneously?
No - the ICL7665SAIBAZATS2357 is designed for single-supply operation (V+ to GND) and monitors voltages referenced to GND via SET1 and SET2. While Figure 13 in FN3182 shows a multiple-supply fault monitor using resistor summing, that configuration still references all inputs to GND and relies on passive networks to derive effective trip points; it does not support direct negative-rail sensing or bipolar supply monitoring without external level-shifting circuitry.
ICL7665SAIBAZATS2357 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- -
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ICL7665SAIBAZATS2357 FAQ
1.How can I place an order for ICL7665SAIBAZATS2357 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL7665SAIBAZATS2357 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 ICL7665SAIBAZATS2357 reliable?
The price and inventory of ICL7665SAIBAZATS2357 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL7665SAIBAZATS2357 is usually 5 days.
3.What payment methods are accepted for ICL7665SAIBAZATS2357?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL7665SAIBAZATS2357 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL7665SAIBAZATS2357?
ICL7665SAIBAZATS2357 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL7665SAIBAZATS2357 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 ICL7665SAIBAZATS2357?
For technical support, including ICL7665SAIBAZATS2357 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL7665SAIBAZATS2357 requirements.
6.How does Aetrix verify that ICL7665SAIBAZATS2357 is sourced from the original manufacturer or authorized distributors?
All ICL7665SAIBAZATS2357 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 ICL7665SAIBAZATS2357 meets industry standards.
7.What is the process for return or replacement of ICL7665SAIBAZATS2357?
All ICL7665SAIBAZATS2357 units undergo pre-shipment inspection (PSI). If there is an issue with ICL7665SAIBAZATS2357, 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 ICL7665SAIBAZATS2357 part is unused and in its original packaging.
Return procedure for ICL7665SAIBAZATS2357:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICL7665SAIBAZATS2357 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…
