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Maxim > Products > [Supervisors, Voltage Monitors, Sequencers] 
ICL7665
µP Voltage Monitor with Dual Over/Undervoltage Detection

Microprocessor Voltage Monitor with Dual Over/Undervoltage Detection


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 128kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The ICL7665 warns microprocessors (µPs) of overvoltage and undervoltage conditions. It draws a typical operating current of only 3µA. The trip points and hysteresis of the two voltage detectors are individually programmed via external resistors to any voltage greater than 1.3V. The ICL7665 will operate from any supply voltage in the 1.6V to 16V range, while monitoring voltages from 1.3V to several hundred volts. The Maxim ICL7665A is an improved version with a 2%-accurate VSET1 threshold and guaranteed performance over temperature.

The 3µA quiescent current of the ICL7665 makes it ideal for voltage monitoring in battery-powered systems. In both battery- and line-powered systems, the unique combination of a reference, two comparators, and hysteresis outputs reduces the size and component count of many circuits.

Key Features   Applications/Uses
  • µP Over/Undervoltage Warning
  • Improved Second Source
  • Dual Comparator with Precision Internal Reference
  • 3µA Operating Current
  • 2% Threshold Accuracy (ICL7665A)
  • 1.6V to 16V Supply Voltage Range
  • On-Board Hysteresis Outputs
  • Externally Programmable Trip Points
  • Monolithic, Low-Power CMOS Design

 
  		• µP Voltage Monitoring
  		• Battery-Backup Switching
  		• High/Low Temperature, Pressure, Voltage Alarms
  		• Low-Battery Detection
  		• Over/Undervoltage Protection
  		• Power Supply Fault Monitoring
  		• Power-Fail and Brownout Detection

    Key Specifications:  Supervisors (2 Monitored Voltages)
    Part Number Interface Reset Thresh.
    (V)    		 Reset Out Reset Out tRESET Watchdog Feature Supervisor Features Reset Thresh. Accur.
    (%)    		 ICC
    (µA)    		 Price
    Active Low Active High min @ +25°C max See Notes
    ICL7665  R/C Adjustable
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    		 Open Drain Open Drain <1ms No Watchdog
    Adjustable Reset Input
    Overvoltage/Window Monitor
    		 2 15 $2.23 @1k
    See All Supervisors (2 Monitored Voltages) (84)

    Diagram
    ICL7665: Typical Operating Circuit
    Typical Operating Circuit

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-33 of 33

    ICL7665 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    ICL7665ACJA    
    		Active CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665BCJA    
    		Active CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665CJA    
    		Active CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665IJA  
    		Active CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665ACJA/HR    
    		Active CDIP(N);8 pin;83 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665AC/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    ICL7665BC/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    ICL7665C/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    ICL7665ACTV    
    		Active TO99;8 pin;88 mm²
    Outline Drawing: 21-0022 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: T99-8*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665BCTV    
    		Active TO99;8 pin;88 mm²
    Outline Drawing: 21-0022 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: T99-8*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665CTV  
    		Active TO99;8 pin;88 mm²
    Outline Drawing: 21-0022 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: T99-8*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665AEPA+  
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7665ACPA+  
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7665ACPA  
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665BCPA  
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665CPA  
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665AEPA    
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665EPA  
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665IPA  
    		Active PDIP(N);8 pin;80 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665CSA+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7665CSA+T    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7665ACSA  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665ACSA-T    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665BCSA  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665BCSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    ICL7665CSA  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665CSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    ICL7665ACSA+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7665ACSA+T    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7665AESA    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665AESA-T    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7665AESA+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7665AESA+T    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Notes and Comments
    • Dual channel: one inverting, one noninverting

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    Document Ref.: 19-0001; Rev 2; 1997-08-01
    This page last modified: 2007-05-31


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