 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Advanced Monolithic Systems FEATURES * Very Low Supply Current * Wide Operating Voltage Range * 2% Precision Voltage Detection * Detection Threshold from 2V to 6V in 0.1V increments * 5mA Sink Current Capability * 5% Typical Hysteresis AMS26 VOLTAGE DETECTOR APPLICATIONS * CPU and Logic Circuit Reset * Portable and Battery Powered Equipment * Memory Battery Back-Up Circuit * Window Comparator * Cellular Phones * Pagers GENERAL DESCRIPTION The AMS26 series are voltage detector ICs featuring a high accuracy detector threshold of 2.0% and ultra-low supply current. Internal circuit contains a precision voltage reference, a comparator, resistor network, and an output driver. The AMS26 has an N-channel open drain output. The detector threshold is set from 2.0V to 6.0V in 0.1V increments, thus making it easy to use in a variety of supervisory applications including microprocessor reset circuits, memory battery back-up circuit, battery checker, power failure detector and portable and battery powered electronics. AMS26 is available in TO-92 and the sub-miniature 3-pin SOT-23 surface mount package. ORDERING INFORMATION OUTPUT TO-92 TYPE OPEN DRAIN AMS26N-XA X= Detector Threshold Setting. PACKAGE TYPE 3 LEAD SOT-23 AMS26M-XA OPERATING TEMPERATURE RANGE -30 to +80 C PIN CONNECTIONS TO-92 Plastic Package (N) 3L SOT-23 (M) VDD 1 2 3 VOUT GND VDD VOUT GND Bottom View Top View Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS26 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage Output Voltage Output Current Operating Temperature Range 16V VSS - 0.3V toVDD+0.3V 70mA -30C to +80C Power Dissipation : TO-92 package SOT-23 package Storage Temperature Lead Temperature (Soldering 10 sec) 300mW 150mW -40C to +125C 230C ELECTRICAL CHARACTERISTICS Electrical Characteristics at TA=25C, unless otherwise noted. PARAMETER Detector Threshold (VDET) Detector Threshold Hysteresis Supply Current VIN = 2.0V VIN = 3.0V VIN = 4.0V VIN = 5.0V Operating Voltage Output Current VIN = 2.0V VIN = 3.0V VIN = 4.0V VIN = 5.0V Output Delay Time Detector Threshold Temperature Coefficient -30CTA+80C 100 1.50 1.5 3.0 4.0 5.0 7.7 10.1 11.5 13.0 100 s ppm/C CONDITIONS (Note 2) Min. -2.0 (VDET) * 3% AMS26-X Typ. Units Max. +2.0 (VDET) * 7% % V A 1.0 1.3 1.6 2.0 3.0 3.4 3.8 4.2 10.00 V mA Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. For guaranteed performance limits and associated test conditions, see the Electrical Characteristics tables. BLOCK DIAGRAM VDD 2 1 OUT + VREF 3 GND Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS26 TIME CHART Released Voltage Supply Voltage (VDD) Detected Voltage Minimum Operating Voltage GND Detector Threshold Hysteresis B A Output Voltage (OUT) GND tPLH OUTPUT DELAY TIME Output Delay Time tPHL is defined as the time period from Time A through Time B, when the time at which a pulse voltage that increases from 1.2V to +VDET+2.0V is applied to VDD is Time A, and the time at which the output reaches 3.5V under the conditions that the output pin (OUT) is pulled up to 7V by a resistor of 100k is Time B. +VDET +2.0V Supply Voltage (VDD) 1.2V GND 7.0V Output Voltage (OUT) 3.5V GND tPHL A B tPHL TEST CIRCUITS Detector Threshold Test Circuit Output Current Test Circuit VDD VDD 100k R VDET VDD VDD AMS26A SERIES GND VSS VSS VSS IOUT OUT +VDS AMS26A SERIES GND VSS OUT Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS26 TYPICAL APPLICATIONS CPU Reset Circuit VDD VDD 100 R VDD CPU RESET GND VDD1 VDD 100 R VDD CPU RESET GND VDD2 AMS26A SERIES GND OUT AMS26A SERIES GND OUT Input Voltage to AMS26 is the same as the input voltage to CPU. Input Voltage to AMS26 is different from the input voltage to CPU. Output Delay Time Circuit VDD VDD 100 R VDD CPU RESET GND Voltage Level Indicator Circuit (lighted when the power runs out) VDD VDD OUT AMS26A SERIES GND AMS26A OUT SERIES GND Detector Threshold Changing Circuit VDD R1 OUT AMS26A SERIES GND VDD Changed Detector Threshold = R1 + R2 (-V DET) R2 Hysteresis Voltage = C R2 R1 + R2 (-V HYS) R2 When the value of R1 becomes excessively large, the detector threshold detected may differ from the value calculated using above formula. Window Comparator Circuit VDET1 VDD VDD 100 OUT VSS OUT VSS VDD VDET2 VDD AMS26A OUT SERIES VDET1 GND AMS26A OUT SERIES VDET2 GND Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 |
Price & Availability of AMS26N-A
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |