AS331 consists single precision voltage comparator with typical input
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Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR General Description
AS331 consists single precision voltage comparator with typical input offset voltage 1.0mV high voltage gain. specifically designed operate from single power supply over wide range voltages. Operation from split power supply also possible power supply current drain independent magnitude power supply voltage. AS331 available standard SOT-23-5 package.
AS331
Wide Supply Voltage Range Single Supply: Dual Supplies: ±18V Supply Current VCC=5V: 0.4mA Input Bias Current: 25nA (Typical) Input Offset Current:5nA (Typical) Input Offset Voltage: (Typical) Input Common Mode Voltage Range Includes Ground Differential Input Voltage Range Equals Power Supply Voltage Output Saturation Voltage 4mA: 200mV (Typical) Open Collector Output
Applications
Battery Charger Cordless Telephone Switching Power Supply DC-DC Module Motherboard Communication Equipment
SOT-23-5
Figure Package Type AS331
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Configuration
Package (SOT-23-5)
AS331
INPUTGND INPUT+
OUTPUT
Figure Configuration AS331 (Top View)
Functional Block Diagram
INPUT+
OUTPUT
INPUT-
Figure Functional Block Diagram AS331
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Ordering Information
AS331 Circuit Type Package SOT-23-5
Temperature Range 85oC Part Number Lead Free AS331KTR-E1 Green AS331KTR-G1 Marking Lead Free Green Packing Type Tape Reel
AS331
Lead Free Green Tape Reel
Package SOT-23-5
Semiconductor's Pb-free products, designated with "E1" suffix part number, RoHS compliant. Products with "G1" suffix available green package.
Absolute Maximum Ratings (Note
Parameter Supply Voltage Differential Input Voltage Input Voltage Input Current (VIN<-0.3V) (Note Output Short-circuit Current Ground Power Dissipation (TA=25oC) Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10sec) TSTG TLEAD Symbol Value -0.3 Continuous
Unit
Note Stresses greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "Recommended Operating Conditions" implied. Exposure "Absolute Maximum Ratings" extended periods affect device reliability. Note This input current will only exist when voltage input leads driven negative. collector-base junction input transistors becoming forward biased thereby acting input diode clamps. addition this diode action, there also lateral parasitic transistor action chip. This transistor action cause output voltages comparators voltage level ground large overdrive) time duration that input driven negative. This destructive normal output states will re-establish when input voltage, which negative, again returns value greater than -0.3V 25oC). Aug. 2008 Rev. Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Recommended Operating Conditions
Parameter Symbol Unit
AS331
Supply Voltage Operating Ambient Temperature Range
Electrical Characteristics
VCC=5V, GND=0V, TA=25oC, unless otherwise specified. Bold typeface applies over TA=-40 85oC (Note Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Common Mode Voltage Range (Note Symbol Conditions VOUT=1.4V, VCC=5 IIN+ IIN- with output linear range, VCM=0V IIN+-IIN-, VCM=0V VCC=30V VCC=5V Supply Current VCC=30V VCC-1.5 Voltage Gain Large Signal Response Time Response Time Output Sink Current Output Leakage Current ISINK ILEAK VSAT VCC=15V, RL15k, VOUT=1 =TTL Logic Swing, RL=5.1k RL=5.1k VIN-=1V, VIN+=0V, VOUT=1.5V VIN-=0V, VIN+=1V, VOUT=5V VIN-=0V, VIN+=1V, VOUT=30V VIN-=1V, VIN+=0V, ISINK4mA V/mV Unit
Saturation Voltage
Note These specifications limited -40oCTA85oC. Limits over temperature guaranteed design, tested production. Note input common mode voltage either input signal voltage should allowed negatively more than 0.3V 25oC). upper common mode voltage range VCC-1.5V 25oC), either both inputs without damages, independent magnitude VCC.
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Typical Performance Characteristics AS331
0.60
0.55
VCC=5V
VCC=30V
Supply Current (mA)
0.50 0.45 0.40 0.35 0.30 0.25 0.20
Supply Current (mA)
TC=-40
TC=25 TC=85
Supply Voltage
Case Temperature
Figure Supply Current Supply Voltage
Figure Supply Current Case Temperature
RL=5.1K VCC=5V
VCC=5V ISINK=4mA
Input Offset Voltage (mV)
Saturation Voltage (mV)
VCC=30V
Case Temperature
Case Temperature
Figure Input Offset Voltage Case Temperature
Figure Saturation Voltage Case Temperature
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Typical Performance Characteristics (Continued) AS331
VCC=5V
VCC=5V, Input Overdrive Voltage=100mV High High
TC=25
Saturation Voltage
Response Time (nS)
Output Sink Current (mA)
Case Temperature
Figure Saturation Voltage Output Sink Current
Figure Response Time Case Temperature
VCC=5V,GND=0V, RL=5.1K Input Overdrive Voltage=100mV
VCC=5V, GND=0V RL=5.1K
Response Time (nS)
Response Time (nS)
High High
High High
Load Capacitor (pF)
Input OverdrIve Voltage (mV)
Figure Response Time Load Capacitor
Figure Response Time Input Overdrive Voltage
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Typical Performance Characteristics (Continued) AS331
RL=5.1K Input Overdrive Voltage=5mV
RL=5.1K Input Overdrive Voltage=100mV
Response Time (nS)
Response Time (nS)
High High
High High
Supply Voltage
Supply Voltage
Figure Response Time Supply Voltage
Figure Response Time Supply Voltage
20mV Input
10mV
Output
100mV 20mV 10mV Input Overdrive Voltage=5mV
Output Input Overdrive Voltage=100mV VCC=5V, RL=5.1K
Input VCC=5V, RL=5.1K
Figure Response Time Positive Transition
Figure Response Time Negative Transition
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Typical Performance Characteristics (Continued) AS331
Input VCC=15V VCC=5V Output Input Overdrive Voltage=100mV
Output VCC=15V VCC=5V
Output Input
Input Overdrive Voltage=100mV
Figure Response Time Positive Transition
Figure Response Time Negative Transition
Input
Input
VCC=5V, RL=5.1K
VCC=5V, RL=5.1K
Output Input Overdrive Voltage=5mV
Output Input Overdrive Voltage=100mV
Figure 100kHz Response
Figure 100kHz Response
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Typical Performance Characteristics (Continued) AS331
Input
VCC=5V, RL=5.1K
Output Input Overdrive Voltage=100mV
Figure 500kHz Response
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Typical Application AS331
VIN+
VIN+
AS331
100K VOUT
AS331 VREF+
VOUT
VREF+
Figure Basic Comparator
Figure Driving CMOS
4.3K
100pF VIN+ AS331 VOUT
100K
75pF AS331
0.001µF
VOUT
100K
100K
100K
Figure Shot Multivibrator
Figure Squarewave Oscillator
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER OFFSET VOLTAGE SINGLE COMPARATOR Mechanical Dimensions SOT-23-5 Unit: mm(inch) AS331
2.820(0.111) 3.020(0.119)
0.100(0.004) 0.200(0.008)
2.650(0.104)
2.950(0.116)
1.500(0.059) 1.700(0.067)
0.200(0.008)
0.700(0.028)
0.950(0.037)
0.300(0.012) 0.400(0.016) 1.800(0.071) 2.000(0.079)
0.300(0.012) 0.600(0.024)
1.050(0.041)
1.250(0.049)
0.000(0.000) 0.100(0.004)
1.050(0.041) 1.150(0.045)
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE Semiconductor Manufacturing Limited reserves right make changes without further notice products specifications herein. Semiconductor Manufacturing Limited does assume responsibility products particular purpose, does Semiconductor Manufacturing Limited assume liability arising application products circuits. Semiconductor Manufacturing Limited does convey license under patent rights other rights rights others.
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