2.5V Shunt Ref/Amplifier TO-92 SOT23 Package Preliminary Spe

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2.5V Shunt Ref/Amplifier TO-92 SOT23 Package Preliminary Spe

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AQ431R
2.5V Shunt Ref/Amplifier
TO-92 SOT23 Package
Preliminary Specification Revision June 2007
General Description
AQ431R three-terminal adjustable shunt regulator based highly stable bandgap reference excellent replacement standard TL431 references when used secondary feedback element Switch Mode Power Supplies. AQ431R meets requirements standard specifications that needed monitor secondary output voltage provide feedback signal primary through opto-coupler. offered both very popular SOT23-3 TO-92 packages.
Applications Power supply control loop voltage reference Power management applications Features Programmable precise output voltage
2.5V Wide temp range: standard Improved stability with capacitive loads voltage reference Wide range package options RoHS compliant
Configuration
Descriptions
Name CATH ANODE Function Output supply terminal, must greater than 2.5V normal operation Input, nominally 2.495V normal operation. Ground Substrate
www.acutechnology.com
AQ431R
Acutechnology Semiconductor Inc.
AQ431R
Ordering Information
Device AQ431R AQ431R Operating -40C° 85C° -40C° 85C° %Tol Type TO-92-3 TO-92-3 VOUT 2.5V 2.5V 2.5V Wrap BULK Ordering Number AQ431REX-N3-25-BUL AQ431REX-N3-25-TRL AQ431REX-M3-25-TRL
AQ431R -40C° 85C° SOT-23-3 Note: parts Lead Free RoHS compliant.
Absolute Maximum Ratings
Stress greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these conditions beyond those indicated under recommended Operating Conditions implied. Exposure "Absolute Maximum Rating" extended periods affect device reliability. standard handling precautions required.
Parameter CATH Voltage Current CATH, ANODE Currents Operating Junction Temperature Lead Temperature (soldering seconds) Storage Temperature Range Rating (HBM)
Value +150
Units
Electrical Specifications
Electrical characteristics guaranteed over full temperature range unless otherwise stated. Ambient temperature must de-rated based upon power dissipation package thermal characteristics. Symbol VREF VREF Parameter Reference Voltage VREF Temperature deviation Ratio VREF Change VCATH Change (Line Reg; 1/gain) Reference input current IREF Temperature Deviation Minimum Cathode Current Off-State Cathode Current Dynamic Output Impedance VREF=0V; VCATH=15V ICATH=0.1 100mA Conditions VREF=VCATH; ICATH =10mA ICATH=10mA, VCATH VREF ICATH=10mA 2.458 2.495 0.04 2.532 -2.7 Units mV/V
VREF VCATH
IREF IREF ICATH(min) ICATH(OFF) rCATH
www.acutechnology.com
Rev. June 2007
Acutechnology Semiconductor Inc.
AQ431R
Typical Performance Characteristics
Reference voltage Junction temperature
2.505
Reference input current (nA)
Reference input current junction temperature
Reference voltage
2.495 2.49 2.485 2.48 Junction temperature (degrees
Junction temperature (degrees
Cathode current Cathode voltage
-100 Cathode voltage
Typical Performance Characteristics (contd.)
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Cathode current (mA)
Rev. June 2007
Acutechnology Semiconductor Inc.
Off-state cathode current Junction temperature
Delta reference voltage delta cathode voltage (mV/V) Off-state cathode current (nA) Junction temperature (degrees
AQ431R
Delta Reference voltage delta cathode voltage junction temperature -0.5 -0.6 -0.7 -0.8 -0.9 -1.1 -1.2 -1.3 Junction temperature (degrees
Open loop voltage gain frequency
Open loop voltage gain (dB) 1000 10000 Frequency (KHz)
Dynamic impedance (0hms)
Dynamic impedance frequency
1000
10000
Frequency (KHz)
www.acutechnology.com
Rev. June 2007
Acutechnology Semiconductor Inc.
AQ431R
Package Dimensions SOT23-3, SOT23-4, SOT23-5, SOT23-6
www.acutechnology.com
Rev. June 2007
Acutechnology Semiconductor Inc.
AQ431R
Package Dimensions TO92-2, TO92-3
Contact Information
Acutechnology Semiconductor Inc. 3487 McKee Suite Jose 95127
Disclaimer
information furnished Acutechnology this data sheet believed accurate reliable. However, Acutechnology assumes responsibility use. Acutechnology reserves right change circuitry specifications time without notification customer.
TEL: (408) 259-2300 FAX: (408) 259-9160 website: www.acutechnology.com
Life Support Policy
Acutechnology Products designed authorized components life support devices systems where malfunction product reasonably expected result personal injury. Life support devices systems devices systems that intended surgical implant into body support sustain life, whose failure perform reasonably expected result significant injury user.
www.acutechnology.com
Rev. June 2007

2.5V Shunt Ref/Amplifier TO-92 SOT23 Package Preliminary Spe

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