View TL431L-AB3-6-R_749269.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

UNISONIC TECHNOLOGIES CO., LTD TL431L
PROGRAMMABLE PRECISION REFERENCE
DESCRIPTION
The UTC TL431L is a three-terminal adjustable regulator with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between VREF (approximately 2.5V) and 20V with two external resistors. It provides very wide applications, including shunt regulator, series regulator, switching regulator, voltage reference and others.
LINEAR INTEGRATED CIRCUIT
FEATURES
*Programmable output Voltage to 20V. *Low dynamic output impedance 0.2. *Sink current capability of 1.0 ~ 100mA. *Equivalent full-range temperature coefficient of 50ppm/ C typical for operation over full rated operating temperature range. *Pb-free plating product number: TL431LK
ORDERING INFORMATION
Order Number Pin Assignment Package Normal Lead Free Plating 12345678 TL431L-AB3-6-R TL431LK-AB3-6-R RAK- - - - SOT-89 TL431L-AE3-3-R TL431LK-AE3-3-R KRA- - - - SOT-23 TL431L-AF5-0-R TL431LK-AF5-0-R XXKRA- - SOT-25 TL431L-S08-0-R TL431LK-S08-0-R KAAXXAAR SOP-8 TL431L-S08-0-T TL431LK-S08-0-T KAAXXAAR SOP-8 TL431L-SM1-0-R TL431LK-SM1-0-R KXXXXAXR MSOP-8 TL431L-SM1-0-T TL431LK-SM1-0-T KXXXXAXR MSOP-8 TL431L-T92-6-B TL431LK-T92-6-B RAK- - - - TO-92 TL431L-T92-6-K TL431LK-T92-6-K RAK- - - - TO-92 TL431L-T92-6-R TL431LK-T92-6-R RAK- - - - TO-92 Note: Pin Code: K: Cathode A: Anode R: Reference X: No Connection Packing Tape Reel Tape Reel Tape Reel Tape Reel Tube Tape Reel Tube Tape Box Bulk Tape Reel
www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd
1 of 5
QW-R103-014,E
TL431L
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 5
QW-R103-014,E
TL431L
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
PARAMETER SYMBOL RATINGS UNIT Cathode Voltage VKA 20 V Cathode Current Range (Continuous) IKA -100 ~ +150 mA Reference Input Current Range IREF -0.05 ~ +10 mA Operating Junction Temperature TJ 150 C Operating Ambient Temperature TOPR 0 ~ +70 C Storage Temperature TSTG -65 ~ +150 C Note Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER Cathode Voltage Cathode Current SYMBOL VKA IKA MIN VREF 1 TYP MAX 20 100 UNIT V mA
ELECTRICAL CHARACTERISTICS (Ta=25C, unless otherwise specified)
PARAMETER SYMBOL Reference Input Voltage VREF Deviation of Reference Input Voltage VREF/T Over temperature (note 1) Ratio of Change in Reference Input Voltage to the Change in Cathode VREF /VKA Voltage Reference Input Current IREF Deviation of Reference Input Current IREF/T Over Full Temperature Range Minimum Cathode Current for Regulation IKA(MIN) Off-State Cathode Current IKA(OFF) TEST CONDITIONS VKA=VREF, IKA=10mA VKA=VREF, IKA=10mA 0TA70 IKA=10mA VKA=10V~VREF VKA=20V~10V MIN 2.450 TYP 2.50 4.5 -1.0 -0.5 1.5 0.4 0.45 0.05 0.15 MAX 2.550 17 -2.7 -2.0 4 1.2 1.0 1.0 0.5 UNIT V mV mV/V A A mA A
IKA=10mA, R1=10k, R2= IKA=10mA, R1=10k, R2= TA=full Temperature VKA=VREF VKA=20V, VREF=0 VKA=VREF, IKA=1 ~ 100mA Dynamic Impedance ZKA f1.0kHz Remark: Reference voltage of 1% tolerance is also available per customer's request.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 5
QW-R103-014,E
TL431L
TYPICAL CHARACTERISTICS
Cathode Current vs. Cathode Voltage
125 Ta=25 VKA=VREF
LINEAR INTEGRATED CIRCUIT
800
Cathode Current vs. Cathode Voltage
Ta=25 VKA=VREF
Cathode Current (mA)
100 75 50 25 0 -25 -50 -75 -100 -2
600
Cathode Current (mA)
400 IKA(min) 200
0
-200 -1 0 1 2 3 -2 -1 0 1 2 3
Cathode Voltage (V)
Cathode Voltage (V)
0 -5 -10 -15 -20 -25 -30 -35 -40 0
Change in Reference Input Voltage vs. Cathode voltage
7 Ta=25
Pulse Response
Input and Output Voltage (V)
IKA=100mA Ta=25 5 10 15 20 25 30 35 40
Change In Reference INput Voltage (mV)
6 5 4 3 2 1 0 0 1 2 3 4 5 6 7
Cathode Voltage (V)
Time (s)
Dynamic Impedance vs. Frequency
10
2
Small Signal Voltage Amplification vs. Frequency
70
Ta=25 IKA=0mA ~ 100mA Impedance ()
10
1
60 50 40 30 20 10 0 Ta=25 IKA=10mA 10
4
10
0
10
-1
Voltage Amplification (dB)
3 4 5 6 7
10
10
10
10
10
-10 3 10
10
5
10
6
10
7
Frequency (Hz)
Frequency (Hz)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R103-014,E
TL431L
TEST CIRCUIT
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
VIN
IOUT
VOUT
VIN
IOUT
RCL
VOUT
Rs
Rs UTC TL431L IOUT=VREF/RS UTC TL431L RS=VREF/RCL
Constant-Current Sink
Current Limiting or Current Source
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 5
QW-R103-014,E

▲Up To Search▲

Price & Availability of TL431L-AB3-6-R

	To Download TL431L-AB3-6-R Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .