Details, datasheet, quote on part number: TS431BIZ
PartTS431BIZ
Category
DescriptionLow Voltage Adjustable Shunt Reference
CompanyST Microelectronics, Inc.
DatasheetDownload TS431BIZ datasheet
Cross ref.Similar parts: AP432/AP432A (Not Recommended), LM285-2.5, LM336-2.5, LM336-5.0, LM336B-2.5, LM385-ADJ, LM385B-2.5, LM4040A30, LM4040A41, LM4040B25
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Features, Applications
s LOW VOLTAGE OPERATION 2%, 1% AND 0.5% VOLTAGE PRECISION s WIDE OPERATING RANGE CATHODE

CURRENT TO 30mA LOW OUTPUT IMPEDANCE : 0.2 TYPICALLY STABLE FOR ANY CAPACITIVE LOADS ESD PROTECTION : 2kV (Human Body Model) 200V (Machine Model) 100ppm/C TEMPERATURE COEFFICIENT

DESCRIPTION The is a low voltage three terminals programmable shunt Voltage Reference. The output voltage can be set to any value between Vref (1.24V) and 6V with two external resistors. The TS431 is able to operate at a lower voltage (1.24V) and lower cathode current than the widespread TL431 and TL1431 shunt voltage reference. When driving an optocoupler, the TS431 is particularly interesting to regulate 3.3V switching power supplies. PIN CONNECTIONS (top view)

Part Number TS431AI TS431BI Temperature Range Package L SOT-23 Marking L271 L270

= TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT) and Ammo Pack (AP) LT = Tiny Package (SOT23-5) - only available in Tape & Reel (LT)

Symbol VKA Ik Iref Pd Tstd Cathode to Anode Voltage Continuous Cathode Current Range Reference Input Current Range Power Dissipation1) TO92 package SOT23-5 package Parameter Value to +150 Unit mW C

Symbol VKA Ik Toper Cathode to Anode Voltage Cathode Current Operating Free Air Temperature Range Parameter Value to +125 Unit mA C

ELECTRICAL CHARACTERISTICS Tamb = 25C (unless otherwise specified)

Ratio of Change in Reference Input Voltage to Change in Cathode to Anode Voltage Reference Input Current Reference Input Current Deviation Over Temperature Range

Minimum Cathode Current for Regulation VKA = Vref VKA 6V , Vref = 0 Off-State Cathode Current Static Impedance VKA = Vref, to 15mA

1. Limits are 100% production tested at 25C. Limits over temperature are guaranteed through correlation and by design.

2. Vref is defined as the difference between the maximum and minimum values obtained over the full temperature range. Vref = Vref max. - Vref min.



 

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