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TL431_05 Datasheet, PDF (1/61 Pages) Unisonic Technologies – PROGRAMMABLE PRECISION REFERENCE
D Operation From −40°C to 125°C
D Reference Voltage Tolerance at 25°C
− 0.5% . . . B Grade
− 1% . . . A Grade
− 2% . . . Standard Grade
D Typical Temperature Drift (TL431B)
− 6 mV (C Temp)
− 14 mV (I Temp, Q Temp)
TL431, TL431A, TL431B . . . D (SOIC) PACKAGE
(TOP VIEW)
CATHODE 1
ANODE 2
ANODE 3
NC 4
8 REF
7 ANODE
6 ANODE
5 NC
NC − No internal connection
TL431, TL431A, TL431B . . . PK (SOT-89) PACKAGE
(TOP VIEW)
CATHODE
ANODE
REF
TL431, TL431A, TL431B
TL432, TL432A, TL432B
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005
D Low Output Noise
D 0.2-Ω Typical Output Impedance
D Sink-Current Capability . . . 1 mA to 100 mA
D Adjustable Output Voltage . . . Vref to 36 V
TL431, TL431A, TL431B . . . P (PDIP), PS (SOP),
OR PW (TSSOP) PACKAGE
(TOP VIEW)
CATHODE 1
NC 2
NC 3
NC 4
8 REF
7 NC
6 ANODE
5 NC
NC − No internal connection
TL432, TL432A, TL432B . . . PK (SOT-89) PACKAGE
(TOP VIEW)
REF
ANODE
CATHODE
TL431, TL431A, TL431B . . . DBV (SOT-23-5) PACKAGE
(TOP VIEW)
NC 1
†2
CATHODE 3
5 ANODE
4 REF
NC − No internal connection
† Pin 2 is attached to Substrate and must be
connected to ANODE or left open.
TL431, TL431A, TL431B . . . DBZ (SOT-23-3) PACKAGE
(TOP VIEW)
CATHODE 1
REF 2
3 ANODE
TL432, TL432A, TL432B . . . DBV (SOT-23-5) PACKAGE
(TOP VIEW)
NC 1
ANODE 2
NC 3
5 REF
4 CATHODE
NC − No internal connection
TL432, TL432A, TL432B . . . DBZ (SOT-23-3) PACKAGE
(TOP VIEW)
REF 1
CATHODE 2
3 ANODE
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerFLEX is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2005, Texas Instruments Incorporated
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