器件名称: TL1431CD
功能描述: PRECISION PROGRAMMABLE REFERENCE
文件大小: 603.16KB 共26页
简 介:www.ti.com
TL1431 PRECISION PROGRAMMABLE REFERENCE
SLVS062L – DECEMBER 1991 – REVISED OCTOBER 2007
1
FEATURES
Sink Current Capability…1 mA to 100 mA Low Reference Current (REF) Adjustable Output Voltage…VI(ref) to 36 V
0.4% Initial Voltage Tolerance 0.2- Typical Output Impedance Fast Turnon…500 ns
2
D PACKAGE (TOP VIEW)
JG OR PW PACKAGE (TOP VIEW)
3 4
6 5
3 4
6 5
NC – No internal connection ANODE terminals are connected internally .
NC – No internal connection
KTP PACKAGE (TOP VIEW)
LP PACKAGE (TOP VIEW)
NC NC NC NC NC
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
NC CATHODE NC REF NC
CATHODE ANODE ANODE NC
1 2
8 7
REF ANODE ANODE NC
CATHODE NC NC NC
1 2
8 7
REF NC ANODE NC
FK PACKAGE (TOP VIEW)
NC NC NC ANODE NC
ANODE
CATHODE ANODE REF
CATHODE ANODE REF
DESCRIPTION/ORDERING INFORMATION
The TL1431 is a precision programmable reference with specified thermal stability over automotive, commercial, and military temperature ranges. The output voltage can be set to any value between VI(ref) (approximately 2.5 V) and 36 V with two external resistors (see Figure 16). This device has a typical output impedance of 0.2 . Active output circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener diodes and other types of references in applications such as onboard regulation, adjustable power supplies, and switching power supplies. The TL1431C is characterized for operation over the commercial tempe……
