TL431/TL431A Programmable Shunt Regulator
Features
・ Programmable Output Voltage to 36 Volts
・ Low Dynamic Output Impedance 0.2Ω Typical
・ Sink Current Capability of 1.0 to 100mA
・ Equivalent Full-Range Temperature Coefficient of
50ppm/°C Typical
・ Temperature Compensated For Operation Over Full Rated
Operating Temperature Range
・ Low Output Noise Voltage
・ Fast Turn-on Response
Description
The TL431/TL431A are three-terminal adjustable regulator
series with a guaranteed thermal stability over applicable
temperature ranges.
The output voltage may be set to any
value between VREF (approximately 2.5 volts) and 36 volts with two external resistors These devices have a typical
dynamic output impedance of 0.2Ω.
Active output circuitry
provides a very sharp turn-on characteristic, making these
devices excel lent replacement for zener diodes in many
applications.
TO-92
8-DIP
8-SOP
Maximum Ratings
Symbol Rating Rating Unit
V CEO Collector-Emitter Voltage 30 V
V CBO Collector-Base Voltage 40 V
V EBO Emitter-Base Voltage 5.0 V
I C Collector Current 1 A
P C Collector power dissipation 800 mW
T J Junction Temperature 150 O C
T STG Storage Temperature -55 to +150 O C
【 自作かち割り工具と、時計用こじ開け工具 】
■ 愛用のカチ割り工具。
金ノコが折れたものを流用。鋼製なのでこの用途にピッタリ。
自作方法:ダイヤモンドヤスリで先をテーパー状に削って薄くしてある。これでケースの隙間に入りやすくなる。