用于穩壓電源,運放電路,數字表,充電器

規格如下:

programmable precision reference
features
*programmable output voltage to 36v
*low dynamic output impedance 0.2ohm
*sink current capability of 1.0 to 100ma
*equivalent full-range temperature coefficient of 50ppm/℃
typical for operation over full rated operating temperature range
applications
*shunt regulator,series regulator,switching regulator,
voltage reference and others.
absolute maximum ratings at tamb=250c
symbol rating unit
vka 37 v pin:
cathode current range(continuous) ika -100～+150 ma style
reference input current range iref -0.05～+10 ma
operating junction temperature tj 150 ℃
topr 0～+70 ℃
tstg -65~150 ℃
recommended operating conditions
symbol min typ max unit
cathode voltage vka vref 36 v
cathode current ika 1 100 ma
electrical characteristics at tamb=250c
symbol min typ max unit
2.483 2.495 2.507 v
tl431 1% 2.47 2.495 2.52 v
tl431 2% 2.44 2.495 2.55 v
⊿vref /
⊿t
4.5 17 mv
⊿vref /
⊿vka
-1 -2.7 mv/v
⊿vref /
⊿vka
-0.5 -2 mv/v
iref 1.5 4 ua
⊿iref /
⊿t
0.4 1.2 ua
ika(min) 0.45 1 ma
ika(off) 0.05 1.0 ua
dynamic impedance zka 0.15 0.5 ohm
test conditions
reference input voltage tl431 0.5%
deviation of reference input current over
full temperature range
off-state cathode current vka=36v,vref=0
vref vka=vref,ika=10ma
tl431
1 2 3
no.1 r a k
package: to-92
linear integrated circuit
characteristic
characteristic
reference input current
vka=vref,ika=1 to
100ma,f=1.0khz
characteristic
cathode voltage
ratio of change in reference input voltage
to the change in cathode voltage
ika=10ma,⊿vka=36v～10v
storage temperature
operating ambient temperature
vka=vref
vka=vref,ika=10ma;0℃≦t
a≦70℃
ratio of change in reference input voltage
to the change in cathode voltage
ika=10ma,⊿vka=10v～vref
ika=10ma,r1=10kohm,r2=∞
ika=10ma,r1=10kohm,r2=
∞,ta=full temperature