TA431 Datasheet, PDF (3/5 Pages) List of Unclassifed Manufacturers – ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

IN
II
I_REF
V_REF
TMC
I_I
IN
R1 _{I REF}
Iz
Iz
R2
VREF
TA431
IN
Vz
Iz OFF
Note: Vz=V^REF(1+R1/R2)+I^REF*R1
1.Test circuit for Vz=VREF 2.Test circuit for Vz>VREF 3.Test circuit for off-state
current
APPLICATION CIRCUIT
V+
Vo
V_REF ^R1
R2
Vo = ( 1+R1/R2 ) VREF
V+
30
0.01uF
R1
Vo
R2
1. Shunt Regulator
Vo = ( 1+R1/R2 ) RVEF
2. Series Regulator
V+
IN
LM7805OUT ^Vo
COMMON
R1
R2
V+
IN
Vth=2.5V
OUT
Von=2V
Voff=V+
Vo = ( 1+R1/R2
Vo_{M IN}= V_REF+ 5
)_RV_EF
V
GND
3.Output Control of a Three 4.Single Supply Comparator with
Terminal Fixed Regulator
Temperature Compensated Threshold
5.Higher Current Shunt Regulator
6.Crow Bar
3