ZHT431_06 ZETEX [Zetex Semiconductors], ZHT431_06 Datasheet - Page 7

• Manufacturer Part Number: ZHT431_06
• Description: Adjustable precision Zener shunt regulator
• Manufacturer: ZETEX [Zetex Semiconductors]

Application circuits
Issue 5 - October 2006
© Zetex Semiconductors plc 2006
three terminal fixed regulator
Single supply comparator
V+Vout
Input
compensated threshold
+
V
Vref
Vout
TH
Output control of a
Vout=
with temperature
= 2.5V
In
MIN
Vout=
Shunt regulator
ZSR***
R1
R2
= Vref + Vreg
1 +
Common
1 +
V+
R1
R2
R1
R2
Out
Vref
V
V
Vref
on
off
= V+
Output
Vref
R1
R2
Vout
2V
V+
R1A
Vref
R2A
Over voltage / under voltage
V+
7
Higher current shunt regulator
V+Vout
Low limit =
High limit = 1 +
Vref
protection circuit
Vref
Series regulator
Vout=
R1B
R2B
0.01µF
1 +
30
Vout=
R1
R2
R1B
R2B
R1A
R2A
R2
1 +
R1
1 +
R1
R2
Vref
Vref
R1
R2
Vref
Vref
Vref
Vout
Output
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ZHT431