ZR431F01 ZETEX [Zetex Semiconductors], ZR431F01 Datasheet - Page 6

• Manufacturer Part Number: ZR431F01
• Description: ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
• Manufacturer: ZETEX [Zetex Semiconductors]

Input
NOTES
Deviation of reference input voltage, V
input voltage over the full temperature range.
The average temperature coefficient of the reference input voltage, V
DC TEST CIRCUITS
Vmin
Vmax
Fig 1 – Test Circuit for V
ZR431
Vdev = Vmax - Vmin
I
L
z
=V
ref
Fig 2 – Test Circuit for V
V
The dynamic output impedance, Rz, is defined as:
When the device is programmed with two external
resistors, R1
impedance of the overall circuit, R’, is defined as:
dev,
ref

is defined as the maximum variation of the reference
p pm
4-194

°C
78
 
V
R
R’
and R2, (fig 2) , the dynamic
dev
V
Z

ref

R
z
>V
x 1000000
z




T 1
V
I
ref
1
Z
Z

R1
R2
T 2


Input
Fig 3 – Test Circuit for Off
ref
is defined as:
State current
output
I
zoff
V
Z