Diodes ZR431L - Manual (Page 4)

ZR431L
Issue 3 - April 2008 4 www.zetex.com
© Zetex Semiconductors plc 2008
Electrical characteristics (at T
amb
= 25°C unless otherwise stated)
DC Test circuits
Parameter Symbol Min. Typ. Max. Unit Conditions
Reference Voltage 2.5%
1.0% V
ref
V
ref
1.209
1.228 1.24
1.24 1.271
1.252 V
V I
L
= 10mA (Fig1), V
Z
= V
ref
Deviation of Reference
Input Voltage over
Temperature V
dev
4.0 8.0 mV I
L
= 10mA, V
Z
= V
ref
T
a
= full range (Fig 1)
Ratio of the change in
Reference Voltage to the
change in Cathode
Voltage) 0.5 2.0 mV/V V
Z
from V
ref
to 10V
I
Z
= 10mA (Fig2)
Reference Input Current I
ref
0.02 0.11 0.4 ␮A R1 = 10k, R2 = O/C,
l
L
= 10mA (fig2)
Deviation of Reference
Input Current over
Temperature
⌬I
ref
0.02 0.2
␮A
R1 = 10k, R2 = O/C,
I
L
= 10mA T
a
= full
range (Fig2)
Minimum Cathode
Current for Regulation I
Zmin
30 100
␮A
Off-state Current I
Zoff
10 30
␮A
V
Z
= 10V, V
ref
= 0V
(Fig3)
Dynamic Output
Impedance R
Z
0.25 2
Ω
V
Z
= V
ref
(Fig1), f = 0Hz,
I
L
= 10mA
Fig 1 - Test Circuit for V
Z
= V
ref
Fig 2 - Test Circuit for V
Z
> V
ref
Fig 3 - Test Circuit for Off State
current
Z
ref
V
V
Δ
Δ