Diodes TLV431 - Manual (Page 3)

TLV431
Document number: DS32088 Rev. 6 - 2
3 of 14
www.diodes.com
October 2012
© Diodes Incorporated
TLV431
A Product Line of
Diodes Incorporated
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Units
V
REF
Reference Voltage
V
KA
= V
REF
,
T
A
= +25°C
TLV431A 1.228 1.24 1.252
V
TLV431B 1.234 1.24 1.246
TLV431T 1.2375 1.24 1.2425
V
KA
= V
REF
,
T A = 0 to +70°C
TLV431A 1.221 1.259
TLV431B 1.227 1.253
TLV431T 1.230 1.250
V
KA
= V
REF
,
T
A
= -40 to +85°C
TLV431A 1.215 1.265
TLV431B 1.224 1.259
TLV431T 1.228 1.252
V
KA
= V
REF
,
T
A
= -40 to +125°C
TLV431A 1.209 1.271
TLV431B 1.221 1.265
TLV431T 1.224 1.255
V
REF(dev)
Deviation of reference
voltage over full
temperature range
V
KA
= V
REF
T
A
= 0 to +70°C 4 12
mV T
A
= -40 to +85°C 6 20
T A = -40 to +125°C 11 31
ΔV
REF
ΔV
KA
Ratio of change in
reference voltage to the
change in cathode
voltage
V
KA
for V
REF
to
6V -1.5 -2.7
mV/V
18V -1.5 -2.7
I
REF
Reference Input Current R
1
= 10k Ω, R
2
= OC 0.15 0.5 µA
I
REF(dev)
I
REF
deviation over full
temperature range
R
1
= 10k Ω,
R
2
= OC
T
A
= 0 to +70°C 0.05 0.3
µA T
A
= -40 to +85°C 0.1 0.4
T
A
= -40 to +125°C 0.15 0.5
I
KMIN
Minimum cathode
current for regulation
V
KA
= V
REF
T
A
= 0 to +70°C 55 80
µA T
A
= -40 to +85°C 55 80
T
A
= -40 to +125°C 55 100
I
K(OFF)
Off state current V
KA
= 18V, V
REF
= 0V 0.001 0.1 µA
Z
KA
Dynamic output
impedance V
KA
= V
REF,
f = <1kHz
I
K
= 0.1 to 15mA
0.25 0.4 Ω