LM4040
www.ti.com
..................................................................................................................................................
SLOS456K – JANUARY 2005 – REVISED MARCH 2008
LM4040x20I Electrical Characteristics
at industrial temperature range, full-range T
A
= –40°C to 85°C (unless otherwise noted)
PARAMETER
V
Z
ΔV
Z
I
Z,min
Reverse breakdown voltage
Reverse breakdown voltage
tolerance
Minimum cathode current
I
Z
= 10 mA
α
VZ
Average temperature coefficient
I
Z
= 1 mA
of reverse breakdown voltage
I
Z
= 100
μA
DV
Z
DI
Z
TEST CONDITIONS
I
Z
= 100
μA
I
Z
= 100
μA
T
A
25°C
25°C
Full range
25°C
Full range
25°C
25°C
Full range
25°C
25°C
Full range
25°C
Full range
25°C
25°C
LM4040C20I
MIN
–10
–23
45
±20
±15
±100
±15
0.3
2.5
0.8
1
6
8
0.3
35
120
0.08
0.9
TYP
2.048
10
23
75
80
MAX
LM4040D20I
MIN
–20
–40
45
±20
±15
±150
±15
0.3
2.5
1
1.2
8
10
0.3
35
120
0.08
1.1
TYP
2.048
20
40
75
80
MAX
UNIT
V
mV
μA
ppm/°C
Reverse breakdown voltage
change with cathode current
change
I
Z,min
< I
Z
< 1 mA
1 mA < I
Z
< 15 mA
I
Z
= 1 mA, f = 120 Hz,
I
AC
= 0.1 I
Z
I
Z
= 100
μA,
10 Hz
≤
f
≤
10 kHz
t = 1000 h,
T
A
= 25°C ± 0.1°C,
I
Z
= 100
μA
ΔT
A
= –40°C to 125°C
mV
Z
Z
e
N
Reverse dynamic impedance
Wideband noise
Long-term stability of reverse
breakdown voltage
Ω
μV
RMS
ppm
%
V
HYST
(1)
Thermal hysteresis
(1)
Thermal hysteresis is defined as V
Z,25°C
(after cycling to –40°C) – V
Z,25°C
(after cycling to 125°C).
Copyright © 2005–2008, Texas Instruments Incorporated
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