MAX6817 MAXIM [Maxim Integrated Products], MAX6817 Datasheet - Page 6

• Manufacturer Part Number: MAX6817
• Manufacturer: MAXIM [Maxim Integrated Products]

±15kV ESD-Protected, Single/Dual/Octal,
CMOS Switch Debouncers
Figure 6a. Human Body ESD Test Model
damage. The ESD structures withstand high ESD in all
states: normal operation, shutdown, and powered
down. After an ESD event, the MAX6816/MAX6817/
MAX6818 keep working without latchup, whereas other
solutions can latch and must be powered down to
remove latchup.
ESD protection can be tested in various ways; these
products are characterized for protection to the follow-
ing limits:
1) ±15kV using the Human Body Model
2) ±8kV using the Contact-Discharge method specified
3) ±15kV using IEC1000-4-2’s Air-Gap method.
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, test methodology, and test results.
6
Figure 6b. Human Body Current Waveform
VOLTAGE
SOURCE
AMPERES
HIGH-
in IEC1000-4-2
DC
_______________________________________________________________________________________
I
P
36.8%
100%
CHARGE-CURRENT
90%
10%
LIMIT RESISTOR
0
0
R
C
100pF
1M
t
RL
C s
STORAGE
CAPACITOR
CURRENT WAVEFORM
R
RESISTANCE
D
DISCHARGE
TIME
1500
t
DL
I r
ESD Test Conditions
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
DEVICE
UNDER
TEST
Figure 6a shows the Human Body Model and Figure 6b
shows the current waveform it generates when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of inter-
est, which is then discharged into the test device
through a 1.5kΩ resistor.
The IEC1000-4-2 standard covers ESD testing and per-
formance of finished equipment; it does not specifically
refer to integrated circuits. The MAX6816/
MAX6817/MAX6818 help you design equipment that
Figure 7a. IEC1000-4-2 ESD Test Model
Figure 7b. IEC1000-4-2 ESD Generator Current Waveform
VOLTAGE
t r = 0.7ns to 1ns
SOURCE
HIGH-
DC
CHARGE CURRENT
100%
LIMIT RESISTOR
90%
10%
R
I
C
50M to 100M
150pF
C s
30ns
STORAGE
CAPACITOR
R
RESISTANCE
DISCHARGE
D
330
60ns
Human Body Model
IEC1000-4-2
DEVICE
UNDER
TEST
t