MAX7360 Maxim, MAX7360 Datasheet - Page 18

• Manufacturer Part Number: MAX7360
• Description: The MAX7360 I²C-interfaced peripheral provides microprocessors with management of up to 64 key switches, with an additional eight LED drivers/GPIOs that feature constant-current, PWM intensity control, and rotary switch control options
• Manufacturer: Maxim

I
Driver/GPIOs with Integrated ESD Protection
All of the MAX7360 pins meet the 2kV Human Body
Model ESD tolerances. Key-switch inputs and GPIOs
meet IEC 61000-4-2 ESD protection. The IEC test
stresses consist of 10 consecutive ESD discharges per
polarity, at the maximum specified level and below (per
IEC 61000-4-2). Test criteria include:
1) The powered device does not latch up during the
2) The device subsequently passes the final test used
Tables 5 and 6 are from the IEC 61000-4-2: Edition 1.1
1999-05: Electromagnetic compatibility (EMC) Testing
and measurement techniques—Electrostatic discharge
immunity test.
Table 6. ESD Waveform Parameters
18
2
LEVEL
ESD discharge event.
for prescreening.
C-Interfaced Key-Switch Controller and LED
_____________________________________________________________________________________
1
2
3
4
INDICATED
VOLTGE
(kV)
2
4
6
8
DISCHARGE ±10%
FIRST PEAK OF
CURRENT
ESD Protection
22.5
(A)
7.5
15
30
DISCHARGE SWITCH
RISE TIME (t
0.7 to 1
0.7 to 1
0.7 to 1
0.7 to 1
Table 5. ESD Test Levels
X = Open level. The level has to be specified in the dedicated
equipment specification. If higher voltages than those shown
are specified, special test equipment could be needed.
(ns)
LEVEL
X
1
2
3
4
r
) WITH
1A—CONTACT
DISCHARGE
VOLTAGE (kV)
Special
TEST
CURRENT (±30%)
2
4
6
8
AT 30ns
(A)
12
16
4
8
1B—AIR-GAP DISCHARGE
LEVEL
1
2
3
4
X
(±30%) AT 60ns
TEST VOLTAGE
CURRENT
Special
(A)
2
4
6
8
(kV)
10
2
4
8