Chip information – Rainbow Electronics MAX14770E User Manual
Page 15
High-ESD Profibus RS-485 Transceiver
MAX14770E
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15
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2009 Maxim Integrated Products
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ESD test model (Figure 15), the ESD-withstand voltage
measured to this standard is generally lower than that
measured using the HBM. Figure 16 shows the current
waveform for the Q10kV IEC 61000-4-2 Level 4 ESD
Contact Discharge test. The Air-Gap Discharge test
involves approaching the device with a charged probe.
The Contact Discharge method connects the probe to
the device before the probe is energized.
Chip Information
PROCESS: BiCMOS
Figure
15. IEC61000-4-2 ESD Test Model
Figure
16. IEC61000-4-2 ESD Generator Current Waveform
Typical PROFIBUS-DP Operating Circuit
Package Information
For the latest package outline information and land patterns,
go to
www.maxim-ic.com/packages
. Note that a “+,” “#,” or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
C
S
150pF
R
C
50MI TO 100MI
R
D
330I
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
60ns
30ns
t
R
= 0.7ns
TO 1ns
t
10%
90%
I
PEAK
100%
V
CC
GND
GND
DI
DE
RE
RO
220I
390I
390I
A
D
R
SHUTDOWN
B
MAX14770E
0.1FF
0.1FF
V
CC
DI
DE
RO
220I
390I
390I
A
D
R
SHUTDOWN
B
RE
MAX14770E
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
8 SO
S8+4
8 TDFN-EP
T833+2