User's Manual

LPP0108IG001 26 Version - Preliminary – 06/20/08
I = Input into Module P = Power Input to Module I/O = Input/Output to/from Module
O = Output from Module R = Power Return from Module PWR = Other Power
6.3. Circuit Protection
Other than very low level ESD protection within the module’s integrated circuits, the module does
not have any protection against ESD events or other excursions that exceed the specified
operating parameters.
Generally, ESD protection (typically TVS/Transorb devices) should be added to all signals that
leave the host board. This includes V
BAT
/V
CC
.
Series resistors (typically 47) can also be added in series with data lines to limit the peak
current during a voltage excursion.
NOTE: DO NOT ADD SERIES RESISTANCE TO THE SIM ELECTRICAL LINES.
Minimum ESD Protection Levels ESD/Input Voltage
Pin #’s ESD Test Method High/
Peak
Units
Pins 4-16, 17,
18, 19, 34, 35
Human Body Model
EIA/JEDEC22-A114-A
500 V
Charge Device Model
EIA/JEDEC22-C101-A
200 V
Pins (all
VBUS/PWR),
37, 38, 42, 43,
44, 46
Human Body Model
EIA/JEDEC22-A114-A
2000 V
Charge Device Model
EIA/JEDEC22-C101-A
500 V
RF Antenna IEC 61000-4-2 8000 V
Table 4: ESD Protection Levels
Caution – It is the Integrator’s responsibility to protect
the Enabler LPP G module from electrical disturbances
and excursions, which exceed the specified operating
parameters.