Si4421
GENERAL DEVICE SPECIFICATIONS
All voltages are referenced to V
ss
, the potential on the ground reference pin VSS.
Absolute Maximum Ratings (non-operating)
Symbol
Parameter
Min
Max
Units
V
dd
Positive supply voltage
-0.5
6
V
V
in
Voltage on any pin (except RF1 and RF2)
-0.5
V
dd
+0.5 V
V
oc
Voltage on open collector outputs (RF1, RF2)
-0.5
V
dd
+1.5 (Note 1)
V
I
in
Input current into any pin except VDD and VSS
-25
25
mA
ESD
Electrostatic discharge with human body model
1000
V
T
st
Storage temperature
-55
125
o
C
T
ld
Lead temperature (soldering, max 10 s)
260
o
C
Recommended Operating Range
Symbol
Parameter
Min
Max
Units
V
dd
Positive supply voltage
2.2
3.8
V
V
oc
Voltage range on open collector outputs (RF1, RF2)
V
dd
-1.5 (Note 2)
V
dd
+1.5 V
T
op
Ambient operating temperature
-40
85
o
C
Note 1: The voltage on RF1 and RF2 pins can be higher than the actual V
dd
but cannot exceed 7 V.
Note 2: The actual voltage on RF1 and RF2 pins can be lower than the current V
dd
but never should go below 1.2 V.
8
