CANifier
User’s
Guide www.ctr-electronics.com 10/8/2017
Cross The Road Electronics Page 7 10/8/2017
1.3. Electrical Specifications
Note 1:
A silkscreen error implies a maximum VDD of 33V. The real maximum VDD is 28V. VDD limits are for guaranteeing full functionality.
Note 2:
See
Section 1.3.1
(Figure 1.1. 5V rail dropout)
Note 3:
See
Section 1.3.1
(Figure 1.2. 3.3V rail dropout)
Note 4:
See schematic for information on series resistors
Note 5:
This will be configurable in future updates.
Note 6:
All pins have TVS diodes for ESD protection
except
for LIMR.
1.3.1. Voltage Rail Dropout Plots.
Symbol
Parameter
Condition
Min
Typ
Max
Unit
T
amb
Ambient temperature
-40
+125
°C
V
dd
Supply voltage
7
28
(1)
V
I
supp
Supply Current
7.0V < V
dd
< 28.0V
12
24
mA
V
drop_5V
5V rail dropout voltage
At V
dd
6.5
(2)
V
V
drop_3.3V
3.3V rail dropout voltage
At V
dd
3.9
(3)
V
V
drop_CAN
CAN dropout voltage
At V
dd
5.2
V
I
max_5V
Max continuous 5V current draw
500
mA
I
max_3.3V
Max continuous 3.3V current draw
100
mA
I
max_ABC
Max sink current per LED channel
3.5
A
GPIO Specs
V
oL
Low level output voltage
GND+0.4
V
V
oH
High level output voltage
2.8
3.3
V
I
o
Source/Sink current per output pin
3
mA
R
GPIO
GPIO series resistance
(4)
22
Ω
V
iL
Low level input voltage
-0.3
0.2
V
V
iH
High level input voltage
2.7
5.5
V
f
PWM_ABC
A, B, and C PWM switching frequency
1
kHz
f
PWM_OUT_0123
PWM 0-3 Period
(5)
As output
4.2
ms
f
PWM_IN_0123
Pulse Width Measurement Accuracy
As inputs
250
ns
Default internal pull mode
As inputs
Pullup
ESD Rating
ESD Protection Contact Discharge
(6)
±8
kV
ESD Protection Air-Gap Discharge
(6)
±8
kV
Figure 1.1.
5V
rail dropout voltage
Figure 1.2.
3.3V
rail dropout voltage
