MAX3054ASD Maxim Integrated Products, MAX3054ASD Datasheet - Page 12

• Manufacturer Part Number: MAX3054ASD
• Description: Network Controller & Processor ICs +/-80V, 250kbps Faul t-Protected - Fault
• Manufacturer: Maxim Integrated Products

Specifications of MAX3054ASD

• Product: Controller Area Network (CAN)
• Number Of Transceivers: 1
• Data Rate: 250 Kbps
• Supply Voltage (max): 5.25 V, 42 V
• Supply Voltage (min): 4.75 V, 5 V
• Supply Current (max): 0.125 mA, 30 mA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-14

Inhibit is an output that allows for the control of an exter-
nal voltage regulator. On a wake-up request or power-up
on BATT, the transceiver sets the output INH high. This
feature enables the external voltage regulator to be shut
down during sleep mode to reduce power consumption.
INH is floating while entering the sleep mode and stays
floating during the sleep mode. If INH is left floating, it is
not set to a high level again until the following events
occur:
• Power-on (V
• Rising or falling edge on WAKE
• Dominant signal longer than 38µs during EN or STB
The signals on STB and EN are internally set to a low
level when V
providing fail-safe functionality.
After power-on (V
becomes HIGH and an internal power-on flag is set.
This flag can be read in the power-on standby mode
through ERR (STB = 1, EN = 0) and is reset by entering
the normal operating mode.
±80V Fault-Protected/Tolerant CAN
Transceivers for In-Car Applications
Figure 5. Block Diagram
12
at low level
______________________________________________________________________________________
WAKE
RXD
STB
TXD
ERR
INH
EN
CC
1
7
5
6
2
4
3
BATT
is below a certain threshold voltage
BATT
4ms
switching on at cold start)
switched on) the signal on INH
CONTROLLER
WAKE-UP
STANDBY
FAULT DETECTION
BATT
SHUTDOWN
THERMAL
DRIVER
RECEIVER
INH
ERR is a wake-up and power-on indicator, as well as an
error detector. Upon power-up, wake-up, or when a
bus failure is detected, the output signal on ERR
becomes LOW. Upon error recovery, the output signal
on ERR is set HIGH.
STB is the standby digital control signal into the logic
controller. This is an active-low input that is used with
EN to define the status of the transceiver in normal and
low-power modes.
EN is the enable digital control signal into the logic con-
troller used in conjunction with STB to define the status
of the transceiver in normal and low-power modes.
WAKE is an input to the logic controller within the
device to signal a wake-up condition. If WAKE receives
a positive or negative pulse for a period longer than
t
WAKE
, wake-up occurs.
GND
IPD
MAX305_
10
11
12
9
8
V
RTL
CANH
CANL
RTH
CC
W W A A K K E E
E E R R R R
S S T T B B
EN