MAX13041ASD/V+ Maxim Integrated Products, MAX13041ASD/V+ Datasheet - Page 12

• Manufacturer Part Number: MAX13041ASD/V+
• Description: IC CAN TXRX +/-80V HS 14SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX13041ASD/V+

• Number Of Drivers/receivers: 1/1
• Protocol: CAN
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

±80V Fault-Protected High-Speed CAN Transceiver
with Low-Power Management and Wake-On CAN
In the lowest-power mode, the MAX13041 disables exter-
nal voltage regulators to provide a sleep mode for the
entire node. The MAX13041 restores power to the node
upon a logic transition on WAKE or detection of CAN
bus activity.
The operating mode is determined by an internal state
machine controlled by EN and STB, as well as several
internal flags (see Table 1 and Figure 4).
The MAX13041 provides full bidirectional CAN commu-
nication in normal mode. Drive TXD to transmit data on
the differential CAN bus lines CANH and CANL. The
CAN bus state is presented on RXD, a level-shifted
logic output. SPLIT is biased to V
common-mode stabilization. INH is logic-high, enabling
one or more external voltage regulators (see Table 1).
In PWON/listen-only mode, the CAN transmitter is dis-
abled. The CAN receiver remains active and the CAN
bus state is presented on RXD, a level-shifted logic out-
put. As in normal mode, SPLIT is biased to V
allow CAN bus common-mode stabilization. INH is
logic-high, enabling one or more external voltage regu-
lators (see Table 1).
Table 1. Operating Modes
Note 6: Setting the PWON or wake-up flags clears UVNOM flag.
Note 7: The MAX13041 enters sleep mode from any other mode when UVNOM is set. INH becomes high impedance.
Note 8: When go-to-sleep command mode is selected for longer than tH(MIN), the MAX13041 enters sleep mode.
Note 9: PWON and wake-up flags are cleared upon entering normal mode.
12
CONTROL PINS
STB
H
H
X
L
L
______________________________________________________________________________________
INH becomes high impedance.
EN
X
H
H
L
L
UV
CLEAR
CLEAR
CLEAR
CLEAR
CLEAR
SET
NOM
PWON/Listen-Only Mode
CLEAR
CLEAR
CLEAR
CLEAR
UV
CC
INTERNAL FLAGS
SET
X
BAT
/2 to allow CAN bus
Normal Mode
BOTH FLAGS CLEAR
BOTH FLAGS CLEAR
BOTH FLAGS CLEAR
PWON, WAKE-UP
EITHER FLAG SET
EITHER FLAG SET
EITHER FLAG SET
CC
/2 to
X
X
X
Standby mode is the first low-power operating mode.
The CAN transmitter and receiver are disabled, and a
low-power receiver is enabled to monitor the CAN bus
for activity. To reduce power consumption, common-
mode stabilization is disabled. SPLIT becomes high
impedance, and CANH and CANL are biased to
ground by the termination resistors. INH remains logic-
high, enabling one or more external voltage regulators
(see Table 1).
Go-to-sleep command mode is part of the controlled
sequence for entering sleep mode. The MAX13041
remains in go-to-sleep command mode for a hold time of
56µs (max), and subsequently enters sleep mode if no
wake events are detected. During the hold time, if the
state of EN or STB changes, or if the UV
wake-up flags are set, the go-to-sleep sequence is
aborted. During go-to-sleep command mode, functionali-
ty is the same as in standby mode.
Sleep mode is the lowest-power operating mode. The
CAN transmitter and receiver are disabled, and a low-
power receiver is enabled to monitor the CAN bus for
SLEEP (Notes 6, 7)
STANDBY
STANDBY FROM ANY OTHER MODE
STANDBY
NO CHANGE FROM SLEEP MODE
STANDBY FROM ANY OTHER MODE
STANDBY
NO CHANGE FROM SLEEP MODE
GO-TO-SLEEP COMMAND MODE FROM
ANY OTHER MODE (Note 7)
PWON/LISTEN-ONLY
NORMAL (Note 9)
OPERATING MODE
Go-to-Sleep Command Mode
Standby Mode
BAT
Sleep Mode
FLOATING
FLOATING
FLOATING
, PWON, or
INH
H
H
H
H
H
H
H
H