MAX13020_12 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – ±60V Fault-Protected LIN Transceivers

MAX13020/MAX13021
±60V Fault-Protected LIN Transceivers
General Description
The MAX13020/MAX13021 ±60V fault-protected low-
power local interconnect network (LIN) transceivers are
ideal for use in automotive network applications where
high reliability is required. The devices provide the
interface between the LIN master/slave protocol con-
troller, and the physical bus described in the LIN 2.0
specification package and SAE J2602 specification.
The devices are intended for in-vehicle subnetworks
with a single master and multiple slaves.
The extended fault-protected voltage range of ±60V on
the LIN bus line allows for use in +12V, +24V, and
+42V automotive applications. The devices allow com-
munication up to 20kbaud, and include slew-rate limit-
ed transmitters for enhanced electromagnetic
emissions (EME) performance. The devices feature a
low-power 4µA sleep mode and provide wake-up
source detection.
The MAX13020 is a pin-to-pin replacement and is func-
tionally compatible with the Philips TJA1020. The
MAX13021 includes enhanced bus dominant clamping
fault management for reduced quiescent current during
LIN bus shorts to GND. The MAX13020/MAX13021 are
available in the 8-pin SO package, and operate over
the -40°C to +125°C automotive temperature range.
Applications
+12V/+42V Automotive
+24V Heavy Truck and Bus
Features
o MAX13020 is a Pin-to-Pin Upgrade for TJA1020
o ESD Protection
±12kV Human Body Model (LIN)
±4kV Contact Discharge (LIN, NWAKE, BAT)
o LIN 2.0/SAE J2602 Compatible
o Slew-Rate Limited Transmitter for Low
Electromagnetic Emissions (EME)
o Robust Electromagnetic Immunity (EMI)
o Passive Behavior in Unpowered State
o TXD Dominant Timeout Function
o LIN Bus Dominant Management (MAX13021 Only)
o Input Levels Compatible with +3.3V and +5V
Controllers
o Integrated 30kΩ Termination Resistor for Slave
Applications
o Low 4µA Sleep Mode with Local and Remote
Wake-Up Detection
o Wake-Up Source Recognition
o Thermal Shutdown
Ordering Information
PART
LIN BUS DOMINANT
M A N A G EM EN T
PIN-PACKAGE
MAX13020ASA+
—
8 SO
MAX13021ASA+
Yes
8 SO
MAX13021ASA+/V+
Yes
8 SO
Note: All devices are specified over the -40°C to +125°C auto-
motive temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
VBAT
MAX5023
+5V LDO
EN
MICROCONTROLLER
*
INH
BAT _NWAKE
MAX13020
MAX13021
TXD
RXD
NSLP
LIN
GND
Typical Operating Circuit
LIN
BUS
MASTER NODE
ONLY
1kΩ
*OPTIONAL TXD PULLUP RESISTOR FOR READING WAKE-UP SOURCE FLAG
Pin Configuration appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-0559; Rev 2; 10/12