Specifications

Motor Control
High-accuracy motor control with encoder data interfaces
www.digikey.com/maxim-industrial 107
Benefits
• Integrated fault protection to ±80V
DC
allows smaller encoder designs
– Saves board space and cost of discrete
protection circuitry
– High-speed RS-485 requirements are
met despite fault protection
– Reduces field returns due to
misconnection
• Multiple configurations increase design
flexibility
– 3.3V/5V versions allow modern
low-voltage supplies
– Full- and half-duplex operation covers
all encoder needs
– 250kbps and 10Mbps versions support
modern encoder speed requirements
• ESD protection up to ±15kV (HBM)
reduces cost and size
– Reduces the need for external ESD
protection
MAX13448E, MAX3440E–MAX3444E,
MAX13442E/MAX13443E/MAX13444E, MAX3430
In applications where power and data are distributed over the same
cable, there is a potential for miswiring, cable shorts, or surges on
the communication bus. Maxim’s fault-protected RS-485 MAX13448E,
MAX3440E, MAX13442E, and MAX3430 transceiver families offer fault
protection up to ±80V
DC
.
Make equipment more robust with fault-protected RS-485 transceivers
Maxim’s RS-485 family offers high levels of integration which saves board space and cost.
DI
DE
Y
Z
A
B
POLYSWITCH
LIMITERS
ZENERS
Reduces
external components,
saves up to 25%
board space
D
DI
RO
DE
Y
Z
N.C.
R
A
GND
B
V
CC
MAX13448E
DI
RE
RE
Part V
CC
Supply (V) Configuration Fault Protection (V)
MAX13448E 3.3 to 5 Full ±80
MAX3440E–MAX3444E 5 Half ±60
MAX13442E–MAX13444E 5 Half ±80
MAX3430 3.3 Half ±80