MAX3053ESA+T Maxim Integrated Products, MAX3053ESA+T Datasheet - Page 10

• Manufacturer Part Number: MAX3053ESA+T
• Description: IC TXRX CAN 2MBPS 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3053ESA+T

• Number Of Drivers/receivers: 1/1
• Protocol: CAN
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Additionally, a current-limiting circuit protects the trans-
mitter output stage against a short circuit to positive
and negative battery voltage. Although the power dissi-
pation increases during this fault condition, this feature
prevents destruction of the transmitter output stage.
In slope control mode, the CANH, CANL outputs are
slew-rate limited, minimizing EMI and reducing reflec-
tions caused by improperly terminated cables. In gen-
eral, a transmitter’s rise time relates directly to the
±80V Fault-Protected, 2Mbps,
Low Supply Current CAN Transceiver
Figure 7. Output Bus High-Speed Mode at 2Mbps
10
Figure 5. Output Bus in Slope Control Mode at 62.5kbps
______________________________________________________________________________________
1MHz
R
RS
31.5kHz
R
RS
= 0Ω
= 180kΩ
Applications Information
Reduced EMI and Reflections
100ns
4.00µs
CANH–CANL
5V/div
FFT
200mV/div
CANH–CANL
5V/div
FFT
200mV/div
length of an unterminated stub, which can be driven
with only minor waveform reflections. The following
equation expresses this relationship conservatively:
where t
6, and 7 for typical waveforms at various data rates.
The MAX3053 requires no special layout considerations
beyond common practices. Bypass V
1µF ceramic capacitor mounted close to the IC with
short lead lengths and wide trace widths.
Figure 6. Output Bus in Slope Control Mode at 500kbps
TRANSISTOR COUNT: 1214
PROCESS: BiCMOS
RISE
250kHz
R
RS
is the transmitter’s rise time. See Figures 5,
TOP VIEW
Length = t
= 24kΩ
GND
RXD
TXD
V
CC
1
2
3
4
RISE
400ns
MAX3053
Pin Configuration
/ (10 x 1.5ns/ft)
SO
Chip Information
7
5
8
6
CC
RS
CANH
CANL
SHDN
CANH–CANL
5V/div
FFT
200mV/div
to GND with a