E910.54B37AB ELMOS Semiconductor, E910.54B37AB Datasheet - Page 9

• Manufacturer Part Number: E910.54B37AB
• Description: Interface - Specialized FlexRay Transceiver
• Manufacturer: ELMOS Semiconductor

Specifications of E910.54B37AB

• Rohs: yes
• Product Type: FlexRay Transceiver
• Operating Supply Voltage: 5 V
• Supply Current: 50 mA
• Maximum Power Dissipation: 150 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-14
• Minimum Operating Temperature: - 40 C

3.5 Failure detection characteristics
4 Functional description
4.1 FlexRay bus driver in different FlexRay configurations
4.1.1 FlexRay network topologies
The simplest configuration is the point-to-point connection using two transceivers (half-duplex transmission). The
load resistance for each line driver is the half of the termination resistor parallel to the differential input resist-
ances of the receivers.
Figure 2: Bus drivers in a point-to-point connection
Normally, there are more than two nodes in a network. The best tradeoff between costs and performance is
shown Fig. 3. Both ends of the cable are terminated (connected to Node1 and Node 2). All transceivers connected
to other nodes are unterminated. The maximum number of stub nodes in a FlexRay passive bus is 22. If the dis-
tance between the stub splices is nearly zero, a passive star network emerges from the passive bus.
ELMOS Semiconductor AG
no.
1
2
3
4
5
6
7
Undervoltage
threshold VCC
Undervoltage
threshold VIO
Overtemperature
Thresholds of
RLOAD for under-
load detection,
including lost bus,
lost RT
Thresholds of
RLOAD for over-
load detection,
including shortcut
BP-BM
Timeout of a per-
manent low of
TxEN
Undervoltage VCC
reaction time
Parameter
Node 1
condition
Bus driver
TERM
VCCOK_N
VIOOK_N
Data sheet
dTOTxEN
ROLOAD
RULOAD
symbol
dUVCC
TOVER
9/28
TERM
Min
140
4.3
2.4
5.4
56
10
Node 2
QM-No.: 25DS0004.00 2010-02-03
0.12
typ
7.7
Max
150
170
4.7
2.7
39
10
1
E910.54
Unit
ms
ms
°C
Ω
Ω
V
V