E520.35B62AC ELMOS Semiconductor, E520.35B62AC Datasheet - Page 16

• Manufacturer Part Number: E520.35B62AC
• Description: LIN Transceivers LIN SBC with VR & Watchdog
• Manufacturer: ELMOS Semiconductor

Specifications of E520.35B62AC

• Rohs: yes
• Operating Supply Voltage: 5 V
• Supply Current: 10 mA
• Maximum Operating Temperature: + 125 C
• Package / Case: QFN-20
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT

LIN SBC with Voltage Regulator and Watchdog
ADVANCE PRODUCT INFORMATION JUL 26, 2011
6.1.3
In Active mode the device is able to transmit and receive data via the LIN bus line. The receiver
transfers the detected LIN bus data via pin RXD to the microcontroller: HIGH at a recessive level and
LOW at a dominant level on the bus. The receiver has a debounced VS supply related threshold with
hysteresis. The transmit data at the TXD input is converted by the transmitter into a LIN bus signal. The
LIN bus slew rate is optimized to minimize EME. The LIN bus output pin is pulled HIGH via an internal
slave termination resistor. For a master application an external termination is needed.
The device enters active mode from:
6.1.4
In standby mode the voltage regulator is activated. Also the slave termination resistor at pin LIN is
enabled. The watch dog is switched off.
Any wake-up request is indicated by setting the pin RXD to LOW level.
The wake-up source can be recognized by the microcontroller by reading the level at pin TXD. A weak
pull up indicates a remote wake-up request and strong pull down indicates a local wake-up request.
6.1.5
The sleep mode is a very low power mode of the device. After entering standby mode a TXD LOW level
for at least t
independently from the actual level on pin LIN or pin WAKE_N. In Sleep mode the voltage regulator is
deactivated and becomes high omic after a delayed time of t
The transition into mode sleep is prohibited if a wake-up request is pending. The request must be
cleared via a transition to mode Active.
In sleep mode the internal slave resistor termination at LIN bus pin is switched off. A power-saving weak
pull-up between pins LIN and VS is still present.
The device can be woken up remotely via pin LIN or locally via pin WAKE_N. Debounce filters prevent
unwanted wake-up events due to EMI at the inputs of the wake-up sources.
6.1.6
The flash mode allows a higher transmit baud rate up to 115 kBds and the receive baud rate up to 250
kBds. For further information see chapter „LIN flash mode“.
ELMOS Semiconductor AG
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Active mode
Standby mode
Sleep mode
Flash mode
2SLEEP
standby mode or power-up mode whenever a HIGH level on pin EN is maintained for a
time of at least t
flash mode after a time out of t
active mode in case of a LOW-level on pin EN, maintained for a time of at least t
will result in entering sleep mode. The transition to sleep mode can be performed
2AM
Data Sheet 16 / 29
FMTO
DD,OFFDEL
.
QM-No.: 25DS0060E.00
E520.35
2STBY
.