E981.12A39BB ELMOS Semiconductor, E981.12A39BB Datasheet - Page 17

• Manufacturer Part Number: E981.12A39BB
• Description: Interface - Specialized Dual I/O Link Master Transciever
• Manufacturer: ELMOS Semiconductor

Specifications of E981.12A39BB

• Rohs: yes
• Product Type: Dual I/O link Master Transceiver
• Operating Supply Voltage: 3.3 V
• Supply Current: 5.5 mA
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-44
• Minimum Operating Temperature: - 40 C

Dual IO-Link Master Transceiver with UARTS
E981.12
ADVANCE PRODUCT INFORMATION - JUL 26, 2011
In case of an over current is detected directly after the transmitter is activated by setting the pin TXEN
to high (or Bit STXEN=1), the output current is limited to an over current threshold I
. The transmitter
LIM_x
remains active for T
After this time the transmitter is disabled for T
After this first sequence
dON_OL.
dOFF1_OL.
a cyclic overcurrent shutdown with a configurable current limitation (I
) and dutycycle (T
THx_OFF_CONFx
dON_OL
/ T
) is implemented (see Fig. 6).
dOFF2_OL_CONFx
The configured dutycycle must not exceed the power dissipation limits of the device.
Fig. 6: Transmitter over load sequence
If an overload occurs while the transmitter was already active, it will turn off immediately after a
debounce time T
for T
, followed by the sequence described above using off times
deb_OL
d_Off2_OL
T
(see Fig. 7).
d_Off2_OL_confx
Fig. 7: Over load while driver was already active
This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.
ELMOS Semiconductor AG
Data Sheet 17 / 44
QM-No.: 25DS0069E.00