Datasheet CCE4503 (Dialog Semiconductor) - 10

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CCE4503 IO-Link Device IC 4 Functional Description
CCE4503 is a fully reverse polarity protected IO-Link slave device with one IO-Link channel. The system consists of a high voltage output stage with integrated overcurrent protection, a high voltage input stage with a spike-tolerant filter, a logic core with UART interface, an internal oscillator and an optional LDO. The LDO output voltage is factory programmed and needs to be specified with the order. To simplify the IO-Link protocol handling, a wake-up detection and automatic recovery function are implemented. Additional advance protection features such as overtemperature detection and undervoltage detection ensure robust functionality in industrial applications. All pins are ESD- protected.
4.1 Output stage
The output stage switches the output transistors in regard to TXD and TXEN. In IO-Link mode or Push-Pull mode TXEN is used to enable or disable the output stage. If TXEN is set high, the output stage is enabled and the output of CQ can be controlled by TXD (inverted). If TXEN is set low, the output stage is disabled and put into an inactive low-power state. TXEN and TXD can also be used to configure the device in NPN, PNP and Push-Pull mode. See Table 9. NPN mode can be configured by setting TXD high and using TXEN as control pin. PNP mode can be configured by setting TXD low and using TXEN as control pin.
Table 9: Output stage truth table Mode TXEN TXD CQ IO-Link
0 0 High-Z
(regular operation)
0 1 High-Z
/ Push-Pull
1 0 1 1 1 0
NPN
0 1 High-Z 1 1 0
PNP
0 0 High-Z 1 0 1
Datasheet Revision 2.0 20.02.2020
CFR0011-120-00 10 of 16 © 2020 Dialog Semiconductor