TH3122 Datasheet, PDF (2/14 Pages) Melexis Microelectronic Systems – K-Bus Transceiver with integrated Voltage Regulator

TH3122
K-Bus Transceiver with integrated Voltage Regulator
Functional Diagram
VS
EN
VTR
BUS
SI
Power Supply
7.8V
+5V
6.8V
Reset-Logic
VTR-Logic
Over Temp
+5V
VCC
SENSE
RESET
OSC
V_thH
V_thL
pnp Control
slew rate
foldback
V_{THSI_H}
V_{THSI_L}
Wake-up
RxD
Bus-Logic
TxD
SEN/STA
+5V
SO
Figure 1 - Block Diagram
3901003122
Rev 004
Page 2
Dec/04