TH8061 Datasheet, PDF (3/36 Pages) Melexis Microelectronic Systems – Voltage Regulator with integrated LIN Transceiver

TH8061
Voltage Regulator with integrated LIN Transceiver
List of Figures
Figure 1- Block diagram........................................................................................................................... 4
Figure 2 - Timing diagram for propagation delay acc. to LIN 1.3 and 2.0 ............................................... 9
Figure 3 - Timing diagram for slope times acc. to LIN 1.3..................................................................... 10
Figure 4 - Timing diagram for duty cycle acc. to LIN 2.0....................................................................... 10
Figure 5 - Test circuit for delay-, slope times and duty cycles............................................................... 11
Figure 6 - Test circuit for supply current I_Snl........................................................................................... 11
Figure 7 - Test circuit for bus voltage “recessiv” V_BUSrec ........................................................................ 11
Figure 8 - Test circuit for bus voltage “dominant” V_BUSdom ..................................................................... 12
Figure 9 - Test circuit for bus current “recessiv” I_INBUSR ......................................................................... 12
Figure 10 - State diagram of operating modes...................................................................................... 13
Figure 11 - Operating of power-on and under-voltage reset ................................................................. 15
Figure 12 - Receive mode impulse diagram.......................................................................................... 17
Figure 13 - TxD input circuitry ............................................................................................................... 18
Figure 14 - RxD output circuitry............................................................................................................. 18
Figure 15 - Characteristic of current limitation VCC = f(I_VCC)................................................................. 19
Figure 16 - Reset behaviour .................................................................................................................. 19
Figure 17 - Output current of reset output vs. VCC voltage .................................................................. 20
Figure 18 - EN input circuitry ................................................................................................................. 20
Figure 19 - R_IN characteristics of EN-input ............................................................................................ 21
Figure 20 - EN controlled via MCU........................................................................................................ 21
Figure 21 - Permanent normal mode..................................................................................................... 21
Figure 22 - Power dissipation LIN transceiver @ 20kbit ....................................................................... 22
Figure 23 - Save operating area............................................................................................................ 23
Figure 24 - ESR Curves for 6.8µF ≤ C_L ≤ 100µF and Frequency of 100kHz ........................................ 24
Figure 25 - Application circuit (slave node) ........................................................................................... 25
Figure 26 - Application circuit for LIN subbus with TH8061 as slave node ........................................... 26
Figure 27 – Example circuitry for connection of RxD to MCU for flash programming........................... 27
TH8061 – Datasheet
3901008061
Page 3 of 36
June 2004
Rev 007