TH8065 Datasheet, PDF (4/40 Pages) Melexis Microelectronic Systems – Voltage Regulator with LIN Transceiver and Watchdog

TH8065
Voltage Regulator with LIN Transceiver and Watchdog
1. Functional Diagram
VSUP
EN
CWD
WDI
BUS
GND
Vaux
Aux.
Supply
control
amplifier
BG
VBG
current
limitation
Reset
Generator
VCC
50k
VSUP
Adjust
ment
Temp.
TSHD Protection
POR
MR
4.65 V
Vaux
⎠ μs
Mode
Control
SBY
Osc
MR
Reset
POR-
Timer
4,8,15,30ms
CWD
comp
VBAT_Res
POR
4.65 V
Vaux
WDI_sig
Wake-up
Control
WD
logic
VCC
RESET-
Buffer
WDI_sig
Receiver
VBAT_Res
Vaux
Vaux
Wake-Filter
70μs
VBAT-
Reset
VSUP
RxD-
Buffer
VCC
Rec-Filter
30k
Transmitter
VCC
SBY
15k
Driver
control
Filter
MR
VCC
GND
RESET
RxD
TxD
Figure 1 - Block diagram
TH8065 – Datasheet
3901008065
Page 4 of 40
May 2006
Rev 003