TH8061KDCA MELEXIS [Melexis Microelectronic Systems], TH8061KDCA Datasheet - Page 13

• Manufacturer Part Number: TH8061KDCA
• Description: Voltage Regulator with integrated LIN Transceiver
• Manufacturer: MELEXIS [Melexis Microelectronic Systems]

3. Functional Description
The TH8061 consists of a low drop voltage regulator 5V/50mA and a LIN bus transceiver, which is a bi-
directional bus interface for data transfer between LIN bus and the LIN protocol controller.
Additionally integrated is a RESET output with a reset delay of 100ms and a fixed threshold of 4.65V.
3.1 Operating Modes
The TH8061 provides two main operating modes “normal” and “sleep” and the intermediate states “POR”,
“Ini-state” and “thermal shutdown”. The main modes are fixed states defined by basic actions (VSUP start,
EN or wake-up). The intermediate states are soft states. They aren’t defined by logical actions but by
changes of voltage (VSUP, VCC) or junction temperature.
TH8061 – Datasheet
3901008061
Regulator off
Wake-up enabled (LIN-Receiver on)
LIN-Transmitter off
EN=L
VSUP < UVR_ON
POR
VSUP power on
Sleep-
Mode
VSUP < UVR_ON
VSUP > UVR_OFF
clear all state-FF
VSUP > UVR_OFF &
(EN= L/H or BUS Wake-up)
Figure 10 - State diagram of operating modes
EN= H/L
sleep mode &
T
J
> T
Voltage Regulator with integrated LIN Transceiver
sleep mode &
T
J
JSHD
< T
JREC
Ini-state
T
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J
> T
JREC
shutdown
thermal
VCC < V
normal mode &
T
J
clear reset timer
Regulator On -> VCC ramp up
RESET = L
Wake-up disabled
< T
JREC
VCC > V
RES
RES
Normal-
(4.65V)
Mode
normal mode &
T
J
Regulator off
Wake-up disabled
LIN-Transceiver off
> T
JSHD
EN=H
TH8061
Regulator on
RESET = L after 100ms
RESET=H
Wake-up disabled
LIN-Transceiver on
June 2004
Rev 007