TH8061KDCA MELEXIS [Melexis Microelectronic Systems], TH8061KDCA Datasheet - Page 16

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

3.4 VSUP under voltage reset
The under voltage detection unit inhibit an undefined behaviour of the TH8061 under low voltage condition. If
VSUP drops below V
switched to POR state. The following increasing of VSUP above V
and the voltage regulator starts with the initialization sequence.
VSUP under voltage in Normal Mode
Supply Voltages below V
VSUP under voltage in Sleep Mode
No exit from the sleep mode will take place if the VSUP voltage drops down to V
voltage reset becomes active (POR-state). As a result of this operating, the sleep mode is left to the normal
mode. If VSUP rises again above V
work with the normal mode.
The under voltage reset unit secures stable operating in the under voltage range of VSUP down to GND
level. The dynamic Power-On-Reset secures a defined internal state independent from the duration of the
VSUP drop, which secures a stable restart.
3.5 Overtemperature Shutdown
If the junction temperature is 155°C < T
regulator voltage will be switched off. The V
transceiver is switched off (recessive state).
After T
levels on EN and BUS. Within the thermal shutdown mode the transceiver can’t be switched to the normal
mode neither with local nor with remote wake-up.
The operation of the TH8061 is possible between T
parameter differences can appear.
After over-temperature switch-off the IC behaves as described in chapter 3.8 RESET.
TH8061 – Datasheet
3901008061
J
falls below 140°C the TH8061 will be initialized again (see Figure 16) independently from the voltage
SUVR_ON
SUVR_OFF
(typ. 3V) the under voltage detection becomes active and the IC will be
don’t influence the voltage regulator. The output voltage Vcc follows VSUP.
SUVR_OFF
Voltage Regulator with integrated LIN Transceiver
J
< 170°C the over-temperature recognition will be activated and the
(typ. 3.5V) the IC initialize the voltage regulator and continue to
CC
voltage drops down, the reset state is entered and the bus-
Page 16 of 36
Amax
(125°C) and the switch off temperature, but small
SUVR_OFF
(typ. 3.5V) cancels this POR state
SUVR_ON
TH8061
(typ. 3V). The under
June 2004
Rev 007