ATA6625-EK Atmel, ATA6625-EK Datasheet - Page 10

• Manufacturer Part Number: ATA6625-EK
• Description: BOARD DEMO LIN SBC FOR ATA6625
• Manufacturer: Atmel

Specifications of ATA6625-EK

• Main Purpose: Interface, LIN
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6625
• Primary Attributes: LIN-SBC (System-Basis-Chip) Transceiver, LIN 2.0, Voltage Regulator
• Secondary Attributes: 4 Power Modes: Pre-Normal, Normal, Sleep, Silent, 8-SOIC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5. Fail-safe Features
10
Atmel ATA6623/ATA6625
• During a short-circuit at LIN to V
• During a short-circuit from LIN to GND the IC can be switched into Sleep or Silent Mode. If
• The reverse current is very low < 2µA at pin LIN during loss of V
• During a short circuit at VCC, the output limits the output current to I
• Pin EN provides a pull-down resistor to force the transceiver into Recessive Mode if EN is
• Pin RXD is set floating if V
• Pin TXD provides a pull-up resistor to force the transceiver into Recessive Mode if TXD is
• If TXD is short-circuited to GND, it is possible to switch to Sleep Mode via ENABLE after
the power dissipation, the chip temperature exceeds T
off. The chip cools down and after a hysteresis of T
stays on high because LIN is high. During LIN overtemperature switch-off, the V
regulator is working independently.
the short-circuit disappears, the IC starts with a remote wake-up.
behavior for bus systems where some slave nodes are supplied from battery or ignition.
undervoltage, NRES switches to low and sends a reset to the microcontroller. The IC
switches into Fail-safe Mode. If the chip temperature exceeds the value T
output switches off. The chip cools down and after a hysteresis of T
on again. Because of Fail-safe Mode, the V
switched off from the microcontroller. The microcontroller can then start with normal
operation.
disconnected.
disconnected.
t
dom
> 20ms.
Batt
is disconnected.
Battery
, the output limits the output current to I
CC
voltage will switch on again although EN is
hys
, switches the output on again. RXD
LINoff
and the LIN output is switched
Batt
. This is optimal
hys
VCClim
, switches the output
VCCoff
. Because of
BUS_lim
4957I–AUTO–03/11
, the V
CC
. Due to
CC