ATA6623-TAQY Atmel, ATA6623-TAQY Datasheet - Page 10

• Manufacturer Part Number: ATA6623-TAQY
• Description: TXRX LIN BUS W/VREG 3.3V SO-8
• Manufacturer: Atmel
• Type: Transceiverr

Specifications of ATA6623-TAQY

• Number Of Drivers/receivers: 1/1
• Protocol: LIN
• Voltage - Supply: 5 V ~ 27 V
• Mounting Type: Surface Mount
• Package / Case: SO-8
• Number Of Transmitters: 1
• Number Of Receivers: 1
• Power Supply Requirement: Single
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 8
• Operating Temperature (max): 150C
• Operating Temperature (min): -40C
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Lead Free Status / RoHS Status: Lead free / RoHS 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