3.2 Description
The LIN-SBC ATA6624 is a fully integrated LIN transceiver, which complies with the LIN 2.0, 2.1 and SAEJ2602-2
specifications. It has a low-drop voltage regulator for 5V/85mA output and a window watchdog. The voltage regulator is able
to source up to 85mA, but the output current can be boosted by using an external NPN transistor.
The LIN-SBC is designed to handle the low-speed data communication in vehicles, e.g., in convenience electronics.
Improved slope control at the LIN-driver ensures secure data communication up to 20kBaud. Sleep mode and silent mode
guarantee very low current consumption.
Figure 3-1. Block Diagram
INH
RXD
PVCC
Normal and
Fail-safe
Mode
Receiver
-
+
WAKE
KL_15
PVCC
TXD
Edge
Detection
TXD
Time-out
Timer
Wake-up
Bus Timer
Slew Rate Control
VS
Normal
Mode
RF Filter
LIN
Short Circuit and
Overtemperature
Protection
Control Unit
Normal/Silent/
Fail-safe Mode
Debounce
5V
EN
Time
Mode Select
Undervoltage
Reset
VCC
PVCC
NRES
GND
Internal Testing
Unit
MODE TM
OUT
Watchdog
PVCC
NTRIG
Adjustable
Watchdog
Oscillator
WD_OSC
8
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