ATA663201/03/31/54
LIN Bus Device Family Including Voltage Regulator and LIN SBC
with Compatible Footprint
Features Description
Supply Voltage up to 40V The ATA663201/03/31/54 device family includes two
basic products: a LIN system basis chip (SBC) and a
Operating Voltage V = 5V to 28V
VS
low-drop voltage regulator with compatible footprints.
Supply Current
The ATA663231/54 (SBC) is a fully-integrated LIN
- Sleep mode: typically 9 A
transceiver, designed according to the LIN
- Silent mode: typically 47 A
specification 2.0, 2.1, 2.2, 2.2A, ISO 17987-7 and
- Very low current consumption at low supply
SAEJ2602-2, with a low-drop voltage regulator (3.3V/
voltages (2V < V < 5.5V): typically 130 A
VS
5V/85 mA). The combination of voltage regulator and
Linear Low-Drop Voltage Regulator, 85 mA
bus transceiver makes it possible to develop simple but
Current Capability:
powerful slave nodes in LIN bus systems.
- MLC (multi-layer ceramic) capacitor with 0
The ATA663231/54 is designed to handle the low-
ESR
speed data communication in vehicles (for example, in
- Normal, Fail-Safe and Silent mode
convenience electronics). Improved slope control at
- ATA663254: V = 5.0V, 2%
the LIN driver ensures secure data communication up
VCC
to 20 Kbaud. The bus output is designed to withstand
- ATA663231: V = 3.3V, 2%
VCC
high voltage. Sleep mode and Silent mode ensure
Sleep Mode: VCC is Switched Off
minimized current consumption even in the case of a
Active Mode:
floating or a short-circuited LIN bus.
- ATA663203: V = 5.0V, 2%
VCC
The ATA663201/03 (voltage regulator) is a fully
- ATA663201: V = 3.3V, 2%
VCC
integrated low-drop voltage regulator, with 3.3V/5V
VCC Undervoltage Detection with Open Drain
output voltage and 85mA current capability. It is
Reset Output (NRES, 4 ms Reset Time)
especially designed for the automotive environment. A
Voltage Regulator is Short-Circuit and
key feature is that the current consumption is always
Overtemperature Protected
below 170 A (without load), even if the supply voltage
LIN Physical Layer According to LIN 2.0, 2.1, 2.2, is below the regulators nominal output voltage.
2.2A, ISO 17987-7 and SAEJ2602-2
Wake-Up Capability via LIN Bus (100 s Package Types
Dominant)
ATA663231/ATA663254 ATA663201/ATA663203
Wake-Up Source Recognition
3x3VDFN* 3x3VDFN*
TXD Time-Out Timer
RXD
1 8 VCC NC VCC
1 8
Bus Pin is Overtemperature and Short-Circuit
VS
EN 2 7 NC 2 VS
7
EP
EP
Protected Versus GND and Battery
9
9
NRES 3 LIN
6 NRES 3 6 NC
Advanced EMC and ESD Performance
TXD 4 GND NC GND
5 4 5
Fulfills the OEM Hardware Requirements for LIN
SBC Voltage
in Automotive Applications Rev.1.3
Regulator
Interference and Damage Protection According to
ATA663254
ISO7637
SOIC
AEC-Q100 Qualified
RXD VCC
1 8
Packages:
EN 2 VS
- 8-Lead 3 x 3 VDFN (all types) with wettable 7
flanks (Moisture Sensitivity Level 1) NRES 3
6 LIN
GND
TXD 4 5
- 8-Lead SOIC (only ATA663254)
*Includes Exposed Thermal Pad (EP); see Table 1-4.
Note: LIN SBC: LIN system basis chip including
LIN transceiver and voltage regulator.
2019 Microchip Technology Inc. DS20006075B-page 1ATA663201/03/31/54
TABLE 1: ATA663201/03/31/54 FAMILY
MEMBERS
Device Description
ATA663231 LIN-SBC with 3.3V regulator
ATA663254 LIN-SBC with 5V regulator
ATA663201 Voltage regulator 3.3V
ATA663203 Voltage regulator 5V
Block Diagram LIN Transceiver with Integrated Voltage Regulator (SBC)
7 VS
ATA663231/54
9&&
Normal and
Receiver
Fail-safe
Mode
-
RXD 1
+
6
LIN
RF-filter
9&&
Wake-up bus timer
Short-circuit and
overtemperature
protection
Slew rate control
TXD TXD
4
Time-out
timer
8 VCC
Voltage regulator
Sleep
EN 3
2 NRES
9&&
mode
Control Normal/Silent/
VCC
unit Fail-safe Mode
switched
3.3V/5V
GND 5
off
Undervoltage reset
DS20006075B-page 2 2019 Microchip Technology Inc.