ATA663201/03/31/54
LIN Bus Device Family Including Voltage Regulator and LIN SBC
with Compatible Footprint
Features
Description
• ISO 26262 Functional Safety Ready
• Supply Voltage up to 40V
• Operating Voltage VVS = 5V to 28V
• Supply Current
The ATA663201/03/31/54 device family includes two
basic products: a LIN system basis chip (SBC) and a
low-drop voltage regulator with compatible footprints.
The ATA663231/54 (SBC) is a fully-integrated LIN
transceiver, designed according to the LIN
specification 2.0, 2.1, 2.2, 2.2A, ISO 17987-4 and
SAEJ2602-2, with a low-drop voltage regulator (3.3V/
5V/85 mA). The combination of voltage regulator and
bus transceiver makes it possible to develop simple but
powerful nodes in LIN bus systems.
- Sleep mode: typically 9 μA
- Silent mode: typically 47 μA
- Very low current consumption at low supply
voltages (2V < VVS < 5.5V): typically 130 μA
• Linear Low-Drop Voltage Regulator, 85 mA
Current Capability:
The ATA663231/54 is designed to handle the low-
speed data communication in vehicles (for example, in
convenience electronics). Improved slope control at
the LIN driver ensures secure data communication up
to 20 Kbaud. The bus output is designed to withstand
high voltage. Sleep mode and Silent mode ensure
minimized current consumption even in the case of a
floating or a short-circuited LIN bus.
- MLC (multi-layer ceramic) capacitor with 0Ω
ESR
- Normal, Fail-Safe and Silent mode
- ATA663254: VVCC = 5.0V, ±2%
- ATA663231: VVCC = 3.3V, ±2%
• Sleep Mode: VCC is Switched Off
• Active Mode:
The ATA663201/03 (voltage regulator) is a fully
integrated low-drop voltage regulator, with 3.3V/5V
output voltage and 85 mA current capability. It is
especially designed for the automotive environment. A
key feature is that the current consumption is always
below 170 μA (without load), even if the supply voltage
is below the regulator’s nominal output voltage.
- ATA663203: VVCC = 5.0V, ±2%
- ATA663201: VVCC = 3.3V, ±2%
• VCC Undervoltage Detection with Open Drain
Reset Output (NRES, 4 ms Reset Time)
• Voltage Regulator is Short-Circuit and
Overtemperature Protected
• LIN Physical Layer According to LIN 2.0, 2.1, 2.2,
2.2A, ISO 17987-4 and SAEJ2602-2
Note:
The current LIN standards use the
terminology "Master" and "Slave”.
The LIN standard groups have decided
that the terms "Commander" and
"Responder" will be used in future.
• Wake-Up Capability via LIN Bus (100 μs
Dominant)
• Wake-Up Source Recognition
• TXD Time-Out Timer
Package Types
ATA663231/ATA663254
• Bus Pin is Overtemperature and Short-Circuit
Protected Versus GND and Battery
ATA663201/ATA663203
3 x 3 VDFN*
3 x 3 VDFN*
• Advanced EMC and ESD Performance
RXD
NC
VCC
1
VCC
8
1
8
7
• Fulfills the OEM “Hardware Requirements for LIN
in Automotive Applications Rev.1.3”
EN
NRES
TXD
VS
2
3
4
NC
NRES
NC
VS
7
6
5
2
3
4
EP
9
EP
9
LIN
GND
NC
6
5
• Interference and Damage Protection According to
ISO7637
GND
SBC
Voltage
Regulator
• AEC-Q100 and AEC-Q006 Qualified
• Packages:
ATA663254
SOIC
- 8-Lead 3 x 3 VDFN (all types) with wettable
flanks (Moisture Sensitivity Level 1)
RXD
EN
VCC
VS
1
8
2
3
4
7
6
5
- 8-Lead SOIC (only ATA663254)
NRES
TXD
LIN
GND
Note:
LIN SBC: LIN system basis chip including
LIN transceiver and voltage regulator.
*Includes Exposed Thermal Pad (EP); see Table 1-4.
2018-2021 Microchip Technology Inc.
DS20006075D-page 1
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