AS8530-ASOT AMSCO [austriamicrosystems AG], AS8530-ASOT Datasheet

AS8530-ASOT

Manufacturer Part Number

AS8530-ASOT

Description

LIN Transceiver with Integrated Voltage Regulator and MCU Interface for Automotive Applications

Manufacturer

AMSCO [austriamicrosystems AG]

Datasheet

1.AS8530-ASOT.pdf (29 pages)

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A S 8 5 3 0

LIN Tr a ns ce i ve r w it h I nt eg ra t e d Volt a ge Re gul at or a nd

M C U I n t e r f a c e f o r A u t o m o t i v e A p p l i c a t i o n s

1 General Description

The AS8530 is a general purpose companion IC for sensor and

actuator LIN slaves offering LIN transceiver and low drop voltage

regulator.

As well it provides a 2-wire microcontroller interface through shared

EN and TX pins to access a window watchdog with RC oscillator,

control registers, backup registers and monitoring information.

The IC is fabricated in a high voltage CMOS technology which is

able to withstand voltages up to 50V.

The product is available in SOIC package with exposed pad.

2 Key Features

www.austriamicrosystems.com/Lin_CompanionIC/AS8530

Figure 1. AS8530 LIN Transceiver Block Diagram

P r e l i m i n a r y D a t a S h e e t

Operating voltage 6 to 18V, max 42V for 500ms

Linear, low-drop voltage regulator: VCC = 5V±3% or 3.3V as a

factory programming option

50mA load current

Operating modes: Normal and Standby or Normal and Sleep as

a factory option

Typically 40µA quiescent current in standby mode, Typically

30µA quiescent current in sleep mode

VSUP

GND

BUS

RESET_VSUP_N

POR-VSUP

2 wire inter-

Watchdog

Window

(WWD)

face

RESET_VSUP_N

Temperature

LIN Transceiver

Control

Limiter

Mode

VSUP

30k

TSHD

LIN Wakeup

LDO

Revision 0.01

Transmitter

AS8530

Control

Signals

Receiver

3 Applications

The AS8530 is a System Basis Chip for automotive LIN networked

sensor or actuator slaves.

Under voltage reset with factory options

LIN bus transceiver with load independent slew control

conforming to LIN 2.1 and SAE J2602, short circuit protection,

TX time out fail safe feature, over temperature warning and shut

down

6kV ESD on LIN pin according to IEC 61000-4-2

Window watchdog if factory enabled.

Micro controller 2-wire interface through shared pins for watch-

dog trigger, monitoring, register read /write

Chip ID for traceability and module ID

8 Backup registers to store data during VCC shut down

8 pin epSOIC package

-40ºC to +125ºC ambient operating temperature

WWD Output

Control

RESET_VCC_N

Slew

POR-VCC

Reset

Block

15k

VCC

RESET

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