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PDF AS8530 Data sheet ( Hoja de datos )
| Número de pieza | AS8530 | |
| Descripción | LIN Transceiver | |
| Fabricantes | ams | |
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AS8530
LIN Transceiver with Integrated Voltage Regulator and
MCU Interface for Automotive Applications
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.
It also 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 42V.
The product is available in ep-SOIC8 package.
Typically 45µA quiescent current in standby mode,
Typically 35µA quiescent current in sleep mode
Under voltage reset with factory options
LIN bus transceiver l conforming to LIN 2.1, TX time out fail
safe feature, over temperature warning and shut down
Window watchdog if factory enabled
Micro controller 2-wire interface through shared pins for
watchdog trigger, monitoring, register read /write
Chip ID for traceability and module ID
8 Backup registers to store data during VCC shut down
2 Key Features
ep-SOIC8 package
-40ºC to +125ºC ambient operating temperature
Operating voltage 6V to 18V
Linear, low-drop voltage regulator: VCC = 5V ±5% or 3.3V ±5%
as a factory programming option
50mA load current
Operating modes: Normal and Standby or Normal and Sleep as
a factory option
3 Applications
The AS8530 is a System Basis Chip for automotive LIN networked
sensor or actuator slaves.
Figure 1. AS8530 LIN Transceiver Block Diagram
VSUP
LDO
VCC
POR-VSUP
Temperature
Limiter
AS8530
POR-VCC
RESET_VSUP_N
TSHD
RESET_VCC_N
EN
Mode
Control
Control
Signals
Reset
RESET_VSUP_N
LIN
Wakeup
WWD Output Block
RESET
2-Wire
Interface
Window
Watchdog
(WWD)
VSUP
Receiver
30k Transmitter
LIN
Slew
Control
RX
VCC
15k
TX
GND LIN Transceiver
www.ams.com/Lin_CompanionIC/AS8530
Revision 1.1
1 - 32
1 page  
AS8530
Datasheet - Absolute Maximum Ratings
5 Absolute Maximum Ratings
Stresses beyond those listed in Table 2 may cause permanent damage to the device. These are stress ratings only, and functional operation of
the device at these or any other conditions beyond those indicated in Electrical Characteristics on page 6 is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Table 2. Absolute Maximum Ratings
Parameter
Electrical Parameters
Min Max Units
Comments
DC Supply Voltage
VSUP
EN
VCC
LIN
-0.3 42
-0.3
VSUP +
0.3
-0.3 7
-27 +40
V
V
V
V
Transient up to 500ms duration
RESET, RX, TX
Input current (latchup immunity) Iscr
Electrostatic Discharge
Electrostatic Discharge (ESD)
Norm: AEC-Q-100-002
Continuous Power Dissipation
-0.3 VCC + 0.3 V
-100 100
mA
±2
±4 kV
±6
Norm: JEDEC 78
For on board signals VCC, TX, RX, Reset
For VSUP
LIN to VSS, HBM Model
Total operating power dissipation
(all supplies and outputs) Pt
Temperature Ranges and Storage Conditions
0.25
W
epSOIC8 in still air, soldered on JEDEC standard
board @125º ambient, static operation = no time limit
Storage temperature (Tstrg)
Package body temperature (Tbody)
-55 +150 ºC
The reflow peak soldering temperature (body
temperature) specified is in accordance with IPC/
JEDEC J-STD-020 “Moisture/Reflow Sensitivity
+260 ºC Classification for Non-Hermetic Solid State Surface
Mount Devices”.
The lead finish for Pb-free leaded packages is matte
tin (100% Sn).
Humidity non-condensing
5 85 %
Moisture Sensitive Level
3
Represents a maximum floor life time of 168h
www.ams.com/Lin_CompanionIC/AS8530
Revision 1.1
5 - 32
5 Page 
AS8530
Datasheet - Electrical Characteristics
6.6 VCC Undervoltage Reset and Window Watchdog
The values in this table are valid for normal and standby modes. All parameters are tested, unless mentioned otherwise.
Symbol
Vuvr_off
Vuvr_on
Vuvr1_off
Vuvr1_on
Vuvr2_off
Vuvr2_on
Vuvr3_off
Vuvr3_on
Vhyst_vcc
trr
Vsuvr_off
Vsuvr_on
WD_TCL
WD_TSV
tRes
Tshd
Parameter
VCC under-voltage threshold off
(Default)
VCC under voltage threshold on
(Default)
VCC under voltage threshold off
(Factory Option)
VCC under voltage threshold on
(Factory Option)
VCC under voltage threshold off
(Factory Option)
VCC under voltage threshold on
(Factory Option)
VCC under-voltage threshold off
(Factory Option)
VCC under voltage threshold on
(Factory Option)
Hysteresis of under-voltage threshold
on/off VCC
Spike filter on VCC
VSUP under-voltage threshold off
VSUP under-voltage threshold on
WWD non-service time
(if factory enabled)
WWD Service – time
(if factory enabled)
Reset delay time
Temporary shutdown reset active time
Conditions
Rising edge of VCC
Falling edge of VCC
Rising edge of VCC 1
Falling edge of VCC 1
Rising edge of VCC 1
Falling edge of VCC 1
Rising edge of VCC 1
Falling edge of VCC 1
Default and all other factory options
To remove disturbance
BOR level (considered to be the Master
Reset for AS8530)
RESET will be generated 1 2
RESET will not be generated 1
4ms, 16ms, 32ms (typ) are factory options
(min = -25% and max = +50% of typical)
Min
2.55
2.3
3.0
2.75
3.5
3.25
4.0
3.75
0.1
4
0-75
75-150
6
0.1
Typ Max
2.95
2.7
3.4
3.15
3.9
3.65
4.4
4.15
0.25 0.4
3.85
3.25
0 -100 0-125
100-200 125-250
8 12
1
Units
V
V
V
V
V
V
V
V
V
µs
V
V
ms
ms
ms
s
1. These are factory options which could be made available on specific request.
2. -40%, -20%, +20%, +60%, and +100% timings are available as factory options.
www.ams.com/Lin_CompanionIC/AS8530
Revision 1.1
11 - 32
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