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AS8520 Datasheet(PDF) 12 Page - ams AG

Part # AS8520
Description  LIN Transceiver with Voltage Regulator, Attenuator, Relay Drivers, MCU Interface for Automotive Applications
PDF  34 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS8520 Datasheet(HTML) 12 Page - ams AG

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www.austriamicrosystems.com/Lin_CompanionIC/AS8520
Revision 0.01
12 - 34
AS8520
Preliminary Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
tRes
Reset delay time
4ms, 16ms, 32ms (typ) are factory options
(min = -25% and max = +50% of typical)
68
12
ms
Tshd
Temporary shutdown reset active time
0.1
1
s
1. -40%, -20%, +20%, +60%, and +100% timings are available as factory options.
Table 11. Resistive Divider
Symbol
Parameter
Conditions
Min
Typ
Max
Units
RRHRL
Division ratio
1
20.8
21
21.2
Vin_bat
Input Battery Voltage Range
LDO must turn ON
6.8
18
V
Vbat_leak
VBAT = 18V
-1
1
µA
TCRHRL
Temperature drift of dividing ratio
from -40 to +125 deg
(guaranteed by design)
11V<VBAT<13V
2%
1. A division ratio of 481 is available as factory option.
Table 12. Low Side Relay Driver
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VOL
Output low level
@ 80 mA
0.4
V
Vovthh
Battery Over Voltage Threshold HIGH
Drivers will turn off when exceeded
20
24
V
Vovthl
Battery Over Voltage Threshold LOW
18
22
V
Vovhys
Battery Over Voltage Hysteresis
1
3
V
Vcl
Drain to Source clamp Voltage
Vcl < 50V, Iload = 10mA
VSUP +
1
VSUP +
5
V
Lload
Load Inductance
0.125
0.25
H
Rload
Load Resistance
80
120
Ω
Ron
ON Resistance
5
Ω
Ioz
Leakage in off state
1
µA
Table 13. SPI Interface
Symbol
Parameter
Conditions
Min
Typ
Max
Units
General
BRSPI
Bit rate
250
Kbps
TSCLKH
Clock high time
2
µs
TSCLKL
Clock low time
2
µs
Write Timing
tDIS
Data in setup time
20
ns
tDIH
Data in hold time
10
ns
TCSH
CS hold time
20
ns
Read Timing
tDOD
Data out delay
80
ns
tDOHZ
Data out to high impedance delay
Time for the SPI to release the SDO bus
80
ns
Table 10. Electrical Characteristics (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units



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