ATA6621 Datasheet, PDF (19/26 Pages) ATMEL Corporation – LIN Transceiver with 5V Regulator and Watchdog

ATA6621
5. Electrical Characteristics (Continued)
5V < V_S < 18V, T_amb = –40°C to +125°C
No. Parameters
Test Conditions
Pin Symbol Min
Typ
Max
At VCC undervoltage
7.4
threshold the state
switches back to Pre
Normal Mode
Referred to VCC
V_S > 5.5
V_thunS
3.9
4.4
7.5
Hysteresis of
undervoltage threshold
Referred to VCC
V_S > 5.5V
Vhys_thun
40
7.6 Output current limitation V_S > 0V
I_VCCs
–200
LIN Bus Driver: Bus Load Conditions:
8 Load1 (Small): 1 nF, 1 kΩ; Load2 (Large): 10 nF, 500Ω; RRXD = 5 kΩ; C_RXD = 20 pF
10.5, 10.6 and 10.7 Specify the Timing Parameters for Proper Operation at 20 Kbps
–130
8.1
Driver recessive output
voltage
Load1 / Load2
V_BUSrec
0.9 V_S
V_S
8.2
Driver dominant voltage
V_VS = 7V
R_load = 500Ω
8.3
Driver dominant voltage
V_VS = 18V
R_load = 500Ω
8.4
Driver dominant voltage V_VS = 7V
V_{BUSdom_DRV_LoSUP}
R_load = 1000Ω
8.5
Driver dominant voltage
V_VS = 18V
R_load = 1000Ω
8.6 Pull-up resistor to VS The serial diode is mandatory
8.7
8.8
8.9
8.10
Self-adapting current
limitation
V_Bus = V_{Batt_max}
T_j = 125°C
T_j = 27°C
T_j = –40°C
Input leakage current at Input leakage current
the receiver including
pull-up resistor as
specified
Driver off
V_BUS = 0V
V_Battery = 12V
Driver off
Leakage current LIN
recessive
8V < V_Battery < 18V
8V < V_BUS < 18V
V_BUS ≥ V_Batt
Leakage current when
control unit disconnected
from ground. Loss of
local ground must not
affect communication in
GND_Device = V_S
V_Battery = 12V
0V < V_BUS < 18V
the residual network
V_{_LoSUP}
1.2
V_{_HiSUP}
2
V_{_LoSUP_1k}
0.6
V_{_HiSUP_1k_}
0.8
R_LIN
20
30
60
52
110
I_{BUS_LIM}
80
170
120
230
I_{BUS_PAS_dom}
–1
I_{BUS_PAS_rec}
15
20
I_{BUS_NO_gnd}
–10
0.5
10
8.11
Node has to sustain the
current that can flow
V_Battery disconnected
under this condition. Bus V_{SUP_Device} = GND
must remain operational 0V < V_BUS < 18V
under this condition
I_BUS
0.5
3
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Unit Type*
V
A
mV
D
mA
A
V
A
V
A
V
A
V
A
V
A
kΩ
A
mA
mA
A
mA
mA
A
µA
A
µA
A
µA
A
19
4887B–AUTO–01/06