User guide

80
ATA5811/ATA5812 [Preliminary]
4689B–RKE–04/04
Electrical Characteristics: Car Application
All parameters refer to GND and are valid for T
amb
= -40°C to +105°C, V
VS2
= 4.75 V to 5.25 V. Typical values at V
VS2
= 5 V
and T
amb
= 25°C. Application according to Figure 5 on page 7. f
RF
= 315.0 MHz/433.92 MHz/868.3 MHz unless otherwise
specified
No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
11 Car Application
11.1
Supported voltage
range
Car application
17,
19, 27
V
VS2
, V
AUX
4.75 5.25 V A
11.2
Power supply output
voltage
Car application
V
VS2
= V
VAUX
I
VSOUT
≤ 13.5 mA
(3.25 V regulator
mode, V_REG2, see
Figure 21 on page
26)
22 V
VSOUT
3.0 3.5 V A
11.3
Supply voltage for
microcontroller-
interface
27 V
VSINT
2.4 5.25 V A
11.4 Threshold hysteresis V
Thres_2
- V
Thres_1
22 ∆V
Thres
60 80 100 mV B
11.5
Reset threshold
voltage at pin VSOUT
(N_RESET)
22 V
Thres_1
2.18 2.3 2.42 V A
11.6
Reset threshold
voltage at pin VSOUT
(Low_Batt)
22 V
Thres_2
2.26 2.38 2.5 V A
11.7
Current in Idle mode
on pin VS2 and VAUX
I
VSOUT
= 0
CLK enabled
V
VSOUT
enabled
CLK disabled
V
VSOUT
enabled
V
VSOUT
disabled
17, 19 I
IDLE_VS2_VAUX
444
380
310
580
500
400
µA
µA
µA
B
B
B
11.8
Supply current in Idle
mode
17,
19,
22, 27
I
S_IDLE
I
S_IDLE
= I
IDLE_VS2_VAUX
+ I
VSINT
+ I
EXT
11.9
Current in RX mode
on pin VS2 and VAUX
I
VSOUT
= 0 17, 19 I
RX_VS2_VAUX
10.8 14.5 mA B
11.10
Supply current in RX
mode
CLK enabled V
VSOUT
enabled
17,
19,
22, 27
I
S_RX
I
S_RX
= I
RX_VS2_VAUX
+ I
VSINT
+ I
EXT
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
VAUX
VS2
I
IDLE_VS2,VAUX
or I
RX_VS2,VAUX
Startup_PLL_VS2,VAUX
TX_VS2,VAUX
or I
or I