mc33912 Freescale Semiconductor, Inc, mc33912 Datasheet - Page 15

• Manufacturer Part Number: mc33912
• Description: Lin System Basis Chip With Dc Motor Pre-driver And Current Sense
• Manufacturer: Freescale Semiconductor, Inc

Table 4. Dynamic Electrical Characteristics (continued)
34912, unless otherwise noted. Typical values noted reflect the approximate parameter mean at T
conditions, unless otherwise noted.
Analog Integrated Circuit Device Data
Freescale Semiconductor
L1, L2, L3 AND L4 INPUTS
STATE MACHINE TIMING
LIN PHYSICAL LAYER: DRIVER CHARACTERISTICS FOR NORMAL SLEW RATE - 20.0KBIT/SEC
LIN PHYSICAL LAYER: DRIVER CHARACTERISTICS FOR SLOW SLEW RATE - 10.4KBIT/SEC
Notes
Wake-up Filter Time
Delay Between
and Stop Mode Activation
Normal Request Mode Timeout (see
Delay Between SPI Command and HS /LS Turn On
Delay Between SPI Command and HS /LS Turn Off
Delay Between Normal Request and Normal Mode After a Watchdog Trigger
Command (Normal Request Mode)
Delay Between
Minimum Time Between Rising and Falling Edge on the
Duty Cycle 1: D1 = t
Duty Cycle 2: D2 = t
Duty Cycle 3: D3 = t
Duty Cycle 4: D4 = t
44.
45.
46.
47.
48.
Characteristics noted under conditions 5.5V ≤ V
9V < V
9V < V
Normal Request Mode, VDD ON and
First Accepted SPI Command
7.0V
7.6V
7.0V
7.6V
This parameter is guaranteed by process monitoring but not production tested.
Delay between turn on or off command (rising edge on CS) and HS or LS ON or OFF, excluding rise or fall time due to external load.
Bus load R
threshold defined at each parameter. See
See
See
≤
≤
≤
≤
SUP
SUP
V
V
V
V
Figure
Figure
SUP
SUP
SUP
SUP
< 27V
< 27V
CS
CS
≤
≤
≤
≤
BUS
7, page 18.
8, page 18.
18V
18V
18V
18V
LOW-to-HIGH Transition (at End of SPI Stop Command)
Wake-Up (
BUS_REC(MIN)
BUS_REC(MAX)
BUS_REC(MIN)
BUS_REC(MAX)
and C
(44)
BUS
CS
Characteristic
1.0nF / 1.0 kΩ, 6.8 nF / 660Ω, 10nF / 500Ω. Measurement thresholds: 50% of TXD signal to LIN signal
/(2 x t
/(2 x t
LOW to HIGH) in Stop Mode and:
/(2 x t
/(2 x t
(44)
Figure
BIT
BIT
BIT
BIT
RST
), t
), t
), t
), t
12, page
BIT
BIT
BIT
BIT
HIGH
= 50µs
= 96µs
= 50µs
= 96µs
Figure
(45)
(45)
20
SUP
6, page 18.
)
CS
≤ 18V, -40°C ≤ T
A
t
Symbol
≤ 125°C for the 33912 and -40°C ≤ T
NR TOUT
t
t
t
t
t
t
SNR2N
t
WUSPI
S-
WUCS
t
STOP
S-
WUF
2
D1
D2
D3
D4
OFF
CS
ON
DYNAMIC ELECTRICAL CHARACTERISTICS
0.396
0.417
Min
110
8.0
9.0
4.0
90
—
—
–
–
–
–
(46),
(46),
(48)
ELECTRICAL CHARACTERISTICS
(47)
Typ
150
A
20
15
—
—
—
—
—
—
–
–
–
–
= 25°C under nominal
0.581
0.590
Max
205
N/A
5.0
38
10
10
10
80
—
—
—
A
≤ 85°C for the
Unit
ms
µs
µs
µs
µs
µs
µs
µs
µs
µs
33912
15