mc33812 Freescale Semiconductor, Inc, mc33812 Datasheet - Page 11

• Manufacturer Part Number: mc33812
• Description: Multifunctional Ignition And Injector Driver
• Manufacturer: Freescale Semiconductor, Inc

Analog Integrated Circuit Device Data
Freescale Semiconductor
DYNAMIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions of 7.0 V ≤ V
typical values reflect the parameter’s approximate average value with V
POWER INPUT
WATCHDOG TIMER
ISO9141 TRANSCEIVER
LAMP DRIVER
DIGITAL LOGIC OUTPUTS
INJECTOR AND RELAY DRIVER
IGNITION PRE-DRIVER
Notes
Required Low State Duration on VPWR for Under-voltage Detect
V
Maximum time value Watchdog can be loaded with
Maximum WDRFSH pulse width to load full Watchdog time value
Minimum pulse width on WDRFSH to refresh Watchdog timer
Reset Pulse Width when Watchdog times out
Typical ISO9141 Data Rate
Turn OFF Delay MTX Input to ISO Output
Turn ON/OFF Delay ISO Input to MRX Output
Rise and Fall Time MRX Output (measured from 10% to 90%)
Maximum Rise and Fall Time MTX Input (measured from 10% to 90%)
Inrush Current Blanking Time (LAMPOUT only)
LAMPOUT, automatic retry timer during short to battery fault condition
Output ON Current Limit Fault Filter Timer
Output OFF Open Circuit Fault Filter Timer (INJECTOR and RELAY
Driver)
Output Slew Rate - Rise - Z
Output Slew Rate - Fall - Z
Output OFF Open Circuit Fault Filter Timer
Output ON Short-circuit to Battery Fault Detection Timer
15.
INJFLT, IGNFLT Output Signal Rise Time
INJFLT, IGNFLT Output Signal Fall Time
PWR
≤ V
This parameter is guaranteed by design, however is not production tested.
PWR_UV
(15)
LOAD
(15)
LOAD
Characteristic
= 14 Ω, V
= 14 Ω , V
(15)
LOAD
DYNAMIC ELECTRICAL CHARACTERISTICS
(15)
LOAD
= 14 V
= 14 V
PWR
≤ 18 V, -40°C ≤ T
(15)
WDRFSH
t
t
RETRY_LAMP
RXDF
t
WD
t
t
t
t
OC(BLANK)
WD
RXR
TXR
t
Symbol
t
t
WD
t
SR(FALL)
t
SR(RISE)
(ON)
(OFF)OC
(OFF)OC
ISO
R(DLO)
F
PWR
t
TXDF
C
t
t
(DLO)
RESET
SC
UV
, t
LOAD
, t
, t
≤ 125°C, unless otherwise noted. Where applicable,
MAX
(SC)
BR
RXDR
RXF
TXF
= 14 V, T
MIN
DYNAMIC ELECTRICAL CHARACTERISTICS
A
Min
100
100
100
1.0
1.0
5.0
7.0
1.0
1.0
30
30
–
–
–
–
–
–
–
–
–
= 25°C.
ELECTRICAL CHARACTERISTICS
Typ
100
100
7.0
5.0
5.0
10
10
60
60
–
–
–
–
–
–
–
–
–
–
–
Max
200
200
400
400
1.0
2.0
1.0
1.0
1.0
9.0
10
13
90
10
10
90
–
–
–
–
kbps
Unit
V/μs
V/μs
ms
ms
ms
μs
μs
μs
μs
μs
μs
μs
ns
ns
µs
µs
µs
µs
33812
s
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