MC33385 Datasheet, PDF (5/11 Pages) Motorola, Inc – Automotive Quad Low Side Driver

MC33385
Freescale Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS T_CASE = - 40°up to + 125°C and V_CC = 4.5V up to 5.5V
Parameters
Symbol
Min
Typ
Max
NCSL/H ti Output Data Flout
tpchdz
100
Capacitance at SDI, SDO, CLk, CS
tpcld
10
NCS Filtertime (Pulses ≤ t_fNCS will be ignored)
t_fNCS
10
40
DIAGNOSTIC REGISTER AND SPI TIMING
Figure1- Timing Diagram to Read the Diagnostic Register
NCS
CLK
SDO
FSL
LSB
D1
D2
D3
D4
D5
D6
MSB
SDI
LSB
D1
D2
D3
D4
D5
D6
MSB
FR-RESET
NOTE : FR -RESET means Reset failure storage (internal signal)
Figure2 - Diagnostic Failure Register Structure
MSB
D7
D6
D5
D4
D3
LSB
D2
D1
D0
FSL
FAILURE INDICATOR BIT
Only valid during NCS = LOW to
the first L to H CLK change
1 : failure stored
0 : no failure
STATUS CHANNEL 4
11 : no failure
01 : open circuit
10: short to battery or overtemperature
00 : short to gnd
STATUS CHANNEL 3
STATUS CHANNEL 2
STATUS CHANNEL 1
Figure3- Serial Interface Timing
NCS
CLK
SDO
SDI
tsclch
thclcl
tclh
tcll
tcsdv
tpcld
FSL
D0
tcsdv
thcld
D0
D1
tsclcl thclch
tpchdz
D7
D7
Unit
ns
pF
ns
MC33385
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