MC34911G5AC Freescale, MC34911G5AC Datasheet - Page 43

• Manufacturer Part Number: MC34911G5AC
• Manufacturer: Freescale

Specifications of MC34911G5AC

• Turn Off Delay Time: 10us
• Number Of Drivers: 2
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Compliant

PWMHS1 - PWM Input Control Enable.
to control the high side switch. The high side switch must be
enabled (HS1 bit).
HS1 - HS1 Switch Control.
High Side Status Register - HSSR
is also returned when writing to the HSCR.
High Side thermal shutdown
setting the HS1OP and HS1CL bits simultaneously.
HS1OP - High Side Switch Open-Load Detection
conducting current below a certain threshold indicating
possible load disconnection.
HS1CL - High Side Current Limitation
operating in current limitation mode.
Low Side Control Register - LSCR
Writing the Low Side Control Register (LSCR) will also return
the Low Side Status Register (LSSR).
Analog Integrated Circuit Device Data
Freescale Semiconductor
Table 21. Low Side Control Register - $8
Condition
This write-only bit enables/disables the PWMIN input pin
1 = PWMIN input controls HS1 output.
0 = HS1 is controlled only by SPI.
This write-only bit enables/disables the high side switch.
1 = HS1 switch on.
0 = HS1 switch off.
This register returns the status of the high side switch and
A thermal shutdown of the high side driver is indicated by
This read-only bit signals that the high side switch is
1 = HS1 Open Load detected (or thermal shutdown)
0 = Normal
This read-only bit indicates that the high side switch is
1 = HS1 in current limitation (or thermal shutdown)
0 = Normal
This register controls the operation of the low side drivers.
Reset
Reset
Value
Write
Table 20. High Side Status Register - $6/$7
Read
PWMLS2
C3
0
POR
S3
-
PWMLS1
C2
0
S2
-
POR, Reset mode, ext_reset, LSx
over-temp or (VSOV & HVSE)
HS1OP
LS2
C1
0
S1
HS1CL
S0
LS1
C0
0
PWMLx - PWM input control enable.
to control the respective low side switch. The corresponding
low side switch must be enabled (LSx bit).
LSx - LSx switch control.
side switch.
Low Side Status Register - LSSR
and is also returned when writing to the LSCR.
Low Side thermal shutdown
setting all LSxOP and LSxCL bits simultaneously.
LSxOP - Low Side Switch Open-Load Detection
conducting current below a certain threshold indicating
possible load disconnection.
LSxCL - Low Side Current Limitation
switch is operating in current limitation mode.
Timing Control Register - TIMCR
sense and Forced Wake-up periods. Writing to the Timing
Control Register (TIMCR) will also return the Watchdog
Status Register (WDSR).
This write-only bit enables/disables the PWMIN input pin
1 = PWMIN input controls LSx.
0 = LSx is controlled only by SPI.
This write-only bit enables/disables the corresponding low
1 = LSx switch on.
0 = LSx switch off.
This register returns the status of the low side switches
A thermal shutdown of the low side drivers is indicated by
This read-only bit signals that the low side switches are
1 = LSx Open Load detected (or thermal shutdown)
0 = Normal
This read-only bit indicates that the respective low side
1 = LSx in current limitation (or thermal shutdown)
0 = Normal
This register allows to configure the watchdog, the cyclic
Table 22. Low Side Status Register - $8/$9
Read
LS2OP
C3
LOGIC COMMANDS AND REGISTERS
FUNCTIONAL DEVICE OPERATIONS
LS2CL
C2
LS1OP
C1
LS1CL
C0
33911
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