MCZ33976EG Freescale Semiconductor, MCZ33976EG Datasheet - Page 22

• Manufacturer Part Number: MCZ33976EG
• Description: IC DRIVER DUAL GAUGE SPI 24-SOIC
• Manufacturer: Freescale Semiconductor
• Type: Serial Peripheral Interface (SPI) Dual Step Motor Gauge Driverr

Specifications of MCZ33976EG

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 2
• Current - Output: 100mA
• Voltage - Supply: 6.5 V ~ 26 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Supply Current: 4 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

0 for Gauge 1.
0 for Gauge 0.
the most recently commanded position.
the most recently commanded position.
indicates V
since the last SPI communication (refer to the Static Electrical
Characteristics table under
overvoltage event will automatically disable the driver
outputs. Because the pointer may not be in the expected
position, the master may want to re-calibrate the pointer
position with an RTZ command after the voltage returns to a
normal level. For an overvoltage event, both gauges must be
re-enabled as quickly as this flag returns to logic [0]. The
state machine will continue to operate properly as long as
V
indicates the V
SPI communication (refer to the Static Electrical
Characteristics table under
undervoltage event is just flagged; however, at some voltage
level below 4.0 V, the outputs turn OFF and the state
machine resets. Because the pointer may not be in the
expected position, the master may want to re-calibrate the
pointer position with an RTZ command after the voltage
returns to a normal level. For an undervoltage event, both
gauges may need to be re-enabled as quickly as this flag
returns to logic [0]. The state machine will continue to operate
properly as long as V
logic [1] on this bit indicates the clock count calibrated to a
value outside the expected range given the tolerance
specified by t
table under
page 7.
22
33976
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
A logic [1] on this bit indicates the V
DD
0POS1 (OD13) — This bit indicates the configured Position
•0 = Farthest CCW
•1 = Farthest CW
0POS0 (OD12) — This bit indicates the configured Position
• 0 = Farthest CCW
• 1 = Farthest CW
CMD1 (OD11) — This bit indicates whether Gauge 1 is at
• 0 = At commanded position
• 1 = Not at commanded position
CMD0 (OD10) — This bit indicates whether Gauge 0 is at
• 0 = At commanded position
• 1 = Not at commanded position
OV (OD9) — Overvoltage Indication. A logic [1] on this bit
• 0 = Normal range
• 1 = Battery voltage exceeded V
UV (OD8) — Undervoltage Indication. A logic [1] on this bit
• 0 = Normal range
• 1 = Battery voltage fell below V
CAL (OD7) — Calibrated Clock out of Specification. A
• 0 = Clock within spec
• 1 = Clock out of spec
OVUV (OD6) — Undervoltage or Overvoltage Indication.
is within the normal range.
PWR
POWER OUTPUT AND CLOCK
CLC
PWR
voltage exceeded the upper limit of V
in the Dynamic Electrical Characteristics
voltage fell below V
DD
is within the normal range.
POWER
POWER
PWR
PWRUV
INPUT, page 5). An
INPUT, page 5). An
PWROV
PWRUV
voltage fell to a level
TIMINGS,
since the last
PWROV
below the V
the Static Electrical Characteristics table under
INPUT, page 5). An undervoltage event is just flagged, while
an overvoltage event automatically disables the drive
outputs. Because the pointer may not be in the expected
position, the master may want to re-calibrate the pointer with
an RTZ command after the voltage returns to normal level.
For an overvoltage event, both gauges must be re-enabled
as soon as this flag returns to logic [0]. The state machine will
continue to operate properly as long as V
normal range.
since last SPI communication. A logic [1] on this bit indicates
the Gauge 1 pointer position changed since the last SPI
command. This information allows the master to confirm the
pointer is moving as commanded. This bit may also be used
to determine if Gauge 1 is enabled or disabled.
Communication. A logic [1] on this bit indicates the Gauge 0
pointer position has changed since the last SPI command.
This information allows the master to confirm the pointer is
moving as commanded. This bit may also be used to
determine if Gauge 0 is enabled or disabled.
on this bit indicates Gauge 1 is in the process of returning to
the zero position as requested with the RTZ command. This
bit will continue to indicate a logic [1] until the SPI message
following a detection of the zero position, or the RTZ feature
is commanded OFF using the RTZ message.
on this bit indicates Gauge 0 is in the process of returning to
the zero position as requested with the RTZ command. This
bit continues to indicate a logic [1] until the SPI message
following a detection of the zero position, or the RTZ feature
is commanded OFF using the RTZ message.
dedicated to drive Gauge 1 has exceeded the maximum
allowable junction temperature since the last SPI
communication and that Gauge 1 has been disabled. It is
recommended that the pointer be re-calibrated using the RTZ
A logic [1] on this bit indicates that the coil drive circuitry
• 0 = Normal range
• 1 = Battery voltage fell below V
MOV1 (OD5) — This bit identifies Gauge 1 movement
• 0 = Gauge 1 position has not changed since the last SPI
• 1 = Gauge 1 pointer position has changed since the last
MOV0 (OD4) — Gauge 0 Movement Since last SPI
• 0 = Gauge 0 position has not changed since the last SPI
• 1 = Gauge 0 pointer position has changed since the last
RTZ1 (OD3) — RTZ1 Is Enabled or Disabled. A logic [1]
• 0 = Return to Zero disabled
• 1 = Return to Zero enabled successfully
RTZ0 (OD2) — RTZ0 Is Enabled or Disabled. A logic [1]
• 0 = Return to Zero disabled
• 1 = Return to Zero enabled successfully
OT1 (OD1) — Gauge 1 Junction Overtemperature.
V
command
SPI command
command
SPI command
PWROV
PWRUV
since the last SPI communication (refer to
Analog Integrated Circuit Device Data
Freescale Semiconductor
PWRUV
DD
or exceeded
is within the
POWER