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MC33977DWR2 Scheda tecnica(PDF) 11 Page - Freescale Semiconductor, Inc

Il numero della parte MC33977DWR2
Spiegazioni elettronici  Single Gauge Driver
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Produttore elettronici  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC33977DWR2 Scheda tecnica(HTML) 11 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
11
33977
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION (OPTIONAL)
FUNCTIONAL INTERNAL BLOCK DESCRIPTION (OPTIONAL)
Figure 6. Functional Internal 33977 Block Illustration
SERIAL PERIPHERAL INTERFACE (SPI)
This circuitry manages incoming messages and outgoing
status data.
LOGIC
This design element includes internal logic including state
machines and message decoding.
INTERNAL REFERENCE
This design element is used for step value levels.
UNDER AND OVERVOLTAGE DETECTION
This design element detects when VPWR is out of the
normal operating range.
OSCILLATOR
The internal oscillator generates the internal clock for all
timing critical features.
H-BRIDGE AND CONTROL
This circuitry contains the output coil drivers and the
multiplexers necessary for four quadrant operation and RTZ
sequencing. This circuitry is repeated for the Sine and Cosine
coils.
• Overtemperature — Each output includes an
overtemperature sensing circuit
• ILIM — Each output is current limited
RETURN TO ZERO (RTZ)
This circuitry outputs the voltage present on the non-driven
coil during RTZ operation.
SPI
Logic
Under and
Oscillator
Overvoltage
Detect
H-Bridge
and Control
Internal
Reference
RTZ


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