KIT908E625DWBEVB Freescale Semiconductor, KIT908E625DWBEVB Datasheet - Page 35

• Manufacturer Part Number: KIT908E625DWBEVB
• Description: KIT EVAL PRELIM MM98E625/26
• Manufacturer: Freescale Semiconductor

Specifications of KIT908E625DWBEVB

• Processor To Be Evaluated: MM908E625
• Data Bus Width: 16 bit
• Interface Type: SPI
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

HALF-BRIDGE OVERTEMPERATURE
PROTECTION
warning with the HTF in the Interrupt Flag Register (IFR). In
order to protect the outputs against overtemperature, the
High-Temperature Reset must be enabled. If this value is
reached, the part generates a reset and disables all power
outputs.
HALF-BRIDGE OVERCURRENT PROTECTION
to VSUP, and load shorts.
the high-side MOSFETs on all HB high-side MOSFETs are
switched off automatically. In the event an overcurrent on the
low side is detected, all HB low-side MOSFETs are switched
off automatically. In both cases the overcurrent status flag
HB_OCF in the System Status Register (SYSSTAT) is set.
enabled) by writing a Logic [1] to the HB_OCF flag in the
System Status Register or by reset.
HALF-BRIDGE OVERVOLTAGE/UNDERVOLTAGE
undervoltage and overvoltage conditions. This protection is
Analog Integrated Circuit Device Data
Freescale Semiconductor
The half-bridge outputs provide an overtemperature pre-
The half-bridges are protected against short to GND, short
In the event an overcurrent on the high side is detected,
The overcurrent status flag is cleared (and the outputs re-
The half-bridge outputs are protected against
1
Figure 20. BEMF Signal Generation
done by the low- and high-voltage interrupt circuitry. If one of
these flags (LVF, HVF) is set, the outputs are automatically
disabled.
(and the outputs re-enabled) by writing a Logic [1] to the LVF/
this flag is useless as long as a high- or low-voltage condition
is present.
HALF-BRIDGE CONTROL REGISTER (HBCTL)
H-Bridge Offset Chopping Enable Bit (OFC_EN)
the OFC_EN bit.
HVF flags in the Interrupt Flag Register or by reset. Clearing
Bits
Reset
Write
Read
The overvoltage/undervoltage status flags are cleared
This read/write bit enables offset chopping. Reset clears
• 1 = Offset chopping enabled
• 0 = Offset chopping disabled
BEMF Signal
Coil Current
Voltage on
OFC_EN
Register Name and Address: HBCTL - $02
7
0
1
CSA
6
0
LOGIC COMMANDS AND REGISTERS
5
0
0
FUNCTIONAL DEVICE OPERATION
4
0
0
3
0
0
CLS2
2
0
CLS1
1
0
908E625
CLS0
0
0
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