KIT33927EKEVBE Freescale Semiconductor, KIT33927EKEVBE Datasheet - Page 36

• Manufacturer Part Number: KIT33927EKEVBE
• Description: KIT EVALUATION FOR MC33927
• Manufacturer: Freescale Semiconductor
• Series: SMARTMOS™r
• Type: Other Power Managementr

Specifications of KIT33927EKEVBE

• Main Purpose: Power Management, FET Driver (External FET)
• Embedded: No
• Utilized Ic / Part: MC33927
• Primary Attributes: *
• Secondary Attributes: 8 V ~ 40 V Supply
• Interface Type: SPI
• Product: Power Management Modules
• Silicon Manufacturer: Freescale
• Silicon Core Number: MC33927
• Kit Application Type: Power Management
• Application Sub Type: FET Driver
• Kit Contents: Board, CD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MC33927

Table 18. 33927 Fault Protection
36
33927
FUNCTIONAL DEVICE OPERATION
PROTECTION AND DIAGNOSIS FEATURES
to disable all automatic shutdowns except for VLS undervoltage. Even when masked, faults will be registered by the status
registers.
1
2
3
4
5
6
No.
NOTE: Other protective actions should be taken at the system level by the controlling microcontroller or DSP. It is possible
Phase Output
Shorted to VBAT
(High-Side FET
Shorted)
Phase Output
Shorted to
Ground (R
Bypassed)
Low-Side FET
Shorted
High-Side FET
Opened
Low-Side FET
Opened
Phase Output
Opened (No
Load)
Fault
SENSE
Wire harness shorted to
battery
Drain-to-Source short on the
High-Side FET
Drain-to-Source short on the
Low-Side FET
Wire harness shorted to
Module board assembly
Module board assembly
Wire harness open
PROTECTION AND DIAGNOSIS FEATURES
Cause
battery
issue
issue
• Directly sensed by ADC as
• Overcurrent Comparator output
• Low-Side Phase Error
• Direct PHASEx output
• Desaturation Error
• High-Side Phase Error
• Direct PHASEx output
• Directly sensed by the ADC as
• Overcurrent Comparator output
• Desaturation Error
• High-Side Phase Error
• Direct PHASEx output
• Desaturation Error
• High-Side Phase Error
• Directly sensed by ADC as
• Low-Side Phase Error
• Directly sensed by ADC as
voltage across R
OC_OUT monitoring
(Overcurrent Error)
monitoring
monitoring
voltage across R
OC_OUT high (Overcurrent
error)
monitoring
voltage across R
voltage across R
Detection
SENSE
SENSE
SENSE
SENSE
Analog Integrated Circuit Device Data
• All external FETs turned off
• Fault bit set in Status Register
• INT pin set high
• OC_OUT pin set high
• All external FETs turned off
• Fault bit set in Status Register
• INT pin set high
• All external FETs turned off
• Fault bit set in Status Register
• INT pin set high
• OC_OUT pin set high
• All external FETs turned off
• Fault bit set in Status Register
• INT pin set high
• All external FETs turned off
• Fault bit set in Status Register
• INT pin set high
33927 Protective Action
Freescale Semiconductor