KIT33937AEKEVBE Freescale Semiconductor, KIT33937AEKEVBE Datasheet - Page 40

• Manufacturer Part Number: KIT33937AEKEVBE
• Description: Power Management Modules & Development Tools 3-PHASE FET PRE-DRIV
• Manufacturer: Freescale Semiconductor
• Type: MOSFET & Power Driverr

Specifications of KIT33937AEKEVBE

• Interface Type: SPI
• Product: Power Management Modules
• Silicon Manufacturer: Freescale
• Silicon Core Number: MC33937
• Kit Application Type: Power Management
• Application Sub Type: FET Driver
• Kit Contents: Board, CD
• Rohs Compliant: Yes
• For Use With/related Products: MC33937

Table 19. 33937 Fault Protection
40
33937
FUNCTIONAL DEVICE OPERATION
PROTECTION AND DIAGNOSIS FEATURES
automatic shutdowns except for VLS undervoltage. Even when masked, faults will be registered by the status registers.
1
2
3
4
5
6
6. Return
No.
NOTE: Other protective actions should be taken at the system level by the controlling microcontroller or DSP. It is possible to disable all
Phase Output
Shorted to VSUP
(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 voltage
• Over-current Comparator output
• Low Side Phase Error
• Direct PHASEx output monitoring
• Desaturation Error
• High Side Phase Error
• Direct PHASEx output monitoring
• Directly sensed by the ADC as
• Over-current Comparator output
• Desaturation Error
• High Side Phase Error
• Direct PHASEx output monitoring
• Desaturation Error
• High Side Phase Error
• Directly sensed by ADC as voltage
• Low Side Phase Error
• Directly sensed by ADC as voltage
across R
OC_OUT monitoring (Over-current
Error)
voltage across R
OC_OUT high (Over-current error)
across R
across R
SENSE
SENSE
SENSE
Detection
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
33937 Protective Action
Freescale Semiconductor