MCZ33927EK Freescale Semiconductor, MCZ33927EK Datasheet - Page 36

• Manufacturer Part Number: MCZ33927EK
• Description: IC FET PRE-DRIVER 3PH 54-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MCZ33927EK

• Configuration: 3 Phase Bridge
• Input Type: Inverting and Non-Inverting
• Delay Time: 265ns
• Current - Peak: 600mA
• Number Of Configurations: 1
• Number Of Outputs: 3
• High Side Voltage - Max (bootstrap): 75V
• Voltage - Supply: 8 V ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 54-SOIC (7.5mm Width) Exposed Pad, 54-eSOIC, 54-HSOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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