BCM3814x60E10A5yzz
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; boldface specifications apply over the temperature range of
–40°C ≤ TCASE ≤ 100°C (T-Grade); all other specifications are at TCASE = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Powertrain Supervisory Limits Specification – Forward Direction Operation (High Voltage Side to Low Voltage Side)
• These supervisory limits are set in the internal controller and can be reconfigured or disabled through PMBus™.
• When disabled, the powertrain protections presented in the previous table will intervene during fault events.
HI Side Overvoltage Lockout
Threshold
VHI_OVLO+
VHI_OVLO–
VHI_OVLO_HYST
tHI_OVLO
64
60
66
64
2
68
66
V
V
HI Side Overvoltage Recovery
Threshold
HI Side Overvoltage Lockout
Hysteresis
V
HI Side Overvoltage Lockout
Response Time
100
28
30
2
µs
V
HI Side Undervoltage Lockout
Threshold
VHI_UVLO–
26
28
30
32
HI Side Undervoltage Recovery
Threshold
VHI_UVLO+
VHI_UVLO_HYST
tHI_UVLO
V
HI Side Undervoltage Lockout
Hysteresis
V
HI Side Undervoltage Lockout
Response Time
100
µs
From VHI_DC = VHI_UVLO+ to powertrain active (i.e., one
HI Side Undervoltage Start-Up Delay tHI_UVLO+_DELAY time start-up delay from application of VHI_DC
to VLO_DC
20
ms
)
LO Side Overcurrent
Trip Threshold
ILO_OUT_OCP
tLO_OUT_OCP
tOTP+
193
204
3
215
A
LO Side Overcurrent
Response Time Constant
Effective internal RC filter
Internal
ms
°C
°C
Overtemperature
Shutdown Threshold
125
Overtemperature
Recovery Threshold
tOTP–
Internal
105
110
115
C-Grade
T-Grade
–25
–45
Undertemperature Shutdown
Threshold (Internal)
tUTP
°C
s
Start up into a persistent fault condition. Non-latching
fault detection given VHI_DC > VHI_UVLO+
Undertemperature Restart Time
tUTP_RESTART
3
BCM® in a VIA Package
Page 8 of 41
Rev 1.8
02/2018