BCM380y475x1K2A30
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of -40°C ≤ TINTERNAL
≤ 125°C (T-Grade); All other specifications are at TINTERNAL = 25ºC unless otherwise noted.
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Powertrain (Cont.)
Effective value at 47.5 VOUT
Excessive capacitance may drive module into
SC protection
Effective Output capacitance (internal)
Effective Output capacitance (external)
COUT_INT
25.6
µF
µF
COUT_EXT
0
100
Array Maximum external output
capacitance
COUT_AEXT
COUT_AEXT Max = N * 0.5*COUT_EXT Max
Protection
Startup into a persistent fault condition.
Non-Latching fault detection given VIN > VIN_UVLO+
Auto Restart Time
tAUTO_RESTART
292.5
357.5
ms
Input overvoltage lockout threshold
Input overvoltage recovery threshold
Input overvoltage lockout hysteresis
Overvoltage lockout response time
Input undervoltage lockout threshold
Input undervoltage recovery threshold
Input undervoltage lockout hysteresis
Undervoltage lockout response time
VIN_OVLO+
VIN_OVLO-
VIN_OVLO_HYST
tOVLO
420
405
434.5
424
10.5
100
221
243
15
450
440
V
V
V
µs
V
VIN_UVLO-
VIN_UVLO+
VIN_UVLO_HYST
tUVLO
200
225
240
259
V
V
100
µs
From VIN = VIN_UVLO+ to powertrain active, EN floating
(i.e One time Startup delay from
Undervoltage startup delay
tUVLO+_DELAY
20
ms
application of VIN to VOUT
From powertrain active
)
Soft-Start time
tSOFT-START
1
ms
Fast Current limit protection disabled during Soft-Start
Output overcurrent trip threshold
IOCP
tOCP
ISCP
tSCP
tOTP
tUTP
28
45
37
50
A
ms
A
Output overcurrent response time constant
Short circuit protection trip threshold
Short circuit protection response time
Overtemperature shutdown threshold
Undertemperature shutdown threshold
Effective internal RC filter
3.2
1
3
µs
ºC
ºC
Temperature sensor located inside controller IC
Temperature sensor located inside controller IC
Startup into a persistent fault condition.
125
-45
Undertemperature Restart time
tUTP_RESTART
s
Non-Latching fault detection given VIN > VIN_UVLO+
BCM® Bus Converter
Page 6 of 24
Rev 1.3
vicorpower.com
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06/2014