BCM6123XD1E5126YZZ Datasheet, PDF (7/30 Pages) Vicor Corporation – Isolated Fixed-Ratio DC-DC Converter

BCM6123xD1E5126yzz
Electrical Specifications (Cont.)
Specifications apply over all line and load conditions, unless otherwise noted; boldface specifications apply over the temperature range of
-40°C ≤ T_INTERNAL ≤ 125°C (T-Grade); All other specifications are at T_INTERNAL = 25ºC unless otherwise noted.
­Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
General Powetrain PRIMARY to SECONDARY Specification (Forward Direction) Cont.
Effective Primary Capacitance
(Internal)
C_{PRI_INT}
Effective Value at 380V_{PRI_DC}
0.37
µF
Effective Secondary Capacitance
(Internal)
C_{SEC_INT}
Effective Value at 47.5V_{SEC_DC}
25.6
µF
Effective Secondary Output
Capacitance (External)
C_{SEC_OUT_EXT}
Excessive capacitance may drive module into SC
protection
100
µF
Effective Secondary Output
Capacitance (External)
C_{SEC_OUT_AEXT}
C_{SEC_OUT_AEXT} Max = N * 0.5 * C_{SEC_OUT_EXT MAX}, where
N = the number of units in parallel
Powertrain Protection PRIMARY to SECONDARY (Forward Direction)
Auto Restart Time
Primary Overvoltage Lockout
Threshold
Startup into a persistent fault condition. Non-Latching
t_{AUTO_RESTART fault detection given VPRI_DC > VPRI_UVLO+}
292.5
357.5
ms
V_{PRI_OVLO+}
420
434.5
450
V
Primary Overvoltage Recovery
Threshold
V_{PRI_OVLO-}
405
424
440
V
Primary Overvoltage Lockout
Hysteresis
V_{PRI_OVLO_HYST}
10.5
V
Primary Overvoltage Lockout
Response Time
t_{PRI_OVLO}
100
µs
Primary Soft-Start Time
t_{PRI_SOFT-START}
From powertrain active. Fast Current limit protection
disabled during Soft-Start
1
ms
Secondary Output Overcurrent Trip
Threshold
I_{SEC_OUT_OCP}
28
37
50
A
Secondary Output Overcurrent
Response Time Constant
t_{SEC_OUT_OCP} Effective internal RC filter
3.2
ms
Secondary Output Short Circuit
Protection Trip Threshold
I_{SEC_OUT_SCP}
45
A
Secondary Output Short Circuit
Protection Response Time
t_{SEC_OUT_SCP}
1
µs
Overtemperature Shutdown
Threshold
t_OTP+
Temperature sensor located inside controller IC
125
°C
BCM^® Bus Converter
Page 7 of 30
Rev 1.1
01/2017
vicorpower.com
800 927.9474