BCM400P500T1K8A31 Datasheet, PDF (6/23 Pages) Vicor Corporation – Fixed Ratio DC-DC Converter

BCM400y500x1K8A31
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
Effective Output capacitance (internal)
Effective Output capacitance (external)
Array Maximum external output
capacitance
C_{OUT_INT}
COUT_EXT
C_{OUT_AEXT}
Powertrain (Cont.)
Effective value at 50 V_OUT
Excessive capacitance may drive module into
SC protection
C_{OUT_AEXT} Max = N * 0.5*C_{OUT_EXT} Max
Auto Restart Time
t_{AUTO_RESTART}
Powertrain Protection
Startup into a persistent fault condition.
Non-Latching fault detection given V_IN > V_{IN_UVLO+,}
Module will ignore attempts to re-enable during time off
Input overvoltage lockout threshold
VIN_OVLO+
Input overvoltage recovery threshold
VIN_OVLO-
Input overvoltage lockout hysteresis
VIN_OVLO_HYST
Overvoltage lockout response time
Soft-Start time
t_OVLO
t_SOFT-START
From powertrain active
Fast Current limit protection disabled during Soft-Start
Output overcurrent trip threshold
Overcurrent Response Time Constant
Short circuit protection trip threshold
Short circuit protection response time
Overtemperature shutdown threshold
I_OCP
t_OCP
Effective internal RC filter
I_SCP
t_SCP
t_OTP
Temperature sensor located inside controller IC
Powertrain Supervisory Limits
Input overvoltage lockout threshold
V_{IN_OVLO+}
Input overvoltage recovery threshold
V_{IN_OVLO-}
Input overvoltage lockout hysteresis
V_{IN_OVLO_HYST}
Overvoltage lockout response time
t_OVLO
Input undervoltage lockout threshold
V_{IN_UVLO-}
Input undervoltage recovery threshold
V_{IN_UVLO+}
Input undervoltage lockout hysteresis V_{IN_UVLO_HYST}
Undervoltage lockout response time
Undervoltage startup delay
t_UVLO
t_{UVLO+_DELAY}
From V_IN = V_{IN_UVLO+} to powertrain active,
EN floating, (i.e One time Startup delay from
application of V_IN to V_OUT)
Output Overcurrent Trip Threshold
I_OCP
Overcurrent Response Time Constant
t_OCP
Overtemperature shutdown threshold
t_OTP
Temperature sensor located inside controller IC
Undertemperature shutdown threshold
Undertemperature restart time
t_UTP
t_{UTP_RESTART}
Temperature sensor located inside controller IC
Startup into a persistent fault condition. Non-Latching
fault detection given V_IN > V_{IN_UVLO+}
0
292.5
430
420
37.5
52
125
420
405
200
225
42.5
125
25.6
440
430
10
10
1
47
3.6
1
436
426
10
100
226
244
15
100
20
45
2
3
µF
100
µF
357.5 ms
450
V
440
V
V
µs
ms
59
A
ms
A
µs
ºC
450
V
440
V
V
µs
250
V
259
V
V
µs
ms
47.5
A
ms
ºC
-45
ºC
s
BCM^® Bus Converter
Page 6 of 23
Rev 1.3
05/2015
vicorpower.com
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