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BCM48BX120Y300A00 Datasheet, PDF (6/20 Pages) Vicor Corporation – Isolated Fixed Ratio DC-DC Converter
BCM48Bx120y300A00
Signal Characteristics
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.
Primary Control: PC
• The PC pin enables and disables the BCM. When held low, the BCM is disabled.
• In an array of BCM modules, PC pins should be interconnected to synchronize start up and permit start up into full load conditions.
• PC pin outputs 5V during normal operation. PC pin internal bias level drops to 2.5V during fault mode, provided VIN remains
in the valid range.
SIGNAL TYPE
ANALOG
OUTPUT
DIGITAL
INPUT /
OUTPUT
STATE
Regular
Operation
Standby
Transition
Start Up
Regular
Operation
Standby
Transition
ATTRIBUTE
PC voltage
PC available current
PC source (current)
PC resistance (internal)
PC capacitance (internal)
PC load resistance
PC enable threshold
PC disable threshold
PC disable duration
PC threshold hysteresis
PC enable to VOUT time
PC disable to standby time
PC fault response time
SYMBOL
CONDITIONS / NOTES
VPC
IPC_OP
IPC_EN
RPC_INT
CPC_INT
RPC_S
VPC_EN
VPC_DIS
TPC_DIS_T
VPC_HYSTER
TON2
TPC_DIS
TFR_PC
Internal pull down resistor
To permit regular operation
Minimum time before attempting
re-enable
VIN = 48V for at least TON1 ms
From fault to PC = 2V
MIN TYP MAX UNIT
4.7 5.0 5.3 V
2.0 3.5 5.0 mA
50 100
µA
50 150 400 kΩ
1000 pF
60
kΩ
2.0 2.5 3.0 V
1.95 V
1
s
50
mV
50 100 150 µs
4
10 µs
100
µs
Temperature Monitor: TM
• The TM pin monitors the internal temperature of the controller IC within an accuracy of ±5°C.
• Can be used as a “Power Good” flag to verify that the BCM module is operating.
• Is used to drive the internal comparator for Overtemperature Shutdown.
SIGNAL TYPE
ANALOG
OUTPUT
DIGITAL
INPUT /
OUTPUT
STATE
Regular
Operation
Transition
Standby
ATTRIBUTE
TM voltage range
TM voltage reference
TM available current
TM gain
TM voltage ripple
TM capacitance (external)
TM fault response time
TM voltage
TM pull down (internal)
SYMBOL
CONDITIONS / NOTES
VTM
VTM_AMB
ITM
ATM
VTM_PP
CTM_EXT
TFR_TM
VTM_DIS
RTM_INT
TJ controller = 27°C
CTM = 0pF, VIN = 48V, IOUT = 25A
From fault to TM = 1.5V
Internal pull down resistor
MIN TYP MAX UNIT
2.12
4.04 V
2.95 3.00 3.05 V
100 µA
10
mV/°C
120 200 mV
50 pF
10
µs
0
V
25 40 50 kΩ
Reserved: RSV
Reserved for factory use. No connection should be made to this pin.
BCM® Bus Converter
Page 6 of 20
Rev 1.8
08/2016
vicorpower.com
800 927.9474