Not Recommended for New Designs
B048x096y24A
3.0 SIGNAL CHARACTERISTICS
Specifications apply over all line and load conditions unless otherwise noted; Boldface specifications apply over the temperature
range of -40°C < TC < 100°C (T-Grade); All other specifications are at TC = 25°C 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 5 V during normal operation. PC pin internal bias
level drops to 2.5 V during fault mode, provided VIN remains
in the valid range.
SIGNAL TYPE
STATE
ATTRIBUTE
PC voltage
SYMBOL
CONDITIONS / NOTES
MIN TYP MAX UNIT
VPC
4.7
2.0
50
5.0
3.5
5.3
5.0
V
Regular
Operation
PC available current
PC source (current)
PC resistance (internal)
PC capacitance (internal)
PC load resistance
IPC_OP
IPC_EN
RPC_INT
CPC_INT
RPC_S
TON1
mA
µA
kΩ
pF
100
150
ANALOG
OUTPUT
Standby
Internal pull down resistor
50
400
Transition
Start Up
Start Up
Section 7
1000
To permit regular operation
60
kΩ
ms
PC time to start
350
450
2.5
650
3.0
Regular
Operation
PC enable threshold
VPC_EN
2.0
1
V
Standby
PC disable duration
TPC_DIS_T Minimum time before attempting re-enable
VPC_HYSTER
s
DIGITAL
INPUT / OUPUT
PC threshold hysteresis
PC enable to VOUT time
PC disable to standby time
PC fault response time
50
100
4
mV
µs
µs
µs
TON2
TPC-DIS
TFR_PC
VIN = 48 V for at least TON1 ms
50
150
Transition
10
From fault to PC = 2 V
100
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
STATE
ATTRIBUTE
SYMBOL
CONDITIONS / NOTES MIN TYP MAX UNIT
TM voltage range
TM voltage reference
TM available current
TM gain
VTM
2.12
4.04
V
V
VTM_AMB TJ controller = 27°C
2.95 3.00 3.05
ANALOG
OUTPUT
Regular
Operation
ITM
100
µA
mV/°C
mV
pF
ATM
10
TM voltage ripple
TM capacitance (external)
TM fault response time
TM voltage
VTM_PP
CTM_EXT
TFR_TM
CTM = 0 pF, VIN = 48 V, IOUT = 25 A
120
200
50
Transition
Standby
DIGITAL
OUTPUT
(FAULT FLAG)
From fault to TM = 1.5 V
Internal pull down resistor
10
0
µs
VTM_DIS
RTM_INT
V
TM pull down (internal)
25
40
50
kΩ
RESERVED : RSV
Reserved for factory use. No connection should be made to this pin.
BCM® Bus Converter
Page 4 of 18
Rev 1.1
vicorpower.com
800 927.9474
08/2014
VICOR [ VICOR CORPORATION ]
