BCM6123XD1E5126YZZ Datasheet, PDF (12/30 Pages) Vicor Corporation – Isolated Fixed-Ratio DC-DC Converter

BCM6123xD1E5126yzz
Analog Control Signal Characteristics
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.
Temperature Monitor
• The TM pin is a standard analog I/O configured as an output from an internal µC.
• The TM pin monitors the internal temperature of the controller IC within an accuracy of ±5°C.
• µC 250kHz PWM output internally pulled high to 3.3V.
SIGNAL TYPE
STATE
Startup
ATTRIBUTE
Powertrain active to TM
time
SYMBOL
t_TM
CONDITIONS / NOTES
TM Duty Cycle
TM_PWM
TM Current
I_TM
Recommended External filtering
DIGITAL
OUTPUT
Regular
Operation
TM Capacitance (External) C_{TM_EXT} Recommended External filtering
TM Resistance (External)
R_{TM_EXT} Recommended External filtering
Specifications using recommended filter
TM Gain
A_TM
TM Voltage Reference
TM Voltage Ripple
V_{TM_AMB}
V_{TM_PP}
R_{TM_EXT} = 1kΩ, C_{TM_EXT} = 0.01µF,
V_{PRI_DC} = 380V, I_{SEC_DC} = 25.7A
T_INTERNAL ≤ 100ºC
MIN TYP MAX UNIT
100
µs
18.18
68.18 %
4 mA
0.01
µF
1
kΩ
10
mV / °C
1.27
V
28
mV
40
Enable / Disable Control
• The EN pin is a standard analog I/O configured as an input to an internal µC.
• It is internally pulled high to 3.3V.
• When held low the BCM internal bias will be disabled and the powertrain will be inactive.
• In an array of BCMs, EN pins should be interconnected to synchronize startup.
SIGNAL TYPE
ANALOG
INPUT
STATE
Startup
Regular
Operation
ATTRIBUTE
EN to Powertrain
active time
EN Voltage Threshold
EN Resistance (Internal)
EN Disable Threshold
SYMBOL
CONDITIONS / NOTES
t_{EN_START}
V_{PRI_DC} > V_{PRI_UVLO+}, EN held low both
conditions satisfied for T > t_{PRI_UVLO+_DELAY}
V_{EN_TH}
R_{EN_INT}
Internal pull up resistor
V_{EN_DISABLE_TH}
MIN TYP MAX UNIT
250
µs
2.3
V
1.5
kΩ
1
V
BCM^® Bus Converter
Page 12 of 30
Rev 1.1
01/2017
vicorpower.com
800 927.9474