PRELIMINARY
V•I Chip Bus Converter Module
BCM
V•I Chip – BCM
Bus Converter Module
TM
B352F110T24
• 352 V to 11.0 V V•I Chip Converter
• 240 Watt (360 Watt for 1 ms)
• High density – up to 876 W/in
3
• Small footprint – 210 W/in
2
• Low weight – 0.5 oz (14 g)
• ZVS/ZCS isolated sine
amplitude converter
• Typical efficiency 95%
• 125°C operation
• <1 µs transient response
• >2.6 million hours MTBF
• No output filtering required
©
Vin = 330 - 365 V
Vout = 10.3 - 11.4 V
Iout = 21.8 A
K = 1/32
Rout = 15.0 mΩ max
Actual size
Product Description
The V•I Chip Bus Converter Module (BCM) is a high
efficiency (>95%), narrow input range Sine Amplitude
Converter (SAC) operating from a 330 to 365 Vdc
primary bus to deliver an isolated low voltage secondary.
The off-line BCM provides an isolated 10.3 -11.4 V
distribution bus and is ideal for use in silver boxes and
PFC front ends. Due to the fast response time and low
noise of the BCM, the need for limited life aluminum
electrolytic or tantalum capacitors at the input of POL
converters is reduced—or eliminated—resulting in
savings of board area, materials and total system cost.
The BCM achieves a power density of 876 W/in
3
in
a V•I Chip package compatible with standard pick-and-
place and surface mount assembly processes. The V•I
Chip package provides flexible thermal management
through its low Junction-to-Case and Junction-to-Board
thermal resistance. Owing to its high conversion
efficiency and safe operating temperature range, the
BCM does not require a discrete heat sink in typical
applications. Low junction to case and junction to lead
thermal impedances assure low junction temperatures
and long life in the harshest environments.
Absolute Maximum Ratings
Parameter
+In to -In
+In to -In
PC to -In
+Out to -Out
Isolation voltage
Output current
Peak output current
Output power
Peak output power
Case temperature
Operating junction temperature
(1)
Storage temperature
Values
-1.0 to 400
500
-0.3 to 7.0
-0.5 to 16.0
4,242
24.1
32.7
240
360
208
-40 to 125
-55 to 125
-40 to 150
-65 to 150
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
A
A
W
W
°C
°C
°C
°C
°C
Notes
For 100 ms
Input to Output
Continuous
For 1 ms
Continuous
For 1 ms
During reflow
T - Grade
M - Grade
T - Grade
M - Grade
Note:
(1) The referenced junction is defined as the semiconductor having the highest temperature.
This temperature is monitored by a shutdown comparator.
Part Numbering
B
Bus Converter
Module
352
Input Voltage
Designator
F
110
Output Voltage
Designator
(=V
OUT
x10)
T
24
Output Power
Designator
(=P
OUT
/10)
Configuration
(Figure 15)
Product Grade Temperatures (°C)
Grade
Storage
Operating
T
-40 to150 -40 to125
M
-65 to150 -55 to125
vicorpower.com
800-735-6200
V•I Chip Bus Converter Module
B352F110T24
Rev. 1.1
Page 1 of 13
VICOR [ VICOR CORPORATION ]
