MB39A123 Datasheet, PDF (18/44 Pages) Fujitsu Component Limited. – 6 ch DC/DC Converter IC with Synchronous Rectification

MB39A123
2. Channel Control Function
Use the CTL terminal (pin 1), CTL1 terminal (pin 2), CTL2 terminal (pin 3), CTL3 terminal (pin 4), CTL4 terminal
(pin 5), CTL5 terminal (pin 6), and CTL6 terminal (pin 7) to set ON/OFF to the main and each channels.
ON/OFF setting conditions for each channel
CTL CTL1 CTL2 CTL3 CTL4 CTL5 CTL6 Power ch.1
L
X
X
X
X
X
X OFF OFF
H
L
L
L
L
L
L ON OFF
H
H
L
L
L
L
L ON ON
H
L
H
L
L
L
L ON OFF
H
L
L
H
L
L
L ON OFF
H
L
L
L
H
L
L ON OFF
H
L
L
L
L
H
L ON OFF
H
L
L
L
L
L
H ON OFF
H
H
H
H
H
H
H ON ON
ch.2
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ch.3
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
ch.4
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ch.5
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ch.6
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
Note : Note that current which is over standby current flows into VCC terminal when the CTL terminal is in “L” level
and one of the terminals between CTL1 to CTL6 terminals is set to “H” level.
(Refer to the following circuit)
• CTL1 to CTL6 terminals equivalent circuit
VCC 48
CTL1
∼
CTL6
ESD
protection
element
GND 10
86 kΩ
223 kΩ
200 kΩ
18