MB3883_02 FUJITSU [Fujitsu Component Limited.], MB3883_02 Datasheet - Page 26

• Manufacturer Part Number: MB3883_02
• Description: 6-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

26
MB3883
SETTING THE OUTPUT CURRENT
The output circuit (drive 6) is structured as illustrated below (in the output circuit diagram). As found in “Output
Current Waveform” below, the source current value of the output current waveform has a constant current setting.
Note that the source current is set by the following equation:
• Output source current
0
(VB RB)
0.6 V
Source current
Output source current (Peak)
I
Sink current
In the output circuit diagram
80 (A)
Output current waveform
Output source
current
t
33
33
Output sink current (Peak)
80 I
70 k
48
44
42
47
Output source
OUT6
RB6
GND (O)
Output sink
VCC (O)
current
current
External NPN transistor
R
B
V
B