MB3883_02 datasheet(6/40 Pages) FUJITSU | 6-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down

6 page

MB3883

(Continued)

Pin No.

Symbol

I/O

Descriptions

OSC



Triangular wave frequency setting resistor connection pin.



Triangular wave frequency setting capacitor connection pin.

Triangular wave oscillator regulator output pin.

Control

SWOUT

Output switch control circuit output pin.

SWIN

Output switch control circuit input pin.

CTL

Power supply, CH6 control pin.

“H” level : Power supply CH6 operating mode

“L” level : Standby mode

CTL1, 2

CH1, CH2 control pin.

When CTL1, 2 pin

= “H” level

“H” level : CH1, CH2 operating mode

“L” level : CH1, CH2 OFF mode

CTL3

CH3 control pin.

When CTL3 pin

= “H” level

“H” level : CH3 operating mode

“L” level : CH3 OFF mode

CTL4

CH4 control pin.

When CTL4 pin

= “H” level

“H” level : CH4 operating mode

“L” level : CH4 OFF mode

CTL5

CH5 control pin.

When CTL5 pin

= “H” level

“H” level : CH5 operating mode

“L” level : CH5 OFF mode

CSCP



Short protection circuit capacitor connection pin.



CH1to CH5 soft start circuit capacitor connection pin.

Power

VCC



Reference voltage and control circuit power supply pin.

VCC (O)



Output circuit power supply pin.

VREF

Reference voltage output pin.

GND



Ground pin.

GND (O)



Output circuit ground pin.

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