Data Sheet G14309EJ2V0DS00

14

µµµµPC1909

For the dCT level shift amount and the OUT1 and OUT2 dead time settings, refer to 4.4 Dead Time Setting.

The relationship between the FB, DTC1, and DTC2 voltages in each operating state and the pins that determine the duty

of OUT1 and OUT2 are shown in Table 3-1 below. For the duty settings, refer to 4.5 Duty Settings.

Table 3-1. Relationship Between Pins That Determine Duty During Steady Operation

Operating Status

Voltage Relationship

Pin That Determines

OUT1 Duty

Pin That Determines

OUT2 Duty

Steady operation 1

(rated status)

T3

DTC2

< FB < DTC1

FB

FB

Steady operation 2

(heavy load, low input)

T4

DTC2

< DTC1 < FB

DTC1

DTC1

Steady operation 3

(light load, high input)

T5

FB

< DTC2 < DTC1

FB

DTC2