TC78B002FTG 查看數據表（PDF） - Toshiba

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TC78B002FTG

TOSHIBA CMOS Integrated Circuit Silicon Monolithic

Toshiba 

TC78B002FTG

<PWM change during soft switching>

Soft switching after conducting phase switch:

It changes gradually from 4% to 100% of output PWM duty determined by the voltage of VSP pin. Its number

of steps is 16 in maximum.

Soft switching before conducting phase switch:

It changes gradually from 100% to 4% of output PWM duty determined by the voltage of VSP pin. Its number

of steps is 16 in maximum.

In case the term of soft switching operation is 22.5° or less, number of steps is less than16 in the soft switching

term.

The relation of steps of soft switching and the output PWM duty ratio is shown below.

Step

1

2

3

4

5

6

Output ratio (%)

4

14

25

34

42

52

Step

7

8

9

10

11

12

Output ratio (%)

59

67

74

80

86

91

Step

13

14

15

16

Output ratio (%)

94

97

99

100

Term of soft switching operation

19

2013-03-19

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