HA16114FP Renesas, HA16114FP Datasheet - Page 20

• Manufacturer Part Number: HA16114FP
• Description: Switching Regulator
• Manufacturer: Renesas

HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
7.4 Examples of Intermittent Mode Timing (calculated values)
Rev.1, Dec. 2000, page 18 of 38
(2) T
Example:
T
Here, coefficient
T
from section 7.3 (2) previously.
OFF
OFF
2
= ln
(1) T
= T
T
Here, coefficient
T
from section 7.3 (1) previously.
Example: If C
V
ON
ON
1
V
2
IN
IN
= 0.69 ×
× C
If C
R
then T
− 2V
= T
A
− V
ON/
= 390 kΩ, V
ON/
1
BE
BE
× C
OFF
OFF
OFF
R
of the current limiter is 75%,
then T
Figure 7.4 Examples of Intermittent Mode Timing (1)
Figure 7.5 Examples of Intermittent Mode Timing (2)
1 − On duty
B
ON/
× (R
= 2.2 µF, R
= 2.2 kΩ, and the on duty
ON/
= 55 ms.
OFF
ON
1
OFF
A
IN
+ R
× R
= 13 ms.
= 12 V,
= 2.2 µF,
B
B
)
B
= 2.2 kΩ,
T
0.05
2
0.1
0
0
T
1
8
6
4
2
0
0
10
20
(PWM) On duty (%)
V
IN
(V)
40
20
60
80
30
100
40