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| 型号： | LA5681T |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 520 kHz SWITCHING FREQ-MAX, PQFP48 |
| 封装： | 7 X 7 MM, TQFP-48 |
| 文件页数： | 8/19页 |
| 文件大小： | 345K |
| 代理商： | LA5681T |
LA5681T
No.A0624-16/19
Method to set the soft start time
For CH1 (similar in the case of CH2 to 6)
The CH1 soft start time is set on the basis of the capacitance connected between CSOFT1 to 6 pins and GND.
tSCP = -CSOFT × RSF 1n(1-
VB
RSF × ISF
) [s]
* The equation applies to the case of CH1. The same applies to CH2 to 6.
VCSOFT
[V
]
VB = 0.5[V]
VSOFT
ISF = 4.0μA
RSF
200k
Ω
CSOFT
VB = 0.5V
IN-
Soft start time tSOFT [S]
Set output voltage (VO) constant
Charge
Set output voltage (VO)
VCC
CSOFT
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