参数资料
型号: L6711TR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 2 A SWITCHING CONTROLLER, 178 kHz SWITCHING FREQ-MAX, PQFP48
封装: 7 X 7 MM, 1 MM HEIGHT, TQFP-48
文件页数: 26/50页
文件大小: 679K
代理商: L6711TR
Obsolete
Product(s)
- Obsolete
Product(s)
Soft start
L6711
32/50
13
Soft start
During soft start, a ramp is generated increasing the loop reference from 0V to the final
value programmed by VID in 2048 clock periods as shown in
Figure 15. Once the soft start begins, the reference is increased: upper and lower MOS
begin to switch and the output voltage starts to increase with closed loop regulation. At the
end of the digital soft start, the SS_END signal is then driven high.
The Under Voltage comparator is enabled when the reference voltage reaches 0.6V while
Over Voltage Comparator is always enabled during soft start with a threshold equal to the
115% of the programmed reference or the threshold programmed by ROVP (see relevant
section).
Figure 15.
Soft start
VCC=VCCDR
VLGATEx
SS_END
VOUT
t
Turn ON threshold
2048 Clock Cycles
(CH1=VOUT; CH2=LGATEx; CH3=SS_END)
相关PDF资料
PDF描述
L6711 2 A SWITCHING CONTROLLER, 178 kHz SWITCHING FREQ-MAX, PQFP48
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