参数资料
型号: L6730
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
封装: HTSSOP-20
文件页数: 20/52页
文件大小: 1569K
代理商: L6730
L6730 - L6730B
Device description
Doc ID 11938 Rev 3
27/52
Working with a 12 V BUS, setting the UVLO at 8.6 V can be very helpful to limit the input
current in case of BUS fall.
5.9
Adjustable masking time
By connecting the masking time pin to VCCDR or GND it is possible to select two different
values for the peak current protection leading edge blanking time. This is useful to avoid any
false OCP trigger due to spikes and oscillations generated at the turn-on of the high-side
MOSFET(s). The amount of this noise depends very much on the layout, MOSFETs, free-
wheeling diode, switched current, and input voltage.
When good layout and medium current are used, the minimum masking time can be
chosen, while in case of higher noise, it is better to select the maximum masking time. By
connecting the tMASK pin to VCCDR the masking time is about 400 ns, while connecting it to
GND results in about 260 ns masking time.
5.10
Multifunction pin (S/O/U L6730) (CC/O/U L6730B)
With this pin it is possible:
To enable disable the sink mode current capability (L6730) or the constant current
protection (L6730B) at the end of the soft-start
To enable or disable the latch-mode for the OVP
To set the UVLO threshold for 5 V BUS and 12 V busses
Figure 22.
Valley OCP (L6730B)
VOUT
IL
TOFF
Valley th
相关PDF资料
PDF描述
L6730B 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6730TR 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6732CTR 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6732 SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6732TR SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
相关代理商/技术参数
参数描述
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