参数资料
型号: L6732TR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封装: LEAD FREE, HTSSOP-16
文件页数: 7/37页
文件大小: 898K
代理商: L6732TR
L6732
Device description
15/37
The L6732 can sink or source current after the soft-start phase (see Figure 9.). If an over
current is detected during the soft-start phase, the device provides a constant-current-
protection. In this way, in case of short soft-start time and/or small inductor value and/or high
output capacitors value and so, in case of high ripple current during the soft-start, the
converter can start in any case, limiting the current (see section 4.6 monitoring and
protections) but not entering in HICCUP mode.
During normal operation, if any under-voltage is detected on one of the two supplies, the SS
pin is internally shorted to GND and so the SS capacitor is rapidly discharged.
Figure 8.
Start-up with pre-bias
Figure 9.
Inductor current during and after soft-start
VSS
IL
VOUT
LGate
VOUT
IL
VSS
VCC
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