參數(shù)資料
型號: L6732CTR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝: HTSSOP-16
文件頁數(shù): 5/32頁
文件大?。?/td> 905K
代理商: L6732CTR
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L6732C
5 Device description
13/32
5.5
Error amplifier
5.6
Soft start
When both VCC and VIN are above their turn-ON thresholds (VIN is monitored by the OCH pin)
the start-up phase takes place. Otherwise the SS pin is internally shorted to GND. At start-up, a
ramp is generated charging the external capacitor CSS with an internal current generator. The
initial value for this current is 35A and charges the capacitor up to 0.5V. After that it becomes
10A until the final charge value of approximately 4V (see Figure 6.). The reference of the error
amplifier is clamped with this voltage (VSS) until it reaches the programmed value. The Device
can always sink current
Figure 5.
Error Amplifier Reference
Figure 6.
Device start-up: Voltage at the SS pin.
VCC
VIN
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