參數(shù)資料
型號: L6730
廠商: 意法半導(dǎo)體
英文描述: Adjustable step-down controller with synchronous rectification
中文描述: 可調(diào)式降壓同步整流控制器
文件頁數(shù): 25/52頁
文件大小: 1370K
代理商: L6730
L6730 - L6730B
Device description
25/52
Using the L6730B there is the possibility to set the constant-current-protection also after the
soft-start. The following figures show the behaviour of the L6730B during an overcurrent event.
Figure 19.
shows the intervention of the peak OCP: the high-side MOSFET(s) is turned-off
when the current exceeds the OCP threshold. In this way the duty-cycle is reduced, the V
OUT
is
reduced and so the maximum current can be fixed even if the output current is escalating.
Figure 20.
shows the limit of this protection: the on-time can be reduced only to the masking
time and, if the output current continues to increase, the maximum current can increase too.
Notice how the Vout remains constant even if the output current increases because the on-time
cannot be reduced anymore.
Figure 19. Peak overcurrent-protection in constant-current-protection (L6730B).
Figure 20. Peak OCP in case of heavy overcurrent (L6730B).
V
OUT
T
ON
I
OUT
I
L
Peak th
V
OUT
I
L
I
OUT
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PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6730_09 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6730B 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6730BTR 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6730C 功能描述:IC REG CTRLR BUCK PWM VM 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP(0.300",7.62mm) 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF)
L6730CQ 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification