參數(shù)資料
型號: L6730C
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): 21/50頁
文件大?。?/td> 1394K
代理商: L6730C
L6730C - L6730D
Device description
21/50
It must be taken into account that there is an electrical network between the output terminal and
the FB pin and therefore the voltage at this pin is not a perfect replica of the output voltage. If
the converter can sink current, in the most of cases the low-side will be turned-on before the
output voltage exceeds the over-voltage threshold, because the error amplifier will throw off
balance in advance. Even if the device doesn’t report an over-voltage, the behaviour is the
same, because the low-side is turned-on immediately. Instead, if the sink-mode is disabled, the
low-side will be turned-on only when the over-voltage-protection (OVP) operates and not
before, because the current can’t be reversed. In this case a delay between the output voltage
rising and the FB voltage rising can appear and the OVP can operate on late. The following two
figures show an over-voltage event in case of sink enabled and disabled. The output voltage
rises with a slope of 100mV/μs, emulating in this way the breaking of the high-side MOSFET as
an over-voltage cause.
Figure 13. OVP latched
Figure 14. OVP with sink enabled: the low-side MOSFET is turned-on in advance.
LGate
OSC
FB
V
OUT
109%
V
FB
LGate
相關(guān)PDF資料
PDF描述
L6730CQTR Adjustable step-down controller with synchronous rectification
L6730CTR Adjustable step-down controller with synchronous rectification
L6730D Adjustable step-down controller with synchronous rectification
L6730DTR Adjustable step-down controller with synchronous rectification
L6730 Adjustable step-down controller with synchronous rectification
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6730CQ 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6730CQTR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6730CTR 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:- 標準包裝: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)
L6730D 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:- 標準包裝: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)
L6730DTR 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:- 標準包裝: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)