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參數(shù)資料
| 型號： | L6730CQTR |
| 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)： | 9/50頁 |
| 文件大?。?/td> | 1394K |
| 代理商： | L6730CQTR |
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L6730C - L6730D
Pin connections and functions
9/50
11
OCL
A resistor connected from this pin to ground sets the valley- current-limit. The
valley current is sensed through the low-side MOSFET(s). The internal current
generator sources a current of 100
μ
A (I
OCL
) from this pin to ground through the
external resistor (R
OCL
). The over-current threshold is given by the following
equation:
Connecting a capacitor from this pin to GND helps in reducing the noise
injected from V
CC
to the device, but can be a low impedance path for the high-
frequency noise related to the GND. Connect a capacitor only to a “clean”
GND.
12
OCH
A resistor connected from this pin and the high-side MOSFET(s) drain sets the
peak-current-limit. The peak current is sensed through the high-side
MOSFET(s). The internal 100
μ
A current generator (I
OCH
) sinks a current from
the drain through the external resistor (R
OCH
). The over-current threshold is
given by the following equation:
13
PHASE
This pin is connected to the source of the high-side MOSFET(s) and provides
the return path for the high-side driver. This pin monitors the drop across both
the upper and lower MOSFET(s) for the current limit together with OCH and
OCL.
14
HGATE
This pin is connected to the high-side MOSFET(s) gate.
15
BOOT
Through this pin is supplied the high-side driver. Connect a capacitor from this
pin to the PHASE pin and a diode from V
CCDR
to this pin (cathode versus
BOOT).
16
PGND
This pin has to be connected closely to the low-side MOSFET(s) source in
order to reduce the noise injection into the device.
17
LGATE
This pin is connected to the low-side MOSFET(s) gate.
18
V
CCDR
5V internally regulated voltage. It is used to supply the internal drivers and as a
voltage reference. Filter it to ground with at least 1μF ceramic cap.
19
V
CC
Supply voltage pin. The operative supply voltage range is from 4.5V to 14V.
20
PGOOD
This pin is an open collector output and it is pulled low if the output voltage is
not within the specified thresholds (90%-110%). If not used it may be left
floating. Pull-up this pin to V
CCDR
with a 10K resistor to obtain a logical signal.
Table 3.
Pins connection
DSonLS
R
2
OCL
R
OCL
I
VALLEY
I
=
DSonHS
R
OCH
R
OCH
I
PEAK
I
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| L6730B | Adjustable step-down controller with synchronous rectification |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(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) |
| 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(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) |
| 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(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) |
| L6730TR | 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 |
| L6731B | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Adj. Step-Down w/ Synch Rectification RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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