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參數(shù)資料
| 型號： | L6731B |
| 廠商： | 意法半導體 |
| 英文描述： | Transistor; Type: Amplifiers/Bipolar; VCEO (V): 25; Ic (A): 1; Pc (W): 0.8; hFE: 85 to 330; VCE (sat) (V) max: 0.5; Package: TO-92Mod |
| 中文描述： | 可調(diào)式降壓同步整流專用的DDR控制器內(nèi)存 |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 311K |
| 代理商： | L6731B |
L6731B
Pin connections and functions
7/24
8
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 100μA (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.
9
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 100μA 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:
10
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.
11
HGATE
This pin is connected to the high-side MOSFET(s) gate.
12
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).
13
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.
14
LGATE
This pin is connected to the low-side MOSFET(s) gate.
15
V
CCDR
5V internally regulated voltage. It is used to supply the internal drivers. Filter it to
ground with at least 1μF ceramic cap.
16
V
CC
Supply voltage pin. The operative supply voltage range is from 4.5V to 14V.
Table 3.
Pin functions
I
VALLEY
I
2
OCL
R
DSONLS
--------------------I
=
I
PEAK
I
R
DSONHS
OCH
-------------------R
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6731BTR | Transistor; Type: Amplifiers/Bipolar; VCEO (V): -25; Ic (A): -1; Pc (W): 0.8; hFE: 85 to 330; VCE (sat) (V) max: -0.5; Package: TO-92Mod |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6731BTR | 功能描述:IC CTRLR ADJ STEP DOWN 16-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| L6731D | 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 安裝風格: 封裝 / 箱體:CPAK |
| L6731DTR | 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 安裝風格: 封裝 / 箱體:CPAK |
| L6732 | 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 安裝風格: 封裝 / 箱體:CPAK |
| L6732_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
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