參數(shù)資料
型號： L6730DTR
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)： 8/50頁
文件大?。?/td> 1394K
代理商： L6730DTR
Pin connections and functions
L6730C - L6730D
8/50
4
T
MASK
By connecting this pin to V
CCDR
or ground it is possible to select two different
values for the leading edge blanking time on the peak-over-current-protection.
The device captures the analog value present at this pin at the start-up when
V
CC
meets the UVLO threshold.
5
GND
All the internal references are referred to this pin.
6
FB
This pin is connected to the error amplifier inverting input. Connect it to Vout
through the compensation network. This pin is also used to sense the output
voltage in order to manage the over voltage conditions and the PGood signal.
7
COMP
This pin is connected to the error amplifier output and is used to compensate
the voltage control loop.
8
SS/INH
The soft-start time is programmed connecting an external capacitor from this
pin and GND. The internal current generator forces a current of 10
μ
A through
the capacitor. This pin is also used to inhibit the device: when the voltage at
this pin is lower than 0.5V the device is disabled.
9
EAREF
It is possible to set two internal references 0.6V / 1.2V or provide an external
reference from 0V to 2.5V:
–
V
EAREF
from 0% to 80% of V
CCDR
>
External Reference
–
V
EAREF
from 80% to 95% of V
CCDR
>
V
REF
=1.2V
–
V
EAREF
from 95% to 100% of V
CCDR
>
V
REF
=0.6V
An internal clamp limits the maximum V
EAREF
at 2.5V (typ.). The device
captures the analog value present at this pin at the start-up when V
CC
meets
the UVLO threshold.
10
OSC
Connecting an external resistor from this pin to GND, the external frequency
can be increased according with the following equation:
Connecting a resistor from this pin to V
CCDR
(5V), the switching frequency can
be lowered according with the following equation:
If the pin is left open, the switching frequency is 400 KHz. Normally this pin is at
a voltage of 1.2V. In OVP the pin is pulled up to 4.5V (only in latched mode).
Don’t connect a capacitor from this pin to GND.
Table 3.
Pins connection
)
(
10
K
88
.
R
400
6
+
=
KHz
Fsw
OSC
)
(
10
K
01
.
R
400
7
=
KHz
Fsw
OSC
相關(guān)PDF資料
PDF描述
L6730 Adjustable step-down controller with synchronous rectification
L6730B Adjustable step-down controller with synchronous rectification
L6730BTR Adjustable step-down controller with synchronous rectification
L6730TR Adjustable step-down controller with synchronous rectification
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)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(yīng)商設(shè)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(fēng)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(fēng)格: 封裝 / 箱體:CPAK
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