參數(shù)資料
型號： L6730TR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
封裝： HTSSOP-20
文件頁數(shù)： 52/52頁
文件大小： 1569K
代理商： L6730TR
L6730 - L6730B
Pin connections and functions
Doc ID 11938 Rev 3
9/52
4
TMASK
The user can select two different values for the leading edge blanking
time on the peak overcurrent protection by connecting this pin to VCCDR or
GND. The device captures the analog value present at this pin at the
start-up when VCC meets the UVLO threshold.
5GND
All the internal references are referenced to this pin. Connect to the PCB
signal ground.
6FB
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.
7COMP
This pin is connected to the error amplifier output and 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 10mA
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:
VEAREF from 0% to 80% of VCCDR -> external reference
VEAREF from 80% to 95% of VCCDR -> VREF=1.2V
VEAREF from 95% to 100% of VCCDR -> VREF=0.6V
An internal clamp limits the maximum VEAREF at 2.5V (typ.). The device
captures the analog value present at this pin at the start-up when VCC
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 VCCDR (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 4.
Pin connection (continued)
Pin n.
Name
Description
)
(
10
88
.
9
400
6
Ω
+
=
K
R
KHz
Fsw
OSC
)
(
10
01
.
3
400
7
Ω
=
K
R
KHz
Fsw
OSC
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相關代理商/技術參數(shù)
參數(shù)描述
L6731B 功能描述:開關變換器、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 開關頻率:1 MHz 工作溫度范圍: 安裝風格: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
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