參數(shù)資料
型號： L6730B
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?。?/td> 1569K
代理商： L6730B
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
相關(guān)PDF資料
PDF描述
L6730TR 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20
L6732CTR 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6732 SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6732TR SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6788ATR 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6730BTR 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
L6730C 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)
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(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)
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