- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄32287 > L6740L (STMICROELECTRONICS) SPECIALTY ANALOG CIRCUIT, PQFP48 PDF資料下載
參數(shù)資料
| 型號： | L6740L |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, HTQFP-48 |
| 文件頁數(shù)： | 33/44頁 |
| 文件大?。?/td> | 755K |
| 代理商： | L6740L |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁當(dāng)前第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
L6740L
LTB Technology
10
LTB Technology
LTB Technology further enhances the performances of dual-edge asynchronous systems
by reducing the system latencies and immediately turning ON all the phases to provide the
correct amount of energy to the load. By properly designing the LTB network as well as the
LTB gain, the undershoot and the ring-back can be minimized also optimizing the output
capacitors count. LTB Technology applies only to the CORE section.
LTB Technology monitors the output voltage through a dedicated pin detecting Load-
Transients with selected dV/dt, it cancels the interleaved phase-shift, turning-on
simultaneously all phases. it then implements a parallel, independent loop that reacts to
load-transients bypassing E/A latencies.
LTB Technology control loop is reported in Figure 18.
Figure 18.
LTB Technology control loop (CORE section)
The LTB detector is able to detect output load transients by coupling the output voltage
through an RLTB - CLTB network. After detecting a load transient, the LTB Ramp is reset and
then compared with the COMP pin level. The resulting duty-cycle programmed is then OR-
ed with the PWMx signal of each phase by-passing the main control loop. All the phases will
then be turned-on together and the EA latencies results bypassed as well.
Sensitivity of the load transient detector and the gain of the LTB Ramp can be programmed
in order to control precisely both the undershoot and the ring-back.
●
Detector design. RLTB - CLTB is design according to the output voltage deviation dVOUT
which is desired the controller to be sensitive as follow:
Ref
FB
COMP
VSEN
FBG
R
F
C
F
R
FB
DROOP
PWM
L/N
ESR
CO
R
O
d VCOMP
VOUT
ZF(s)
ZFB(s)
VID
V
COMP
C
H
C
FB
LT
B
I DR
OOP
Monitor
RLTB
CLTB
PWM_BOOST
LTB Ramp
LTB
LT Detect
R
LTB
dV
OUT
25
μA
------------------
=
C
LTB
1
2
π NR
LTB
F
SW
--------------------------------------------------
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L9705D013TR | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| L9953LXPTR | SPECIALTY CONSUMER CIRCUIT, PDSO36 |
| L9953LXP | SPECIALTY CONSUMER CIRCUIT, PDSO36 |
| LA1177 | 1-BAND, AUDIO TUNER, PSIP9 |
| LA1178M | 1-BAND, AUDIO TUNER, PDSO10 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6740LTR | 功能描述:DC/DC 開關(guān)控制器 Hybrid 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 |
| L6741 | 功能描述:功率驅(qū)動器IC SnglPphase Dual MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6741TR | 功能描述:功率驅(qū)動器IC SnglPphase Dual MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6743 | 功能描述:功率驅(qū)動器IC SnglPphase Dual MOSFET Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6743_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High current MOSFET driver |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。