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參數(shù)資料
| 型號： | L6714 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64 |
| 封裝： | 10 X 10 MM, LEAD FREE, TQFP-64 |
| 文件頁數(shù)： | 60/70頁 |
| 文件大?。?/td> | 694K |
| 代理商： | L6714 |
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L6714
Tolerance band (TOB) definition
63/70
23.3
Time constant matching error tolerance (TOB TCMatching)
●
Inductance and capacitance Tolerance (kL, kC). Variations in the inductance value and
in the value of the capacitor used for the Time Constant Matching causes over/under
shoots after a load transient appliance. This impacts the output voltage and then the
TOB. Since all the sense elements results to be in parallel, the error related to the time
constant mismatch has to be divided by the number of phases (N).
●
Capacitance Temperature Variations (kCt). The capacitor used for time constant
matching also vary with temperature (
TC) impacting on the output voltage transients
ad before. Since all the sense elements results to be in parallel, the error related to the
time constant mismatch has to be divided by the number of phases (N).
●
All these parameters impact the Dynamic AVP, so they must be weighted on the
maximum dynamic voltage swing (Idyn). Total error due to time constant mismatch
results:
23.4
Temperature measurement error (VTC)
Error in the measured temperature (for thermal compensation) impacts on the output
regulated voltage since the correction form the compensation circuit is not what required to
keep the output voltage flat.
The measurement error (
εTemp) must be multiplied by the copper temp coefficient (α) and
compared with the sensing resistance (RSENSE): this percentage affects the AVP voltage as
follow:
TOB
TCMatching
V
AVPDyn
2
k
L
2
k
C
2
k
Ct
TC
()
++
N
---------------------------------------------------------
=
V
TC
αε
Temp
R
SENSE
--------------------------
V
AVP
=
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| L6714TR | 功能描述:功率驅(qū)動器IC 4 Phase Controller 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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| L6717 | 制造商:STMicroelectronics 功能描述:High-Efficiency Hybrid AM2r2 Controller 48-Pin VFQFPN Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717A | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
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