參數(shù)資料
型號(hào)： PM6686
廠商： STMICROELECTRONICS
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, QCC32
封裝： 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32
文件頁(yè)數(shù)： 35/50頁(yè)
文件大?。?/td> 1066K
代理商： PM6686
Application information
PM6686
40/50
Doc ID 15281 Rev 4
Finally the output capacitor choice deeply impacts on the load transient response. Below
there is a list of some capacitor manufacturers.
Output capacitor manufacturer
10.1.4
MOSFET
Logic-level MOSFETs are recommended, since low-side and high-side gate drivers are
powered by PVCC. Their breakdown voltage (VBRDSS) must be higher than the maximum
input voltage.
In notebook applications, power management efficiency is a high level requirement. The
power dissipation on the power switches becomes an important factor in switching
selections. Losses of high-side and low-side MOSFETs depend on their working conditions.
The power dissipation of the high-side MOSFET is given by:
Equation 14
Maximum conduction losses are approximately:
Equation 15
Where RDS(on) is the drain-source on resistance of the high-side MOSFET.
Switching losses are approximately:
Equation 16
Where ton and toff are the switching times of the turn off and turn off phases of the
MOSFETs.
As general rule, high-side MOSFETs with low gate charge are recommended, in order to
minimize driver losses.
Below there is a list of possible choices for the high-side MOSFETs.
Table 16.
Input capacitor manufacturer
Manufacturer
Series
Capacitor value (F)
Rated voltage (V)
E
SR max (m)
SANYO
POSCAP TPB
150 to 330
2.5 to 6.3
35 to 65
SANYO
POSCAP TPF
150 to 470
2.5 to 6.3
7 to 15
switching
conduction
DHighSide
P
+
=
2
LOAD
min
IN
OUT
DSon
conduction
(max)
I
V
R
P
×
=
2
f
t
)
2
I
(max)
I
(
V
2
f
t
)
2
I
(max)
I
(
V
P
sw
off
L
LOAD
IN
sw
on
L
LOAD
IN
switching
×
Δ
+
×
+
×
Δ
×
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PM6686TR 功能描述:DC/DC 開(kāi)關(guān)控制器 Step-down Controller w/adj. voltages-dual RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
PM6-6F-L 功能描述:端子 Metric Fork Terminal non-insulated, 4.0 RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點(diǎn)電鍍:Tin over Nickel 觸點(diǎn)材料:Beryllium Copper, Phosphor Bronze 端接類(lèi)型:Crimp
PM6-6R-D 制造商:Panduit Corp 功能描述:
PM6-6R-L 功能描述:端子 Metric Ring Terminal non-insulated, 2.5 RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點(diǎn)電鍍:Tin over Nickel 觸點(diǎn)材料:Beryllium Copper, Phosphor Bronze 端接類(lèi)型:Crimp
PM6-6R-X 功能描述:端子 Metric Ring Terminal non-insulated, 2.5 RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點(diǎn)電鍍:Tin over Nickel 觸點(diǎn)材料:Beryllium Copper, Phosphor Bronze 端接類(lèi)型:Crimp
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