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參數(shù)資料
| 型號(hào)： | PM6685TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, QCC32 |
| 封裝： | 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFQFPN-32 |
| 文件頁數(shù)： | 28/52頁 |
| 文件大小： | 2536K |
| 代理商： | PM6685TR |
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Monitoring and protections
PM6685
34/52
Equation 10
where fsw is the switching frequency, VIN is the input voltage, VOUT is the output voltage
and
IL is the selected inductor ripple current.
In order to prevent overtemperature working conditions, inductor must be able to provide an
RMS current greater than the maximum RMS inductor current ILRMS:
Equation 11
Where
IL(max) is the maximum ripple current:
Equation 12
If hard saturation inductors are used, the inductor saturation current should be much greater
than the maximum inductor peak current Ipeak:
Equation 13
Using soft saturation inductors it’s possible to choose inductors with saturation current limit
nearly to Ipeak.
Below there is a list of some inductor manufacturers.
Table 11.
Inductor manufacturer
Manufacturer
Series
Inductor value (uH)
RMS current (A)
Saturation current (A)
COILCRAFT
SER1360
4 to 8
6 to 8.6
7 to 12
COILCRAFT
MLC
2.2 to 4.5
13.6 to 8.8
11.5 to 17
TDK
RLF12560
2.7 to 10
7.5 to 11.5
7.5 to 14.4
IN
OUT
L
sw
OUT
IN
V
I
f
V
L
×
×
=
12
(max))
I
(
(max))
I
(
I
2
L
2
LOAD
LRMS
+
=
max
IN
OUT
sw
OUT
max
IN
L
V
L
f
V
(max)
I
×
=
2
(max)
I
(max)
I
Ipeak
L
LOAD
+
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PM6686 | 制造商:STMicroelectronics 功能描述: |
| PM6686TR | 功能描述:DC/DC 開關(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 端接類型:Crimp |
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