參數(shù)資料
型號(hào)： PM6686
廠商： STMICROELECTRONICS
元件分類： 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
文件頁數(shù)： 20/50頁
文件大小： 1066K
代理商： PM6686
PM6686
Device description
Doc ID 15281 Rev 4
27/50
The COT architecture uses a minimum off-time (TOFFMIN) to allow inductor valley current
sense on the synchronous switch and to allow the charge of the bootstrap capacitor. A
minimum on-time is also introduced to assure the start-up sequence.
An adaptive anti-cross conduction algorithm avoids current paths between VIN and GND
during switching transition.
The PM6686 has three different operation modes selectable with SKIP pin: forced PWM
(PWM), pulse SKIP (SKIP) and non audible pulse SKIP (NA SKIP). The following
paragraphs explain in details the different features of these operation modes.
Figure 46.
Constant on time block diagram
Table 9.
Operative mode configurations
Control pin
connected to
Operation mode
SKIP
VCC
PWM
GND
SKIP
VREF2 or floating
NA SKIP
BOOT
Q
SET
CLR
S
R
LS Driver
HGAT E
PH ASE
LGATE
PGND
Level
Shifter
HS Driver
Q
SET
CLR
S
R
Z.C.
Comparator
-
Toff min
Ton
generator
PWM
Comparator
OU T
Voltage
Reference
ILIM
+
-
VIN
+
-
+
PVCC
PHASE
1/10
0,8V
-
+
-
+
0,5V
0,25V
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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
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 端接類型:Crimp
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