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參數(shù)資料
| 型號： | MB3802 |
| 廠商： | FUJITSU LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Power Management Switch(電源管理開關(guān)) |
| 中文描述： | POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | PLASTIC, SOP-16 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 104K |
| 代理商： | MB3802 |
2
MB3802
I
PIN ASSIGNMENT
I
PIN DESCRIPTION (SCSI Interface)
Pin No.
16
Pin symbol
VIN
Description
A
These pins switch ON at High level and OFF at Low level. They
serve as power-supply pins for the DC/DC converter to generate
the switch gate voltage.
Switch Input pins:
Two common pins are assigned to SWIN
SWIN
B
. They serve as power-supply pins for the switch-OFF circuit
which starts at 1.5V min.
Switch output pins:
Two common pins are assigned to SWOUT
and SWOUT
B
. When DCGA and DCGB are High level, the load-
discharge circuit starts discharge via these pins.
SWOUT
A
/SWOUT
B
-side discharge control pins:
used to discharge from the load-side capacitor at switch OFF.
Connect them to GND when discharge is not required.
Switch-ON/OFF control pins:
The ON/OFF time can be delayed
by connecting an external capacitor. Both times are delayed about
three fold by installing a 500-pF capacitor between these pins and
GND. Leave these pins open when they are not used. 10V may be
generated when these pins are open. To keep these pins at high
impedance, take care to mount the device so that no current leaks
(less than 0.1
μ
A).
Ground pins for input threshold reference voltage and load
discharge:
When two switching circuits are used, ground both
GND pins.
9
VIN
B
3, 4
SWIN
A
A
and
5, 6
SWIN
B
13, 14
SWOUT
A
A
11, 12
SWOUT
B
2
DCG
A
These pins are
7
DCG
B
15
DLY
A
10
DLY
B
1
GND
A
8
GND
B
(TOP VIEW)
(FPT-16P-M04)
MB3802
1
2
3
4
5
6
7
8
VIN
A
DLY
A
SWOUT
A
SWOUT
A
SWOUT
B
SWOUT
B
DLY
B
VIN
B
16
15
14
13
12
11
10
9
GND
A
DCG
A
SWIN
A
SWIN
A
SWIN
B
SWIN
B
DCG
B
GND
B
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