參數(shù)資料
型號: X4005M8-1.8
廠商: INTERSIL CORP
元件分類: 電源管理
英文描述: RTC Module With CPU Supervisor
中文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封裝: MSOP-8
文件頁數(shù): 4/17頁
文件大?。?/td> 266K
代理商: X4005M8-1.8
4
FN8113.0
March 15, 2005
To set the new V
TRIP
voltage, apply the desired V
TRIP
threshold voltage to the V
CC
pin and tie the WP pin to
the programming voltage V
P
. Then write data 00hto
address 01h. The stop bit following a valid write opera-
tion initiates the V
TRIP
programing sequence. Bring WP
LOW to complete the operation.
Resetting the V
TRIP
Voltage
This procedure is used to set the V
TRIP
to a “native”
voltage level. For example, if the current V
TRIP
is 4.4V
and the new V
TRIP
must be 4.0V, then the V
TRIP
must
be reset. When V
TRIP
is reset, the new V
TRIP
is some-
thing less than 1.7V. This procedure must be used to
set the voltage to a lower value.
To reset the new V
TRIP
voltage, apply the desired
V
TRIP
threshold voltage to the V
CC
pin and tie the WP
pin to the programming voltage V
P
. Then write 00h to
address 03h. The stop bit of a valid write operation ini-
tiates the V
TRIP
programming sequence. Bring WP
LOW to complete the operation.
Figure 2. Reset V
TRIP
Level Sequence (V
CC
> 3V. WP = 15-18V)
Figure 3. Sample V
TRIP
Reset Circuit
0
1
2 3
4
5 6
7
SCL
SDA
A0h
0
1
2 3
4
5 6
7
03h
WP
V
P
= 15 - 18V
0
1
2 3
4
5 6
7
00h
1
2
3
4
8
7
6
5
X4003/05
V
TRIP
Adj.
V
P
RESET/
RESET
4.7K
SDA
SCL
μC
Adjust
Run
X4003, X4005
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