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參數(shù)資料
| 型號： | X40410S8-A |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor |
| 中文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 4/24頁 |
| 文件大?。?/td> | 363K |
| 代理商： | X40410S8-A |
4
FN8116.0
March 28, 2005
Figure 2. V
TRIPX
Set/Reset Conditions
V
TRIPX
WATCHDOG TIMER
The Watchdog Timer circuit monitors the microprocessor
activity by monitoring the SDA and SCL pins. The micro-
processor must toggle the SDA pin HIGH to LOW period-
ically, while SCL also toggles from HIGH to LOW (this is
a start bit) followed by a stop condition prior to the expira-
tion of the watchdog time out period to prevent a WDO
signal going active. The state of two nonvolatile control
bits in the Status Register determines the watchdog timer
period. The microprocessor can change these watchdog
bits by writing to the X40410/11/14/15 control register
(also refer to page 19).
Figure 3. Watchdog Restart
V1 AND V2 THRESHOLD PROGRAM PROCEDURE
(OPTIONAL)
The X40410/11/14/15is shipped with standard V1 and
V2 threshold (V
TRIP1,
V
TRIP2
) voltages. These values
will not change over normal operating and storage
conditions. However, in applications where the stan-
dard thresholds are not exactly right, or if higher preci-
sion is needed in the threshold value, the
X40410/11/14/15 trip points may be adjusted. The pro-
cedure is described below, and uses the application of
a high voltage control signal.
Setting a V
TRIPx
Voltage (x = 1, 2)
There are two procedures used to set the threshold
voltages (V
TRIPx
), depending if the threshold voltage
to be stored is higher or lower than the present value.
For example, if the present V
TRIPx
is 2.9 V and the
new V
TRIPx
is 3.2 V, the new voltage can be stored
directly into the V
TRIPx
cell. If however, the new setting
is to be lower than the present setting, then it is neces-
sary to “reset” the V
TRIPx
voltage before setting the
new value.
Setting a Higher V
TRIPx
Voltage (x = 1, 2)
To set a V
TRIPx
threshold to a new voltage which is
higher than the present threshold, the user must apply
the desired V
TRIPx
threshold voltage to the corre-
sponding input pin Vcc(V1MON), or V2MON. The
Vcc(V1MON) and V2MON must be tied together dur-
ing this sequence. Then, a programming voltage (Vp)
must be applied to the WDO pin before a START con-
dition is set up on SDA. Next, issue on the SDA pin the
Slave Address A0h, followed by the Byte Address 01h
for V
TRIP1
and 09h for V
TRIP2
, and a 00h Data Byte in
order to program V
TRIPx
. The STOP bit following a
valid write operation initiates the programming
sequence. Pin WDO must then be brought LOW to
complete the operation.
Note:
This operation does not corrupt the memory
array.
Setting a Lower V
TRIPx
Voltage (x = 1, 2)
In order to set V
TRIPx
to a lower voltage than the
present value, then V
TRIPx
must first be “reset” accord-
ing to the procedure described below. Once V
TRIPx
has been “reset”, then V
TRIPx
can be set to the desired
voltage using the procedure described in “Setting a
Higher V
TRIPx
Voltage”.
V
CC
/V2MON
V
P
t
WC
A0h
0
7
7
0
7
0
SCL
WDO
SDA
(X = 1, 2)
00h
SCL
SDA
.6μs
1.3μs
Timer Start
X40410, X40411, X40414, X40415
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| X40410S8-B | 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor |
| X40410S8-C | 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor |
| X40410V8-A | Dual Voltage Monitor with Intergrated CPU Supervisor |
| X40411V8-A | Dual Voltage Monitor with Intergrated CPU Supervisor |
| X40411V8-B | Dual Voltage Monitor with Intergrated CPU Supervisor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X40410S8-AT1 | 功能描述:IC VOLTAGE MON DUAL W/SUP 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:100 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:- 復位:低有效 復位超時:最小為 100 ms 電壓 - 閥值:4.38V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
| X40410S8-B | 功能描述:IC VOLTAGE MON DUAL W/SUP 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:100 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:- 復位:低有效 復位超時:最小為 100 ms 電壓 - 閥值:4.38V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
| X40410S8-BT1 | 功能描述:IC VOLTAGE MON DUAL W/SUP 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:100 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:- 復位:低有效 復位超時:最小為 100 ms 電壓 - 閥值:4.38V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
| X40410S8-C | 功能描述:IC VOLTAGE MON DUAL W/SUP 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:100 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:- 復位:低有效 復位超時:最小為 100 ms 電壓 - 閥值:4.38V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
| X40410S8-CT1 | 功能描述:IC VOLTAGE MON DUAL W/SUP 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:100 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:- 復位:低有效 復位超時:最小為 100 ms 電壓 - 閥值:4.38V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
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