參數(shù)資料
型號: CAT812JTBI-GT3
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4
封裝: GREEN, TO-253, SOT-143, 4 PIN
文件頁數(shù): 9/11頁
文件大?。?/td> 222K
代理商: CAT812JTBI-GT3
CAT811, CAT812
Catalyst Semiconductor, Inc.
7
Doc. No. MD-3005 Rev. S
Characteristics subject to change without notice
VALID RESET WITH VCC UNDER 1.0V
To ensure that the CAT811 RESET
pin is in a known
state when VCC is under 1.0V, a 100k pull-down
resistor
between
RESET
pin
and
GND
is
recommended; the value is not critical. For the
CAT812, a pull-up resistor from RESET pin to VCC is
needed.
Figure 3. RESET
Valid with VCC under 1.0V
Figure 4. RESET Valid with VCC under 1.1V
BI-DIRECTIONAL RESET PIN INTERFACING
The CAT811/812 can interface with P/C bi-
directional reset pins by connecting a 4.7k resistor in
series with the CAT811/812 reset output and the
P/C bi-directional reset pin.
Figure 5. Bi-directional Reset Pin Interfacing
VCC
GND
100k
CAT811
MR
RESET
Power
Supply
VCC
GND
100k
CAT812
MR
RESET
Power
Supply
GND
4.7k
CAT811
MR
GND
BUF
RESET
INPUT
RESET
Power
Supply
P
(for example: 68HC11)
Buffered
Bi-directional I/O Pin
VCC
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CAT1023JE-25TE13 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
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