參數(shù)資料
型號(hào): TPS3618-50DGKTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封裝: 3.05 X 4.98 MM, GREEN, PLASTIC, MSOP-8
文件頁(yè)數(shù): 12/16頁(yè)
文件大?。?/td> 455K
代理商: TPS3618-50DGKTG4
www.ti.com
Switch
Control
_
+
RESET
Logic
+
Timer
_
+
Reference
Voltage
or 1.15 V
VOUT
RESET
VBAT
VDD
PFI
TPS3617
GND
Watchdog
Logic
+
Control
Oscillator
PFO
+
Transition
Detector
WDI
40 k
TPS3618
SLVS339D – DECEMBER 2000 – REVISED DECEMBER 2006
Table 2. PFO FUNCTION
TABLE
PFI > VPFI
PFO
0
1
CONDITION: VDD > VDD(MIN)
Table 3. TERMINAL FUNCTIONS
TERMINAL
NAME
NO.
I/O
DESCRIPTION
GND
3
I
Ground
PFI
4
I
Power-fail comparator input
PFO
5
O
Power-fail comparator output; asserts low when PFI < 1.15 V
RESET
7
O
Active-low push-pull reset output
VBAT
8
I
Backup-battery input
VDD
2
I
Input supply voltage
VOUT
1
O
Supply output
WDI
6
I
Watchdog input. Should be left floating if not used.
FUNCTIONAL BLOCK DIAGRAM
5
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