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TPS3705-50DR Datasheet(PDF) 3 Page - Texas Instruments

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No. de Pieza. TPS3705-50DR
Descripción  PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL
Descarga  21 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS3705-50DR Datasheet(HTML) 3 Page - Texas Instruments

 
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TPS3705xx
TPS3707xx
PROCESSOR SUPERVISORY CIRCUITS WITH POWERFAIL
SLVS184C − NOVEMBER 1998 − REVISED DECEMBER 2005
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Function Tables
TRUTH TABLE, TPS3705
MR
VDD>VIT
RESET
TYPICAL
DELAY
H
→L
1
H
→L
30 ns
L
→H
1L
→H
200 ms
H
1
→0H→L
3
µs
H
0
→1
L
→H
200 ms
TRUTH TABLE, TPS3707
MR
VDD>VIT
RESET
RESET
TYPICAL
DELAY
H
→L
1
H
→L
L
→H
30 ns
L
→H
1L
→H
H
→L
200 ms
H
1
→0H→L
L
→H3 µs
H
0
→1
L
→H
H
→L
200 ms
TRUTH TABLE, TPS370x
PFI>VIT
PFO
TYPICAL
DELAY
0
→1
L
→H
0.5
µs
1
→0
H
→L
0.5
µs
functional block diagram
Reset
Logic + Timer
_
+
_
+
R1
R2
14 k
Reference
Voltage
of 1.25 V
Watchdog
Logic + Timer
Oscillator
40 k
Transition
Detection
VDD
MR
GND
PFI
WDI
RESET
RESET
PFO
WDO
Only
TPS3705
Only
TPS3707
Only
TPS3705
TPS3705
TPS3707


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