Datasheet

R2
_
+
R1
V
DD
GND
RESET
TPS3809
Oscillator
Reference
Voltage
of 1.137 V
Reset
Logic
+
Timer
t
d
t
V
DD
V
(NOM)
V
IT
1.1 V
1
0 t
For V
DD
< 1.1 V Undefined
Behavior of RESET Output
RESET
t
d
TPS3809J25, TPS3809L30
TPS3809K33, TPS3809I50
SLVS228C –AUGUST 1999–REVISED OCTOBER 2013 www.ti.com
TIMING DIAGRAM
FUNCTIONAL BLOCK DIAGRAM
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