Datasheet

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    
SLVS336B − DECEMBER 2000 − REVISED JANUARY 2007
2
description
The TPS3600 family of supervisory circuits monitor and control processor activity. In case of power-fail or
brownout conditions, the backup-battery switchover function of TPS3600 allows to run a low-power processor
and its peripherals from the installed backup battery without asserting a reset beforehand.
During power on, RESET
is asserted when the supply voltage (V
DD
or V
BAT
) becomes higher than V
res
.
Thereafter, the supply voltage supervisor monitors V
OUT
and keeps RESET output active as long as V
OUT
remains below the threshold voltage (V
IT
). An internal timer delays the return of the output to the inactive state
(high) to ensure proper system reset. This delay timer starts its time-out, after V
OUT
has risen above the
threshold voltage (V
IT
). In case of a brownout or power failure of both supply sources, a voltage drop below the
threshold voltage (V
IT
) get detected and the output becomes active (low) again.
The product spectrum is designed for supply voltages of 2 V, 2.5 V, 3.3 V, and 5 V. The circuits are available
in a 14-pin TSSOP package. They are characterized for operation over a temperature range of −40°C to 85°C.
PACKAGE INFORMATION
T
A
DEVICE NAME
TPS3600D20
−40°C to 85°C
TPS3600D25
−40°C to 85°C
TPS3600D33
TPS3600D50
ordering information application specific versions (see Note)
TPS360 0 D PW R
Reel
Package
20
Nominal Supply Voltage
Nominal BATTOK Threshold Voltage
Functionality
Family
DEVICE NAME NOMINAL VOLTAGE, V
NOM
TPS3600x20 PW 2.0 V
TPS3600x25 PW 2.5 V
TPS3600x33 PW 3.3 V
TPS3600x50 PW 5.0 V
NOMINAL BATTOK
DEVICE NAME
THRESHOLD VOLTAGE, V
BOK
TPS3600Dxx PW V
IT
+ 7%
TPS3600Fxx PW
{
V
IT
+ 6%
TPS3600Hxx PW
{
V
IT
+ 8%
TPS3600Jxx PW
{
V
IT
+ 10%
†
For the application specific versions, please contact the local TI sales
office for availability and lead time.
www.ti.com