TPS3103xxx
TPS3106xxx
TPS3110xxx
www.ti.com
SLVS363E–AUGUST 2001–REVISED SEPTEMBER 2007
UltraLow Supply-Current/Supply-Voltage Supervisory Circuits
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FEATURES
DESCRIPTION
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Precision Supply Voltage Supervision Range:
0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V
The TPS310x and TPS311x families of supervisory
circuits provide circuit initialization and timing
supervision, primarily for DSP and processor-based
systems.
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High Trip-Point Accuracy: 0.75%
Supply Current of 1.2 μA (typical)
RESET Defined With Input Voltages as Low as
0.4 V
During power-on, RESET is asserted when the
supply voltage (VDD) becomes higher than 0.4 V.
Thereafter, the supervisory circuit monitors VDD and
keeps the RESET output active as long as VDD
remains below the threshold voltage (VIT). An internal
timer delays the return of the output to the inactive
state to ensure proper system reset. The delay time
starts after VDD has risen above VIT. When VDD drops
below VIT, the output becomes active again.
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Power-On Reset Generator With a Delay Time
of 130 ms
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Push/Pull or Open-Drain RESET Outputs
SOT23-6 Package
Package Temperature Range: –40°C to +85°C
APPLICATIONS
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All the devices of this family have a fixed-sense
threshold voltage (VIT) set by an internal voltage
divider.
Applications Using Low-Power DSPs,
Microcontrollers, or Microprocessors
Portable- and Battery-Powered Equipment
Intelligent Instruments
Wireless Communication Systems
Industrial Equipment
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The TPS3103 and TPS3106 have an active-low,
open-drain RESET output. The TPS3110 has an
active-low push/pull RESET.
The product spectrum is designed for supply voltages
of 0.9 V up to 3.3 V. The circuits are available in
SOT23-6 packages. The TPS31xx family is
characterized for operation over a temperature range
of –40°C to +85°C.
Notebook/Desktop Computers
TPS3106
DBV PACKAGE
(TOP VIEW)
TPS3103
DBV PACKAGE
(TOP VIEW)
3.3 V
1.6 V
1
2
3
1
2
3
VDD
6
5
VDD
6
5
RSTVDD
GND
RESET
GND
MR
VDD
VCORE
DSP
RESET
VIO
R3
RSTSENSE
SENSE
PFO
PFI
TPS3106K33DBV
R1
R2
4
4
MR
MR
RSTVDD
SENSE
TPS3110
DBV PACKAGE
(TOP VIEW)
RSTSENSE
GND
GND
GND
1
2
3
6
5
VDD
RESET
GND
WDI
Typical Application Circuit
4
SENSE
MR
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2001–2007, Texas Instruments Incorporated