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參數資料
| 型號： | TPS3103XXX |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | UltraLow Supply-Current/Supply-Voltage Supervisory Circuits |
| 中文描述： | 超低Supply-Current/Supply-Voltage監控電路 |
| 文件頁數： | 1/23頁 |
| 文件大小： | 517K |
| 代理商： | TPS3103XXX |
1
FEATURES
Precision Supply Voltage Supervision Range:
0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V
High Trip-Point Accuracy: 0.75%
Supply Current of 1.2
μ
A (typical)
RESET Defined With Input Voltages as Low as
0.4 V
Power-On Reset Generator With a Delay Time
of 130 ms
Push/Pull or Open-Drain RESET Outputs
SOT23-6 Package
Package Temperature Range: –40
°
C to +85
°
C
DESCRIPTION
The TPS310x and TPS311x families of supervisory
circuits
provide
circuit
supervision, primarily for DSP and processor-based
systems.
APPLICATIONS
Applications Using Low-Power DSPs,
Microcontrollers, or Microprocessors
Portable- and Battery-Powered Equipment
Intelligent Instruments
Wireless Communication Systems
Industrial Equipment
Notebook/Desktop Computers
(TOP VIEW)
RESET
GND
MR
V
DD
PFI
TPS3103
DBV PACKAGE
PFO
3
2
4
6
1
5
(TOP VIEW)
RSTVDD
GND
MR
V
DD
SENSE
TPS3106
DBV PACKAGE
RSTSENSE
3
2
4
6
1
5
(TOP VIEW)
RESET
GND
MR
V
DD
SENSE
TPS3110
DBV PACKAGE
WDI
3
2
4
6
1
5
Typical Application Circuit
TPS3106K33DBV
V
DD
RSTVDD
RSTSENSE
GND
SENSE
R1
R2
GND
V
CORE
V
IO
RESET
R3
DSP
3.3 V
1.6 V
GND
MR
TPS3103xxx
TPS3106xxx
TPS3110xxx
SLVS363E–AUGUST 2001–REVISED SEPTEMBER 2007
www.ti.c om
UltraLow Supply-Current/Supply-Voltage Supervisory Circuits
2
initialization
and
timing
During power-on, RESET is asserted when the
supply voltage (V
DD
) becomes higher than 0.4 V.
Thereafter, the supervisory circuit monitors V
DD
and
keeps the RESET output active as long as V
DD
remains below the threshold voltage (V
IT
). An internal
timer delays the return of the output to the inactive
state to ensure proper system reset. The delay time
starts after V
DD
has risen above V
IT
. When V
DD
drops
below V
IT
, the output becomes active again.
All the devices of this family have a fixed-sense
threshold voltage (V
IT
) set by an internal voltage
divider.
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
characterized for operation over a temperature range
of –40
°
C to +85
°
C.
TPS31xx
family
is
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
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
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