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FEATURES
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CONTROL
RESIN
CT
GND
VDD
SENSE
RESET
D OR PW PACKAGE
(TOP VIEW)
DESCRIPTION
SGLS013C – MARCH 2003 – REVISED FEBRUARY 2007
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
Controlled Baseline
Power-On Reset Generator
–
One Assembly/Test Site, One Fabrication
Automatic Reset Generation After Voltage
Site
Drop
Enhanced Diminishing Manufacturing Sources
Precision Voltage Sensor
(DMS) Support
Temperature-Compensated Voltage Reference
Enhanced Product Change Notification
Programmable Delay Time by External
Qualification Pedigree(1)
Capacitor
Supply Voltage Range . . . 2 V to 6 V
(1)
Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
Defined RESET Output from V
DD≥ 1 V
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
Power-Down Control Support for Static RAM
temperature cycle, autoclave or unbiased HAST,
With Battery Backup
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
Maximum Supply Current of 16 mA
justifying use of this component beyond specified
Power Saving Totem-Pole Outputs
performance and environmental limits.
The TLC77xx family of micropower supply voltage supervisors provide reset control, primarily in microcomputer
and microprocessor systems.
During power-on, RESET is asserted when VDD reaches 1 V. After minimum VDD (≥ 2 V) is established, the
circuit monitors SENSE voltage and keeps the reset outputs active as long as SENSE voltage (VI(SENSE))
remains below the threshold voltage. An internal timer delays return of the output to the inactive state to ensure
proper system reset. The delay time (td) is determined by an external capacitor:
td = 2.1 × 10
4
× C
T
Where
CT is in farads
td is in seconds
Except for the TLC7701, which can be customized with two external resistors, each supervisor has a fixed sense
threshold voltage set by an internal voltage divider. When SENSE voltage drops below the threshold voltage, the
outputs become active and stay in that state until SENSE voltage returns above threshold voltage and the delay
time (td) has expired.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2003–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.