TPS3809I50-EP Datasheet, PDF (1/13 Pages) Texas Instruments – 3-PIN SUPPLY VOLTAGE SUPERVISORS

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TPS3809L30-EP, TPS3809K33-EP, TPS3809I50-EP
3-PIN SUPPLY VOLTAGE SUPERVISORS
SGLS369A – AUGUST 2006 – REVISED NOVEMBER 2006
FEATURES
• Controlled Baseline
– One Assembly Site
– One Test Site
– One Fabrication Site
• Extended Temperature Performance of –55°C
to 125°C
• Enhanced Diminishing Manufacturing
Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree ⁽¹⁾
• 3-Pin SOT-23 Package
• Supply Current of 9 µA (Typical)
(1) Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
• Precision Supply Voltage Monitor
2.5 V, 3 V, 3.3 V, 5 V
• Power-On Reset Generator With Fixed Delay
Time of 200 ms
• Pin-for-Pin Compatible With MAX 809
DBV PACKAGE
(TOP VIEW)
GND ¹
3
V_DD
RESET ²
DESCRIPTION
The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for
DSPs and processor-based systems.
During power-on, RESET is asserted when the supply voltage V_DD becomes higher than 1.1 V. Thereafter, the
supervisory circuit monitors V_DD and keeps RESET 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 (high) to ensure proper system reset.
The delay time, t_d(typ) = 200 ms, starts after V_DD has risen above the V_IT. When the supply voltage drops below
the V_IT, the output becomes active (low) again. No external components are required. All the devices of this
family have a fixed-sense V_IT set by an internal voltage divider.
The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in
a 3-pin SOT-23 package. The TPS3809 devices are characterized for operation over a temperature range of
–55°C to 125°C.
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated