TPS3800-XX_17 Datasheet, PDF (1/16 Pages) Texas Instruments – ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS

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TPS3800-xx
TPS3801-xx
TPS3802-xx
SLVS219E – AUGUST 1999 – REVISED OCTOBER 2010
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
Check for Samples: TPS3800-xx, TPS3801-xx, TPS3802-xx
FEATURES
1
•2 Small, 5-Pin SC-70 (SOT-323) Package
• Supply Current of 9 mA
• Power-On Reset Generator With Fixed Delay
Time
– TPS3800 = 100 ms
– TPS3801 = 200 ms
– TPS3802 = 400 ms
• Precision Supply Voltage Monitor 1.8 V, 2.5 V,
2.7 V, 3 V, 3.3 V, 5 V, and Adjustable
• Manual Reset Input (Except TPS3801-01)
• Temperature Range: –40°C to +85°C
APPLICATIONS
• Applications Using DSPs, Microcontrollers, or
Microprocessors
• Wireless Communication Systems
• Portable/Battery-Powered Equipment
• Programmable Controls
• Intelligent Instruments
• Industrial Equipment
• Notebook/Desktop Computers
• Automotive Systems
DESCRIPTION
The TPS380x family of supervisory circuits monitor
supply voltages to provide circuit initialization and
timing supervision, primarily for DSPs and other
processor-based systems.
These devices assert a push-pull RESET signal when
the SENSE (adjustable version) or V_DD (fixed version)
drops below a preset threshold. The RESET output
remains asserted for the factory programmed delay
time after the SENSE or V_DD return above its
threshold.
The TPS380x devices, except the TPS3801-01,
incorporate a manual reset input (MR). A low level at
MR causes RESET to become active.
The TPS380x uses a precision reference to achieve
an overall threshold accuracy of 2%—2.5%. These
devices are available in a 5-pin SC-70 package,
which is only about half the size of a 5-pin SOT-23
package.
The TPS380x devices are fully specified over a
temperature range of –40°C to +85°C.
TPS380x . . . DCK PACKAGE
(TOP VIEW)
GND
1
5
MR
GND
2
RESET
3
4
V_DD
TPS3801−01 . . . DCK PACKAGE
(TOP VIEW)
GND
1
5
SENSE
GND
2
RESET
3
4
V_DD
V_DD = 1.8 V
100 nF
V_DD
TPS3801E18
MR RESET
GND
CoreV_DD
TMS320VC5420
RESET
GND
1
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
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 © 1999–2010, Texas Instruments Incorporated