TPS3123-XX Datasheet, PDF (1/12 Pages) Texas Instruments – ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS

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TPS3123-xx
TPS3124-xx, TPS3125-xx
TPS3126-xx, TPS3128-xx
SLVS227B – AUGUST 1999 – REVISED FEBRUARY 2004
ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS
FEATURES
• Minimum Supply Voltage of 0.75 V
• Supply Voltage Supervision Range:
– 1.2 V, 1.5 V, 1.8 V (TPS312x)
– 3 V (TPS3125 Devices Only)
– Other Versions on Request
• Power-On Reset Generator With Fixed Delay
Time of 180 ms
• Manual Reset Input (TPS3123/5/6/8)
• Watchdog Timer Retriggers the RESET Output
at V_DD≥ V_IT
• Supply Current of 14 µA (Typ)
• Small SOT23-5 Package
• Temperature Range of -40°C to 85°C
• Reset Output Available in Push-Pull (Active
Low and High) and Open-Drain (Active-Low)
APPLICATIONS
• Applications Using Low Voltage DSPs,
Microcontrollers, or Microprocessors
• Portable/Battery-Powered Equipment
• Wireless Communication Systems
• Programmable Controls
• Industrial Equipment
• Notebook/Desktop Computers
• Intelligent Instruments
1.2 V
DBV PACKAGE
(TOP VIEW)
TPS3123/T
PS3128
RESET
1
5
V_DD
GND
2
MR
3
4
WDI
TPS3124
RESET
1
5
V_DD
GND
2
RESET
3
4
WDI
TPS3125/
TPS3126
RESET
1
5
V_DD
GND
2
RESET
3
4
MR
V_DD RESET
MR
WDI
TPS3123J12
GND
CV_DD
DV_DD
TMS320UVC5402
RESET
XF
GND
Figure 1. Typical Low-Voltage DSP Application
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 © 1999–2004, Texas Instruments Incorporated