TPS3705 Datasheet, PDF (1/16 Pages) Texas Instruments – PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL

TPS3705-30, TPS3705-33, TPS3705-50
TPS3707-25, TPS3707-30, TPS3707-33, TPS3707-50
PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL
SLVS184B – NOVEMBER 1998 – REVISED JANUARY 1999
features
D Power-On Reset Generator with Fixed
Delay Time of 200 ms, no External
Capacitor Needed
D Precision Supply Voltage Monitor 2.5 V, 3 V,
3.3 V, and 5 V
D Pin-For-Pin Compatible with the MAX705
through MAX708 Series
D Integrated Watchdog Timer (TPS3705 only)
D Voltage Monitor for Power-Fail or
Low-Battery Warning
D Maximum Supply Current of 50 µA
D MSOP-8 and SO-8 Packages
D Temperature Range . . . –40°C to 85°C
typical applications
D Designs Using DSPs, Microcontrollers or
Microprocessors
D Industrial Equipment
D Programmable Controls
D Automotive Systems
D Portable/Battery Powered Equipment
D Intelligent Instruments
D Wireless Communication Systems
D Notebook/Desktop Computers
12 V
5V
TPS3705 . . . D PACKAGE
(TOP VIEW)
MR 1
V_DD 2
GND 3
PFI 4
8 WDO
7 RESET
6 WDI
5 PFO
TPS3707 . . . D PACKAGE
(TOP VIEW)
MR 1
V_DD 2
GND 3
PFI 4
8 RESET
7 RESET
6 NC
5 PFO
NC – No internal connection
TPS3705 . . . DGN PACKAGE
(TOP VIEW)
RESET 1
WDO 2
MR 3
V_DD 4
8 WDI
7 PFO
6 PFI
5 GND
TPS3707 . . . DGN PACKAGE
(TOP VIEW)
RESET 1
RESET 2
MR 3
V_DD 4
8 NC
7 PFO
6 PFI
5 GND
NC – No internal connection
910 kΩ
120 kΩ
VDD
PFO
TPS3705–50
MR
RESET
100 nF
WDO
PFI
WDI
GND
VDD
MSP430P112
RESET/NMI
I/O
I/O
GND
Figure 1. Typical MSP430 Application
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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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1999, Texas Instruments Incorporated
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