The TPS3307-xx family is a series of micropower supply voltage supervisors designed for circuit initialization primarily in DSP and processor-based systems which require more than one supply voltage.
The TPS3307-18 and TPS3307-33 are designed for monitoring three independent supply voltages: 3.3 V/1.8 V/adj and 5V/3.3V/adj, respectively. The adjustable SENSE input allows the monitoring of any supply voltage >1.25 V.
The various supply voltage supervisors are designed to monitor the nominal supply voltage as shown in the following supply voltage monitoring table.
The devices are available in either 8-pin MSOP or a standard 8-pin SO packages and are characterized for operation over a temperature range of −55°C to 125°C.
● Controlled Baseline
− One Assembly/Test Site, One Fabrication
● Extended Temperature Performance of
−55°C to 125°C
● Enhanced Diminishing Manufacturing
Sources (DMS) Support
● Enhanced Product Change Notification
● Qualification Pedigree†
● ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
● Triple Supervisory Circuits for DSP and
● Power-On Reset Generator With Fixed
Delay Time of 200 ms, No External
● Temperature-Compensated Voltage
● Maximum Supply Current of 40 µA
● Supply Voltage Range . . . 2 V to 6 V
● Defined RESET Output from VDD ≥ 1.1 V
● SO-8 and MSOP-8 Packages
Figure 1 lists some of the typical applications for the TPS3307 family, and a schematic diagram for a processor-based system application. This application uses Texas Instruments part numbers TPS3307-18 and SMJ320C6201B.
● Military applications using DSPs,
Microcontrollers or Microprocessors
● Industrial Equipment
● Programmable Controls
● Military Systems