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TI TPS3705-33DR Integrated Microprocessor Supervisory Circuits

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TI TPS3705-33DR Integrated Microprocessor Supervisory Circuits
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Manufacturer Part Number: TPS3705-33DR
Brand Name: Original
Place Of Origin: Original Manufacturer
Stocking Time: 1-3day
Description: Integrated Circuits
Delivery Address: Shenzhen
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TI TPS3705-33DR




Microprocessor Supervisory Circuits

Basic Infomation
Place of Origin: Original Factory
Brand Name: Texas Instruments
Certification: ROHS COMPLIANT
Model Number: TPS3705-33DR
Payment & Shipping Terms
Packaging Details: Standard Packaging
Delivery Time: Within 3days
Payment Terms: T/T in advance, Western Union, Xtransfer
Supply Ability: 1000
Product Description



Detailed Product Description
Part Number: TPS3705-33DR MFG: TI
Temperature Range . .: . –40°C To 85°C Packages: MSOP-8 And SO-8
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The TPS3705, TPS3707 family of microprocessor supply-voltage supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.

During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT+. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, tdtyp= 200 ms, starts after VDDhas risen above the threshold voltage VIT+. When the supply voltage drops below the threshold voltage VIT–, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage VIT– set by an internal voltage divider.

The TPS3705-xx and TPS3707-xx devices incorporate a manual reset input, MR. A low level at MR causes RESET to become active.

The TPS370x-xx families integrate a power-fail comparator which can be used for low-battery detection, power-fail warning, or for monitoring a power supply other than the main supply.

The TPS3705-xx devices have a watchdog timer that is periodically triggered by a positive or negative transition at WDI. When the supervising system fails to retrigger the watchdog circuit within the time-out interval, tt(out)= 1.6 s, WDO becomes active. This event also reinitializes the watchdog timer. Leaving WDI unconnected disables the watchdog.

The TPS3707-xx devices do not have the Watchdog function, but include a high-level output RESET.

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 either 8-pin MSOP or standard SOIC packages. The TPS3705, TPS3707 devices are characterized for operation over a temperature range of –40°C to 85°C.





Power-On Reset Generator with Fixed Delay Time of 200 ms, no External

Capacitor Needed

Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, and 5 V

Pin-For-Pin Compatible with the MAX705 through MAX708 Series

Integrated Watchdog Timer (TPS3705 only)

Voltage Monitor for Power-Fail or Low-Battery Warning

Maximum Supply Current of 50 µA

MSOP-8 and SO-8 Packages

Temperature Range . . . –40°C to 85°C





Datasheets TPS3705-xx, TPS3707-xx
Product Photos 8-SOIC
Standard Package 1
Category Integrated Circuits (ICs)
Family PMIC - Supervisors
Series -
Packaging Digi-Reel®
Type Simple Reset/Power-On Reset
Number of Voltages Monitored 1
Output Push-Pull, Totem Pole
Reset Active Low
Reset Timeout 140 ms Minimum
Voltage - Threshold 2.93V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Other Names 296-26940-6
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