Product Summary

The TPS3705-50DRG4 is a processor supervisory circuit with power-fail. It provides circuit initialization and timing supervision, primarily for DSP and processor-based systems. The TPS3705-50DRG4 has 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. The applications of the TPS3705-50DRG4 include: Designs Using DSPs, Microcontrollers or Microprocessors, Industrial Equipment, Programmable Controls, Automotive Systems, Portable/Battery Powered Equipment, Intelligent Instruments, Wireless Communication Systems, Notebook/Desktop Computers.

Parametrics

TPS3705-50DRG4 absolute maximum ratings: (1)Supply voltage, VDD: 7 V; (2)All other pins: –0.3 V to 7 V; (3)Maximum low output current, IOL: 5 mA; (4)Maximum high output current, IOH : –5 mA; (5)Input clamp current, IIK (VI < 0 or VI > VDD: ±20 mA; (6)Output clamp current, IOK (VO < 0 or VO > VDD): ±20 mA; (7)Operating free-air temperature range, TA: –40℃ to 85℃; (8)Storage temperature range, Tstg: –65℃ to 150℃; (9)Soldering temperature: 260℃.

Features

TPS3705-50DRG4 features: (1)Power-On Reset Generator with Fixed Delay Time of 200 ms, no External Capacitor Needed; (2)Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, and 5 V; (3)Pin-For-Pin Compatible with the MAX705 through MAX708 Series; (4)Integrated Watchdog Timer; (5)Voltage Monitor for Power-Fail or Low-Battery Warning; (6)Maximum Supply Current of 50 mA; (7)MSOP-8 and SO-8 Packages; (8)Temperature Range: –40℃ to 85℃.

Diagrams

TPS3705-50DRG4 diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TPS3705-50DRG4
TPS3705-50DRG4

Texas Instruments

Supervisory Circuits Processor with Power-Fail

Data Sheet

0-1790: $0.46
1790-2000: $0.44
2000-2500: $0.44
2500-5000: $0.42
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TPS31
TPS31

Other


Data Sheet

Negotiable 
TPS3103
TPS3103

Other


Data Sheet

Negotiable 
TPS3103E12DBVR
TPS3103E12DBVR

Texas Instruments

Supervisory Circuits Current/Supply-Volt Supervisory

Data Sheet

0-1: $1.51
1-25: $1.22
25-100: $1.10
100-250: $1.00
TPS3103E12DBVR‡
TPS3103E12DBVR‡

Other


Data Sheet

Negotiable 
TPS3103E12DBVRG4
TPS3103E12DBVRG4

Texas Instruments

Supervisory Circuits Current/Supply-Volt Supervisory

Data Sheet

0-1930: $0.76
1930-3000: $0.72
3000-6000: $0.69
TPS3103E12DBVT
TPS3103E12DBVT

Texas Instruments

Supervisory Circuits Lw A & V

Data Sheet

0-1: $1.87
1-25: $1.52
25-100: $1.37
100-250: $1.15