Product Summary

The TPS3705-30D is a processor supervisory circuit with power-fail. It provides circuit initialization and timing supervision, primarily for DSP and processor-based systems. The TPS3705-30D 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 TPS3705-30D 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

TPS3705-30D 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

TPS3705-30D 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

TPS3705-30D block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TPS3705-30D
TPS3705-30D

Texas Instruments

Supervisory Circuits 2.63V Monitor

Data Sheet

0-1: $1.25
1-25: $1.00
25-100: $0.90
100-250: $0.79
TPS3705-30DG4
TPS3705-30DG4

Texas Instruments

Supervisory Circuits Processor Supery Circuits

Data Sheet

0-1: $1.13
1-25: $0.91
25-100: $0.82
100-250: $0.74
TPS3705-30DGNG4
TPS3705-30DGNG4

Texas Instruments

Supervisory Circuits Processor with Power-Fail

Data Sheet

0-1: $0.83
1-25: $0.66
25-100: $0.46
100-250: $0.45
TPS3705-30DGN
TPS3705-30DGN

Texas Instruments

Supervisory Circuits 2.63V Monitor

Data Sheet

0-1: $0.83
1-25: $0.66
25-100: $0.46
100-250: $0.45
TPS3705-30DR
TPS3705-30DR

Texas Instruments

Supervisory Circuits Processor with Power-Fail

Data Sheet

0-1960: $0.42
1960-2000: $0.41
2000-2500: $0.41
2500-10000: $0.41
TPS3705-30DRG4
TPS3705-30DRG4

Texas Instruments

Supervisory Circuits Processor with Power-Fail

Data Sheet

0-1960: $0.42
1960-2000: $0.41
2000-2500: $0.41
2500-10000: $0.41