홈 전원 관리 통제기 및 리셋 IC
홈
전원 관리
통제기 및 리셋 IC

TPS3306-Q1

활성

전원 장애 조치를 지원하는 오토모티브 듀얼 프로세서 통제기

지금 주문
데이터 시트

TPS3306-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Number of supplies monitored 3 Threshold voltage 1 (typ) (V) 1.4, 1.68, 2.93, 4.55 Features PFI/PFO, Timeout watchdog, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 4 Iq (typ) (mA) 0.015 Output driver type/reset output Active-low, Open-drain Time delay (ms) 100 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 6 Rating Automotive Watchdog timer WDI (s) 0.8 Operating temperature range (°C) -40 to 125
Number of supplies monitored 3 Threshold voltage 1 (typ) (V) 1.4, 1.68, 2.93, 4.55 Features PFI/PFO, Timeout watchdog, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 4 Iq (typ) (mA) 0.015 Output driver type/reset output Active-low, Open-drain Time delay (ms) 100 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 6 Rating Automotive Watchdog timer WDI (s) 0.8 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • Dual Supervisory Circuits With Power-Fail for DSP and Processor-Based Systems
  • Voltage Monitor for Power-Fail or Low-Battery Warning
  • Watchdog Timer With 0.8-s Time-Out
  • Power-On Reset Generator With Integrated 100-ms Delay Time
  • Open-Drain Reset and Power-Fail Output
  • Supply Current of 15 µA (Typ)
  • Supply Voltage Range . . . 2.7 V to 6 V
  • Defined RESET Output From VDD ≥ 1.1 V
  • SO-8 Package
  • Temperature Range . . . –40°C to 125°C
  • Applications Include
    • Multivoltage DSPs and Processors
    • Portable Battery-Powered Equipment
    • Embedded Control Systems
    • Intelligent Instruments
    • Automotive Systems
  • Qualified for Automotive Applications
  • Dual Supervisory Circuits With Power-Fail for DSP and Processor-Based Systems
  • Voltage Monitor for Power-Fail or Low-Battery Warning
  • Watchdog Timer With 0.8-s Time-Out
  • Power-On Reset Generator With Integrated 100-ms Delay Time
  • Open-Drain Reset and Power-Fail Output
  • Supply Current of 15 µA (Typ)
  • Supply Voltage Range . . . 2.7 V to 6 V
  • Defined RESET Output From VDD ≥ 1.1 V
  • SO-8 Package
  • Temperature Range . . . –40°C to 125°C
  • Applications Include
    • Multivoltage DSPs and Processors
    • Portable Battery-Powered Equipment
    • Embedded Control Systems
    • Intelligent Instruments
    • Automotive Systems

The TPS3306 family is a series of supervisory circuits designed for circuit initialization which require two supply voltages, primarily in DSP and processor-based systems.

The product spectrum of the TPS3306-xx is designed for monitoring two independent supply voltages of 3.3 V/1.5 V, 3.3 V/1.8 V, 3.3 V/2 V, 3.3 V/2.5 V, or 3.3 V/5 V.

The various supervisory circuits are designed to monitor the nominal supply voltage, as shown in the following supply-voltage monitoring table.

During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuits monitor the SENSEn inputs and keep RESET active as long as SENSEn remains below the threshold voltage VIT.

An internal timer delays the return of the RESET output to the inactive state (high) to ensure proper system reset. The delay time, td(typ) = 100 ms, starts after SENSE1 and SENSE2 inputs have risen above the threshold voltage VIT. When the voltage at SENSE1 or SENSE2 input drops below the threshold voltage VIT, the output becomes active (low) again.

The integrated power-fail (PFI) comparator with separate open-drain (PFO) output can be used for low-battery detection, power-fail warning, or for monitoring a power supply other than the main supply.

The TPS3306-xx devices integrate a watchdog timer that is periodically triggered by a positive or negative transition of WDI. When the supervising system fails to retrigger the watchdog circuit within the time-out interval, tt(out) = 0.50 s, RESET becomes active for the time period td. This event also reinitializes the watchdog timer. Leaving WDI unconnected disables the watchdog.

The TPS3306-xx devices are available in standard 8-pin SO packages.

The TPS3306-xxQ family is characterized for operation over a temperature range of –40°C to 125°C.

The TPS3306 family is a series of supervisory circuits designed for circuit initialization which require two supply voltages, primarily in DSP and processor-based systems.

The product spectrum of the TPS3306-xx is designed for monitoring two independent supply voltages of 3.3 V/1.5 V, 3.3 V/1.8 V, 3.3 V/2 V, 3.3 V/2.5 V, or 3.3 V/5 V.

The various supervisory circuits are designed to monitor the nominal supply voltage, as shown in the following supply-voltage monitoring table.

During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuits monitor the SENSEn inputs and keep RESET active as long as SENSEn remains below the threshold voltage VIT.

An internal timer delays the return of the RESET output to the inactive state (high) to ensure proper system reset. The delay time, td(typ) = 100 ms, starts after SENSE1 and SENSE2 inputs have risen above the threshold voltage VIT. When the voltage at SENSE1 or SENSE2 input drops below the threshold voltage VIT, the output becomes active (low) again.

The integrated power-fail (PFI) comparator with separate open-drain (PFO) output can be used for low-battery detection, power-fail warning, or for monitoring a power supply other than the main supply.

The TPS3306-xx devices integrate a watchdog timer that is periodically triggered by a positive or negative transition of WDI. When the supervising system fails to retrigger the watchdog circuit within the time-out interval, tt(out) = 0.50 s, RESET becomes active for the time period td. This event also reinitializes the watchdog timer. Leaving WDI unconnected disables the watchdog.

The TPS3306-xx devices are available in standard 8-pin SO packages.

The TPS3306-xxQ family is characterized for operation over a temperature range of –40°C to 125°C.
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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2개 모두 보기
유형 직함 날짜
* Data sheet Dual Processor Supervisory Circuits With Power-Fail datasheet (Rev. B) 2008/04/30
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019/06/28

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주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
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  • 조립 위치

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