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TPS3307-18-Q1

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具有电源故障监视功能的汽车类、三电源轨处理器监控器（3.3V、1.8V 或可调节）

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TPS3307-18-Q1

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Number of supplies monitored 3 Threshold voltage 1 (typ) (V) 1.25, 1.68, 2.93 Features Manual reset capable Reset threshold accuracy (%) 2.7 Iq (typ) (mA) 0.015 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 200 Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 3 Threshold voltage 1 (typ) (V) 1.25, 1.68, 2.93 Features Manual reset capable Reset threshold accuracy (%) 2.7 Iq (typ) (mA) 0.015 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 200 Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • 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 Processor-Based Systems
  • Power-On Reset Generator with Fixed Delay Time of 200 ms, No External Capacitor Needed
  • Temperature-Compensated Voltage Reference
  • Maximum Supply Current of 40 µA
  • Supply Voltage Range ...2 V to 6 V
  • Defined RESET Output from VDD ≥ 1.1 V
  • SO-8 Package
  • Temperature Range ...–40°C to 125°C
  • typical applications
    • Automotive applications using DSPs, Microcontrollers or Microprocessors
    • Industrial Equipment
    • Programmable Controls
    • Automotive Systems
  • Qualified for Automotive Applications
  • 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 Processor-Based Systems
  • Power-On Reset Generator with Fixed Delay Time of 200 ms, No External Capacitor Needed
  • Temperature-Compensated Voltage Reference
  • Maximum Supply Current of 40 µA
  • Supply Voltage Range ...2 V to 6 V
  • Defined RESET Output from VDD ≥ 1.1 V
  • SO-8 Package
  • Temperature Range ...–40°C to 125°C
  • typical applications
    • Automotive applications using DSPs, Microcontrollers or Microprocessors
    • Industrial Equipment
    • Programmable Controls
    • Automotive Systems

The TPS3307-18 is a micropower supply voltage supervisor designed for circuit initialization primarily in automotive DSP and processor-based systems, which require more than one supply voltage.

The TPS3307-18 is designed for monitoring three independent supply voltages: 3.3 V/1.8 V/adj,. 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.

During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors the SENSEn inputs and keeps RESET\ active as long as SENSEn remain 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 = 200 ms, starts after all SENSEn inputs have risen above the threshold voltage VIT+. When the voltage at any SENSE input drops below the threshold voltage VIT–, the RESET output becomes active (low) again.

The TPS3307-18 incorporates a manual reset input, MR. A low level at MR causes RESET to become active. In addition to the active-low RESET output, the TPS3307-18 includes an active-high RESET output.

The device is available in a standard 8-pin SO package, and is characterized for operation over a temperature range of –40°C to 125°C.

The TPS3307-18 is a micropower supply voltage supervisor designed for circuit initialization primarily in automotive DSP and processor-based systems, which require more than one supply voltage.

The TPS3307-18 is designed for monitoring three independent supply voltages: 3.3 V/1.8 V/adj,. 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.

During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors the SENSEn inputs and keeps RESET\ active as long as SENSEn remain 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 = 200 ms, starts after all SENSEn inputs have risen above the threshold voltage VIT+. When the voltage at any SENSE input drops below the threshold voltage VIT–, the RESET output becomes active (low) again.

The TPS3307-18 incorporates a manual reset input, MR. A low level at MR causes RESET to become active. In addition to the active-low RESET output, the TPS3307-18 includes an active-high RESET output.

The device is available in a standard 8-pin SO package, and is characterized for operation over a temperature range of –40°C to 125°C.
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* 数据表 Triple Processor Supervisors 数据表 (Rev. A) 2008年 4月 30日
选择指南 Automotive Supervisor and Reset IC Selection Guide 2016年 2月 22日

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