TPS3813K33-Q1 - 具有可编程看门狗窗口的汽车类监控器

TPS3813K33-Q1是TI德州仪器公司的一款无产品，TPS3813K33-Q1是具有可编程看门狗窗口的汽车类监控器，本站介绍了TPS3813K33-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS3813K33-Q1相关的TI元器件型号供参考。

TPS3813K33-Q1 - 具有可编程看门狗窗口的汽车类监控器 - 无 - 监控器和复位IC - 德州仪器

产品特性

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM Classification Level 2
- Device CDM Classification Level C4B
Window-Watchdog With Programmable Delay and Window Ratio
6-Pin SOT-23 Package
Supply Current of 9 μA (Typ)
Power-On Reset Generator With a Fixed Delay Time of 25ms
Precision Supply-Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V
Open-Drain Reset Output

产品应用

Applications Using DSPs, Microcontrollers, or Microprocessors
Safety-Critical Systems
Automotive Systems
Heating Systems

产品说明

The TPS3813-Q1 supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

During power on, the RESET pin is asserted when the supply voltage (VDD) becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps the RESET pin active as long as VDD remains below the threshold voltage (VIT).

An internal timer delays the return of the output to the inactive (high) state to ensure proper system reset. The delay time, td = 25 ms typical, begins after VDD has 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.

For safety-critical applications, the TPS3813-Q1family of devices incorporate a window-watchdog with programmable delay and window ratio. The upper limit of the watchdog time-out can be set by either connecting the WDT pin to GND or VDD, or by using an external capacitor. The lower limit, and thus the window ratio, is set by connecting the WDR pin to GND or VDD. The RESET pin will assert a reset to the microcontroller if the watchdog is incorrectly serviced.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The devices are available in a 6-pin SOT-23 package. The devices are characterized for operation over a temperature range of –40°C to 125°C.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS3813K33-Q1	SOT-23 (6)	2.90 mm × 1.60 mm
TPS3813I50-Q1	SOT-23 (6)	2.90 mm × 1.60 mm

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