TPS3838K33-Q1 - 具有 10ms/200ms 可选择延迟时间的汽车类 220nA 监控器

TPS3838K33-Q1是TI德州仪器公司的一款无产品，TPS3838K33-Q1是具有 10ms/200ms 可选择延迟时间的汽车类 220nA 监控器，本站介绍了TPS3838K33-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS3838K33-Q1相关的TI元器件型号供参考。

TPS3838K33-Q1 - 具有 10ms/200ms 可选择延迟时间的汽车类 220nA 监控器 - 无 - 监控器和复位IC - 德州仪器

产品描述

The TPS3836, TPS3837, TPS3838 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.

During power on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET output active as long as VDD remains below the threshold voltage VIT . An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDD has risen above the threshold voltage VIT.

When CT is connected to GND a fixed delay time of typical 10 ms is asserted. When connected to VDD the delay time is typically 200 ms.

When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again.

All the devices of this family have a fixed-sense threshold voltage VIT set by an internal voltage divider.

The TPS3836 has an active-low push-pull RESET output. The TPS3837 has active-high push-pull RESET, and TPS3838 integrates an active-low open-drain RESET output.

The product spectrum is designed for supply voltages of 1.8 V, 2.5 V, 3 V, and 3.3 V. The circuits are available in a 5-pin SOT-23 package. The TPS3836-Q-Q1, TPS3837-Q-Q1, TPS3838-Q-Q1 families are characterized for operation over a temperature range of –40°C to 125°C.

产品特性

Qualified for Automotive Applications
Customer-Specific Configuration Control Can Be Supported Along With Major-Change Approval
ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Supply Current of 220 nA (Typ)
Precision Supply Voltage Supervision Range: 1.8 V, 2.5 V, 3.0 V, 3.3 V
Power-On Reset Generator With Selectable Delay Time of 10 ms or 200 ms
Push/Pull RESET Output (TPS3836), RESET Output (TPS3837), or Open-Drain RESET Output (TPS3838)
Manual Reset
5-Pin SOT-23 Package
Temperature Range –40°C to 125°C
Applications Include
- Applications Using Automotive Low-Power DSPs, Microcontrollers, or Microprocessors
- Battery-Powered Equipment
- Intelligent Instruments
- Wireless Communication Systems
- Automotive Systems

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