V62/06637-22XE中文资料德州仪器数据手册PDF规格书

1FEATURES

· 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 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

SUPPORTS DEFENSE, AEROSPACE,

AND MEDICAL APPLICATIONS

· Controlled Baseline

· One Assembly/Test Site

· One Fabrication Site

· Available in Military (–55°C/125°C)

Temperature Range(1)

· Extended Product Life Cycle

· Extended Product-Change Notification

· Product Traceability

APPLICATIONS

· Applications Using Automotive Low-Power

DSPs, Microcontrollers, or Microprocessors

· Battery-Powered Equipment

· Intelligent Instruments

· Wireless Communication Systems

· Automotive Systems

(1) Custom temperature ranges available

DESCRIPTION

The TPS3836, TPS3837, TPS3838 families of supervisory circuits provide circuit initialization and timing

supervision, primarily for digital signal processing (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 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.