TPS3820-50QPDBVRQ1集成电路（IC）的监控器规格书PDF中文资料

TPS3820-50QPDBVRQ1属于集成电路（IC）的监控器。由德州仪器制造生产的TPS3820-50QPDBVRQ1监控器PMIC 监控器用于监视和/或控制电路中的电压轨，能够连接微控制器以维持一定的功率限值。监控器类型包括电池备用电路、监控器、多电压监控器、电源监控器、稳压器/监控器、复位计时器、定序器、简单复位/上电复位、智能开/关控制器、系统管理器、电压检测器和看门狗电路。

1 Features

• Qualified for automotive applications

• AEC-Q100 Qualified With the Following Results:

– Device temperature grade 1: –40°C to 125°C

– Device HBM ESD classification level 2

– Device CDM ESD classification level C4B

• ESD protection exceeds 2000V Per MIL-STD-883,

Method 3015; using human body model (C =

100pF, R = 1500Ω)

• Power-on reset generator with fixed delay

time of 200ms (TPS3823/4/5/8-xx-Q1) or 25ms

(TPS3820-xx-Q1)

• Manual reset input (TPS3820/3/5/8-xx-Q1)

• Reset output available in active-low

(TPS3820/3/4/5-xx-Q1), Active-High (TPS3824/5-

xx-Q1), and open drain (TPS3828-xx-Q1)

• Supply voltage supervision range:

2.5V, 3V, 3.3V, 5V

• Watchdog timer (TPS3820/3/4/8-xx-Q1)

• Supply current of 15μA (typical)

• 5-Pin SOT-23 package

• Temperature range: −40°C to 125°C

2 Applications

• Automotive DSPs, microcontrollers, or

microprocessors

• Industrial equipment

• Programmable controls

• Automotive systems

• Portable and battery-powered equipment

• Intelligent instruments

• Wireless communications systems

3 Description

For all new designs with TPS3820-xx-Q1, use the

TPS3820-xxQPDBVRQ1 part number. The TPS3820-

xxQP is functionally equivalent and a replacement to

the TPS3820xxQ. The TPS3820-xxQDBVRQ1 is not

recommended for new designs (NRND).

The TPS382x-xx-Q1 family of supervisors provide

circuit initialization and timing supervision, primarily

for DSP and processor-based systems. During power

on, RESET asserts when the supply voltage VDD

becomes greater than 1.1V. Thereafter, the supply

voltage supervisor monitors VDD and keeps RESET

active low 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

verify a proper system reset. The delay time, td, starts

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. The TPS382xxx-

Q1 family also offers watchdog time out options of

200ms (TPS3820-xx-Q1) and 1.6s (TPS3823/4/8-xx-

Q1).