TPS386000-Q1数据手册TI中文资料规格书

描述 Description

The TPS386000-Q1 family of voltage supervisors can monitor four power rails that are greater than 0.4 V and one power rail less than 0.4 V (including negative voltage) with a 0.25% (typical) threshold accuracy. Each of the four supervisory circuits (SVS-n) assert a RESETn or RESETn output signal when the SENSEm input voltage drops below the programmed threshold. With external resistors, the threshold of each SVS-n can be programmed (where n = 1, 2, 3, 4 and m = 1, 2, 3, 4L, 4H).

Each SVS-n has a programmable delay before releasing RESETn or RESETn. The delay time can be set from 1.4 ms to 10 s through the CTn pin connection. Only SVS-1 has an active-low manual reset (MR) input; a logic-low input to MR asserts RESET1 or RESET1.

SVS-4 monitors the threshold window using two comparators. The extra comparator can be configured as a fifth SVS to monitor negative voltage with voltage reference output VREF.

The TPS386000-Q1 device has a very low quiescent current of 12 µA (typical) and is available in a small, 4-mm × 4-mm, VQFN-20 package.

特性 Features

• Qualified for Automotive Applications
• AEC Q100 Test Guidance With the Following Results:
• Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
• Device HBM ESD Classification Level H2
• Device CDM ESD Classification Level C4B

• Four Complete SVS Modules on one Silicon Platform
• Programmable Delay Time: 1.4 ms to 10 s
• Very Low Quiescent Current: 12 µA Typical
• Threshold Accuracy: 0.25% Typical
• SVS-1: Manual Reset (MR) Input
• SVS-1, 2, 3: Adjustable Threshold Down to 0.4 V
• SVS-4:
• Adjustable Threshold at Any Positive or Negative Voltage with VREF (1.2 V)
• Window Comparator

• Watchdog Timer with Dedicated Output
• Well-Controlled RESETn Output During Power-Up
• Open-Drain RESETn and WDO
• Package: 4-mm × 4-mm, 20-pin VQFN