TLV4021R2集成電路（IC）的比較器規(guī)格書PDF中文資料

TLV4021R2屬于集成電路（IC）的比較器。由德州儀器制造生產(chǎn)的TLV4021R2比較器邏輯比較器系列產(chǎn)品用于根據(jù)以數(shù)字格式表示的信息比較結(jié)果來生成輸出；身份型比較器指示兩個輸入是否相同，幅度型比較器還指示兩個輸入不相同時哪個較大。它們不同于比較兩個模擬輸入幅度的器件，后者稱為線性比較器且單獨分類。

1 Features

? Wide supply voltage range: 1.6 V to 5.5 V

? Precision References: 0.2 V, 0.5 V, and 1.2 V

? Fixed threshold of 3.2 V

? Reference accuracy

– 0.5% at 25°C

– 1% over temperature

? Low quiescent current: 2 μA

? Propagation delay: 360 ns

? Push-pull and open-drain output options

? Known startup conditions

? Non-inverting and inverting input options

? Precision hysteresis

? Temperature range: –40°C to +125°C

? Packages:

– 0.73 mm × 0.73 mm DSBGA (4-bump)

– SOT-23 (5-pin)

2 Applications

? Self-diagnostics

? Lithium ion battery monitoring

? Battery management and protection

? Current and voltage sensing

? Analog front end

? Power management

? Point of load regulators

? DC/DC and AC/DC power supplies

? System control and monitoring

3 Description

The TLV40x1 devices are low-power, high-accuracy

comparators with precision references and fast

response. The comparators are available in an ultrasmall,

DSBGA package measuring 0.73 mm × 0.73

mm, making the TLV40x1 applicable for space-critical

designs like portable or battery-powered electronics

where low-power and fast response to changes in

operating conditions is required.

The factory-trimmed references and precision

hysteresis combine to make the TLV40x1 appropriate

for voltage and current monitoring in harsh, noisy

environments where slow moving input signals must

be converted into clean digital outputs. Similarly, brief

glitches on the input are rejected ensuring stable

output operation without false triggering.

The TLV40x1 are available in multiple configurations

allowing system designers to achieve their desired

output response. For example, the TLV4021 and

TLV4041 offer a non-inverting input, while the

TLV4031 and TLV4051 have an inverting input.

Furthermore, the TLV4021 and TLV4031 feature an

open-drain output stage, while the TLV4041 and

TLV4051 feature a push-pull output stage. Lastly,

each comparator in the TLV40x1 family is available

with a 0.2V, 0.5V, or 1.2V precision reference.