TLV840MAPL36DBVRQ1是由德州仪器（Texas Instruments）生产的一款汽车级电压监控和复位集成电路（IC），也就是我们俗称的看门狗芯片。
TLV840MAPL36DBVRQ1
正在供货
具有可调节复位延时时间和手动复位的汽车低压监控器

品牌
德州仪器（Texas Instruments），简称 TI），是一家全球领先的半导体公司，专注于模拟集成电路、嵌入式处理器和微控制器等产品的研发与制造。

参数
输出类型：推挽式/图腾柱
通道数：1 通道
封装：SOT-23-5
工作温度范围：-40°C 至 +125°C
供电电流（Nano supply current）：120 nA（典型值）
精度：±0.5%（典型值）
内置迟滞（Built-in hysteresis, VHYS）：5%（典型值）
固定阈值电压（Fixed threshold voltage, VIT-）：0.8 V 至 5.4 V
功能
TLV840MAPL36DBVRQ1 是一款电压监控器，适用于汽车应用和电池供电/低功耗应用。它能够在广泛的输入电压水平（0.7 V 至 6 V）下工作，同时保持整个 VDD 和温度范围内的低静态电流。该设备提供了低功耗、高准确性和低传播延迟（tp_HL= 30 µs 典型值）的最佳组合。当 VDD 电压低于负电压阈值（VIT-）时，复位输出信号被激活。当 VDD 电压上升到 VIT- 加上迟滞（VHYS）并且复位时间延迟（tD）过期时，复位信号被清除。通过在 CT 引脚和地之间连接电容器，可以编程复位时间延迟。对于最小的复位延迟时间，CT 引脚可以保持浮动。该设备还具有手动复位引脚（MR），在引脚被断言时，提供了程序灵活性，强制系统进入硬复位。

价格
根据德州仪器官方网站的信息，TLV840MAPL36DBVRQ1 的单价在不同购买数量下有所不同。1至99个单位的价格为每个USD0.548，100至249个单位的价格为每个USD0.548，100至249个单位的价格为每个USD0.422，250至999个单位的价格为每个USD$0.250。

应用
TLV840MAPL36DBVRQ1 适用于汽车应用和电池供电/低功耗应用，是电压监控的完美解决方案。它还具备低功耗复位电压（VPOR）、为 VDD 内置的毛刺免疫保护、内置迟滞和低开漏输出泄露电流（Ilkg(OD)）等附加特性。

以上信息提供了 TLV840MAPL36DBVRQ1 的品牌背景、技术参数、功能特性、价格范围和应用场景的概述。在考虑购买和应用该产品时，建议进一步查阅详细的数据手册和规格说明书，以确保其满足特定项目的需求。

封装信息
封装 | 引脚
SOT-23 (DBV) | 5
工作温度范围 (°C)
-40 to 125
包装数量 | 包装
3,000 | LARGE T&R
TLV840-Q1 的特性
Qualified for automotive applications:

AEC-Q100 qualified with the following results:
Device temperature grade 1: –40°C to +125°C ambient operating temperature
Device HBM ESD classification level 2
Device CDM ESD classification level C7B
Designed for high performance:

Nano supply current : 120 nA (Typ)
High accuracy: ±0.5% (Typ)
Built-in hysteresis (VHYS): 5% (Typ)
Fixed threshold voltage (VIT-): 0.8 V to 5.4 V
Designed for a wide range of applications:

Operating voltage range : 0.7 V to 6 V
Fixed (VIT-) voltage: 0.8 V to 5.4 V in 0.1 V steps
Programmable reset time delay (tD)
Min time delay: 40 µs (typ) without capacitor
Active-low manual reset (MR)
Multiple output topologies / Package type:

Four output topologies (RESET / RESET):
TLV840MADL-Q1: open-drain, active-low
TLV840MAPL-Q1: push-pull, active-low
TLV840MADH-Q1: open-drain, active-high
TLV840MAPH-Q1: push-pull, active-high
Package: SOT23-5 (DBV)
TLV840-Q1 的说明
The TLV840-Q1 device is a voltage supervisor or reset IC that can operate at wide input voltage levels from 0.7 V to 6 V while maintaining very low quiescent current across the whole VDD and temperature range. TLV840-Q1 offers the best combination of low power consumption, high accuracy and low propagation delay (tp_HL= 30 µs typical).

Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-). Reset signal is cleared when VDD rise above VIT- plus hysteresis (VHYS) and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground. For a minimum reset delay time the CT pin can be left floating. The TLV840-Q1, with its manual reset pin (MR), offers program flexibility by forcing the system into a hard reset when the pin is asserted.

Additional features: Low power-on reset voltage (VPOR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (Ilkg(OD)). TLV840-Q1 is a perfect voltage monitoring solution for automotive applications and battery-powered / low-power applications.

Part Number
296-TLV840MAPL36DBVRQ1TR-ND - Tape & Reel (TR)
296-TLV840MAPL36DBVRQ1CT-ND - Cut Tape (CT)
296-TLV840MAPL36DBVRQ1DKR-ND - Digi-Reel®
Manufacturer
Texas Instruments
Manufacturer Product Number
TLV840MAPL36DBVRQ1
Description
IC SUPERVISOR 1 CHANNEL SOT23-5
Manufacturer Standard Lead Time
6 Weeks
Customer Reference
Detailed Description
Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-5
Datasheet
 Datasheet
Product Attributes
TYPE
DESCRIPTION
SELECT ALL
Category
Integrated Circuits (ICs)
Power Management (PMIC)
Supervisors
Manufacturer
Texas Instruments
Series
-
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Part Status
Active
DigiKey Programmable
Not Verified
Type
Simple Reset/Power-On Reset
Number of Voltages Monitored
1
Voltage - Threshold
3.6V
Output
Push-Pull, Totem Pole
Reset
Active Low
Reset Timeout
40µs Typical
Operating Temperature
-40°C ~ 125°C (TA)
Grade
Automotive
Qualification
AEC-Q100
Mounting Type
Surface Mount
Package / Case
SC-74A, SOT-753
Supplier Device Package
SOT-23-5
Base Product Number
TLV840
Documents & Media
RESOURCE TYPE LINK
Datasheets TLV840-Q1
PCN Assembly/Origin Assembly Material 05/Jun/2023
Environmental & Export Classifications
ATTRIBUTE DESCRIPTION
RoHS Status Not applicable
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8542.39.0001

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