Datasheet > TLV840MADL22DBVRQ1

TLV840MADL22DBVRQ1

更新时间： 2024-09-21 02:48:43

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TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay

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TLV840-Q1

www.ti.com

SNVSBY3A – NOVEMBER 2020 – REVISED APRIL 2021

TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay

1 Features

3 Description

Qualified for automotive applications:

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 (t_{p_HL}= 30 µs typical).

•

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:

Reset output signal is asserted when the voltage at

VDD drops below the negative voltage threshold

(V_IT-). Reset signal is cleared when VDD rise above

V_IT-plus hysteresis (V_HYS) and the reset time delay

(t_D) 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.

•

Nano supply current : 120 nA (Typ)

High accuracy: ±0.5% (Typ)

Built-in hysteresis (V_HYS): 5% (Typ)

Fixed threshold voltage (V_IT-): 0.8 V to 5.4 V

Designed for a wide range of applications:

•

Operating voltage range : 0.7 V to 6 V

Fixed (V_IT-) voltage: 0.8 V to 5.4 V in 0.1 V steps

Programmable reset time delay (t_D)

– Min time delay: 40 µs (typ) without capacitor

Active-low manual reset (MR)

Additional features: Low power-on reset voltage

(V_POR), built-in glitch immunity protection for VDD,

built-in hysteresis, low open-drain output leakage

current (I_lkg(OD)). TLV840-Q1 is a perfect voltage

monitoring solution for automotive applications and

battery-powered / low-power applications.

•

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)

Device Information

PART NUMBER

PACKAGE ⁽¹⁾

BODY SIZE (NOM)

TLV840-Q1

SOT-23 (5) (DBV)

2.90 mm × 1.60 mm

•

2 Applications

(1) For package details, see the mechanical drawing addendum

at the end of the data sheet.

•

Surround view system, front camera

Automotive gateway

Radar ECU

Automotive head unit

ADAS controller

Emergency call

Telematics control unit

0.4

25°C

-40°C

125°C

3.3 V

5 V

LDO

OUT

0.36

0.32

0.28

0.24

0.2

*R_pu

VDD

Microcontroller

RESET

TLV840MADL29Q1

GND

0.16

0.12

0.08

*R_puonly for open-drain output

Typical Application Circuit

0.5

1.5

2.5

3 3.5

V_DD(V)

4.5

5.5

IDDv

Typical Supply Current

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product Folder Links: TLV840-Q1

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与TLV840MADL22DBVRQ1相关器件

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TLV840MADL30DBVRQ1	TI	获取价格	TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay
TLV840MADL31DBVRQ1	TI	获取价格	TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay
TLV840MADL32DBVRQ1	TI	获取价格	TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay
TLV840MADL40DBVRQ1	TI	获取价格	TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay
TLV840MADL52DBVR	TI	获取价格	TLV840 Nano-Power Ultra-Low Voltage Supervisor with Adjustable Reset Time Delay
TLV840MAPH29DBVRQ1	TI	获取价格	TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay
TLV840MAPL36DBVRQ1	TI	获取价格	TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay
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