Datasheet > TLV840CADL40DBVR

TLV840CADL40DBVR

更新时间： 2024-09-21 02:46:55

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德州仪器 - TI		/
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TLV840 Nano-Power Ultra-Low Voltage Supervisor with Adjustable Reset Time Delay

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TLV840CADL40DBVR 数据手册

TLV840

www.ti.com

SNVSBC3C – DECEMBER 2019 – REVISED SEPTEMBER 2020

TLV840 Nano-Power Ultra-Low Voltage Supervisor with Adjustable Reset Time Delay

1 Features

3 Description

•

Operating voltage range : 0.7 V to 6 V

Nano supply current : 120 nA (Typical)

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

– Threshold voltages available in 100mV steps

– High accuracy: ±0.5% (Typical)

– Built-in hysteresis (V_HYS): 5% (Typical)

Reset time delay (t_D): capacitor-based

programmable (TLV840C, TLV840M)

– Minimum time delay: 40 µs (typical) without

capacitor

The TLV840 family of voltage supervisors or reset ICs

can operate at high voltage levels while maintaining

very low quiescent current across the whole VDD and

temperature range. TLV840 offers best combination of

low power consumption, high accuracy and low

propagation delay (t_{p_HL}= 30 µs typical).

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 TLV840C and TLV840M. For a minimum

reset delay time the CT pin can be left floating.

TLV840N does not offer a programmable delay and

offers fixed reset delay timing options: 40 µs, 2 ms, 10

ms, 30 ms, 50 ms, 80 ms, 100 ms, 150 ms, 200 ms.

•

Active-low manual reset (MR) (TLV840M)

Four output topologies:

– TLV840xxDL: open-drain, active-low (RESET)

– TLV840xxPL: push-pull, active-low (RESET)

– TLV840xxDH: open-drain, active-high (RESET)

– TLV840xxPH: push-pull, active-high (RESET)

Wide temperature range: –40°C to +125°C

Package: SOT23-5 (DBV)

•

Additional features: Low power-on reset voltage

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

built-in hysteresis, low open-drain output leakage

2 Applications

current (I_lkg(OD)). TLV840 is

perfect voltage

•

Motor Drives

monitoring solution for industrial applications and

battery-powered / low-power applications.

Factory Automation and Control

Home Theater and Entertainment

Electronic Point of Sale

Grid Infrastructure

Data Center and Enterprise Computing

Multifunction Printer

Device Information

PART NUMBER

TLV840

PACKAGE⁽¹⁾

BODY SIZE (NOM)

SOT-23 (5) (DBV)

2.90 mm × 1.60 mm

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

at the end of the data sheet.

0.4

25°C

-40°C

125°C

0.36

0.32

0.28

0.24

0.2

3.3 V

5 V

LDO

OUT

*R_pu

VDD

Microcontroller

RESET

TLV840CADL29

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.

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Product Folder Links: TLV840

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TLV840MADL29DBVR	TI	获取价格	TLV840 Nano-Power Ultra-Low Voltage Supervisor with Adjustable Reset Time Delay
TLV840MADL30DBVR	TI	获取价格	TLV840 Nano-Power Ultra-Low Voltage Supervisor with Adjustable Reset Time Delay
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
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