TLV840-Q1_V04中文资料德州仪器数据手册PDF规格书

1 Features

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)

2 Applications

• Surround view system, front camera

• Automotive gateway

• Radar ECU

• Automotive head unit

• ADAS controller

• Emergency call

• Telematics control unit

3 Description

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.