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TLV840-Q1_V03 PDF预览

TLV840-Q1_V03

更新时间: 2024-09-21 02:48:31
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德州仪器 - TI /
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描述
TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay

TLV840-Q1_V03 数据手册

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TLV840-Q1  
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 (tp_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  
(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.  
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)  
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.  
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  
IN  
LDO  
OUT  
0.36  
0.32  
0.28  
0.24  
0.2  
*Rpu  
VDD  
VDD  
Microcontroller  
RESET  
CT  
RESET  
TLV840MADL29Q1  
MR  
GND  
0.16  
0.12  
0.08  
*Rpu only for open-drain output  
Typical Application Circuit  
0.5  
1
1.5  
2
2.5  
3 3.5  
VDD (V)  
4
4.5  
5
5.5  
6
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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