TI-TLV840-Q1.pdf
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TLV840-Q1 Nano-Power Voltage Supervisor with Adjustable Reset Time Delay
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 (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)
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 (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 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
(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.
Device Information
PART NUMBER PACKAGE
(1)
BODY SIZE (NOM)
TLV840-Q1 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.
TLV840MADL29Q1
VDD
GND
RESET
Microcontroller
VDD
5 V
RESET
LDO
3.3 V
CT
IN
OUT
*R
pu
*R
pu
only for open-drain output
MR
Typical Application Circuit
V
DD
(V)
I
DD
(µA)
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
0.08
0.12
0.16
0.2
0.24
0.28
0.32
0.36
0.4
IDDv
25°C
-40°C
125°C
Typical Supply Current
www.ti.com
TLV840-Q1
SNVSBY3A – NOVEMBER 2020 – REVISED APRIL 2021
Copyright © 2021 Texas Instruments Incorporated
Submit Document Feedback
1
Product Folder Links: TLV840-Q1
TLV840-Q1
SNVSBY3A – NOVEMBER 2020 – REVISED APRIL 2021
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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