TLV4021 Comparator Datasheet

TLV4021 Datasheet PDF, Equivalent


Part Number

TLV4021

Description

Low-Power Comparator

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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TLV4021
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TLV4021, TLV4031, TLV4041, TLV4051
SNVSB04A – MARCH 2019 – REVISED MAY 2019
TLV40x1 Small-Size, Low-Power Comparator with Precision Threshold
1 Features
1 Wide supply voltage range: 1.6 V to 5.5 V
• Adjustable thresholds down to 0.2 V and 1.2 V
• Fixed threshold of 3.2 V
• High threshold accuracy
– 0.5% at 25°C
– 1% over temperature
• Low quiescent current: 2 µA
• Propagation delay: 360 ns
• Push-pull and open-drain output options
• Known startup conditions
• Non-inverting and inverting input options
• Precision hysteresis
• Temperature range: –40°C to +125°C
• Packages:
– 0.73 mm × 0.73 mm DSBGA (4-bump)
2 Applications
• Self-diagnostics
• Lithium ion battery monitoring
• Battery management and protection
• Current and voltage sensing
• Analog front end
• Power management
• Non-isolated power supply
• Point of load regulators
• DC/DC power supply
• AC/DC power supply
• System control and monitoring
3 Description
The TLV40x1 devices are low-power, high-accuracy
comparators with precision thresholds and a
propagation delay of 360 ns. The comparators are
available in an ultra-small, DSBGA package
measuring 0.73 mm × 0.73 mm, making the TLV40x1
applicable for space-critical designs like portable or
battery-powered electronics where low-power and
fast response to changes in operating conditions is
required.
The factory-trimmed switching thresholds and
precision hysteresis combine to make the TLV40x1
appropriate for voltage and current monitoring in
harsh, noisy environments where slow moving input
signals must be converted into clean digital outputs.
Similarly, brief glitches on the input are rejected
thereby ensuring stable output operation without false
triggering.
The TLV40x1R1/2 are available in multiple
configurations allowing system designers to achieve
their desired output response. For example, the
TLV4021 and TLV4031 feature an open-drain output
stage while the TLV4041 and TLV4051 feature a
push-pull output stage. Furthermore, the TLV4021
and TLV4041 offer a non-inverting input, while the
TLV4031 and TLV4051 have an inverting input.
Device Information (1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV40x1Ry,
TLV4021S5
DSBGA (4)
0.73 mm × 0.73 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Figure 1. Continuous
Voltage
Monitor
VMON
IN
VMON
VS
VPU
V+
+ OUT
t
0.2V
s5
TLV4041R2
IN V+
+ OUT
t
1.2V
s5
TLV4021S5
1
Table 1. TLV40x1 Family of Internal Reference
Comparators
DEVICE
TLV4021R2
TLV4021R1
TLV4031R2
TLV4031R1
TLV4041R2
TLV4041R1
TLV4051R2
TLV4051R1
TLV4021S5
SWITCHING
THRESHOLDS
0.2V, 0.18V
1.2V, 1.18V
0.2V, 0.18V
1.2V, 1.18V
0.2V, 0.18V
1.2V, 1.18V
0.2V, 0.18V
1.2V, 1.18V
3.254V, 3.2V
INPUT/
OUTPUT
CONFIGURATION
OD / Non-Inverting
OD / Non-Inverting
OD / Inverting
OD / Inverting
PP / Non-Inverting
PP / Non-Inverting
PP / Inverting
PP / Inverting
OD / Non-Inverting
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.

TLV4021
TLV4021, TLV4031, TLV4041, TLV4051
SNVSB04A – MARCH 2019 – REVISED MAY 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Switching Characteristics .......................................... 6
6.7 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 13
7.1 Overview ................................................................. 13
7.2 Functional Block Diagram ....................................... 14
7.3 Feature Description................................................. 15
7.4 Device Functional Modes........................................ 15
8 Application and Implementation ........................ 18
8.1 Application Information............................................ 18
8.2 Typical Application .................................................. 20
8.3 What to Do and What Not to Do ............................ 22
9 Power Supply Recommendations...................... 23
10 Layout................................................................... 23
10.1 Layout Guidelines ................................................. 23
10.2 Layout Example .................................................... 23
11 Device and Documentation Support ................. 24
11.1 Related Links ........................................................ 24
11.2 Receiving Notification of Documentation Updates 24
11.3 Community Resources.......................................... 24
11.4 Trademarks ........................................................... 24
11.5 Electrostatic Discharge Caution ............................ 24
11.6 Glossary ................................................................ 24
12 Mechanical, Packaging, and Orderable
Information ........................................................... 25
4 Revision History
Changes from Original (October 2018) to Revision A
Page
• Changed Product Preview to Production Data ...................................................................................................................... 1
2 Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Product Folder Links: TLV4021 TLV4031 TLV4041 TLV4051


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TLV4021, TLV4031, TLV4041, TLV4 051 SNVSB04A – MARCH 2019 – REVISED MAY 2019 TLV40x1 Small-Size, Low-Power Comparator with Precision Threshold 1 Features •1 Wide supply voltage rang e: 1.6 V to 5.5 V • Adjustable thresh olds down to 0.2 V and 1.2 V • Fixed threshold of 3.2 V • High threshold a ccuracy – 0.5% at 25°C – 1% over t emperature • Low quiescent current: 2 µA • Propagation delay: 360 ns • Push-pull and open-drain output options • Known startup conditions • Non-i nverting and inverting input options Precision hysteresis • Temperature range: –40°C to +125°C • Packages : – 0.73 mm × 0.73 mm DSBGA (4-bump) 2 Applications • Self-diagnostics Lithium ion battery monitoring • Ba ttery management and protection • Cur rent and voltage sensing • Analog fro nt end • Power management • Non-iso lated power supply • Point of load regulators • DC/DC power supply • AC/DC power supply • System control and monitorin.
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