SLVS905B
December 2008 – July 2024
TLV431A-Q1
,
TLV431B-Q1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
Pin Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Thermal Information
5.4
Recommended Operating Conditions
5.5
Electrical Characteristics for TLV431A-Q1
5.6
Electrical Characteristics for TLV431B-Q1
5.7
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.4
Device Functional Modes
7.4.1
Open Loop (Comparator)
7.4.2
Closed Loop
8
Applications and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Comparator with Integrated Reference (Open Loop)
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Basic Operation
8.2.1.2.2
Overdrive
8.2.1.2.3
Output Voltage and Logic Input Level
8.2.1.2.3.1
Input Resistance
8.2.1.3
Application Curves
8.2.2
Shunt Regulator/Reference
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
Programming Output/Cathode Voltage
8.2.2.2.2
Total Accuracy
8.2.2.2.3
Stability
8.2.2.3
Application Curve
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DBV|5
MPDS018T
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvs905b_oa
slvs905b_pm
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 range
Low-voltage operation, V
REF
= 1.24V
Adjustable output voltage, V
O
= V
REF
to 6V
Reference voltage tolerances at 25°C
0.5% for TLV431B
1% for TLV431A
Typical temperature drift
11mV (–40°C to 125°C)
Low operational cathode current, 80µA typical
0.25Ω Typical output impedance
See
TLVH431
and
TLVH432
for:
Wider V
KA
(1.24V to 18V) and I
K
(80mA)
Multiple pinouts for SOT-23-3 and SOT-89 packages