SLVSDF9A
December 2017 – January 2019
TPS23523
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics
7
Parameter Measurement Information
7.1
Relationship between Sense Voltage, Gate Current, and Timer
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Current Limit
8.3.1.1
Programming the CL Switch-Over Threshold
8.3.1.2
Setting Up the PROG Pin
8.3.1.3
Programming CL1
8.3.1.4
Programming CL2
8.3.2
Soft Start Disconnect
8.3.3
Timer
8.3.4
Gate 2
8.3.5
OR-ing
8.4
Device Functional Modes
8.4.1
OFF State
8.4.2
Insertion Delay State
8.4.3
Start-up State
8.4.4
Normal Operation State
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Selecting RSNS
9.2.2.2
Selecting Soft Start Setting: CSS and CSS,VEE
9.2.2.3
Selecting VDS Switch Over Threshold
9.2.2.4
Timer Selection
9.2.2.5
MOSFET Selection and SOA Checks
9.2.2.6
Input Cap, Input TVS, and OR-ing FET selection
9.2.2.7
EMI Filter Consideration
9.2.2.8
Undervoltage and Overvoltage Settings
9.2.2.9
Choosing RVCC and CVCC
9.2.2.10
Power Good Interface to Downstream DC/DC
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Receiving Notification of Documentation Updates
12.4
Community Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|16
MPDS361A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsdf9a_oa
slvsdf9a_pm
9.2.3
Application Curves
Figure 17.
Start Up (Vin = 54 V)
Figure 19.
Start Up (Vin = 54 V)
Figure 21.
Start Up (Vin = 60 V)
Zoomed In
Figure 23.
Hot Short (Vin = 54 V)
Figure 25.
Load Step Into Current Limit
Figure 27.
Start Into Short
5-A load
Figure 29.
Short on Vin
Figure 31.
Reverse Hook Up
5-A load
Figure 33.
1-ms Brown Out
6-A load, per IEC61000-4-5
Figure 35.
2 kV (2 Ω) Lightning Surge
6-A load, per IEC61000-4-5
Figure 37.
-2 kV (2 Ω) Lightning Surge
Figure 18.
Start Up (Vin = 54 V)
Figure 20.
Start Up (Vin = 38 V)
Figure 22.
Hot Short (Vin = 54 V)
Figure 24.
Gradual Over Current
Figure 26.
Load Step Into Current Limit
Figure 28.
Start Into Short
5-A load
Figure 30.
Short on Vin
Figure 32.
Reverse Hook Up
6-A load, per IEC61000-4-5
Figure 34.
2 kV (2 Ω) Lightning Surge
6-A load, per IEC61000-4-5
Figure 36.
-2 kV (2 Ω) Lightning Surge