SLVS933D
July 2009 – December 2020
TPS23753A
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Product Information
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics: Controller Section Only
7.6
Electrical Characteristics: PoE and Control
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Pin Description
8.3.1.1
APD
8.3.1.2
BLNK
8.3.1.3
CLS
8.3.1.4
CS
8.3.1.5
CTL
8.3.1.6
DEN
8.3.1.7
FRS
8.3.1.8
GATE
8.3.1.9
RTN
8.3.1.10
VB
8.3.1.11
VC
8.3.1.12
VDD
8.3.1.13
VDD1
8.3.1.14
VSS
8.4
Device Functional Modes
8.4.1
Threshold Voltages
8.4.2
PoE Start-Up Sequence
8.4.3
Detection
8.4.4
Hardware Classification
8.4.5
Maintain Power Signature (MPS)
8.4.6
TPS23753A Operation
8.4.6.1
Start-Up and Converter Operation
8.4.6.2
PD Self-Protection
8.4.6.3
Converter Controller Features
8.4.7
Special Switching MOSFET Considerations
8.4.8
Thermal Considerations
8.4.9
FRS and Synchronization
8.4.10
Blanking – RBLNK
8.4.11
Current Slope Compensation
8.4.12
Adapter ORing
8.4.13
Protection
8.4.14
Frequency Dithering for Conducted Emissions Control
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Support Resources
12.3
Electrostatic Discharge Caution
12.4
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|14
MPDS360
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvs933d_oa
slvs933d_pm
9.2.3
Application Curves
Figure 9-2
PoE Start-Up Sequence
Figure 9-3
Power Up and Start