SLUSD48C
July 2018 – March 2022
UCC24624
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Description, Continued
6
Pin Configuration and Functions
Pin 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
7.6
Timing Requirements
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Power Management
8.3.2
Synchronous Rectifier Control
8.3.3
Turn-off Threshold Adjustment
8.3.4
Noise Immunity
8.3.4.1
On-Time Blanking
8.3.4.2
Off-Time Blanking
8.3.4.3
Two-Channel Interlock
8.3.4.4
SR Turn-on Re-arm
8.3.4.5
Adaptive Turn-on Delay
8.3.5
Gate Voltage Clamping
8.3.6
Standby Mode
8.4
Device Functional Modes
8.4.1
UVLO Mode
8.4.2
Standby Mode
8.4.3
Run Mode
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
MOSFET Selection
9.2.2.2
Snubber Design
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
Development Support
12.1.1.1
Custom Design With WEBENCH® Tools
12.2
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
7.7
Typical Characteristics
Figure 7-1
UVLO Thresholds vs Temperature
Figure 7-3
SR Turn-on Threshold Voltage vs Temperature
Figure 7-5
Proportional Gate Drive Threshold vs Temperature
I
LOAD_REG
= 10 mA
Figure 7-7
REG Dropout in Pass-through Mode vs Temperature
Figure 7-9
SR Turn-on Delay Time vs Temperature
Figure 7-11
Standby Current vs Temperature
C
VG1
= C
VG2
= 0 pF
V
VD1
= V
VD2
= 1 V
Figure 7-2
Bias Supply Current vs Temperature (No Switching)
Figure 7-4
SR Turn-off Threshold Voltages vs Temperature
Figure 7-6
REG Pin Voltage vs Temperature at Different Loading Conditions
Figure 7-8
Blanking Time vs Temperature
Figure 7-10
SR Turn-off Propagation Delay vs Temperature
Figure 7-12
VSS Pin Offset Current vs Temperature