SLUSCV6A
April 2017 – February 2018
UCC21225A
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Functional Block Diagram
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
Power Ratings
6.6
Insulation Specifications
6.7
Safety-Related Certifications
6.8
Safety-Limiting Values
6.9
Electrical Characteristics
6.10
Switching Characteristics
6.11
Insulation Characteristics and Thermal Derating Curves
6.12
Typical Characteristics
7
Parameter Measurement Information
7.1
Propagation Delay and Pulse Width Distortion
7.2
Rising and Falling Time
7.3
Input and Disable Response Time
7.4
Programable Dead Time
7.5
Power-up UVLO Delay to OUTPUT
7.6
CMTI Testing
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
VDD, VCCI, and Under Voltage Lock Out (UVLO)
8.3.2
Input and Output Logic Table
8.3.3
Input Stage
8.3.4
Output Stage
8.3.5
Diode Structure in UCC21225A
8.4
Device Functional Modes
8.4.1
Disable Pin
8.4.2
Programmable Dead Time (DT) Pin
8.4.2.1
Tying the DT Pin to VCC
8.4.2.2
DT Pin Left Open or Connected to a Programming Resistor between DT and GND Pins
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
Designing INA/INB Input Filter
9.2.2.2
Select External Bootstrap Diode and Series Resistor
9.2.2.3
Gate Driver Output Resistor
9.2.2.4
Estimate Gate Driver Power Loss
9.2.2.5
Estimating Junction Temperature
9.2.2.6
Selecting VCCI, VDDA/B Capacitor
9.2.2.6.1
Selecting a VCCI Capacitor
9.2.2.6.2
Selecting a VDDA (Bootstrap) Capacitor
9.2.2.6.3
Select a VDDB Capacitor
9.2.2.7
Dead Time Setting Guidelines
9.2.2.8
Application Circuits with Output Stage Negative Bias
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
Certifications
12.2.1
Receiving Notification of Documentation Updates
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
6.12
Typical Characteristics
VDDA = VDDB = 12 V, VCCI = 3.3 V, T
A
= 25°C, No load unless otherwise noted.
Figure 4.
Per Channel Current Consumption vs. Frequency (No Load, VDD = 12 V or 25 V)
Figure 6.
Per Channel Current Consumption (I
VDDA/B
) vs. Frequency (10-nF Load, VDD = 12 V or 25 V)
Figure 8.
Per Channel (I
VDDA/B
) Quiescent Supply Current vs Temperature (No Load, Input Low, No Switching)
A.
Figure 10.
Rising and Falling Times vs. Load (VDD = 12 V)
Figure 12.
Propagation Delay vs. Temperature
A.
Figure 14.
Pulse Width Distortion vs. Temperature
Figure 16.
Propagation Delay Matching (t
DM
) vs. Temperature
Figure 18.
VDD UVLO Threshold vs. Temperature
Figure 20.
IN/DIS Low Threshold
Figure 22.
Dead Time vs. Temperature (with R
DT
= 20 kΩ and 100 kΩ)
Figure 5.
Per Channel Current Consumption (I
VDDA/B
) vs. Frequency (1-nF Load, VDD = 12 V or 25 V)
Figure 7.
Per Channel (I
VDDA/B
) Supply Current Vs. Temperature (No Load, Different Switching Frequencies)
A.
Figure 9.
I
VCCI
Quiescent Supply Current vs Temperature (No Load, Input Low, No Switching)
Figure 11.
Output Resistance vs. Temperature
Figure 13.
Propagation Delay vs. VCCI
Figure 15.
Propagation Delay Matching (t
DM
) vs. VDD
Figure 17.
VDD UVLO Hysteresis vs. Temperature
Figure 19.
IN/DIS Hysteresis vs. Temperature
Figure 21.
IN/DIS High Threshold
Figure 23.
Dead Time Matching vs. Temperature (with R
DT
= 20 kΩ and 100 kΩ)