SLUSCO3B September 2016 – December 2021 UCC21521
PRODUCTION DATA
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and 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 Curves
- 6.12 Typical Characteristics
- 7 Parameter Measurement Information
- 8 Detailed Description
-
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 its Series Resistor
- 9.2.2.3 Gate Driver Output Resistor
- 9.2.2.4 Gate to Source Resistor Selection
- 9.2.2.5 Estimate Gate Driver Power Loss
- 9.2.2.6 Estimating Junction Temperature
- 9.2.2.7 Selecting VCCI, VDDA/B Capacitor
- 9.2.2.8 Dead Time Setting Guidelines
- 9.2.2.9 Application Circuits with Output Stage Negative Bias
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
- DW|16
Thermal pad, mechanical data (Package|Pins)
- DW|16
Orderable Information
6.12 Typical Characteristics
VDDA = VDDB = 12 V for 5 V and 8V UVLO, VDDA = VDDB = 15 V for 12V UVLO, VCCI = 3.3 V, TA = 25°C, No load unless otherwise noted.
Figure 6-4 Per
Channel Current Consumption vs. Frequency (No Load, VDD = 12 V or 25
V)
Figure 6-6 Per
Channel Current Consumption (IVDDA/B) vs. Frequency (10-nF Load,
VDD = 12 V or 25 V)
Figure 6-8 Per
Channel (IVDDA/B) Quiescent Supply Current vs Temperature (No
Load, Input Low, No Switching)
Figure 6-10 UCC21521ADW and UCC21521DW Rising and Falling Times vs. Load (VDD = 12 V)
Figure 6-12 Propagation Delay vs. Temperature
Figure 6-14 Pulse Width Distortion vs. Temperature
Figure 6-16 Propagation Delay Matching (tDM) vs. Temperature
Figure 6-18 UCC21521ADW UVLO Threshold vs. Temperature
Figure 6-20 UCC21521DW UVLO Threshold vs. Temperature
Figure 6-22 UCC21521CDW UVLO Threshold vs. Temperature
Figure 6-24 INA/B Low Threshold
Figure 6-26 EN Threshold Hysteresis vs. Temperature
Figure 6-28 EN High Threshold
Figure 6-30 Dead Time Matching vs. Temperature (with RDT = 20 kΩ and 100 kΩ)
Figure 6-5 Per
Channel Current Consumption (IVDDA/B) vs. Frequency (1-nF Load,
VDD = 12 V or 25 V)
Figure 6-7 Per
Channel (IVDDA/B) Supply Current Vs. Temperature (VDD=12V, No
Load, Different Switching Frequencies)
Figure 6-9 IVCCI Quiescent Supply Current vs Temperature (No Load,
Input Low, No Switching)
Figure 6-11 Output Resistance vs. Temperature
Figure 6-13 Propagation Delay vs. VCCI
Figure 6-15 Propagation Delay Matching (tDM) vs. VDD
Figure 6-17 UCC21521ADW UVLO Hysteresis vs. Temperature
Figure 6-19 UCC21521DW UVLO Hysteresis vs. Temperature
Figure 6-21 UCC21521CDW UVLO Hysteresis vs. Temperature
Figure 6-23 INA/B Hysteresis vs. Temperature
Figure 6-25 INA/B High Threshold
Figure 6-27 EN Low Threshold
Figure 6-29 Dead Time vs. Temperature (with RDT = 20 kΩ and 100 kΩ)
Figure 6-31 Typical Output Waveforms (VDD=12V)