UCC21521DWR vs UCC21550 Comparison
Detailed side-by-side comparison of UCC21521DWR by Texas Instruments and UCC21550 by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | UCC21521DWR | UCC21550 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Power MOSFET Drivers | Power MOSFET Drivers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.15 | $1.25 |
| Channel Count | 2 | — |
| Peak Source Current | 4 A | 4 A |
| Peak Sink Current | 6 A | 6 A |
| Isolation Rating | 5700 Vrms | 5000 Vrms (reinforced, UL1577) |
| CMTI | 100 V/ns (minimum) | [DATA_NEEDED: common-mode transient immunity] |
| Propagation Delay | 19 ns (typical) | [DATA_NEEDED: typical propagation delay] |
| Delay Matching | 5 ns (maximum) | — |
| Pulse-Width Distortion | 6 ns (maximum) | — |
| Minimum Pulse Width | 10 ns | — |
| Max Switching Frequency | 5 MHz | — |
| Isolation Technology | Capacitive coupling | Capacitive (silicon dioxide) |
| Input Threshold | TTL and CMOS compatible (3.3 V logic) | — |
| Enable / Disable Pin | Yes (DIS) | — |
| Operating Temperature | -40C to +125C | -40C to +150C |
| Package | SOIC-16 (DW) | 16-SOIC (DW, 300 mil) |
| Mounting Type | Surface Mount | Surface Mount |
| Configurations | Dual low-side, dual high-side, or half-bridge | Dual low-side, dual high-side, or half-bridge |
| RoHS Status | Compliant | Compliant |
| Channels | — | 2 (dual-channel) |
| Supported Transistors | — | MOSFET, SiC, GaN, IGBT |
| Dead Time | — | Programmable via DT pin resistor |
| UVLO | — | Yes, on input and output supplies (A/B/C grade options) |
| Automotive Qualification | — | UCC21550x-Q1 family AEC-Q100 qualified |