UCC21530 - 4A/6A Isolated Dual-Channel Gate Driver | TI
MPN: UCC21530 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.15 | $41.50 |
| 100 | $3.21 | $321.00 |
| 500 | $2.87 | $1,435.00 |
| 1,000 | $2.56 | $2,560.00 |
| 3,000 | $2.41 | $7,230.00 |
Drop-in alternatives for UCC21530 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
UCC21530-Q1
β Drop-Inπ Reference alternative (not in catalog)
UCC21540
β Drop-Inβ In Stock
$1.82 / Unit
View Datasheet βUCC21520
β Drop-Inβ In Stock
$1.79 / Unit
View Datasheet βUCC21521
β Drop-Inβ In Stock
$1.82 / Unit
View Datasheet βUCC21550
β Drop-Inβ In Stock
$1.25 / Unit
View Datasheet βUCC21530 Maximum Ratings & Electrical Characteristics
| Output Type | Isolated dual-channel gate driver |
| Peak Source Current | 4 A |
| Peak Sink Current | 6 A |
| Isolation Voltage | 5.7 kVrms (reinforced) |
| CMTI | 125 V/ns (minimum) |
| Switching Frequency | Up to 5 MHz |
| Package | 14-SOIC (DWK) |
| Channel-to-Channel Spacing | 3.3 mm |
| Input Logic | TTL/CMOS compatible |
| Enable Pin | Yes |
| Programmable Dead Time | Yes (DT pin) |
| Propagation Delay | Best-in-class per TI ([DATA_NEEDED: propagation delay ns]) |
| Pulse-Width Distortion | Best-in-class per TI ([DATA_NEEDED: PWD ns]) |
| UVLO | On input and output sides |
| Isolation Technology | Capacitive isolation |
| Number of Channels | 2 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant per distributor listing |
UCC21530 Pin Configuration
| Pin 1 | INA β Input signal for channel A (TTL/CMOS compatible) |
| Pin 2 | INB β Input signal for channel B (TTL/CMOS compatible) |
| Pin 3 | DIS β Disable/Enable input for outputs |
| Pin 4 | VCCI β Input-side supply voltage |
| Pin 5 | GNDI β Input-side ground |
| Pin 6 | DT β Programmable dead-time control pin |
| Pin 7 | NC β No connect |
| Pin 8 | GNDB β Channel B ground |
| Pin 9 | VB β Channel B bias supply |
| Pin 10 | OUTB β Channel B gate driver output |
| Pin 11 | VDDB β Channel B output supply |
| Pin 12 | VSSB β Channel B return |
| Pin 13 | OUTA β Channel A gate driver output |
| Pin 14 | VDDA β Channel A output supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
UCC21530 is suitable for 6 applications: Three-Phase Motor Drives, Solar Inverters, EV Onboard Chargers, Uninterruptible Power Supplies (UPS), Server Power Supplies, Industrial Power Systems.
Three-Phase Motor Drives
The UCC21530 provides isolated 4A/6A gate drive for IGBT and SiC power stages in three-phase motor drives, with 5.7kVrms reinforced isolation and 125V/ns CMTI to prevent false triggering during high dv/dt switching transients. Its programmable dead time reduces shoot-through risk.
Recommended
Solar Inverters
In photovoltaic inverters, the UCC21530 drives half-bridge and full-bridge IGBT/SiC MOSFET stages up to 5MHz, enabling high-efficiency MPPT and grid-tie conversion. The 5.7kVrms isolation separates the controller from line-voltage power stages, while 4A/6A peak current ensures fast switching.
Recommended
EV Onboard Chargers
For electric vehicle onboard chargers, the UCC21530 offers automotive-grade Q1 variants and reinforced isolation to meet high-voltage safety requirements. The 125V/ns CMTI and programmable dead time support efficient LLC and full-bridge PFC topologies.
Recommended
Uninterruptible Power Supplies (UPS)
UPS systems require robust isolated gate drive. The UCC21530's 4A/6A output, 5.7kVrms isolation, and fast propagation delay improve inverter efficiency and dynamic response. Enable control simplifies power sequencing during mains failover.
Recommended
Server Power Supplies
The UCC21530 drives high-frequency PFC and DC-DC stages in server power supplies. Low propagation delay and high CMTI reduce switching losses in GaN/SiC converters, while 3.3mm channel-to-channel spacing aids compact layout.
Recommended
Industrial Power Systems
The UCC21530 supports industrial power converters, welders, and motor drives with 4A/6A peak current and UVLO on both sides. Protection features enable reliable operation under transient load conditions in factory environments.
Recommended
Recommended Products Summary
Engineering reference data for UCC21530 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | UCC21530-Q1 | UCC21540 | UCC21520 |
|---|---|---|---|---|
| Package | 14-SOIC (DWK) | 14-SOIC (DWK) same | 14-SOIC (DWK) same | 14-SOIC (DWK) same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Peak Source Current | 4 A | 4 A | 4 A | 4 A |
| Peak Sink Current | 6 A | 6 A | 6 A | 4 A |
| Isolation Voltage | 5.7 kVrms reinforced | 5.7 kVrms reinforced | 5.7 kVrms reinforced | 5.7 kVrms reinforced |
| CMTI | 125 V/ns min | 125 V/ns min | 125 V/ns min | 100 V/ns min |
| Enable Pin | Yes | Yes | Yes | Yes |
| Automotive Grade | No (standard) | AEC-Q100 | No | No |
Key Differentiators
- Higher 6A sink current versus UCC21520's 4A (vs UCC21520)
- 125V/ns CMTI (vs UCC21520)
- Automotive-qualified variant available (vs UCC21540)
Design Notes
Minimize parasitic inductance in the gate drive loop by placing the UCC21530 close to the power transistor and using short, wide traces. Locate bypass capacitors for VDDA/VDDB and VCCI as close as possible to the IC pins. For SiC MOSFETs, separate the source return to avoid coupling dv/dt noise back to the controller side.
The 14-SOIC (DWK) package dissipates heat primarily through the output stage and ground pins. The two output channels are 4A/6A peak, so at high switching frequency, calculate total gate-charge losses and add PCB copper for the GNDA/GNDB returns. Consider airflow for continuous operation above 1MHz.
Set dead time using the DT pin according to the power transistor's turn-off delay; too-small dead time causes shoot-through, while too-large dead time increases distortion. Verify UVLO thresholds against your input and output supply rails during power-up. Do not leave the DIS pin floating.
Compliance Information
Distributor listings indicate RoHS compliant lead-free package. The Q1 variant is AEC-Q100 qualified. Standard UCC21530 is not automotive qualified.
