UCC21530Q-Q1 - 4A/6A 5.7kVRMS Isolated Gate Driver | TI
MPN: UCC21530Q-Q1 ✓ Hoạt độngUCC21530Q-Q1 Tóm tắt
An isolated gate driver is a power management IC that transfers logic-level PWM control signals across a galvanic isolation barrier to drive the gate of a high-side or low-side power switch floating at high voltage. Within the power-electronics hierarchy (gate driver -> isolated driver IC -> power management IC -> semiconductor), the UCC21530-Q1 occupies the critical interface between a microcontroller such as the TMS320F28004x C2000 family and the power stage.
Key features include best-in-class propagation delay and pulse-width distortion, programmable dead time via a single DT pin resistor, a common-mode transient immunity (CMTI) of at least 125V/ns for operation on fast-switching GaN and SiC bridges, and TTL/CMOS-compatible input thresholds independent of the VDDI supply. An enable pin allows global shutdown, and both outputs can be interlocked for half-bridge configurations.
The capacitive isolation architecture supports a maximum repetitive peak isolation voltage suitable for 800V-class automotive systems such as on-board chargers and traction inverters, though designers should verify creepage requirements against the 3mm package spacing. Wide VDDI operation on the output side accommodates 5V-to-20V gate-drive rails needed for SiC MOSFETs.
Typical applications include automotive traction inverters, 800V on-board chargers (OBC), DC-DC converters, motor drives, and solar inverters. Pairing the driver with SiC MOSFETs such as the LMG3422 GaFET ecosystem or discrete SiC switches yields low-loss, high-frequency power stages.
Design tip: size the DT-pin resistor precisely to set dead time, and place a low-ESR decoupling network (1uF plus 100nF) directly at VDDA and VDDB to sustain 4A/6A peak gate currents without droop.
Bộ thay thế dễ dàng lắp đặt cho UCC21530Q-Q1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với UCC21530Q-Q1 (cùng hình factor và footprint) — khác nhau ở Package, Isolation Rating, Isolation Technology, Input Threshold, UVLO.
UCC21530
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →UCC21530BQDWKRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
UCC21520Q-Q1
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →UCC21521Q-Q1
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →UCC21520
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →UCC21530Q-Q1 Tỷ lệ tối đa & tính chất điện
| Output Peak Current (Source) | 4 A |
| Output Peak Current (Sink) | 6 A |
| Isolation Rating | 5.7 kVRMS (reinforced) |
| Channel-to-Channel Spacing | 3.3 mm |
| CMTI (Common-Mode Transient Immunity) | 125 V/ns (minimum) |
| Maximum Switching Frequency | 5 MHz |
| Number of Channels | 2 |
| Configuration | Low-side, high-side, half-bridge, dual low-side |
| Dead Time | Programmable via DT pin resistor |
| N Nap kích hoạt | Yes |
| Input Threshold | TTL and CMOS compatible |
| Driven Device Types | IGBT, Si MOSFET, SiC MOSFET |
| Qualification | AEC-Q100 (automotive) |
| Hộp | SOIC-14 (DWK) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân UCC21530Q-Q1
| Chân 1 | GNDI — Input-side ground reference |
| Chân 2 | INA — Input channel A (TTL/CMOS compatible) |
| Chân 3 | INB — Input channel B (TTL/CMOS compatible) |
| Chân 4 | DT — Dead-time programming pin (external resistor) |
| Chân 5 | DIS — Disable/enable control |
| Chân 6 | VDDI — Input-side supply voltage |
| Chân 7 | NC — No connect (isolation barrier region) |
| Chân 8 | VDDA — Output A supply voltage (isolated side) |
| Chân 9 | OUTA — Gate drive output A |
| Chân 10 | GND — Output-side ground for channel A |
| Chân 11 | GND — Output-side ground for channel B |
| Chân 12 | OUTB — Gate drive output B |
| Chân 13 | VDDB — Output B supply voltage (isolated side) |
| Chân 14 | NC — No connect |
Ứng dụng tiêu biểu
UCC21530Q-Q1 phù hợp cho 6 Áp dụngs: Automotive Traction Inverter, 800V On-Board Charger (OBC), SiC MOSFET Half-Bridge Power Stage, Industrial Motor Drives, Solar String Inverters, Automotive DC-DC Converters and HEV/EV Auxiliaries.
Automotive Traction Inverter
In EV traction inverters, the UCC21530-Q1 drives the gate of SiC MOSFET or IGBT half-bridge legs switching 400V-to-800V DC buses. Its 4A source and 6A sink currents charge and discharge large gate charges quickly, while the guaranteed 125V/ns CMTI prevents false turn-on from high dV/dt switch-node transitions. Programmable dead time via the DT pin lets engineers optimize efficiency versus shoot-through margin, and AEC-Q100 qualification supports automotive production.
Được đề xuất
800V On-Board Charger (OBC)
In 800V OBC PFC and LLC stages, the UCC21530-Q1 provides reinforced 5.7kVRMS isolation between the low-voltage controller domain and the high-voltage power stage. The TTL/CMOS-compatible inputs interface directly to C2000 PWM outputs, and up to 5MHz capability supports high-frequency LLC designs that shrink magnetics. For systems whose isolation standard demands more than the roughly 3mm package creepage, the enhanced-creepage UCC21530B-Q1 variant should be evaluated, as noted in TI E2E application discussions.
Được đề xuất
SiC MOSFET Half-Bridge Power Stage
SiC MOSFETs require gate drivers with high CMTI, fast propagation, and low pulse-width distortion to exploit their fast switching. The UCC21530-Q1 delivers best-in-class propagation delay and PWM distortion, and its wide output-side supply range supports the +15V/-xV gate-drive schemes typical of SiC. The 6A sink current rapidly pulls gate charge out during turn-off, minimizing switching losses at frequencies up to 5MHz in hard-switched bridges.
Được đề xuất
Industrial Motor Drives
In industrial three-phase motor inverters, the UCC21530-Q1 drives IGBT or SiC gate terminals for each phase leg while the reinforced isolation barrier protects the control electronics from mains-referenced potentials. Its interlock and programmable dead time prevent shoot-through in half-bridge configurations, and the enable pin permits safe fault shutdown. Industrial-grade UCC21530 offers the same performance where AEC-Q100 is unnecessary, allowing one layout to serve both markets.
Được đề xuất
Solar String Inverters
Photovoltaic string inverter boost and DC-AC stages benefit from the UCC21530-Q1's reinforced isolation and high-frequency capability. Boost switches switching at 50-150kHz keep inductor size and cost down while the driver's low pulse-width distortion preserves duty-cycle accuracy across the isolation barrier, improving MPPT efficiency. The 5.7kVRMS barrier satisfies the insulation coordination typically required between the PV input and grid-tied control circuitry.
Được đề xuất
Automotive DC-DC Converters and HEV/EV Auxiliaries
Auxiliary automotive DC-DC converters (for example 400V-to-12V in HEV/EV systems) use the UCC21530-Q1 to drive bridge switches in phase-shifted full-bridge or LLC topologies. AEC-Q100 grade 1 suitability, 125V/ns CMTI, and programmable dead time enable robust, efficient conversion, while the enable pin supports system-level fault handling. XAIPART carries companion TI power-management parts such as LM5176QPWPRQ1 for the low-voltage side and UCC25800-Q1 bias supplies.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho UCC21530Q-Q1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | UCC21530 | UCC21530BQDWKRQ1 | UCC21520Q-Q1 |
|---|---|---|---|---|
| Package | SOIC-14 (DWK) | SOIC-14 (DWK) - same | SOIC-14 (DWK) - same, enhanced creepage | SOIC-14 (DWK) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Dead Time | Programmable (DT pin) | Programmable (DT pin) | Programmable (DT pin) | Family-configured options |
| AEC-Q100 | Qualified (automotive) | Not qualified (industrial) | Qualified (automotive) | Qualified (automotive) |
Bảo phân biệt quan trọng
- AEC-Q100 automotive qualification (vsUCC21530)
- Programmable dead time with one resistor (vsUCC21520Q-Q1)
- 6A sink current capability (vsUCC21520Q-Q1)
- Standard 3.3mm channel-to-channel spacing (vsUCC21530BQDWKRQ1)
Ghi chú thiết kế
Place 1uF + 100nF low-ESR ceramic decoupling capacitors directly at VDDA and VDDB, each with its own ground return to GND. The 4A/6A peak gate currents create fast di/dt loops; keep the OUT-to-GND loop area minimal to limit ringing. On the input side, decouple VDDI with 100nF. Follow the SOIC-14 DWK layout section of the TI UCC21530-Q1 datasheet for creepage and clearance compliance on the isolated barrier.
For 800V-class designs, verify creepage: TI E2E forum discussion (Feb 2025) notes the standard DWK package offers about 3mm creepage, while some 800V OBC specifications require up to 4mm. In such cases, evaluate the UCC21530BQDWKRQ1 enhanced-creepage variant in the same footprint. Also size the DT resistor per the datasheet equation - an incorrect value erodes shoot-through margin with SiC switches.
Gate-drive power dissipation is P = Qg * Vdrive * fsw * 2 (two channels). At Qg = 100nC, Vdrive = 18V, and fsw = 100kHz per channel, each output dissipates roughly 0.36W. Confirm junction temperature stays within the datasheet limit using the DWK package theta-JA and account for ambient temperature in sealed automotive enclosures before finalizing switching frequency.
The 125V/ns minimum CMTI guards against dV/dt-induced false triggering, but Miller clamp or negative gate bias may still be needed for SiC bridges with very high slew rates. Route the DT pin trace away from high-dV/dt switch-node copper, and use a ground plane on the input side to keep the TTL/CMOS INA/INB signals clean against switching noise.
Thông tin tuân thủ
AEC-Q100 qualified per TI product page (automotive grade). RoHS and lead-free status per standard TI automotive packaging; verify on TI quality portal.
