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Texas Instruments UCC27222PWP
- Part No.:
- UCC27222PWP
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
UCC27222PWP.pdf
- Description:
- IC GATE DRVR HALF-BRIDG 14HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,487
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Product details
Overview
UCC27222PWP from Texas Instruments is a non-inverting synchronous buck gate driver IC with Predictive Gate Drive (PGD) technology, ±3.3-A peak source/sink current, 6.5-V on-board VLO regulator, and thermally enhanced 14-pin PowerPAD HTSSOP package. It drives high-side and low-side N-channel MOSFETs in DC-DC converters for processor power and telecom applications.
For engineers reviewing the UCC27222PWP datasheet, UCC27222PWP pinout, UCC27222PWP application, or UCC27222PWP equivalent, key selection criteria include deadtime adjustability (±15 ns to ±48 ns), body-diode conduction elimination capability, 12-V/5-V/3.3-V input compatibility, and thermal resistance of 2°C/W θjc.
Technical Context
The UCC27222PWP implements a digital predictive delay controller that uses prior-cycle feedback to dynamically adjust G1 and G2 turn-on delays in discrete 3.5–4.7 ns steps, minimizing body-diode conduction without external components. Its dual-output architecture separates high-side (G1, referenced to SW/VHI) and low-side (G2, referenced to PGND/PVLO) drive paths.
It integrates an internal 6.5-V linear regulator (VLO) with 6.1–6.9 V output range, 15–40 mV load regulation, and 7.1–8.5 V dropout voltage at 100 mA. Input command logic is non-inverting, with IN threshold voltages of 2.2–2.8 V (low) and 3.3–3.9 V (high) under 10–20 V VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VLO Regulator Output | 6.5 V nominal; powers internal logic and G2 driver; stable across 0–100 mA load and 8.5–20 V VDD input. |
| Peak Output Current | ±3.3 A per channel; delivers high-current pulses at MOSFET Miller plateau crossing for fast switching. |
| Rise/Fall Time | 17–25 ns (G1), 17–35 ns (G2); measured with 2.2 nF load; enables >1 MHz operation with controlled edge rates. |
| Deadtime Adjust Range | tON,G1: −15 to +48 ns; tON,G2: −21 to +38 ns; digitally tuned per cycle to eliminate body-diode conduction. |
| Input Voltage Range | VDD = 8.5–20 V; supports 12-V bus bias for 3.3-V/5-V systems; IN logic compatible with 3.3-V, 5-V, and 12-V PWM sources. |
| Thermal Resistance | θjc = 2°C/W; achieved via PowerPAD HTSSOP package; reduces junction temperature rise under 3 W dissipation. |
| Operating Temperature | −40°C to +105°C ambient; validated for industrial and telecom power supply environments. |
Pinout & Package
UCC27222PWP is housed in a thermally enhanced 14-pin PowerPAD HTSSOP (PWP) package with exposed thermal pad on underside. The PowerPAD must be soldered to PCB ground plane using multiple vias for optimal thermal performance and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 7) | Digital command input | Non-inverting PWM control signal; logic high enables G1 (HS) and disables G2 (LS). |
| G1 (Pin 13) | High-side gate driver output | Swings between SW and VHI; drives main N-MOSFET gate with ±3.3-A peak current. |
| G2 (Pin 9) | Low-side gate driver output | Swings between PGND and PVLO; drives synchronous rectifier N-MOSFET gate. |
| SWS (Pin 11) | Body-diode conduction sense | Connects directly to SR MOSFET drain; detects reverse recovery onset to trigger PGD correction. |
| G2S (Pin 10) | SR gate voltage sense | Monitors G2 output node to determine SR MOSFET channel conduction state for deadtime tuning. |
| VHI (Pin 14) | Floating high-side supply | Supplied via external Schottky bootstrap diode; bypassed to SW with ≥1 µF capacitor. |
| VLO (Pin 4) | Regulated logic supply | 6.5-V output from internal regulator; powers control circuitry and connects to PVLO. |
| VDD (Pin 3) | Main supply input | 8.5–20 V input to VLO regulator; requires ≥0.1 µF local bypass to AGND. |
| AGND (Pin 6) | Analog ground reference | Reference for internal logic and control loops; must tie to PCB ground plane with multiple vias. |
| PGND (Pin 8) | Power ground return | Return path for G2 driver current; separate from AGND but connected on PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Predictive Gate Drive (PGD) | Digital feedback loop adjusts G1/G2 turn-on delays each cycle using prior-cycle SWS/G2S data to eliminate body-diode conduction across temperature, load, and MOSFET variations. |
| TrueDrive™ Output Stage | Bipolar+MOSFET parallel structure delivers ±3.3-A peak current with 0.3–0.9 Ω sink resistance, enabling fast Miller-threshold crossing for <25 ns rise/fall times. |
| Integrated 6.5-V Regulator | On-chip LDO supplies VLO and PVLO; supports 3.3-V/5-V input systems when 12-V bias is available; eliminates need for external bias rail. |
| Thermally Enhanced PWP Package | 14-pin HTSSOP with exposed PowerPAD; achieves 2°C/W θjc, reducing junction temperature rise by >30% vs. standard SOIC under 3 W dissipation. |
| Non-Inverting PWM Interface | IN pin accepts standard PWM signals without inversion logic; simplifies integration with controllers like UC384x or TPS40xx families. |
Applications
| Server VRM Power Stage | Telecom Point-of-Load Converter |
|---|---|
Use Scenario: High-efficiency 12-V input to 1.2-V/100-A output conversion for CPU/GPU voltage regulation modules in rack-mounted servers. IC Role / Device Role / Timing Role: UCC27222PWP provides synchronized high-side/low-side gate drive with predictive deadtime control to minimize conduction losses in paralleled MOSFETs. Use Value: Eliminates body-diode conduction in low-side MOSFETs, reducing junction temperature by up to 15°C and enabling 500 kHz–1 MHz operation without thermal derating. | Use Scenario: 48-V to 3.3-V/20-A DC-DC conversion in telecom line cards requiring high reliability and low EMI. IC Role / Device Role / Timing Role: UCC27222PWP drives SiC-based half-bridge with precise timing to suppress shoot-through while maintaining ZVS conditions. Use Value: Reduces reverse recovery loss in main MOSFET by eliminating body-diode current overlap, improving full-load efficiency by 1.2% over fixed-delay drivers. |
| Industrial PLC Power Supply | 5G Baseband Radio PSU |
Use Scenario: 24-V input to 5-V/15-A isolated/non-isolated converter powering I/O modules in harsh industrial environments. IC Role / Device Role / Timing Role: UCC27222PWP operates from 24-V bus with 12-V auxiliary bias, delivering robust gate drive under wide temperature (−40°C to +105°C) and load transients. Use Value: Maintains <10 ns deadtime accuracy across temperature via digital PGD, preventing cross-conduction failure during rapid load steps. | Use Scenario: Multi-phase 48-V to 1.8-V/60-A power delivery for 5G massive MIMO RF front-end ASICs with strict thermal constraints. IC Role / Device Role / Timing Role: UCC27222PWP enables phase interleaving with sub-ns timing coordination between channels via shared PGD feedback signals. Use Value: Lowers RMS current in input capacitors by 22% through optimized deadtime, extending capacitor lifetime in high-vibration base station enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27201APW | No Predictive Gate Drive; fixed deadtime; 4-A peak current; same PWP package. | Lacks body-diode conduction elimination; requires manual deadtime tuning and MOSFET-specific layout optimization. | Select when cost sensitivity outweighs efficiency gains, or when operating with ultra-low-Qg MOSFETs (<30 nC) where PGD benefit diminishes. |
| LM5113MMX/NOPB | Separate high-side/low-side inputs; no integrated regulator; 5-A peak current; 10-pin VSSOP. | Requires external bias rails and deadtime generation circuitry; higher board area but greater flexibility in multi-topology designs. | Select for designs needing independent HS/LS control or operating beyond 20 V VDD; not drop-in compatible due to pinout and bias architecture differences. |
Compared with UCC27222PWP, UCC27201APW offers higher peak current but no adaptive timing, resulting in 0.8–1.5% lower full-load efficiency in 12-V input VRMs. LM5113MMX/NOPB provides greater voltage headroom and layout flexibility but increases BOM count and design complexity for PGD-equivalent performance.
Availability
UCC27222PWP is available at Aetrix Electronics and suitable for server VRM power stages, telecom point-of-load converters, industrial PLC power supplies, and 5G baseband radio PSUs requiring stable component supply and long-term production continuity.
Supply support for UCC27222PWP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in power management ICs and high-reliability industrial solutions.
The UCC27222PWP belongs to TI's synchronous buck driver product line, engineered specifically for high-efficiency, high-frequency DC-DC conversion in computing, telecom, and industrial power systems where body-diode loss minimization is critical.
FAQ
What is the function of the SWS pin on the UCC27222PWP?
The SWS (Switch Sense) pin on the UCC27222PWP monitors the drain node of the synchronous rectifier MOSFET to detect body-diode conduction onset. This signal feeds the Predictive Gate Drive controller, enabling real-time adjustment of G1/G2 deadtime to eliminate reverse recovery losses. In every UCC27222PWP application, SWS must be routed with minimal trace length and inductance directly to the SR MOSFET drain near its package.
Can the UCC27222PWP operate from a 3.3-V input supply?
Yes, the UCC27222PWP can operate in 3.3-V input systems when a 12-V bias rail is available to power the VDD pin and enable the internal 6.5-V VLO regulator. The IN pin accepts 3.3-V logic levels (min. 2.2 V high threshold), and the device maintains full PGD functionality. UCC27222PWP does not support direct 3.3-V-only operation without auxiliary bias.
How does the Predictive Gate Drive in UCC27222PWP differ from adaptive gate drive?
UCC27222PWP's Predictive Gate Drive uses prior-cycle SWS/G2S data to set deadtime for the current cycle, avoiding propagation delay-induced body-diode conduction. Adaptive drivers use real-time sensing, introducing 20–60 ns latency that causes unavoidable conduction. This makes UCC27222PWP uniquely capable of eliminating body-diode conduction entirely across varying loads and temperatures.
What is the maximum gate charge the UCC27222PWP can drive reliably?
The UCC27222PWP is rated for reliable operation with external MOSFETs having up to 120 nC total gate charge. Beyond this, rise/fall times extend and PGD delay adjust range compresses, reducing efficiency benefits. For example, driving a 150-nC MOSFET pair with UCC27222PWP may limit tON tuning to ±10 ns instead of the full ±48 ns range specified in the UCC27222PWP datasheet.
Is the UCC27222PWP pin-compatible with the UCC27221PWP?
Yes, the UCC27222PWP and UCC27221PWP share identical pinout, package (PWP), and electrical specifications except for input logic polarity: UCC27222PWP has non-inverting IN, while UCC27221PWP has inverting IN. No PCB changes are required when substituting between them, but firmware or upstream PWM polarity must be verified to maintain correct high-side/low-side sequencing in the UCC27222PWP implementation.
UCC27222PWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Synchronous
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 3.7V ~ 20V
- Logic Voltage - VIL, VIH:
- 0.7V, 2.6V
- Current - Peak Output (Source, Sink):
- 4A, 4A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 17ns, 17ns
- Operating Temperature:
- -55°C ~ 115°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-HTSSOP
UCC27222PWP FAQ
1.How can I place an order for UCC27222PWP through Aetrix?
Please submit a Request for Quotation (RFQ) for UCC27222PWP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for UCC27222PWP reliable?
The price and inventory of UCC27222PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UCC27222PWP is usually 5 days.
3.What payment methods are accepted for UCC27222PWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UCC27222PWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UCC27222PWP?
UCC27222PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UCC27222PWP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for UCC27222PWP?
For technical support, including UCC27222PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UCC27222PWP requirements.
6.How does Aetrix verify that UCC27222PWP is sourced from the original manufacturer or authorized distributors?
All UCC27222PWP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UCC27222PWP meets industry standards.
7.What is the process for return or replacement of UCC27222PWP?
All UCC27222PWP units undergo pre-shipment inspection (PSI). If there is an issue with UCC27222PWP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The UCC27222PWP part is unused and in its original packaging.
Return procedure for UCC27222PWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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