Calculation tool
UCG28826-CALC — UCG28826 design calculator
System design tool based on flyback converter with integrated GaN
Data sheet
UCG28826
- Integrated 750V GaN with 170mΩ Rds(on) option
- Dynamic QR/DCM/CCM modes of operation
- High power density: up to 500kHz switching frequency
- Enable low BoM cost by integration
- Remove auxiliary winding with self bias
- Integrated input and output voltage sensing
- Integrated current sense
- Integrated HV start-up
- Integrated X-cap discharge
- High efficiency and low EMI performance
- Ultra-low standby power: <30mW
- Frequency foldback and burst mode
- Valley locking
- Frequency dithering
- Switching slew rate control
- Comprehensive protection features
- Overtemperature protection
- Overvoltage protection
- Short-circuit protection
- Cycle-by-cycle current limit
- Two-level over power protection with LPS
- Brownin and brownout protection
- Open feedback protection
- Flexible configurability through external resistors
- X-cap discharge and CCM mode disable
- Selectable switching slew rate
- Multiple clamping frequency settings
- Fault latch or auto-restart
- Maximum and minimum peak current ratio
- Dithering amplitude
UCG2882x is a high frequency, quasi-resonant flyback converter with built-in 750V GaN high electron mobility transistor (HEMT) with as low as 170mΩ Rds(on) for AC to DC power conversion. The UCG2882x is designed for high power density applications, such as cell phone fast chargers and notebook adapters. The key feature of this device is the self-bias and auxless sensing scheme which eliminates the need of the auxiliary winding and simplifies the system design with higher efficiency.
This device also features intelligent mode transition (CCM/QR/DCM) to enable high efficiency across wide power range and <30mW standby power consumption. In addition, UCG2882x includes a full list of protections such as brownin and brownout protection, SCP, OVP, OPP, LPS, OFB and OTP. The cycle-by-cycle current limit allows for fast response to the fault conditions to safeguard the system and improve the reliability. In a small 5×5mm package, the UCG2882x has dedicated configuration pins to offer more flexibility. Only resistors are needed to tune certain parameters for each system, enabling a platform design with a single device.
Technical documentation
No results found. Please clear your search and try again.
View all 10 Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
UCG28826EVM-093 — UCG28826 evaluation module
The UCG28826EVM-093 is a 65W USB-C® PD evaluation module (EVM) for evaluating an off-line GaN integrated quasi-resonant flyback adapter for AC/DC adapters, chargers, USB wall outlets, and other applications. The EVM meets CoC Tier two and DoE Level six efficiency requirements. The EVM is intended (...)
Reference designs
PMP41117 — 65W dual-port USB Power Delivery charger with self-biasing GaN flyback converter reference design
This reference design is a 65W dual-port USB Power Delivery (PD) charger with self-biasing gallium nitride (GaN) flyback. This design can deliver 65W full rated power across 90VAC to 264VAC and meet efficiency standards and regulations such as DoE Level VI and CoC V5 Tier 2 efficiency standards for (...)
Test report: PDF
Reference designs
PMP41163 — Universal AC input 65W low-profile AC/DC USB PD charger reference design with integrated GaN
This reference design is a 65W, low-profile AC/DC USB Power Delivery (PD) charger reference design with integrated flyback controller and gallium nitride (GaN) power switch. This design can achieve less than 10mm height by using a low-profile planar printed circuit board (PCB) transformer. The (...)
Test report: PDF
Reference designs
PMP41131 — Universal AC-input 45W low-profile USB power delivery charger reference design with integrated GaN
This reference design is a 45W, low-profile AC/DC USB Power Delivery (PD) charger reference design with integrated flyback controller and gallium nitride (GaN) power switch. This design can achieve less than 10mm height by using a low-profile planar PCB transformer. The flyback converter UCG28826 (...)
Test report: PDF
Reference designs
PMP41145 — Universal AC-input, 65W, 20V 3.25A flyback with integrated GaN reference design
This reference design is a 65W, 20V fixed output voltage AC-DC power supply design with integrated flyback and Gallium nitride (GaN). This design can deliver 65W full rated power across 90VAC to 264VAC and achieve 93% efficiency at 90VAC. The design can meet efficiency standards and regulations (...)
Test report: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (REZ) | 12 | Ultra Librarian |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Information included:
- Fab location
- Assembly location
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.