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Texas Instruments LMG3622 | Demoboard LMG3622EVM-082
LMG3622 evaluation module for 65-W quasi-resonant flyback converter with USB Type-C® PD
Overview
| Topology | Flyback Converter |
| Input voltage | 90-265 V |
| Switching frequency | 180 kHz |
| Output 1 | 15 V / 3 A |
| Output 2 | 20 V / 3.25 A |
| Output 3 | 9 V / 3 A |
| Output 4 | 5 V / 3 A |
| IC revision | A |
Description
LMG3622EVM-082 demonstrates high efficiency and high density for a 65-W USB Type-C® Power Delivery (PD) off-line adapter using the LMG3622 integrated GaN FET with current sense emulation. The input supports a universal 90 VAC to 265 VAC and the single output can be set to 5 V, 9 V and 15 V all at 3-A max and 20 V at 3.25-A max, which can be adjusted with the USB PD interface controller. High-frequency operation up to 200-kHz nominal enables small solution size while the multi-mode operation maintains high efficiency. Synchronous rectification is used on the output to increase efficiency.
Features
- 93-94% Efficiency under full-load operation under entire input voltage range
- 28W/in3 Power density enabled by 180-kHz maximum switching frequency
- Current sense emulation greatly reduces power losses associated with traditional current sensing circuitry
- Integration of GaN, driver, OCP, and OTP simplifies design, reduces BOM count, and increases system robustness
- USB-C output enables full system-level evaluation for end-equipments like adapters, notebook chargers, USB wall outlets
Typical applications
- High-density AC-to-DC converters / Adapters for notebook computers, tablet computers, TV, and set-top box, USB-C PD Power Adapters
- AC-to-DC or DC-to-DC auxiliary power supplies
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | Packaging | Tol. C | Size | Operating Temperature | DF(%) | Ceramic Type | Fl(mm) | ISAT(A) | RDC(mΩ) | fres(MHz) | Interface Type | Type | Gender | Pins | PCB Thickness(mm) | Working Voltage(V (DC)) | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTX2 Film Capacitors, Across the mains, 47 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTX2 Film Capacitors | Capacitance47 nF | Safety ClassX2 | Rate of Voltage Rise300 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | PackagingBulk | Capacitance±10% | SizePitch 10 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage275 V (AC) | – | – | Length13 mm | Width4.5 mm | Height9.5 mm | MountBoxed THT | ||||
 | WR-USB Type C Connectors, USB 3.1, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Type C Connectors | – | – | – | – | Insulation Resistance1000 MΩ | – | PackagingTape and Reel | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | Interface TypeType C | TypeHorizontal | GenderReceptacle | Pins24 | PCB Thickness1.6 mm | Working Voltage48 V (DC) | Rated Current5 A | – | – | – | – | – | – | – | – | MountTHR | |||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | SizeXS | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | – | – | – | – | Pins4 | – | – | Rated Current2 A | Inductance1 mH | DC Resistance45 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15 mm | Width7.8 mm | Height18 mm | MountTHT | ||||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | Size6045 | Operating Temperature -40 °C up to +125 °C | – | – | – | Saturation Current2.5 A | DC Resistance89 mΩ | Self Resonant Frequency15 MHz | – | – | – | – | – | – | Rated Current2.1 A | Inductance0.022 mH | – | – | – | – | Length6 mm | Width6 mm | Height4.5 mm | MountSMT | ||||
| WCAP-CSGP MLCCs 50 V(DC), –, 1 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance1 nF | – | – | – | Insulation Resistance10 GΩ | – | Packaging7" Tape & Reel | Capacitance±10% | Size0402 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Ceramic TypeX7R Class II | Pad Dimension0.25 mm | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage50 V (AC) | – | – | Length1 mm | Width0.5 mm | Height0.5 mm | – |