NCV1362ABDR2G - 50W Automotive QR Flyback Controller | onsemi
N.º da peça: NCV1362ABDR2G ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.59 | $1,59 |
| 10 | $1.43 | $14,30 |
| 100 | $1.27 | $127,00 |
| 500 | $1.12 | $560,00 |
| 1.000 | $0.97 | $970,00 |
NCV1362ABDR2G Visão geral
A quasi-resonant flyback controller is a type of AC-DC offline switching controller that turns the primary MOSFET on when the drain voltage rings to its valley, dramatically lowering switching losses and EMI versus a hard-switched PWM controller at fixed frequency. It belongs to the controller hierarchy: AC-DC controller -> offline switcher -> quasi-resonant controller -> peak current-mode controller -> power management IC. Primary-side regulation (PSR) eliminates the opto-coupler and secondary reference, enabling tighter CV/CC accuracy with a smaller BOM.
Key features of the NCV1362ABDR2G include quasi-resonant valley-switching for reduced EMI and improved efficiency, primary-side constant-voltage and constant-current regulation (no opto-coupler required), a wide VCC range of 6.5 V to 28 V, built-in protections (over-voltage, over-current, over-power, short-circuit, and thermal shutdown), and a 1 kHz to 140 kHz programmable switching-frequency range. Automotive-grade qualification per onsemi's NCV prefix supports AEC-Q100 applications such as USB chargers, e-bike chargers, and LED drivers.
The controller uses a current-mode control architecture with a transconductance error amplifier and an internal reference, allowing the designer to set loop dynamics with a single external compensation network on the COMP pin. The quasi-resonant detection block identifies the drain-voltage valley and synchronizes turn-on, lowering dv/dt stress on the MOSFET and reducing conducted EMI by up to 10 dB relative to a fixed-frequency controller at the same load.
Typical end uses include USB Type-C chargers (5 V / 3 A) for vehicles, 12 V-24 V auxiliary supplies in two-wheeler and four-wheeler electrical systems, LED driver front-stages, e-bike and e-scooter chargers, white-goods auxiliary supplies, and industrial IoT gateways requiring isolated low-power rails. The wide VCC tolerance also allows direct operation from rectified 12 V or 24 V battery buses without an external regulator.
When designing with the NCV1362ABDR2G, place the gate-drive resistor and the current-sense resistor as close to the CS and DRV pins as possible, and keep the high-voltage drain loop area minimal to limit ringing that could falsely trigger the QR detector. The VCC hold-up capacitance must sustain operation through the auxiliary-winding dropout interval at minimum line voltage.
Alternativas drop-in para NCV1362ABDR2G — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
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NCV1362ABDR2G Classificações máximas e características elétricas
| Topologia | Quasi-Resonant Peak Current-Mode Flyback (Primary-Side Regulated) |
| Switching Frequency Range | 1 kHz to 140 kHz (typical 110 kHz) |
| Maximum Switching Frequency | 130 kHz |
| Output Power Capability | Up to 50 W (flyback) |
| VCC Supply Voltage Range | 6.5 V to 28 V |
| Regulation Method | Primary-Side CV/CC (no opto-coupler required) |
| Control Mode | Peak Current Mode |
| Encapsulamento | 8-SOIC (NB) |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40 C to +125 C |
| Automotive Qualification | AEC-Q100 (NCV prefix) |
| Built-in Protections | OVP, OCP, OPP, SCP, OTP |
| Nível MSL | 1 (per JEDEC J-STD-020) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do NCV1362ABDR2G
| Pino 1 | GND — Ground return |
| Pino 2 | FB — Feedback input from auxiliary winding for primary-side regulation |
| Pino 3 | CS — Current sense input from primary MOSFET source resistor |
| Pino 4 | DRV — Gate drive output for primary MOSFET |
| Pino 5 | VCC — Supply voltage input (6.5 V-28 V) |
| Pino 6 | NC — Not connected (per datasheet) |
| Pino 7 | HV — High-voltage startup current source from rectified line |
| Pino 8 | DRAIN — Drain voltage sensing for quasi-resonant valley detection |
Aplicações típicas
NCV1362ABDR2G é adequado para 6 aplicaçãos: Automotive USB Type-C Chargers, E-Bike and E-Scooter Battery Chargers, LED Driver Front-Stages, Auxiliary 12 V/24 V Industrial Supplies, White-Goods Auxiliary Power, Industrial IoT Gateway Power Modules.
Automotive USB Type-C Chargers
The NCV1362ABDR2G's 50 W flyback capability, quasi-resonant valley-switching, and AEC-Q100 qualification make it ideal for 5 V/3 A and 9 V/2.22 A USB-PD automotive chargers. The primary-side CV/CC regulation eliminates the opto-coupler and TL431, shrinking the BOM by 6-8 components and reducing standby power below 30 mW at 5 V no-load per the onsemi datasheet. The 6.5 V to 28 V VCC range accepts direct rectified 12 V battery input without an external preregulator.
Recomendado
E-Bike and E-Scooter Battery Chargers
The NCV1362ABDR2G targets the e-mobility 2+ charger market where compact, lightweight 36 V/42 V Li-ion chargers are needed. Its QR topology delivers 88-90% efficiency at 50 W output, while primary-side regulation with CC/CV transition supports the constant-current bulk phase and constant-voltage topping phase of Li-ion CC-CV charging profiles. AEC-Q100 qualification protects against automotive thermal and vibration stresses typical of two-wheeler onboard charging modules.
Recomendado
LED Driver Front-Stages
The NCV1362ABDR2G is well suited for the flyback front-stage of isolated 36 V-54 V LED drivers for automotive headlamps and architectural fixtures. Quasi-resonant switching reduces conducted EMI by 6-10 dB versus fixed-frequency PWM, easing compliance with CISPR 25 Class 5 for automotive modules. The wide 6.5 V-28 V VCC range supports direct operation from 24 V commercial-lighting rails without auxiliary preregulation.
Recomendado
Auxiliary 12 V/24 V Industrial Supplies
The NCV1362ABDR2G powers isolated 5 V-24 V auxiliary rails in industrial PLCs, factory automation gateways, and HVAC controllers. Primary-side regulation with the NCV1362ABDR2G eliminates the secondary-side components, improving MTBF in 24/7 industrial environments. The 50 W flyback ceiling covers typical 24 V/1 A industrial auxiliary rails, while the 8-SOIC package fits the tight board spacing of DIN-rail mounted modules.
Recomendado
White-Goods Auxiliary Power
The NCV1362ABDR2G's wide-mains 50 W flyback capability suits washing-machine, dishwasher, and oven auxiliary supplies needing isolated standby rails. Quasi-resonant operation at light loads lowers standby power below 75 mW per EU Ecodesign 2023, while primary-side CV/CC eliminates the opto-coupler that typically degrades over 10+ year white-goods service life. The 8-SOIC NB package withstands high-humidity conformal-coated environments.
Recomendado
Industrial IoT Gateway Power Modules
The NCV1362ABDR2G powers the isolated 5 V/12 V rails inside industrial IoT gateways with built-in 4G/Wi-Fi/Bluetooth connectivity. Quasi-resonant valley-switching lowers EMI on the antenna-adjacent supply rails, improving the gateway's RF immunity. The 6.5 V to 28 V VCC range lets the same controller serve both 12 V solar-battery and 24 V industrial-bus gateway variants without redesign, reducing SKU count for the OEM.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para NCV1362ABDR2G — comparação, orientação de projeto e informações de conformidade.
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Comparação com alternativas
| Parâmetro | Este produto | NCP1362BDR2G | NCV1362ADR2G | NCV1362BDR2G | NCP1337DR2G | NCP1380DR2G |
|---|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi |
| Package | 8-SOIC (NB) | 8-SOIC (NB) - same | 8-SOIC (NB) - same | 8-SOIC (NB) - same | 8-SOIC (NB) - same | 8-SOIC (NB) - same |
| Topology | Quasi-Resonant Flyback | Quasi-Resonant Flyback | Quasi-Resonant Flyback | Quasi-Resonant Flyback | Fixed-Frequency PWM | Quasi-Resonant Flyback |
| Switching Frequency Range | 1 kHz to 140 kHz | 1 kHz to 140 kHz | 1 kHz to 140 kHz | 1 kHz to 140 kHz | Fixed 65 kHz / 100 kHz | 1 kHz to 150 kHz |
| VCC Supply Range | 6.5 V to 28 V | 6.5 V to 28 V | 6.5 V to 28 V | 6.5 V to 28 V | 9 V to 28 V | 6.5 V to 30 V |
| Output Power Capability | Up to 50 W | Up to 50 W | Up to 50 W | Up to 50 W | Up to 30 W | Up to 60 W |
| Automotive Qualification | AEC-Q100 (NCV) | Commercial | AEC-Q100 (NCV) | AEC-Q100 (NCV) | Commercial | Commercial |
| Typical 1k-Unit Price (USD) | $0.97 | $0.80 | $1.05 | $0.97 | $0.65 | $1.10 |
Principais diferenciais
- Quasi-resonant valley-switching lowers EMI by 6-10 dB (vs NCP1337DR2G)
- AEC-Q100 automotive grade qualification (vs NCP1362BDR2G)
- Higher 50 W power ceiling vs 30 W alternatives (vs NCP1337DR2G)
Notas de projeto
Estimated: at 25 W output power with 90% efficiency, the NCV1362ABDR2G itself dissipates roughly 0.25 W; however the auxiliary VCC diode drop and gate-drive losses add another 0.15 W. The 8-SOIC package has theta_JA of approximately 110 C/W on a 1 oz 2-layer board; place copper pours on both layers under the exposed die paddle and gate-drive return to keep junction rise below 30 C.
Keep the high-voltage DRAIN loop (drain of primary MOSFET, transformer primary winding, bulk capacitor return) as small as possible, ideally under 1 cm^2, to limit ringing that the QR valley detector could falsely trigger. Place the CS-pin current-sense filter RC (typical 1 kohm + 1 nF) within 5 mm of the CS pin; this filter blanking prevents the leading-edge spike from prematurely terminating the DRV pulse per the onsemi datasheet.
Route the FB trace as a Kelvin connection directly to the auxiliary-winding ground return; do not share the FB trace return with the DRV gate-return current. The FB trace should be guarded by GND copper on both sides to reject the DRV-edge capacitive noise that could otherwise couple into the auxiliary voltage-sense path and cause output-voltage jitter at light load.
Do not size the VCC hold-up capacitor too small. Estimated: at 25 W output with 10 mA IC quiescent current and 10 ms auxiliary-winding dropout interval at low line, VCC hold-up capacitance must be at least 22 uF to maintain VCC above the 6.5 V UVLO threshold. Using an undersized VCC cap causes the controller to cycle on/off at heavy load and audible whine in transformers.
Informações de conformidade
RoHS and REACH compliant per onsemi product page; AEC-Q100 qualified (NCV prefix); conflict-minerals compliant per onsemi CMRT filing. Halogen-free status not explicitly stated in provided data.
