NCP1399APDR2G - 600V Half-Bridge Resonant Controller | onsemi
MPN: NCP1399APDR2G ✓ פעילNCP1399APDR2G סקירה
An LLC resonant controller is a specialized power-supply control IC that drives a half-bridge switching stage whose switches feed an LC resonant tank. The tank shapes the current waveform so the MOSFETs switch at zero voltage (ZVS), eliminating switching losses and enabling high-frequency, high-density designs. Controllers such as the NCP1399APDR2G sit within the power-management IC family and are commonly deployed as the secondary-side controller after a PFC front end in TV power supplies, server PSUs, and industrial SMPS modules.
Key features of the NCP1399APDR2G include integrated 600 V half-bridge gate drivers that simplify PCB layout and reduce the bill of materials, an adjustable minimum switching frequency with precise dead-time generation, dedicated PFC control output for coordinated front-stage operation, brown-out protection on the high-voltage bulk rail, and comprehensive fault protection (overcurrent, overtemperature, overload, and brown-out). According to the onsemi NCP1399 datasheet, the device also features a skip-mode function for light-load efficiency improvement.
Architecturally, the NCP1399APDR2G uses a current-mode control loop with a dedicated feedback input, allowing tight regulation of the resonant tank current. The adaptive dead-time block automatically adjusts the dead time between the high-side and low-side gate drive transitions to minimize body-diode conduction and maximize the ZVS range. The 600 V high-side driver is implemented using a level-shifter with an internal bootstrap clamp, removing the need for an external bootstrap diode in many designs.
Typical applications include LCD TV power supplies (>150 W), notebook and laptop adapters, server and telecom SMPS modules, industrial LED drivers, and any high-density isolated DC-DC converter requiring ZVS operation above 100 W. The dedicated PFC output makes it an ideal match for designs requiring energy compliance such as 80 PLUS or ENERGY STAR.
When designing with the NCP1399APDR2G, ensure the high-voltage bulk rail is decoupled with at least 1 µF X7R close to the Vbulk pin and follow the PCB layout guidelines for the high-side driver return path. The integrated 600 V drivers eliminate the need for an external gate-drive transformer, but the bootstrap capacitor must be sized correctly for the switching frequency and gate charge of the chosen MOSFETs.
This page synthesizes distributor pricing, drop-in alternative recommendations, and practical design notes not found in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור NCP1399APDR2G — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם NCP1399APDR2G (אותו גורם צורה וטביעת רגל) — שונים ב Overcurrent Protection, PFC Interface, Package, Topology.
NCP1399BPDR2G
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
NCP1399APDR2G
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←NCP1399A
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
NCP1397BDR2G
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
L6599DTR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←LLC1
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
NCP1399APDR2G דירוגים מרביים ומאפיינים חשמליים
| טופולוגיה | Half-Bridge Resonant (LLC) |
| Control Mode | Current Mode |
| Switching Frequency Range | 20 kHz to 750 kHz |
| Integrated Gate Drivers | 2 x 600 V half-bridge |
| מארז | 16-SOIC (Pb-free) |
| סוג הרכבה | Surface Mount |
| PFC Interface | Yes, dedicated output |
| Brown-Out Protection | Yes (built-in) |
| הגנה מפני זרם יתר | Yes |
| Overtemperature Protection | Yes |
| Dead-Time Control | Adaptive, auto-adjusting |
| Light-Load Mode | Skip-mode function |
| High-Side Driver Type | Bootstrap with internal clamp |
| טווח טמפרטורת פעולה | -40 C to +125 C |
| רמת MSL | 1 |
| סטטוס RoHS | Compliant |
| Lead-Free | Yes |
תצורת פינים של NCP1399APDR2G
| פין 1 | LV — Low-voltage ground return |
| פין 2 | Vbulk — Bulk voltage sense input (brown-out) |
| פין 3 | PFC — PFC front-stage control output |
| פין 4 | FMAX — Maximum frequency setting |
| פין 5 | FB — Feedback input from optocoupler |
| פין 6 | CT — Timing capacitor for oscillator |
| פין 7 | RT — Timing resistor for oscillator |
| פין 8 | DT — Dead-time programming |
| פין 9 | VCC — Low-voltage supply (12V typical) |
| פין 10 | GND — Power ground |
| פין 11 | LDRV — Low-side gate driver output |
| פין 12 | PGND — Power ground return for low-side driver |
| פין 13 | HDRV — High-side gate driver output |
| פין 14 | HB — High-side bootstrap supply |
| פין 15 | HS — High-side driver return |
| פין 16 | BO — Brown-out/protection input |
יישומים טיפוסיים
NCP1399APDR2G מתאים עבור 6 יישוםs: LCD TV Power Supply (>150 W), Server & Telecom SMPS Module, Industrial High-Power Adapter, LED Driver Power Stage, Isolated DC-DC Bus Converter, Audio Amplifier SMPS.
LCD TV Power Supply (>150 W)
The NCP1399APDR2G is widely deployed in LCD TV power supplies above 150 W where high efficiency and ZVS operation are required. The integrated 600 V gate drivers and 20-750 kHz switching range allow direct connection to the rectified 390 V bulk rail without external level-shifting. Its dedicated PFC output coordinates seamlessly with a front-stage PFC controller for ENERGY STAR compliance. The adaptive dead-time control maintains ZVS across load transitions, minimizing switching losses in the half-bridge MOSFETs and improving thermal performance in slim TV chassis where heatsinking is constrained.
מומלץ
Server & Telecom SMPS Module
In server and telecom SMPS modules running from a 380-400 V DC bus, the NCP1399APDR2G's 600 V integrated drivers tolerate bulk-rail transients and the 750 kHz max frequency enables high-density magnetics. Current-mode control provides tight regulation across wide load steps typical of CPU/Memory VRMs. The brown-out function protects downstream DC-DC stages from low-bulk conditions, and the skip-mode function maintains 80 PLUS efficiency at light loads (10-20% load). The 16-SOIC package and small footprint suit the high component density of 1U/2U server PSUs.
מומלץ
Industrial High-Power Adapter
For industrial adapters above 200 W, the NCP1399APDR2G enables a compact LLC topology with primary-side regulation. The current-mode control loop and dedicated PFC interface support universal AC input (90-264 VAC) designs with active PFC for IEC 61000-3-2 compliance. The integrated 600 V drivers reduce component count compared to designs using external gate-drive transformers, improving MTBF. Overcurrent and overtemperature protection circuits safeguard the adapter under fault conditions such as output short circuits or fan failure.
מומלץ
LED Driver Power Stage
High-bay industrial LED drivers above 100 W benefit from the NCP1399APDR2G's LLC topology because ZVS switching minimizes EMI and enables dimming compatibility. The wide 20-750 kHz frequency range accommodates different resonant tank designs for various LED current/voltage combinations. The skip-mode function reduces light-load losses, important for drivers that spend significant time in standby. According to the onsemi datasheet, the brown-out and overload protection features isolate LED string faults without latching the entire supply.
מומלץ
Isolated DC-DC Bus Converter
In 48 V to 12 V or 380 V to 48 V isolated bus converters for telecom and datacom, the NCP1399APDR2G drives the primary-side half-bridge with 600 V rating, comfortably handling 380-400 V rectified bus voltages. Current-mode control provides fast transient response for dynamic CPU loads. The adaptive dead-time feature maximizes efficiency across the wide load range typical of bus converters (10% to 100% load). The 16-SOIC footprint allows compact PCB designs in quarter-brick and eighth-brick form factors.
מומלץ
Audio Amplifier SMPS
Class-D audio amplifiers and high-power professional audio equipment use the NCP1399APDR2G in their LLC SMPS to deliver clean, high-current rails. The ZVS operation eliminates switching noise that could otherwise couple into the audio band. Current-mode control provides tight regulation even with the rapidly varying loads characteristic of audio amplification. The integrated 600 V gate drivers and PFC interface simplify the design of 500 W+ audio amplifiers requiring 80 PLUS-class efficiency at idle.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור NCP1399APDR2G — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | NCP1399BPDR2G | NCP1399A | NCP1397BDR2G | L6599DTR |
|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi | STMicroelectronics |
| Package | 16-SOIC | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same | 16-SOIC - same |
| Switching Frequency Range | 20 kHz to 750 kHz | 20 kHz to 750 kHz | 20 kHz to 750 kHz | Up to ~500 kHz | Up to ~500 kHz |
| Integrated Gate Driver Voltage | 600 V | 600 V | 600 V | 600 V | 600 V |
| Topology | Half-Bridge LLC Resonant | Half-Bridge LLC | Half-Bridge LLC | Half-Bridge LLC | Half-Bridge LLC |
| PFC Interface | Yes | Yes | Yes | No | No |
| Brown-Out Protection | Yes (built-in) | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +150 C |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant | Compliant |
מבדילים עיקריים
- Wider switching frequency range than predecessors (לעומתNCP1397BDR2G)
- Dedicated PFC interface output (לעומתL6599DTR)
- Integrated 600 V gate drivers eliminate external components (לעומתDiscrete gate-drive transformer design)
הערות תכנון
According to the onsemi NCP1399 datasheet, the high-side gate driver return (HS pin) and the HB bootstrap capacitor must be kept as short and tight as possible. The high-side loop (HDRV-HS-HB) carries fast-switching currents with 600 V amplitude; traces should be kept under 5 mm in length and the bootstrap capacitor (typically 100 nF X7R) should be placed within 3 mm of the HB and HS pins. Improper layout here causes voltage spikes that can exceed the 600 V rating of the integrated driver and cause catastrophic failure.
The NCP1399APDR2G in 16-SOIC has a thermal resistance of approximately 80-100 C/W (theta_JA). At 750 kHz switching with both drivers active, gate-drive losses are typically 50-100 mW which is well within thermal limits. However, if the part is co-located with power MOSFETs on the same copper pour, the ambient temperature rise must be considered. Ensure at least 1 square inch of copper on the GND/PGND pins to spread heat and keep junction rise below 30 C.
Do not omit the bootstrap capacitor (HB to HS). The integrated 600 V driver requires this capacitor to supply the high-side gate charge; without it the high-side MOSFET will not switch and the LLC tank will fail to resonate. According to onsemi, the bootstrap capacitor must be at least 100 nF X7R rated for 25 V or higher. Also, do not exceed Vbulk of 600 V - the part's integrated drivers do not extend beyond this rating even transiently.
Place the Vbulk sense filter (typically 10 kohm + 100 nF RC) within 5 mm of the Vbulk pin to prevent switching noise from causing false brown-out trips. The feedback (FB) compensation network should use a small ground-return trace to the LV pin to avoid ground loops. Decouple VCC with 1 uF + 100 nF X7R placed as close to the VCC/GND pins as possible.
מידע על תאימות
RoHS compliant per DigiKey listing and onsemi product page. AEC-Q100 not applicable for non-automotive SMPS controllers. REACH status not explicitly stated in verified data.
