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Onsemi FAN7688SJX | Demoboard 6.6KW On Board EV Charger
Advanced Secondary Side LLC Resonant Converter Controller with Synchronous Rectifier Control
Details
| Topologie | LLC Resonanzwandler |
| Eingangsspannung | 90-264 V |
| Schaltfrequenz | 36-735 kHz |
| Ausgang 1 | 450 V / 16 A |
| IC-Revision | 0.9 |
Beschreibung
The FAN7688 is an advanced Pulse Frequency Modulated (PFM) controller for LLC resonant converters with Synchronous Rectification (SR) that offers best in class efficiency for isolated DC/DC converters. It employs a current mode control technique based on a charge control, where the triangular waveform from the oscillator is combined with the integrated switch current information to determine the switching frequency. This provides a better control-to-output transfer function of the power stage simplifying the feedback loop design while allowing true input power limit capability. Closed-loop soft-start prevents saturation of the error amplifier and allows monotonic rising of the output voltage regardless of load condition. A dual edge tracking adaptive dead time control minimizes the body diode conduction time thus maximizing efficiency.
Eigenschaften
- Secondary Side PFM Controller for LLC Resonant Converter with Synchronous Rectifier Control
- Charge Current Control for Better Transient Response and Easy Feedback Loop Design
- Adaptive Synchronous Rectification Control with Dual Edge Tracking
- Closed Loop Soft-Start for Monotonic Rising Output
- Wide Operating Frequency (39 kHz ~ 690 kHz)
- Green Functions to Improve Light-Load Efficiency - Symmetric PWM Control at Light-Load to Limit the Switching Frequency while Reducing Switching Losses - Disabling SR at Light-Load Condition
- Protection Functions with Auto-Restart - Over-Current Protection (OCP) - Output Short Protection (OSP) - NON Zero-Voltage Switching Prevention (NZS) by Compensation Cutback (Frequency Shift) - Power Limit by Compensation Cutback (Frequency Shift) - Overload Protection (OLP) with Programmable Shutdown Delay Time - Over-Temperature Protection (OTP)
- Programmable Dead Times for Primary Side Switches and Secondary Side Synchronous Rectifiers
- VDD Under-Voltage Lockout (UVLO)
- Wide Operating Temperature Range -40°C to +125°C
Typische Anwendungen
- Game Console / LED TV / PDP TV / LCD TV
- Desktop PC / Fully Configured Entry Level PC Server
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | Q (%) | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | V (V) | Montageart | Pins | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012007051 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 10 pF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 600 | – | 10 GΩ | NP0 Klasse I | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.6 | – | – | – | 7" Tape & Reel | ||
| 885012007057 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 100 pF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Klasse I | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.6 | – | – | – | 7" Tape & Reel | ||
| 885012007059 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 220 pF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Klasse I | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.6 | – | – | – | 7" Tape & Reel | ||
| 885012007061 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 470 pF | ±5% | 50 | 0805 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Klasse I | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207086 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 1 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207088 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 2.2 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207090 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 4.7 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207092 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 10 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207096 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 47 nF | ±10% | 50 | 0805 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207072 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 100 nF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 3.5 | 5 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012207074 | SPEC | 7 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 220 nF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 3.5 | 2.3 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012207076 | SPEC | 7 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 470 nF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 3.5 | 1.1 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012207052 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 16 V(DC) | 2.2 µF | ±10% | 16 | 0805 | -55 °C up to +125 °C | – | 10 | 0.05 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012207079 | SPEC | 7 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 2.2 µF | ±10% | 25 | 0805 | -55 °C up to +125 °C | – | 10 | 0.05 GΩ | X7R Klasse II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | ||
| 885012208094 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | 4.7 µF | ±10% | 50 | 1206 | -55 °C up to +125 °C | – | 10 | 0.02 GΩ | X7R Klasse II | 3.2 | 1.6 | 0.5 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | 7" Tape & Reel | ||
| 885012208069 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 25 V(DC) | 10 µF | ±10% | 25 | 1206 | -55 °C up to +125 °C | – | 10 | 0.01 GΩ | X7R Klasse II | 3.2 | 1.6 | 0.5 | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | 7" Tape & Reel | ||
 | 74438343010 | SPEC | 9 Dateien | WE-MAPI SMT-Speicherdrossel | – | – | – | 2010 | -40 °C up to +125 °C | – | – | – | – | 2 | 1.6 | – | 1 | 2.8 | 4.7 | 86 | 99 | 80 | SMT | 2 | – | 1 | – | – | 1.8 | – | ||
 | 61300511021 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Angled Pin Header | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 12.7 | – | – | – | – | – | – | – | – | THT | 5 | Single | – | Pin Header | Angled | 3 | Beutel | |
| 61301011021 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Angled Pin Header | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 25.4 | – | – | – | – | – | – | – | – | THT | 10 | Single | – | Pin Header | Angled | 3 | Beutel | |
| 61300611021 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Angled Pin Header | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 15.24 | – | – | – | – | – | – | – | – | THT | 6 | Single | – | Pin Header | Angled | 3 | Beutel | |
| 61300811021 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Angled Pin Header | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 20.32 | – | – | – | – | – | – | – | – | THT | 8 | Single | – | Pin Header | Angled | 3 | Beutel |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | Q (%) | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | V (V) | Montageart | Pins | Reihen | H (mm) | Gender | Typ | IR (A) | Verpackung | Muster |
|---|