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Texas Instruments SN6505 | Demoboard TIDA-01606 HV Card
10-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design
Details
| Topologie | Gegentaktflusswandler |
| Eingangsspannung | 2.25-5.5 V |
| Schaltfrequenz | 160-420 kHz |
| Ausgang 1 | 5 V / 1 A |
| IC-Revision | E4 |
Beschreibung
The SN6505x is a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. It drives lowprofile, center-tapped transformers from a 2.25 V to 5 V DC power supply. Ultra-low noise and EMI areachieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC). The SN6505x consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive groundreferenced N-channel power switches. The device includes two 1-A Power-MOSFET switches to ensurestart-up under heavy loads. The switching clock can also be provided externally for accurate placement of switcher harmonics, or when operating with multiple transformer drivers. The internal protection featuresinclude a 1.7 A current limiting, under-voltage lockout,thermal shutdown, and break-before-make circuitry. SN6505x includes a soft-start feature that preventshigh inrush current during power up with large load capacitors. SN6505A has a 160 kHz internal oscillator for applications that need to minimize emissions whereas SN6505B has a 420 kHz internal oscillatorsfor applications that require higher efficiency and smaller transformer size. The SN6505x is available in a small 6-pin SOT23/DBV package. The device operation is characterized for a temperature rangefrom –55°C to 125°C.
Eigenschaften
- -Push-pull driver for transformers
- Wide input voltage range: 2.25 V to 5.5 V
- High output drive: 1 A at 5 V supply
- Low RON 0.25 Ω max at 4.5 V supply
- Ultra-low EMI
- Spread spectrum clocking
- Precision internal oscillator options: 160 kHz (SN6505A) and 420 kHz (SN6505B)
- Synchronization of multiple devices with external clock input
- Slew-rate control
- 1.7 A Current-limit
- Low shutdown current: <1 μA
- Thermal shutdown
- Wide temperature range: –55°C to 125°C
- Small 6-Pin SOT23 (DBV) package
- Soft-start to reduce In-rush current
Typische Anwendungen
- Isolated power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, low-power LAN, Low-noise isolated USB supplies, Telecom supplies, Radio supplies, Distributed supplies
- Medical instruments
- Process control, Precision instruments
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | λDom typ. (nm) | Farbe | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chiptechnologie | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Testbedingung Zmax | IR 2 (mA) | RDC max. (Ω) | Typ | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Pins | Reihen | Gender | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060VS55040 | SPEC | 6 Dateien | WL-SMCD SMT Mono-color Chip LED Diffused | 573 | Hellgrün | 575 | 60 | 2 | AlInGaP | 140 | – | – | – | 0603 | -40 °C up to +85 °C | – | – | – | 1.6 | 0.8 | – | – | – | – | – | – | – | – | – | 0.4 | – | – | – | Tape and Reel | ||
 | 742792662 | SPEC | 9 Dateien | WE-CBF SMT-Ferrit | – | – | – | – | – | – | – | – | – | – | 0603 | -55 °C up to +125 °C | – | – | – | 1.6 | 0.8 | 0.3 | 1000 | 1050 | 120 MHz | 830 | 0.3 | Breitband | 600 | 186 | 0.8 | – | – | – | – | ||
 | 74279228260 | SPEC | 8 Dateien | WE-MPSB EMI Multilayer Power Suppression Bead | – | – | – | – | – | – | – | – | – | – | 0603 | -55 °C up to +125 °C | – | – | – | 1.6 | 0.8 | 0.3 | 26 | 39 | 515 MHz | 6500 | 0.008 | High Current | 6500 | 33 | 0.8 | – | – | – | – | ||
 | 885012206040 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | 10 nF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Klasse II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206095 | SPEC | 8 Dateien | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | 100 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 5 GΩ | X7R Klasse II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
 | 61300411021 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Angled Pin Header | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 10.16 | – | – | – | – | – | – | – | Angled | 3000 | – | – | 4 | Single | Pin Header | Beutel |
| Artikel Nr. | Datenblatt | Simulation | |
|---|---|---|---|
| 150060VS55040 | SPEC | |
| 742792662 | SPEC | |
| 74279228260 | SPEC | |
| 885012206040 | SPEC | |
| 885012206095 | SPEC | |
| 61300411021 | SPEC | – |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | λDom typ. (nm) | Farbe | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chiptechnologie | 2θ50% typ. (°) | C | Tol. C | VR (V (DC)) | Bauform | Betriebstemperatur | DF (%) | RISO | Keramiktyp | L (mm) | W (mm) | Fl (mm) | Z @ 100 MHz (Ω) | Zmax (Ω) | Testbedingung Zmax | IR 2 (mA) | RDC max. (Ω) | Typ | IR (mA) | Z @ 1 GHz (Ω) | H (mm) | Pins | Reihen | Gender | Verpackung | Muster |
|---|