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Analog Devices LTC7810 | Demoboard DC2529A
150V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 16-130 V |
| Schaltfrequenz | 75-750 kHz |
| Ausgang 1 | 12 V / 5 A |
| Ausgang 2 | 5 V / 10 A |
Beschreibung
Demonstration circuit 2529A is a dual output synchronous buck converter featuring the LTC®7810ELXE in a 48-lead eLQFP package. Key features of this board include: an optional on-board NMOS LDO for DRVCC; jumper for spread-spectrum option; optional resistors for single output dual phase operation; a mode selector that allows the converter to run in CCM, pulse-skipping, adjustable burst clamp or default Burst Mode® operation; SYNC turret for Poly- Phase® operation. The input voltage range of this demo board is from 16V to 130V and it uses a sense resistor for overcurrent protection.The LTC7810 data sheet gives a complete description of the part, operation and application information and must be read in conjunction with this demo manual for DC2529A.
Eigenschaften
- Wide VIN Range: 4.5V to 140V (150V Abs Max)
- Wide Output Voltage Range: 1V VOUT 60V
- Low Operating IQ: 16 A (48VIN to 12VOUT and 3.3VOUT)
- Adjustable Gate Drive Level Up to 10V
- Optional Spread Spectrum Operation
- Very Low Dropout: 100% Duty Cycle Operation
- Low IQ in Dropout: 78μA (One Channel On)
- RSENSE or Inductor DCR Current Sensing
- Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
- Phase-Lockable Frequency (75kHz to 720kHz)
- Programmable Fixed Frequency (50kHz to 750kHz)
- Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads
- Onboard LDO or External NMOS LDO for DRVCC
- EXTVCC LDO Powers Drivers from VOUT
- Programmable Input Overvoltage Lockout
- 48-Lead (7mm × 7mm) eLQFP Package
Typische Anwendungen
- Industrial and Telecommunications
- Automotive and Transportation
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | f(mm) | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Drahttype | Pins | Typ | Montageart | L(mm) | H(mm) | IR(A) | Arbeitsspannung(V (AC)) | Betriebstemperatur | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCF SMT-Hochstrominduktivität, –, 15 µH | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCF SMT-Hochstrominduktivität | – | Induktivität15 µH | Performance Nennstrom15.4 A | Sättigungsstrom 119 A | Sättigungsstrom @ 30%21 A | Gleichstromwiderstand9.57 mΩ | Eigenresonanzfrequenz12.8 MHz | DrahttypeFlach | Pins2 | – | MontageartSMT | Länge20.8 mm | Höhe13.5 mm | Nennstrom14 A | – | Betriebstemperatur -40 °C up to +125 °C | ||||
| WE-HCF SMT-Hochstrominduktivität, –, 47 µH | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCF SMT-Hochstrominduktivität | – | Induktivität47 µH | Performance Nennstrom12.8 A | Sättigungsstrom 17.5 A | Sättigungsstrom @ 30%8.5 A | Gleichstromwiderstand13.42 mΩ | Eigenresonanzfrequenz10 MHz | DrahttypeFlach | Pins2 | – | MontageartSMT | Länge20.8 mm | Höhe13.5 mm | Nennstrom12 A | – | Betriebstemperatur -40 °C up to +125 °C | ||||
 | WA-SNSR Self-Retaining Spacer, 4.8 mm, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWA-SNSR Self-Retaining Spacer | Bohrung in Blende4.8 mm | – | – | – | – | – | – | – | – | – | – | Länge12.7 mm | – | – | – | Betriebstemperatur -30 °C up to +85 °C | |||
 | WR-PHD Kurzschlussbrücken, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Kurzschlussbrücken | – | – | – | – | – | – | – | – | Pins2 | – | – | – | – | Nennstrom3 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -25 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | – | – | Pins2 | TypGerade | MontageartTHT | Länge4 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | – | – | Pins3 | TypGerade | MontageartTHT | Länge6 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | – | – | Pins4 | TypGerade | MontageartTHT | Länge8 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C | |||
 | WR-PHD Stiftleisten, –, – | Simulation– | Downloads7 Dateien | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten | – | – | – | – | – | – | – | – | Pins8 | TypGerade | MontageartTHT | Länge8 mm | – | Nennstrom2 A | Arbeitsspannung200 V (AC) | Betriebstemperatur -40 °C up to +105 °C |