IC-Hersteller Analog Devices

IC-Hersteller (96)

Analog Devices LTC7801EUFD | Demoboard DC2641A

High Input Voltage Synchronous Buck Converter

Details

TopologieAbwärtswandler
Eingangsspannung16-100 V
Schaltfrequenz75-850 kHz
Ausgang 112.24 V / 10 A
IC-Revision00

Beschreibung

Demonstration circuit 2641A is a single output synchronousbuck converter featuring the LTC7801EUFD in the24-lead QFN package. The input voltage range is from16V to 100V and the output is 12V/10A. The DC2641A isconfigured with a sense resistor for over current protection.Inductor DCR current sensing is optional.

Eigenschaften

  • Wide VIN Range: 4V to 140V (150V Abs Max)
  • Wide Output Voltage Range: 0.8V to 60V
  • Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE)
  • Low Operating IQ: 40μA (Shutdown = 10μA)
  • 100% Duty Cycle Operation
  • No External Bootstrap Diode Required
  • Selectable Gate Drive UVLO Thresholds
  • Onboard LDO or External NMOS LDO for DRVCC
  • EXTVCC LDO Powers Drivers from VOUT
  • Phase-Lockable Frequency (75kHz to 850kHz)
  • Programmable Fixed Frequency (50kHz to 900kHz)
  • Selectable Continuous, Pulse-Skipping or Low RippleBurst Mode® Operation at Light Loads
  • Adjustable Burst Clamp
  • Power Good Output Voltage Monitor
  • Programmable Input Overvoltage Lockout
  • Small 24-Lead 4mm × 5mm QFN or TSSOP Packages

Typische Anwendungen

  • Automotive and Industrial Power Systems
  • High Voltage Battery Operated Systems
  • Telecommunications Power Systems

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(mm)
f
(mm)
L
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
PinsReihenH
(mm)
GenderTypIR
(A)
Verpackung Muster
62000211121SPEC
6 Dateien WR-PHD 2.00 mm THT Pin Header 4 2 Single Pin Header Gerade 2 Beutel
62000821121SPEC
6 Dateien WR-PHD 2.00 mm THT Dual Pin Header 8 8 Dual Pin Header Gerade 2 Beutel
702935000SPEC
3 Dateien WA-SNSR Self-Retaining Spacer 12.7 4.8
7443633300SPEC
8 Dateien WE-HCF SMT-Hochstrominduktivität 20.8 33 13.3 9.5 11 12.54 13.5
60800213421SPEC
3 Dateien WR-PHD 2.00 mm Jumper with Test Point 2 Jumper 3 Beutel
Artikel Nr. Daten­blatt Simu­lation
62000211121SPEC
62000821121SPEC
702935000SPEC
7443633300SPEC
60800213421SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(mm)
f
(mm)
L
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
PinsReihenH
(mm)
GenderTypIR
(A)
Verpackung Muster