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Overview
| Topology | Boost Converter |
| Input voltage | 8-36 V |
| Switching frequency | 100-3000 kHz |
| Output 1 | 48.3 V / 18 A |
Description
The evaluation circuit EVAL-LTC7893-AZ is a single output synchronous step-up converter that drives GaN field effect transistors (FETs). The EVAL-LTC7893-AZ evaluation board features 100V GaN FETs.The EVAL-LTC7893-AZ features the LTC®7893: a low quiescent current, high frequency (programmable fixed frequency from 100kHz up to 3MHz), step-up DC/DC synchronous controller, with a dedicated driver feature for GaN FETs, which can also be used to drive logic-level silicon FETs.The EVAL-LTC7893-AZ operates over an input voltage range from 8V to 36V and produces a 48V output with load current up to 18A (without heatsink). A mode selector allows the EVAL-LTC7893-AZ to operate in forced continuous operation, pulse-skipping or Burst Mode® operation during light loads. The EVAL-LTC7893-AZ is set to 500kHz switching frequency, which results in a small and efficient circuit.
Features
GaN Drive Technology Fully Optimized for GaN FETsOutput Voltage Up to 100VWide VIN Range: 4V to 60V and Operates Down to 1V after Start-UpNo Catch, Clamp, or Bootstrap Diodes NeededInternal Smart Bootstrap Switches Prevent Overcharging of High-Side Driver SupplyResistor-Adjustable Dead TimesSplit-Output Gate Drivers for Adjustable Turn On and Turn Off Driver StrengthsAccurate Adjustable Driver Voltage and UVLOLow Operating IQ: 15μAProgrammable Frequency (100kHz to 3MHz)Synchronizable Frequency (100kHz to 3MHz)Spread Spectrum Frequency Modulation28-Lead (4mm × 5mm), Side Wettable, QFN PackageAEC-Q100 Qualified for Automotive Applications
Typical applications
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Wire Type | L (mm) | Ti | Ø OD (mm) | Ø ID (mm) | Qty. | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443630310 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCF SMT High Current Inductor | 3.1 | 33.15 | 41 | 45 | 2.3 | 29 | Flat | 20.8 | – | – | – | 100 | 2 | – | 13.5 | – | – | 26 | – | ||
 | 9774010243R | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WA-SMSI SMT Steel Spacer with internal Thread M2 | – | – | – | – | – | – | – | 1 | M2 | 4.35 | 2.8 | 1500 | – | – | – | – | – | – | Tape and Reel | |
 | 62000621121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.00 mm THT Dual Pin Header | – | – | – | – | – | – | – | 6 | – | – | – | 1000 | 6 | Dual | – | Pin Header | Straight | 2 | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443630310 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 9774010243R | SPEC | – |
| 62000621121 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Wire Type | L (mm) | Ti | Ø OD (mm) | Ø ID (mm) | Qty. | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
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