EVAL-LTC7892-BZ: 100V Synchronous Step-Up GaN FET Controller Evaluation Board
Evaluation board for the LTC7892 step-up controller featuring 100V GaN FETs. Supports 9V–36V input and 48V/30A output with up to 99% efficiency at 500kHz.
Overview
The EVAL-LTC7892-BZ evaluation circuit demonstrates the LTC7892, a high-frequency synchronous step-up controller optimized for 100V Gallium Nitride (GaN) FETs. The board operates from a 9V to 36V input range, producing a 48V output at up to 30A with an optional heatsink. It features an internally optimized bootstrap switch, adaptive dead-time control, and split gate drivers for GaN FET integration. The design is set to a 500kHz switching frequency but is programmable up to 3MHz and includes spread spectrum frequency modulation (SSFM) for improved EMI performance. Achieving peak efficiencies near 99%, the board is suitable for high-power density applications in industrial and telecommunications sectors.
Use Cases
- Industrial power supplies
- Military systems
- Medical electronics
- Telecommunications equipment
- High-density DC-DC boost conversion
Topics
Referenced Parts
Keystone Electronics
CONN-PCB, BANANA JACK, FEMALE, NON-INSULATED, THT, SWAGE, 0.218 INCHES LENGTH 575-4
Samtec
CONN-PCB 3POS MALE HDR UNSHROUDED SINGLE ROW, 2MM PITCH, 3MM SOLDER TAIL TMM-103-02-G-S
LTC7892
Analog Devices
The LTC7892 is a 100V step-up synchronous Gallium Nitride (GaN) field effect transistor (FET) controller
LTC7892AUJM#TRPBF
Analog Devices
LTC7892AUJM#TRPBF IC-ADI LOW IQ, DUAL, 2-PHASE SYNCHRONOUS BOOST CONTROLLER FOR GAN FETS
EPC2218
EPC
TRAN MOSFET N-CH GAN 100V 60A EPC2218
EEH-ZU1H151P
Panasonic
CAP ALUM POLY 150UF 50V 20% 10.3X12.8MM AEC-Q200 EEH-ZU1H151P
ERJ-2BQF1R0X
Panasonic
RES SMD 1Ω 1% 1/6W 0402 AEC-Q200 ERJ-2BQF1R0X
KFH-032-10ET
PennEngineering
CONN-PCB THREADED BROACHING STUD, 625MIL LENGTH KFH-032-10ET
KRL6432E-C-R002-G-T1
Susumu
RES SMD 0.002 2% 3W 1225 AEC-Q200 KRL6432E-C-R002-G-T1
567-45AB
Wakefield-Vette
The board is designed for the Wakefield-Vette 567-45AB heatsink
9774010243R
Wurth Elektronik
Würth Elektronik 9774010243R spacers
RC0402FR-072RL
Yageo
RES SMD 2Ω 1% 1/16W 0402 RC0402FR-072RL
| 06033C102KAT2A | AVX | CAP CER 1000pF 25V 10% X7R 0603 06033C102KAT2A |
| 06035C333JAT2A | AVX | CAP CER 0.033μF 50V 5% X7R 0603 06035C333JAT2A |
| SER2013-362MLD | Coilcraft | IND POWER SHIELDED WIREWOUND, 0.0018Ω DCR, 25A SER2013-362MLD |
| C0603C104K3RACTU | Kemet | CAP CER 0.1μF 25V 10% X7R 0603 C0603C104K3RACTU |
| 575-4 | Keystone Electronics | CONN-PCB, BANANA JACK, FEMALE, NON-INSULATED, THT, SWAGE, 0.218 INCHES LENGTH 575-4 |
| 2501-2-00-80-00-00-07-0 | Mill-Max | CONN-PCB SOLDER TERMINAL TEST POINT TURRET 2501-2-00-80-00-00-07-0 |
| 73415-2063 | Molex | CONN-PCB MMCX JACK STR 50Ω 0-6GHZ 734152063 |
| GRM188R72A104KA35D | Murata | CAP CER 0.1μF 100V 10% X7R 0603 GRM188R72A104KA35D |
| GRM32EC72A106KE05L | Murata | CAP CER 10UF 100V 10% X7S 1210 GRM32EC72A106KE05L |
| GRM32ER71H106KA12L | Murata | CAP CER 10μF 50V 10% X7R 1210 GRM32ER71H106KA12L |
| GRT188R61E475KE13D | Murata | CAP CER 4.7μF 25V 10% X5R 0603 AEC-Q200 GRT188R61E475KE13D |
| EEHZC1J680P | Panasonic | CAP ALUM POLY 68UF 63V 20% 10X10.2MM AEC-Q200 0.03Ω 1400MA 4000H EEHZC1J680P |
| ERA-3AEB153V | Panasonic | RES SMD 15KΩ 0.1% 1/10W 0603 AEC-Q200 HIGH RELIABILITY ERA-3AEB153V |
| ERJ-3EKF1001V | Panasonic | RES SMD 1KΩ 1% 1/10W 0603 AEC-Q200 ERJ-3EKF1001V |
| ERJ-3EKF1003V | Panasonic | RES SMD 100KΩ 1% 1/10W 0603 AEC-Q200 ERJ-3EKF1003V |
| ERJ-3EKF1401V | Panasonic | RES SMD 1.4KΩ 1% 1/10W 0603 AEC-Q200 ERJ-3EKF1401V |
| ERJ-3EKF2492V | Panasonic | RES SMD 24.9KΩ 1% 1/10W 0603 AEC-Q200 ERJ-3EKF2492V |
| ERJ-3EKF2552V | Panasonic | RES SMD 25.5KΩ 1% 1/10W 0603 AEC-Q200 ERJ-3EKF2552V |
| ERJ-3EKF49R9V | Panasonic | RES SMD 49.9Ω 1% 1/10W 0603 AEC-Q200 ERJ-3EKF49R9V |
| ERJ-3EKF51R0V | Panasonic | RES SMD 51Ω 1% 1/10W 0603 AEC-Q200 ERJ-3EKF51R0V |
| ERJ-3EKF7502V | Panasonic | RES SMD 75KΩ 1% 1/10W 0603 AEC-Q200 ERJ-3EKF7502V |
| TMM-103-02-G-S | Samtec | CONN-PCB 3POS MALE HDR UNSHROUDED SINGLE ROW, 2MM PITCH, 3MM SOLDER TAIL TMM-103-02-G-S |
| TMM-103-02-L-D | Samtec | CONN-PCB 6POS UNSHROUDED HEADER VERT 2MM PITCH TMM-103-02-L-D |
| C1608X8R1H102K080AA | TDK | CAP CER 1000pF 50V 10% X8R 0603 C1608X8R1H102K080AA |
| C2012X7S2A105K125AB | TDK | CAP CER 1μF 100V 10% X7S 0805 C2012X7S2A105K125AB |
| HMK107C7224KAHTE | Taiyo Yuden | CAP CER 0.22μF 100V 10% X7S 0603 AEC-Q200 HMK107C7224KAHTE |
| CRCW06030000Z0EA | Vishay | RES SMD 0Ω JUMPER 1/10W 0603 AEC-Q200 PRECISION POWER CRCW06030000Z0EA |
| CRCW0603158KFKEA | Vishay | RES SMD 158KΩ 1% 1/10W 0603 AEC-Q200 CRCW0603158KFKEA |
| CRCW06031M00FKEA | Vishay | RES SMD 1MEG Ohm 1% 1/10W 0603 AEC-Q200 CRCW06031M00FKEA |
| SS10PH10-M3/86A | Vishay | DIODE SCHOTTKY 100V 10A, AEC-Q101 COMMON CATHODE TO-277A SS10PH10-M3/86A |
| WSL251200000ZEA9 | Vishay | RES SMD 0Ω JUMPER 2512 AEC-Q200 WSL251200000ZEA9 |
| 60800213421 | Wurth Electronics | SHUNT, 2MM JUMPER WITH TEST POINT 60800213421 |
| LTC7892 | Analog Devices | The LTC7892 is a 100V step-up synchronous Gallium Nitride (GaN) field effect transistor (FET) controller |
| LTC7892AUJM#TRPBF | Analog Devices | LTC7892AUJM#TRPBF IC-ADI LOW IQ, DUAL, 2-PHASE SYNCHRONOUS BOOST CONTROLLER FOR GAN FETS |
| EPC2218 | EPC | TRAN MOSFET N-CH GAN 100V 60A EPC2218 |
| EEH-ZU1H151P | Panasonic | CAP ALUM POLY 150UF 50V 20% 10.3X12.8MM AEC-Q200 EEH-ZU1H151P |
| ERJ-2BQF1R0X | Panasonic | RES SMD 1Ω 1% 1/6W 0402 AEC-Q200 ERJ-2BQF1R0X |
| KFH-032-10ET | PennEngineering | CONN-PCB THREADED BROACHING STUD, 625MIL LENGTH KFH-032-10ET |
| KRL6432E-C-R002-G-T1 | Susumu | RES SMD 0.002 2% 3W 1225 AEC-Q200 KRL6432E-C-R002-G-T1 |
| 567-45AB | Wakefield-Vette | The board is designed for the Wakefield-Vette 567-45AB heatsink |
| 9774010243R | Wurth Elektronik | Würth Elektronik 9774010243R spacers |
| RC0402FR-072RL | Yageo | RES SMD 2Ω 1% 1/16W 0402 RC0402FR-072RL |