DC1709A Programming Board for LTC3880 and LTC3880-1 DC/DC Controllers
The DC1709A is a programming board designed to verify and program the internal EEPROM of the LTC3880 and LTC3880-1 dual-phase DC/DC controllers using LTpowerPlay software.
Overview
The DC1709A demonstration circuit is a dedicated hardware platform for programming and verifying the internal EEPROM of Linear Technology's LTC3880 and LTC3880-1 dual-phase DC/DC controllers with digital power management. The board features a clamshell-style QFN socket (SKT1) for non-solder IC insertion, allowing users to load factory defaults or custom configuration files. The system integrates an LTC4361 for overvoltage and overcurrent protection and requires a DC1613A or DC1427A USB-to-I2C/PMBus controller to interface with a PC running LTpowerPlay software. It supports full telemetry readback and configuration of parameters including voltage, current limits, sequencing, and fault logging.
Use Cases
- Programming internal EEPROM for LTC3880/LTC3880-1 controllers
- Verifying factory default configuration settings
- Customizing digital power management parameters for prototyping
- Batch verification of IC configuration before assembly
- Development of PMBus-compliant power systems
Topics
Referenced Parts
Mill-Max
TURRET, TERM SOLDER, 0.156", 0.066"L MILL-MAX, 2501-2-00-80-00-00-07-0
98414-G06-12ULF
FCI Connector Corp.
CONN, HEADER, 12POS, 2mm, 2ROW GOLD FCI CONNECTOR CORP., 98414-G06-12ULF
2N7002
Fairchild Semiconductor
MOSFET N-CH, 60V, 115mA, SOT-23 FAIRCHILD SEMICONDUCTOR, 2N7002
8831
Keystone
SUPPORT POST NYLON SNAP-IN, 1/4" KEYSTONE, 8831
LTC3880
Linear Technology
The DC1709A is shipped with a LTC3880 installed in the clamshell style programming socket.
LTC3880EUJ
Linear Technology
LTC3880EUJ Programming Board for Dual-/ Two-Phase DC/DC Controller
LTC4361CTS8-2#PBF
Linear Technology
IC., OVERVOLTAGE/OVERCURRENT PROTECTION CONTROLLER LINEAR TECHNOLOGY, LTC4361CTS8-2#PBF
40QN50S16060-B
Plastronics
6×6 QFN FLAT LEAD LIDDED THROUGH-HOLE SOCKET PLASTRONICS, 40QN50S16060-B
RC0805FR-074K99L
Yageo
RES., 4.99kΩ, 1/8W, 1%, 0805, SMD YAGEO, RC0805FR-074K99L
LTC3880-1
Linear Technology
circuitry needed to program and verify the EEPROM within the LTC ® 3880 and LTC3880-1
8SOIC
Microchip
20 1 U2 IC., EEPROM, 2KBIT, 400kHz, 8SOIC MICROCHIP, 24LC025-I/SN
3-PIN
Samtec
21 2 JP1, JP2 HEADER, 0.079, SINGLE ROW, 3-PIN SAMTEC, TMM-103-02-L-S
SC70-6
Vishay
11 1 Q5 MOSFET, N-CH, 30V, 5.1A, SC70-6 VISHAY, Si1470DH-T1-E3
SOT23-3
Vishay
9 3 Q1, Q2, Q3 MOSFET P-CH, 20V, 580mA, SOT23-3 VISHAY, TP0101K-T1-E3
| 06033C103KAT2A | AVX | CAP., CER, 10000pF, 25V, 10%, X7R, 0603, OPT. AVX, 06033C103KAT2A |
| 0603YC104KAT2A | AVX | CAP., 0.10μF, 10%, 16V, X7R, 0603 AVX, 0603YC104KAT2A |
| TAJC105K050RNJ | AVX | CAP., TANTALUM, 1μF, 50V, 10%, SMD AVX, TAJC105K050RNJ |
| 24LC025-I/SN | Microchip | IC., EEPROM, 2KBIT, 400kHz, 8SOIC MICROCHIP, 24LC025-I/SN |
| 2501-2-00-80-00-00-07-0 | Mill-Max | TURRET, TERM SOLDER, 0.156", 0.066"L MILL-MAX, 2501-2-00-80-00-00-07-0 |
| 87831-1420 | Molex | CONN, HEADER, 14POS, 2mm, VERT GOLD MOLEX, 87831-1420 |
| LN1271RTR | Panasonic | LED, RED S-TYPE GULL WING, 2.03V, SMD PANASONIC, LN1271RTR |
| LN1371SGTRP | Panasonic | LED, GREEN S-TYPE GULL WING 2.03V, SMD PANASONIC, LN1371SGTRP |
| 2SN-BK-G | Samtec | SHUNT SAMTEC, 2SN-BK-G |
| TMM-103-02-L-S | Samtec | HEADER, 0.079, SINGLE ROW, 3-PIN SAMTEC, TMM-103-02-L-S |
| RL1220S-R50-F | Susumu | RES., 0.50Ω, 1/3W, 1%, 0805, SMD SUSUMU, RL1220S-R50-F |
| C3216X5R0J475K | TDK | CAP., 4.7μF, 6.3V, CERAMIC, X5R, 1206 TDK, C3216X5R0J475K |
| CRCW08051K00FKEA | Vishay | RES., 1.00kΩ, 1/8W, 1%, 0805, SMD VISHAY, CRCW08051K00FKEA |
| SI1470DH-T1-E3 | Vishay | MOSFET, N-CH, 30V, 5.1A, SC70-6 VISHAY, Si1470DH-T1-E3 |
| TP0101K-T1-E3 | Vishay | MOSFET P-CH, 20V, 580mA, SOT23-3 VISHAY, TP0101K-T1-E3 |
| RC0805FR-07100KL | Yageo | RES., 100kΩ, 1/8W, 1%, 0805, SMD YAGEO, RC0805FR-07100KL |
| RC0805FR-0710KL | Yageo | RES., 10.0kΩ, 1/10W, 1%, 0805, SM YAGEO, RC0805FR-0710KL |
| RC0805FR-071RL | Yageo | RES., 1.0Ω, 1/8W, 1%, 0805, SMD YAGEO, RC0805FR-071RL |
| 1206YZ105KAT | AVX | CAP., 1μF, 16V, CERAMIC, X7R, 1206 AVX, 1206YZ105KAT |
| 98414-G06-12ULF | FCI Connector Corp. | CONN, HEADER, 12POS, 2mm, 2ROW GOLD FCI CONNECTOR CORP., 98414-G06-12ULF |
| 2N7002 | Fairchild Semiconductor | MOSFET N-CH, 60V, 115mA, SOT-23 FAIRCHILD SEMICONDUCTOR, 2N7002 |
| 8831 | Keystone | SUPPORT POST NYLON SNAP-IN, 1/4" KEYSTONE, 8831 |
| LTC3880 | Linear Technology | The DC1709A is shipped with a LTC3880 installed in the clamshell style programming socket. |
| LTC3880EUJ | Linear Technology | LTC3880EUJ Programming Board for Dual-/ Two-Phase DC/DC Controller |
| LTC4361CTS8-2#PBF | Linear Technology | IC., OVERVOLTAGE/OVERCURRENT PROTECTION CONTROLLER LINEAR TECHNOLOGY, LTC4361CTS8-2#PBF |
| 40QN50S16060-B | Plastronics | 6×6 QFN FLAT LEAD LIDDED THROUGH-HOLE SOCKET PLASTRONICS, 40QN50S16060-B |
| RC0805FR-074K99L | Yageo | RES., 4.99kΩ, 1/8W, 1%, 0805, SMD YAGEO, RC0805FR-074K99L |
| LTC3880-1 | Linear Technology | circuitry needed to program and verify the EEPROM within the LTC ® 3880 and LTC3880-1 |
| 8SOIC | Microchip | 20 1 U2 IC., EEPROM, 2KBIT, 400kHz, 8SOIC MICROCHIP, 24LC025-I/SN |
| 3-PIN | Samtec | 21 2 JP1, JP2 HEADER, 0.079, SINGLE ROW, 3-PIN SAMTEC, TMM-103-02-L-S |
| SC70-6 | Vishay | 11 1 Q5 MOSFET, N-CH, 30V, 5.1A, SC70-6 VISHAY, Si1470DH-T1-E3 |
| SOT23-3 | Vishay | 9 3 Q1, Q2, Q3 MOSFET P-CH, 20V, 580mA, SOT23-3 VISHAY, TP0101K-T1-E3 |