DC1029B: LTC2928 Multichannel Power Supply Sequencer and Supervisor Demonstration Circuit
Evaluation board for the LTC2928, a multichannel power supply sequencer and supervisor that manages power-up/down and monitoring for up to four voltage channels.
Overview
Demonstration circuit 1029B is designed to evaluate the LTC2928, a multichannel power supply sequencer and supervisor. The LTC2928 sequences and monitors up to four power channels during power-up, steady state, and power-down phases by controlling power supply enable inputs or N-channel MOSFET gates. The board features four integrated low dropout (LDO) regulators (LT1761 series) providing 2.5V, 1.5V, 1.8V, and 3.3V rails for internal evaluation, though it can also be used with external supplies. Supervisory functions include undervoltage and overvoltage monitoring, with LED indicators for status signals and fault detection. Configuration options for sequencing time positions, thresholds, and timer periods are available via 19 on-board jumpers and adjustable capacitors.
Use Cases
- Evaluating multichannel power supply sequencing and supervision systems.
- Prototyping fault detection and status monitoring for multi-rail voltage systems.
- Configuring power-up and power-down timing sequences for processors and FPGAs.
- Testing undervoltage and overvoltage threshold monitoring in power management designs.
Topics
Referenced Parts
IRL3704ZSPBF
Infineon Technologies
Q10 IRL3704ZSPBF
| LT1761ES5-1.5 | Analog Devices | U4 LT1761ES5-1.5 |
| LT1761ES5-1.8 | Analog Devices | U5 LT1761ES5-1.8 |
| LT1761ES5-2.5 | Analog Devices | U3 LT1761ES5-2.5 |
| LT1761ES5-3.3 | Analog Devices | U6 LT1761ES5-3.3 |
| LTC2928CUHF | Analog Devices | U1 LTC2928CUHF |
| LTC2950CTS8-1 | Analog Devices | U2 LTC2950CTS8-1 |
| 2N7002 | Onsemi | Q1 2N7002 |
| IRL3704ZSPBF | Infineon Technologies | Q10 IRL3704ZSPBF |