Overview
The ADP1055ACPZ-R7, produced by Analog Devices Inc., is a flexible and feature-rich digital secondary side controller designed for ac-to-dc and isolated dc-to-dc power supply applications. This controller is optimized for minimal component count, maximum flexibility, and reduced design time. It integrates a comprehensive set of features including digital control loops, programmable loop filters, and extensive protection mechanisms, making it an ideal choice for complex power supply systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 3.3 | V |
| Output Type | Adjustable | |
| Temperature Range | −40°C to +125°C | |
| Package Type | 32-Lead Lead Frame Chip Scale Package (LFCSP_WQ) | |
| ADC Update Rate | 10.5 ms | |
| ADC Resolution | 12 bits | |
| Measurement Accuracy (FSR) | −2.75% to +2.75% | |
| Leakage Current | 1.0 μA |
Key Features
- Digital control loop with PID and additional pole or zero configurability
- Programmable loop filters (CCM, DCM, low/normal temperature)
- Fast line voltage feedforward and adaptive dead time compensation
- Remote voltage sense and redundant programmable OVP
- Primary and secondary side cycle-by-cycle fast protection and secondary side averaged reverse current protection
- Synchronous rectifier control for improved efficiency in light load mode
- Nonlinear gain for faster transient response from DCM to CCM
- Frequency synchronization and soft start/stop functionality
- Average and peak constant current mode
- External PN junction temperature sensing and user trimming on input and output voltages and currents
- Digital current sharing and extended black box data recorder for fault recording
- 4 GPIOs (2 GPIOs configurable as active clamp snubber PWMs)
- Industry-standard PMBus interface for monitoring and system test functions
Applications
- Isolated dc-to-dc power supplies and modules
- Redundant power supply systems
- Ac-to-dc and isolated dc-to-dc secondary side applications
Q & A
- What is the primary function of the ADP1055ACPZ-R7?
The ADP1055ACPZ-R7 is a digital secondary side controller designed for ac-to-dc and isolated dc-to-dc power supply applications.
- What is the operating supply voltage of the ADP1055ACPZ-R7?
The operating supply voltage is 3.3 V.
- What is the temperature range of the ADP1055ACPZ-R7?
The temperature range is −40°C to +125°C.
- What type of package does the ADP1055ACPZ-R7 come in?
The ADP1055ACPZ-R7 comes in a 32-Lead Lead Frame Chip Scale Package (LFCSP_WQ).
- What are some key protection features of the ADP1055ACPZ-R7?
The key protection features include overcurrent (OCP), overvoltage (OVP) limiting, undervoltage lockout (UVLO), and external overtemperature (OTP) protection.
- Does the ADP1055ACPZ-R7 support digital current sharing?
- What interface does the ADP1055ACPZ-R7 use for monitoring and system test functions?
The ADP1055ACPZ-R7 uses the industry-standard PMBus interface.
- What is the resolution of the ADC in the ADP1055ACPZ-R7?
The ADC resolution is 12 bits.
- Does the ADP1055ACPZ-R7 have built-in EEPROM for programming?
- What are some of the applications of the ADP1055ACPZ-R7?
The ADP1055ACPZ-R7 is used in isolated dc-to-dc power supplies and modules, redundant power supply systems, and ac-to-dc and isolated dc-to-dc secondary side applications.
