ADP1043A Series

Digital Controller for Isolated Power Supply Applications

Catalog

Digital Controller for Isolated Power Supply Applications

Part	Voltage - Input [Max]	Package / Case	Applications	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Supplier Device Package	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices ADP1043AACPZ-R7	1.55 V	32-VFQFN Exposed Pad CSP	Power Supplies	3.1 V	3.6 V	Surface Mount	32-LFCSP-VQ (5x5)	20 mA	85 °C	-40 °C
Analog Devices ADP1043AACPZ-RL	1.55 V	32-VFQFN Exposed Pad CSP	Power Supplies	3.1 V	3.6 V	Surface Mount	32-LFCSP-VQ (5x5)	20 mA	85 °C	-40 °C
Analog Devices ADP1043ACPZ	1.55 V	32-VFQFN Exposed Pad CSP	Power Supplies	3.1 V	3.6 V	Surface Mount	32-LFCSP-VQ (5x5)	20 mA	85 °C	-40 °C

Catalog

Digital Controller for Isolated Power Supply Applications

Key Features

• Integrates all typical controller functionsDigital control loopRemote and local voltage sensePrimary and secondary side current sensePWM controlSynchronous rectifier controlCurrent sharingIntegrated programmable loop filter

• Digital control loop

• Remote and local voltage sense

• Primary and secondary side current sense

• PWM control

• Synchronous rectifier control

• Current sharing

• Integrated programmable loop filter

• I2C interface

• Extensive fault detection and protection

• Extensive programming

• Fast calibration

• EEPROM

• Standalone or microcontroller control

Description

The ADP1043A is a secondary side power supply controller IC designed to provide all the functions that are typically needed in an ac-to-dc or isolated dc-to-dc control application.The ADP1043A is optimized for minimal component count, maximum flexibility, and minimum design time. Features include remote voltage sense, local voltage sense, primary and secondary side current sense, pulse-width modulation (PWM) generation, and hot-swap sense and control. The control loop is digital with an integrated programmable digital filter. Protection features include current limiting, ac sense, undervoltage lockout (UVLO), and overvoltage protection (OVP).The built-in EEPROM provides extensive programming of the integrated loop filter, PWM signal timing, inrush current, and soft start timing and sequencing. Reliability is improved through a built-in checksum and redundancy of critical circuits.A comprehensive GUI is provided for easy design of loop filter characteristics and programming of the safety features. The industry-standard I2C bus provides access to the many monitoring and system test functions.The ADP1043A is available in a 32-lead LFCSP and operates from a single 3.3 V supply.ApplicationsAC-to-DC power suppliesIsolated dc-to-dc power suppliesRedundant power suppliesParallel power suppliesServer, storage, network, and communications infrastructure