ADP1043AACPZ-RL View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADP1043AACPZ-RL Datasheet PDF : 72 Pages
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FEATURES
Integrates all typical controller functions
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
APPLICATIONS
AC-to-DC power supplies
Isolated dc-to-dc power supplies
Redundant power supplies
Parallel power supplies
Server, storage, network, and communications infrastructure
Digital Controller for Isolated
Power Supply Applications
ADP1043A
GENERAL 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 moni-
toring and system test functions.
The ADP1043A is available in a 32-lead LFCSP and operates
from a single 3.3 V supply.
PFC
AC
INPUT
DRIVER
TYPICAL APPLICATION CIRCUIT
ADuM1410
DRIVER
DRIVER
SR1 SR2 ACSNS
CS1
PGND CS2– CS2+
VS1 GATE VS2
VS3+
OUTA
OUTB
OUTC
OUTD
OUTAUX
RES ADD RTD VCORE FLAGIN PSON PGOOD2 PGOOD1 SDA SCL
VS3–
SHAREo
SHAREi
VDD DGND AGND
VDD
Figure 1.
MICROCONTROLLER
LOAD
Rev. 0
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