ADP1048WARQZ-R7 datasheet(5/82 Pages) AD

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Data Sheet

ADP1048W

The combination of a flexible, digitally controlled PFC engine

and accurate input power metering facilitates the adoption

of intelligent power management systems that are capable of

making decisions to improve end-user system efficiency. The

device supports additional efficiency improvements through

programmable frequency reduction at light load and the

capability to reduce the output voltage at light load.

The ADP1048W provides enhanced integrated features and

functions; the inrush current and soft start control functions

provide significant component count reduction with easy design

optimization.

The device is designed for high reliability, redundant power

supply applications, and has extensive and robust protection

circuitry: independent overvoltage protection (OVP) and

overcurrent protection (OCP), ground continuity monitoring,

and ac sensing. Internal overtemperature protection (OTP)

is provided whereby the external temperature can be recorded

via an external sensing device.

The internal 8 kB EEPROM stores all programmed values

and allows standalone control without a microcontroller. All

parametric reporting and adjustments can be programmed via

an easy-to-use GUI. No complex programming is required.

The ADP1048W operates from a single 3.3 V supply. The device

is available in a 24-lead QSOP package that is specified over an

ambient temperature range of −40°C to +125°C.

TYPICAL APPLICATIONS CIRCUIT

Figure 1. Typical Interleaved Application, ADP1048W

RES

RTD

ADD

SYNC

INRUSH

SCL

SDA

VAC

VFB

OVP

IBAL

ILIM

PGND

AGND

CS–

PSON

DGND

CS+

PWM2

VCORE

PWM

AC_OK

PGOOD

VDD

ADP1048W

VREC

RELAY

VOUT

BULK

CAPACITOR

3.3V

PMBus

INPUT

Rev. 0 | Page 5 of 82

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