ADP1053ACPZ-R7 datasheet(1/84 Pages) AD

номер детали	ADP1053ACPZ-R7

подробное описание детали	3-Channel Digital

PDF	84 Pages

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производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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3-Channel Digital

Power Supply Controller

Data Sheet

ADP1053

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

FEATURES

Configurable 8-PWM engine with up to 3 channels

2 independent digitally controlled channel outputs

Voltage mode PWM control with 625 ps resolution

Remote voltage sensing on both channels

Programmable compensation filters

Voltage feedforward option

Flexible start-up sequencing and tracking

Switching frequency: 50 kHz to 625 kHz

Frequency synchronization

Independent channel protections: OVP and OCP

2 independent OTP circuits

Programmable fault protection sequence

Volt-second balance and dual-phase current balance

for interleaved configurations

On-board EEPROM

PMBus-compliant

Graphical user interface (GUI) for ease of programming

Available in a 40-lead, 6 mm × 6 mm LFCSP

APPLICATIONS

AC-to-DC power supplies

Isolated dc-to-dc power supplies

Intermediate rail power supplies

Nonisolated dc-to-dc power converter

GENERAL DESCRIPTION

The ADP1053, based on a voltage mode PWM architecture, is

a flexible, application dedicated digital controller designed for

isolated and nonisolated dc-to-dc power supply applications.

The ADP1053 enables highly efficient power supply design and

facilitates the introduction of intelligent power management

techniques to improve energy efficiency at a system level.

The ADP1053 provides control, monitoring, and protection

of up to three independent channel outputs. The eight flexible

PWM outputs can be configured as three independent channels:

two regulated channels with feedback control plus one additional

unregulated channel with a fixed duty cycle. The frequency of

these three channels can be programmed individually from

50 kHz to 625 kHz; all channels can be synchronized internally

or to an external signal.

All eight PWM outputs can also be assigned to enable a single-

channel solution, which may be required in high power, high

efficiency applications.

Features include differential voltage sensing, fast current sensing,

flexible start-up sequencing and tracking, and synchronization

between devices to reduce low frequency system noise. Protection

and monitoring features include overcurrent protection (OCP),

undervoltage protection (UVP), overvoltage protection (OVP),

and overtemperature protection (OTP).

SIMPLIFIED TYPICAL APPLICATION CIRCUIT

DRIVER

ADP1053

PWM

OUTPUTS

CS2–_A

CS2+_A

VS+_A

VS–_A

RSENSE

VOUT A+

VOUT A–

LOAD

VIN_DC

iCoupler

DUPLICATE THE ABOVE SCHEMATICS FOR CHANNEL B

VOUT B+

VOUT B–

Figure 1.

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