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PDF ADP1047 Data sheet ( Hoja de datos )
| Número de pieza | ADP1047 | |
| Descripción | (ADP1047 / ADP1048) Digital Power Factor Correction Controller | |
| Fabricantes | Analog Devices | |
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Hay una vista previa y un enlace de descarga de ADP1047 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Data Sheet
Digital Power Factor Correction Controller
with Accurate AC Power Metering
ADP1047/ADP1048
FEATURES
Flexible digital power factor correction (PFC) controller
Single phase operation (ADP1047); interleaved and
bridgeless operation (ADP1048)
True rms ac power metering
Enhanced dynamic response
Optimized light load efficiency performance
Output voltage adjustment
Frequency reduction
Inrush current control
Switching frequency spread spectrum for improved EMI
External frequency synchronization
PMBus compliant
Programmable ac line fault detection and protection
Programmable output fault detection and protection
Extensive fault protection for high reliability systems
Frequency range from 30 kHz to 400 kHz
8 kB EEPROM
Programming via easy-to-use graphical user interface (GUI)
APPLICATIONS
AC/DC power supplies for applications
Computing server and storage
Network and communication infrastructure
Industrial and medical
GENERAL DESCRIPTION
The ADP1047/ADP1048 are digital power factor correction
(PFC) controllers that provide accurate input power metering
capability and inrush current control for ac/dc systems. The
ADP1047 is designed for single phase PFC applications; the
ADP1048 is designed especially for interleaved and bridgeless
PFC applications.
The digital PFC function is based on a conventional boost PFC
with multiplication of the output voltage feedback combined with
the input current and voltage to provide optimum harmonic
correction and power factor for ac/dc systems. All signals are
converted into the digital domain to provide maximum flexibility;
all key parameters can be reported and adjusted via the PMBus™
interface. The ADP1047/ADP1048 allow users to optimize system
performance, maximize efficiency across the load range, and
reduce design time to market.
The ADP1047/ADP1048 provide accurate rms measurement
of input voltage, current, and power. This information can be
reported to the microcontroller of the power supply via the
PMBus interface.
TYPICAL APPLICATIONS CIRCUIT
VREC
RELAY
VOUT
AC
INPUT
BULK
CAPACITOR
3.3V
1 AGND
2 VAC
3 VFB
4 OVP
5 PGND
6 ILIM
7 NC
8 CS–
9 CS+
10 DGND
11 PSON
12 VCORE
VDD 24
RES 23
RTD 22
ADD 21
SDA 20
PMBus
SCL 19
SYNC 18
INRUSH 17
PGOOD 16
AC_OK 15
PWM2 14
PWM 13
ADP1047
Figure 1.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. 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
©2011 Analog Devices, Inc. All rights reserved.
Free Datasheet http://www.datasheet4u.com/
1 page  
Data Sheet
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 ADP1047/ADP1048 provide enhanced integrated features
and functions; the inrush current and soft start control functions
provide significant component count reduction with easy design
optimization.
ADP1047/ADP1048
The devices are designed for high reliability, redundant power
supply applications and have 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 ADP1047/ADP1048 operate from a single 3.3 V supply. The
devices are available in a 24-lead QSOP package that is specified
over an ambient temperature range of −40°C to +85°C.
AC
INPUT
VREC
RELAY
VOUT
BULK
CAPACITOR
3.3V
1 AGND
2 VAC
3 VFB
4 OVP
5 PGND
6 ILIM
7 IBAL
8 CS–
9 CS+
10 DGND
11 PSON
12 VCORE
VDD 24
RES 23
RTD 22
ADD 21
SDA 20
PMBus
SCL 19
SYNC 18
INRUSH 17
PGOOD 16
AC_OK 15
PWM2 14
PWM 13
ADP1048
Figure 2. Typical Interleaved Application, ADP1048
Rev. 0 | Page 5 of 84
Free Datasheet http://www.datasheet4u.com/
5 Page 
Data Sheet
ADP1047/ADP1048
FUNCTIONAL BLOCK DIAGRAMS
CS– CS+ ILIM
ADP1047
VAC PGND VFB
OVP
+–
PGND
DAC
ADC
ADC
ADC
INRUSH
CS OCP
VAC
VFB OLP OVP
PWM
PWM2
VDD
VCORE
RES
PWM
ENGINE
UVLO
LDO
VREF
DIGITAL CORE
8kB EEPROM
I2C
INTERFACE
ADC
OSC
ADD
RTD AGND DGND
Figure 5. ADP1047 Functional Block Diagram
INRUSH
PWM
PWM2
VDD
VCORE
RES
ADP1048
IBAL CS– CS+ ILIM
PGND
VAC PGND VFB
ADC ADC
ADC
ADC
OVP
+–
DAC
PGND
CS CS OCP
VAC
VFB OLP OVP
PWM
ENGINE
UVLO
LDO
VREF
DIGITAL CORE
8kB EEPROM
I2C
INTERFACE
ADC
OSC
ADD
RTD AGND
DGND
Figure 6. ADP1048 Functional Block Diagram
PGOOD
AC_OK
SYNC
PSON
SCL
SDA
PGOOD
AC_OK
SYNC
PSON
SCL
SDA
Rev. 0 | Page 11 of 84
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADP1047.PDF ] | |
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