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| 型号： | ADP1048ARQZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/84页 |
| 文件大小： | 0K |
| 描述： | IC DGTL PFC CTRLR 24QSOP |
| 标准包装： | 1 |
| 模式： | 平均电流 |
| 频率 - 开关： | 30kHz ~ 400kHz |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-QSOP |
| 包装： | 标准包装 |
| 其它名称： | ADP1048ARQZ-R7DKR |
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Digital Power Factor Correction Controller
with Accurate AC Power Metering
Data Sheet
FEATURES
Flexible digital power factor correction (PFC) controller
Single phase operation ( ADP1047 ); interleaved and
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
ADP1047/ADP1048
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.
AC/DC power supplies for applications
Computing server and storage
Network and communication infrastructure
Industrial and medical
TYPICAL APPLICATIONS CIRCUIT
V REC
RELAY
V OUT
BULK
CAPACITOR
AC
INPUT
3.3V
1
2
3
4
5
6
7
8
9
10
11
12
AGND
VAC
VFB
OVP
PGND
ILIM
NC
CS–
CS+
DGND
PSON
VCORE
VDD 24
RES 23
RTD 22
ADD 21
SDA 20
SCL 19
SYNC 18
INRUSH 17
PGOOD 16
AC_OK 15
PWM2 14
PWM 13
PMBus
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.
Trademarks and registered trademarks are the property of their respective owners.
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.
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