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ADP1043 데이터시트 PDF




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부품번호 ADP1043 기능
기능 Digital Controller
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ADP1043 데이터시트, 핀배열, 회로
Digital Controller
for Isolated Power Supply Applications
Preliminary Technical Data
ADP1043
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
www.DataSheet4UH.ocot-mswap sense and control
Current sharing
Integrated programmable loop filter
I2C interface
Extensive fault detection and protection
Extensive programming
Fast calibration
8 Kb EEPROM
Standalone or microcontroller control
APPLICATIONS
AC/DC power supplies
Isolated dc/dc power supplies
Redundant power supplies
Parallel power supplies
Server, storage, network, and communications infrastructure
PRODUCT OVERVIEW
The ADP1043 is a secondary side power supply controller IC
that is designed to provide all the functions that are typically
needed in an isolated ac/dc or dc/dc control application.
The ADP1043 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, 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, UVLO, and OVP (overvoltage protection).
The built-in EEPROM provides extensive programming of the
integrated loop filter, PWM signal timing, inrush current, 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 gives access to the many monitoring
and system test functions.
The ADP1043 is available in a 32-lead LFCSP package and
operates from a single 3.3 V supply.
PFC
AC
INPUT
LOAD
DRIVER
ADuM1400
DRIVER
DRIVER
SR1 SR2 ACSNS CS2+ CS2–
CS1
PGND VS1
GATE
VS2
VS3+
OUTA
OUTB
OUTC
OUTD
OUTAUX
ADP1043
RES ADD RTD VCORE FLAGIN PSON PGOOD2 PGOOD1 SDA SCL
VS3–
SHAREo
SHAREi
VDD DGND AGND
VDD
MICROCONTROLLER
Figure 1. Typical Application Circuit
Rev. PrA
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
©2008 Analog Devices, Inc. All rights reserved.




ADP1043 pdf, 반도체, 판매, 대치품
ADP1043
Pin No.
17
18
19
20
21
22
23
www.DataSheet4U.com
24
25
26
27
28
29
30
31
32
Mnemonic
SCL
SDA
PSON
FLAGIN
PGOOD2
PGOOD1
SHAREo
SHAREi
DGND
VCORE
VDD
RTD
ADD
RES
VS3−
VS3+
Preliminary Technical Data
Description
I2C Serial Clock Input. This signal is referred to AGND.
I2C Serial Data Input and Output (Open Drain). This signal is referred to AGND.
Power Supply On Input. This signal is referred to DGND.
Flag Input. An external signal can be input here to generate a flag condition.
Power-Good Output (Open Drain). This signal is referred to AGND. This pin is controlled
by the PGOOD2 flag. If any flag is set, this pin toggles.
Power-Good Output (Open Drain). This signal is referred to AGND. This pin is controlled
by the PGOOD flag. If any of the following are out of range, this pin toggles: ACSNS, OCP
CS1, OCP CS2, VS1 OVP, VS2 OVP, or UVP.
Share Bus Output Voltage Pin. When configured as a digital share bus, this pin is a digital
output. When configured as an analog share bus, this pin is an open-drain analog output.
This signal is referred to VS3−.
Analog Share Bus Feedback Pin. This signal is input to an ADC in the ADP1043. This
signal is referred to VS3−.
Digital Ground. This pin is the ground for the digital circuitry of the ADP1043. Star
connect to AGND.
Output of 2.5 V Regulator. Connect a 100 nF capacitor from this point to DGND.
Positive Supply Input. Range is from 3 V to 3.6 V. This signal is referred to AGND.
Thermistor Input. A 10 kΩ or 100 kΩ thermistor is placed from this pin to AGND. This
signal is referred to AGND.
Address Select Input. Connect a resistor from ADD to GND. This signal is referred to
AGND.
Resistor Input. This pin sets up the internal voltage reference for the ADP1043. Connect a
50 kΩ resistor (±1%) from RES to GND. This signal is referred to AGND. Decoupling this
pin to AGND is recommended for noise immunity.
Inverting Remote Voltage Sense Input. There should be a low ohmic contact to AGND.
Noninverting Remote Voltage Sense Input. This signal is referred to VS3−.
Rev. PrA | Page 4 of 8

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ADP1043 전자부품, 판매, 대치품
Preliminary Technical Data
NOTES
www.DataSheet4U.com
ADP1043
Rev. PrA | Page 7 of 8

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