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ADP1043 の電気的特性と機能

ADP1043のメーカーはAnalog Devicesです、この部品の機能は「Digital Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 ADP1043
部品説明 Digital Controller
メーカ Analog Devices
ロゴ Analog Devices ロゴ 




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ADP1043 Datasheet, ADP1043 PDF,ピン配置, 機能
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.

1 Page





ADP1043 pdf, ピン配列
Preliminary Technical Data
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADP1043
www.DataSheet4U.com
Table 1. Pin Function Descriptions
Pin No.
Mnemonic
1 VS2
2 AGND
3 VS1
4 CS2−
5 CS2+
6 ACSNS
7 CS1
8 PGND
9 SR1
10 SR2
11 OUTA
12 OUTB
13 OUTC
14 OUTD
15 OUTAUX
16 GATE
VS2 1
AGND 2
VS1 3
CS2– 4
CS2+ 5
ACSNS 6
CS1 7
PGND 8
PIN 1
INDICATOR
ADP1043
TOP VIEW
(Not to Scale)
24 SHAREi
23 SHAREo
22 PGOOD1
21 PGOOD2
20 FLAGIN
19 PSON
18 SDA
17 SCL
Figure 3. Pin Configuration
Description
Power Supply Output Sense Input. This signal is referred to PGND. Input to a low
frequency Σ-Δ ADC. Nominal voltage at this pin should be 1 V.
Analog Ground. This pin is the ground for the analog circuitry of the ADP1043. Star
connect to DGND.
Local Voltage Sense Input. This signal is referred to PGND. Input to a high frequency Σ-Δ
ADC. Nominal voltage at this pin should be 1 V.
Inverting Differential Current Sense Input. Nominal voltage at this pin should be 1 V for
best operation. When using high-side current sense in a 12 V application, a 110 kΩ
resistor should be placed between the sense resistor and this pin. When using low-side
current sense, a 10 kΩ resistor should be placed between the sense resistor and this pin.
When using high-side, use the formula R = (VCOMMONMODE − 1)/100 μA.
Noninverting Differential Current Sense Input. Nominal voltage at this pin should be 1 V
for best operation. When using high-side current sense in a 12 V application, a 110 kΩ
resistor should be placed between the sense resistor and this pin. When using low-side
current sense, a 10 kΩ resistor should be placed between the sense resistor and this pin.
When using high-side, use the formula R = (VCOMMONMODE − 1)/100 μA.
AC Sense Input. This input is connected upstream of the main inductor through a
resistor divider network. The nominal voltage at this pin should be 1 V. This signal is
referred to PGND.
Primary Side Differential Current Sense Input. This is the current transformer input to
measure and control the primary side current. This signal is referred to PGND.
Power Ground. This pin is the ground connection for the main power rail of the power
supply. Star connect to AGND.
Synchronous Rectifier Output. This PWM output is connected to the input of a FET driver.
This pin can be disabled when not in use. This signal is referred to AGND.
Synchronous Rectifier Output. This PWM output is connected to the input of a FET driver.
This pin can be disabled when not in use. This signal is referred to AGND.
PWM Output for Primary Side Switch. This pin can be disabled when not in use. This
signal is referred to AGND.
PWM Output for Primary Side Switch. This pin can be disabled when not in use. This
signal is referred to AGND.
PWM Output for Primary Side Switch. This pin can be disabled when not in use. This
signal is referred to AGND.
PWM Output for Primary Side Switch. This pin can be disabled when not in use. This
signal is referred to AGND.
Auxiliary PWM Output. This pin can be disabled when not in use. This signal is referred
to AGND.
OrFET Gate Drive Output. This output is open drain. This signal is referred to AGND.
Rev. PrA | Page 3 of 8


3Pages


ADP1043 電子部品, 半導体
ADP1043
NOTES
www.DataSheet4U.com
Preliminary Technical Data
Rev. PrA | Page 6 of 8

6 Page



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