DataSheet8.cn


PDF ( 数据手册 , 数据表 ) ADP1043A

零件编号 ADP1043A
描述 Digital Controller
制造商 Analog Devices
LOGO Analog Devices LOGO 


1 Page

No Preview Available !

ADP1043A 数据手册, 描述, 功能
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
Current sharing
Integrated programmable loop filter
I2C interface
Extensive fault detection and protection
Extensive programming
Fast calibration
EEPROM
Standalone or microcontroller control
APPLICATIONS
AC-to-DC power supplies
Isolated dc-to-dc power supplies
Redundant power supplies
Parallel power supplies
Server, storage, network, and communications infrastructure
Digital Controller for Isolated
Power Supply Applications
ADP1043A
GENERAL DESCRIPTION
The ADP1043A is a secondary side power supply controller IC
designed to provide all the functions that are typically needed in
an ac-to-dc or isolated dc-to-dc control application.
The ADP1043A 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, pulse-width modulation (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, undervoltage lockout
(UVLO), and overvoltage protection (OVP).
The built-in EEPROM provides extensive programming of the
integrated loop filter, PWM signal timing, inrush current, and
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 provides access to the many moni-
toring and system test functions.
The ADP1043A is available in a 32-lead LFCSP and operates
from a single 3.3 V supply.
PFC
www.DataSheet4U.com
AC
INPUT
DRIVER
TYPICAL APPLICATION CIRCUIT
ADuM1410
DRIVER
DRIVER
SR1 SR2 ACSNS
CS1
PGND CS2– CS2+
VS1 GATE VS2
VS3+
OUTA
OUTB
OUTC
OUTD
OUTAUX
RES ADD RTD VCORE FLAGIN PSON PGOOD2 PGOOD1 SDA SCL
VS3–
SHAREo
SHAREi
VDD DGND AGND
VDD
Figure 1.
MICROCONTROLLER
LOAD
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
©2009 Analog Devices, Inc. All rights reserved.







ADP1043A pdf, 数据表
ADP1043A
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage (Continuous) VDD
Digital Pins
VS3− to PGND, AGND, DGND
RTD, VS1 to AGND
VS2, VS3+, ADD to AGND
Operating Temperature Range
Storage Temperature Range
Junction Temperature
Peak Solder Reflow Temperature
SnPb Assemblies (10 sec to 30 sec)
RoHS-Compliant Assemblies
(20 sec to 40 sec)
ESD Charged Device Model
ESD Human Body Model
Rating
4.2 V
−0.3 V to VDD + 0.3 V
−0.3 V to +0.3 V
2.5 V
−0.3 V to VDD + 0.3 V
−40°C to +85°C
−65°C to +150°C
150°C
240°C
260°C
1.5 kV
3.5 kV
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3. Thermal Resistance
Package Type
θJA
32-Lead LFCSP
44.4
θJC
6.4
Unit
°C/W
SOLDERING
It is important to follow the correct guidelines when laying out
the PCB footprint for the ADP1043A and when soldering the
part onto the PCB. The AN-772 Application Note discusses this
topic in detail (see www.analog.com).
ESD CAUTION
www.DataSheet4U.com
Rev. 0 | Page 8 of 72







ADP1043A equivalent, schematic
ADP1043A
Accurate OrFET control also uses the reverse voltage across the
CS2+ and CS2− pins to disable the OrFET (see Figure 16). If the
voltage difference between CS2+ and CS2− is greater than 0 mV,
the OrFET is disabled. The accurate OrFET circuit is more accu-
rate, but it is slower than the fast OrFET circuit.
The OrFET turn-on circuit looks at the voltage difference
between VS1 and VS2 (see Figure 16). When the forward
voltage drop from VS1 to VS2 is greater than the program-
mable OrFET enable threshold (Register 0x30[5:4]), the
OrFET is enabled. The OrFET enable threshold can be set to
−0.5%, 0%, 1%, or 2% of the nominal output voltage (12 V).
Recommended Setup
In a 12 V application, while in normal operating mode
When 12 V < VOUT < OVP, use the accurate OrFET control
circuit to turn off the OrFET.
When VOUT > OVP, use load OVP to turn off the OrFET.
In a 12 V application, while in light load mode
When 12 V < VOUT < OVP, use ACSNS to turn off the
OrFET.
When VOUT > OVP, use load OVP to turn off the OrFET.
In a 12 V application, when an internal short circuit occurs,
follow this procedure:
1. Use fast OrFET to turn off the OrFET.
2. Use CS1 OCP or VS1 UVP to shut down the unit and
restart it.
www.DataSheet4U.com
RSENSE
10k
10k
CS2–
CS2+
11k
1k
VS1 VS2
12V
VOUT
DRIVER
11k
1k
GATE
OrFET
ENABLE
OrFET ENABLE
THRESHOLD
REG 0x30[5:4]
DIFFERENTIAL
TO SINGLE-
ENDED FAST OrFET
FAST OrFET
DEBOUNCE
COMPARATOR REG 0x30[1]
FAST OrFET
BYPASS
REG 0x30[0]
SQ
R
OrFET
DISABLE
FAST OrFET
THRESHOLD
REG 0x30[3:2]
100µA
CS2 ADC
DIFFERENTIAL
TO SINGLE-
ENDED
ACCURATE
OrFET
DISABLE
FLAG
ACCURATE OrFET
THRESHOLD
REG 0x30[7:6]
FLAGS
100µA
CS2 VALUE
REGISTER
REG 0x18[15:4]
Figure 16. OrFET Control Circuit Internal Detailed Diagram
Rev. 0 | Page 16 of 72










页数 70 页
下载[ ADP1043A.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
ADP1043Digital ControllerAnalog Devices
Analog Devices
ADP1043ADigital ControllerAnalog Devices
Analog Devices

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap