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DPA424G-TL

Description
IC conv DC-DC dpa switch 8smd
CategoryPower/power management    The power supply circuit   
File Size1MB,20 Pages
ManufacturerPower Integrations
Websitehttps://www.powerint.cn
Environmental Compliance
Download Datasheet Parametric Compare View All

DPA424G-TL Overview

IC conv DC-DC dpa switch 8smd

DPA424G-TL Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?conform to
MakerPower Integrations
Parts packaging codeDIP
package instructionSOP, GWDIP8,.4
Contacts8
Reach Compliance Codecompli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage75 V
Minimum input voltage16 V
Nominal input voltage35 V
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length9.575 mm
Number of functions1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current3.5 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeGWDIP8,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)225
Certification statusNot Qualified
Maximum seat height3.98 mm
surface mountYES
Switch configurationSINGLE
Maximum switching frequency425 kHz
technologyCMOS
Temperature levelAUTOMOTIVE
Terminal surfaceTIN LEAD
Terminal formGULL WING
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width6.35 mm
DPA-Switch
DC-DC Forward
Converter Design Guide
Application Note AN-31
Introduction
The single-ended forward converter topology is usually the
best solution for DC-DC applications in industrial controls,
Telecom central office equipment, digital feature phones, and
systems that use distributed power architectures.
The feature set of
DPA-Switch
offers the following advantages
in DC-DC single-ended forward converter designs:
• Low component count
• High efficiency (typically >91% with synchronous
rectification)
• Built in soft-start to minimize stress and overshoot
• Built in accurate line under-voltage detection
• Built-in accurate line overvoltage shutdown protection
• Built in adjustable current limit
• Built-in overload and open loop fault protection
• Built-in thermal shutdown
• Programmable duty cycle reduction to limit duty cycle
excursion at high line and transient load conditions
• Very good light-load efficiency
• Selectable 300 kHz or 400 kHz operation
• Lossless integrated cycle-by-cycle current limit
The example circuits in this design guide illustrate the use of
these and other features of
DPA-Switch.
Scope
This document gives guidance for the design of a single-
ended forward converter with
DPA-Switch
in applications
that require a single output voltage. It is intended for systems
engineers and circuit designers who wish to become familiar
with the capabilities and requirements of
DPA-Switch
in
DC-DC applications. This application note provides background
material that will assist users of the
DPA-Switch
DC-DC forward
converter design utility that is included in the software design
tool,
PI Expert.
Subsequent application notes will provide
comprehensive procedures for designs of greater complexity.
Designers are advised to check Power Integrationsʼ website at
www.powerint.com
for the latest application information and
design tools.
Snubber
Power
Transformer
Output
Inductor
+
C
CLAMP
Bias
Voltage
Output
Capacitor
+
V
O
+
DC
INPUT
R
UVLO
Drain
Clamp
DPA-Switch
D
L
CONTROL
TL431 with
Frequency
Compensation
FEEDBACK CIRCUIT
R
FC
C
FC
Input
Return
PI-2873-062204
U1
C
S
F
C
BYPASS
Figure 1. Typical Configuration of DPA-Swtich in a Single-Ended DC-DC Forward Converter with One Output.
July 2004

DPA424G-TL Related Products

DPA424G-TL DPA423G-TL DPA424G
Description IC conv DC-DC dpa switch 8smd IC conv DC-DC dpa switch 8smd IC conv DC-DC dpa switch 8smd
Is it lead-free? Contains lead Contains lead Contains lead
Is it Rohs certified? conform to conform to conform to
Maker Power Integrations Power Integrations Power Integrations
Parts packaging code DIP DIP DIP
package instruction SOP, GWDIP8,.4 SOP, GWDIP8,.4 SOP, GWDIP8,.4
Contacts 8 8 8
Reach Compliance Code compli compli compli
ECCN code EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
control mode VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 75 V 75 V 75 V
Minimum input voltage 16 V 16 V 16 V
Nominal input voltage 35 V 35 V 35 V
JESD-30 code R-PDSO-G8 R-PDSO-G8 R-PDSO-G8
JESD-609 code e0 e0 e0
length 9.575 mm 9.575 mm 9.575 mm
Number of functions 1 1 1
Number of terminals 8 8 8
Maximum operating temperature 125 °C 125 °C 125 °C
Minimum operating temperature -40 °C -40 °C -40 °C
Maximum output current 3.5 A 1.75 A 3.5 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP SOP
Encapsulate equivalent code GWDIP8,.4 GWDIP8,.4 GWDIP8,.4
Package shape RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 225 225 225
Certification status Not Qualified Not Qualified Not Qualified
Maximum seat height 3.98 mm 3.98 mm 3.98 mm
surface mount YES YES YES
Switch configuration SINGLE SINGLE SINGLE
Maximum switching frequency 425 kHz 425 kHz 425 kHz
technology CMOS CMOS CMOS
Temperature level AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal surface TIN LEAD TIN LEAD TIN LEAD
Terminal form GULL WING GULL WING GULL WING
Terminal pitch 2.54 mm 2.54 mm 2.54 mm
Terminal location DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 30 30
width 6.35 mm 6.35 mm 6.35 mm
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