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DPA423G-TL Datasheet

  • DPA423G-TL

  • Highly Integrated DC-DC Converter ICs for Distributed Power ...

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  • POWERINT

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DPA423-426
DPA-Switch
鈩?/div>
Family
Highly Integrated DC-DC Converter ICs
for Distributed Power Architectures
Product Highlights
Highly Integrated Solution
鈥?Eliminates 20-50 external components鈥搒aves space, cost
鈥?Integrates 220 V high frequency MOSFET, PWM control
鈥?Lower cost plastic DIP surface mount (G package) and
through-hole (P package) options for designs
鈮?5
W
Superior Performance and Flexibility
鈥?Eliminates all external current sensing circuitry
鈥?Built-in auto-restart for output overload/open loop protection
鈥?Pin selectable 300/400 kHz fixed frequency
鈥?Wide input (line) voltage range: 16-75 VDC
鈥?Source connected tab reduces EMI
鈥?Line under-voltage (UV) detection: meets ETSI standards
鈥?Line overvoltage (OV) shutdown protection
鈥?Low cost synchronous rectification: line UV/OV shut down
limits gate drive voltage range from transformer winding
鈥?Fully integrated soft-start for minimum stress/overshoot
鈥?Externally programmable current limit
鈥?Supports forward or flyback topology
鈥?Cycle skipping: regulation to zero load without pre-load
鈥?Hysteretic thermal shutdown for automatic fault recovery
VO
SENSE
CIRCUIT
DPA-Switch
VIN
RESET/
CLAMP
CIRCUIT
D
L
CONTROL
C
S
X
F
PI-2770-032002
Figure 1. Typical Forward Converter Application.
OUTPUT POWER TABLE
36-75 VDC INPUT RANGE (FORWARD)
2,4
Total Device
Dissipation
3
0.5 W
PRODUCT
4
1 W 2.5 W
4W
6W
Max
Power
Output
1
EcoSmart
-
Energy Efficient
鈥?Extremely low consumption at no load
鈥?Cycle skipping at light load for high standby efficiency
Applications
鈥?Telco central office equipment: xDSL, ISDN, PABX, etc.
鈥?Distributed power architectures (24 V/48 V bus, etc.)
鈥?Digital feature phones, VoIP phones, PoE
鈥?Industrial controls (24 V/48 V)
廬
DPA423
DPA424
DPA425
DPA426
Total Device
3
Dissipation
PRODUCT
4
12 W
16 W
23 W
25 W
16 W -
-
-
23 W 35 W
-
-
32 W 50 W 62 W
-
35 W 55 W 70 W 83 W
18 W
35 W
70 W
100 W
36-75 VDC INPUT RANGE (FLYBACK)
2
0.5 W
0.75 W
1W
Max
1.5 W Power
Output
1
DPA423
DPA424
DPA425
9W
13 W
-
-
10 W 14.5 W 18 W 24 W
-
5
-
5
-
5
25.5 W
13 W
26 W
52 W
Description
The
DPA-Switch
IC family introduces a highly integrated
solution for DC-DC conversion applications in the 16-75 VDC
input range.
DPA-Switch
uses the same proven topology as
TOPSwitch,
cost
effectively integrating the high voltage power MOSFET, PWM
control, fault protection and other control circuitry onto a single
CMOS chip. High performance features are enabled with three
user configurable pins.
Table 1.
Notes:
1.
Maximum output power is limited by device internal
current limit.
2.
See Applications Considerations section for complete
description of assumptions and for output powers with other input voltage
ranges.
3.
For device dissipation of 1.5 W or below, use P or G packages.
Device dissipation above 1.5 W is possible only with R package.
4.
See
Part Ordering Information.
5.
Due to higher switching losses, the DPA425
may not deliver additional power compared to a smaller device.
The following transparent or built-in features are also provided:
soft-start, cycle skipping down to zero load and hysteretic
thermal shutdown. In addition, all critical parameters (i.e.
current limit, frequency, PWM gain) have tight temperature
and absolute tolerance, to simplify design and optimize system
cost.
January 2004

DPA423G-TL 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 專用型

  • DPA-Switch®

  • 轉(zhuǎn)換器，以太網(wǎng)供電和電信應用

  • 16 V ~ 75 V

  • 1

  • 220V

  • -40°C ~ 125°C

  • 表面貼裝

  • 8-SMD，鷗翼型

  • 8-SMD

  • 帶卷 (TR)

  • 596-1195-ND - KIT REF DES DPA 6.6W DC-DC CONV596-1009-ND - KIT DESIGN ACCELERATOR DC-DC596-1007-ND - KIT DESIGN ACCELERATOR POE CONV

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