DPA426 Power Integrations, DPA426 Datasheet
DPA426
Manufacturer Part Number
DPA426
Description
(DPA423 - DPA426) Highly Integrated DC-DC Converter ICs for Distributed Power Architectures
Manufacturer
Power Integrations
Datasheet
1.DPA426.pdf
(36 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DPA426R
Manufacturer:
POWER
Quantity:
15 000
Part Number:
DPA426R
Manufacturer:
POWER
Quantity:
20 000
Company:
Part Number:
DPA426R-TL
Manufacturer:
POWER
Quantity:
16 700
Part Number:
DPA426R-TL
Manufacturer:
POWER
Quantity:
20 000
Part Number:
DPA426S
Manufacturer:
POWER
Quantity:
20 000
Company:
Part Number:
DPA426SN
Manufacturer:
POWER
Quantity:
15 000
Part Number:
DPA426SN
Manufacturer:
POWER
Quantity:
20 000
Part Number:
DPA426SN-TL
Manufacturer:
POWER
Quantity:
20 000
DPA423-426
DPA-Switch Family
Highly Integrated DC-DC Converter ICs
for Distributed Power Architectures
Highly Integrated Solution
• Eliminates 20-50 external components–saves space, cost
• Integrates 220 V high frequency MOSFET, PWM control
• Lower cost plastic DIP surface mount (G package) and
Superior Performance and Flexibility
• Eliminates all external current sensing circuitry
• Built-in auto-restart for output overload/open loop protection
• Pin selectable 300/400 kHz fixed frequency
• Wide input (line) voltage range: 16-75 VDC
• Source connected tab reduces EMI
• Line under-voltage (UV) detection: meets ETSI standards
• Line overvoltage (OV) shutdown protection
• Low cost synchronous rectification: line UV/OV shut down
• Fully integrated soft-start for minimum stress/overshoot
• Externally programmable current limit
• Supports forward or flyback topology
• Cycle skipping: regulation to zero load without pre-load
• Hysteretic thermal shutdown for automatic fault recovery
EcoSmart - Energy Efficient
• Extremely low consumption at no load
• Cycle skipping at light load for high standby efficiency
Applications
• Telco central office equipment: xDSL, ISDN, PABX, etc.
• Distributed power architectures (24 V/48 V bus, etc.)
• Digital feature phones, VoIP phones, PoE
• Industrial controls (24 V/48 V)
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.
through-hole (P package) options for designs ≤35 W
limits gate drive voltage range from transformer winding
®
Product Highlights
™
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.
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.
Figure 1. Typical Forward Converter Application.
Total Device
V IN
Total Device
PRODUCT
PRODUCT
Dissipation
Dissipation
DPA423
DPA424
DPA425
DPA426
DPA423
DPA424
DPA425
CIRCUIT
RESET/
CLAMP
36-75 VDC INPUT RANGE (FORWARD)
DPA-Switch
36-75 VDC INPUT RANGE (FLYBACK)
4
4
OUTPUT POWER TABLE
3
3
0.5 W 1 W 2.5 W
12 W 16 W
16 W 23 W 35 W
23 W 32 W 50 W 62 W
25 W 35 W 55 W 70 W 83 W 100 W
10 W 14.5 W 18 W
0.5 W
9 W
D
S
-
5
CONTROL
X
0.75 W
13 W
L
-
5
F
C
-
1 W
-
-
5
4 W
-
-
25.5 W 52 W
24 W
1.5 W
6 W
-
CIRCUIT
-
-
-
SENSE
January 2004
PI-2770-032002
2,4
2
Output
Output
Power
Power
18 W
35 W
70 W
13 W
26 W
Max
Max
V O
1
1
Related parts for DPA426
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
SOP-16
Manufacturer:
Power Integrations
Datasheet:
Part Number:
Description:
DIP8
Manufacturer:
Power Integrations
Datasheet:
Part Number:
Description:
TO-263
Manufacturer:
Power Integrations
Datasheet:
Part Number:
Description:
TO-263
Manufacturer:
Power Integrations
Datasheet:
Part Number:
Description:
Manufacturer:
Power Integrations
Datasheet: