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參數資料
| 型號： | DPA423P |
| 廠商： | POWER INTEGRATIONS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.75 A SWITCHING REGULATOR, 425 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | PLASTIC, MS-001AB, DIP-8 |
| 文件頁數： | 1/36頁 |
| 文件大?。?/td> | 705K |
| 代理商： | DPA423P |
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DPA422-426
DPA-Switch Family
www.powerint.com
December 2007
Highly Integrated DC-DC Converter ICs for
Power over Ethernet & Telecom Applications
Output Power Table
36-75 VDC Input Range (Forward)2
Total Device
Dissipation3
Product4
0.5 W
1 W
2.5 W
4 W
6 W
Max
Power
Output1
DPA4227
7.5 W
10 W
-
10 W
DPA423
12 W
16 W
-
18 W
DPA424
16 W
23 W
35 W
-
35 W
DPA425
23 W
32 W
50 W
62 W
-
70 W
DPA4265
25 W
35 W
55 W
70 W
83 W
100 W
36-75 VDC Input Range (Flyback)2
Total Device
Dissipation3
Product4
0.5 W
0.75 W
1 W
1.5 W
Max
Power
Output1
DPA422
6.5 W
9.0 W
-
9.0 W
DPA423
9 W
13 W
-
13 W
DPA424
10 W
14.5 W
18 W
24 W
26 W
DPA425
-6
25.5 W
52 W
Table 1.
Output Power Table.
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 with R package.
4. Packages: P: DIP-8, G: SMD-8, R: TO-263-7C. For lead-free package options,
see Part Ordering Information.
5. Available in R package only.
6. Due to higher switching losses, the DPA425 may not deliver additional power
compared to a smaller device.
7. Available in P and G package only.
Product Highlights
Highly Integrated Solution
Eliminates up to 50 external components–saves space, cost
Integrates 220 V high frequency MOSFET, PWM control
Lower cost plastic DIP surface mount (G package) and
through-hole (P package) options for designs ≤35 W
Thermally efcient TO-263-7C (R package) option for high
power applications
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 xed frequency
Wide input (line) voltage range: 16-75 VDC
Externally programmable current limit
Source connected tab reduces EMI
Line under-voltage (UV) detection: meets ETSI standards
Line overvoltage (OV) shutdown protection
UV/OV limits gate drive voltage for synchronous rectication
Fully integrated soft-start for minimum stress/overshoot
Supports forward or yback topology
Cycle skipping: regulation to zero load without pre-load
Hysteretic thermal shutdown for automatic fault recovery
RoHS compliant P and G package options
EcoSmart
– Energy Efcient
Extremely low consumption at no load
Cycle skipping at light load for high standby efciency
Applications
PoE applications, VoIP phones, WLAN, security cameras
Telco central ofce equipment: xDSL, ISDN, PABX
Distributed power architectures (24 V/48 V bus)
Industrial controls
Description
The DPA-Switch IC family is a highly integrated solution for
DC-DC conversion applications with 16-75 VDC input.
DPA-Switch uses the same proven topology as TOPSwitch,
cost effectively integrating a power MOSFET, PWM control, fault
protection and other control circuitry onto a single CMOS chip.
High performance features are enabled with three user
congurable pins. Hysteretic thermal shutdown is also provided.
In addition, all critical parameters (i.e. current limit, frequency,
PWM gain) have tight temperature and absolute tolerance, to
Figure 1.
Typical Forward Converter Application.
PI-2770-032002
D
S
C
DPA-Switch
VIN
VO
F
X
L
CONTROL
SENSE
CIRCUIT
RESET/
CLAMP
CIRCUIT
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DPA423PN | 功能描述:開關變換器、穩(wěn)壓器與控制器 13W 36-75V DCIN RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| DPA423P-TL | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:Highly Integrated DC-DC Converter ICs for Distributed Power Architectures |
| DPA423R | 功能描述:開關變換器、穩(wěn)壓器與控制器 18W 36-75V DCIN RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| DPA423R-TL | 功能描述:開關變換器、穩(wěn)壓器與控制器 18W 36-75V DCIN RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| DPA423SN | 功能描述:開關變換器、穩(wěn)壓器與控制器 18W 36-75V DCIN RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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