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參數(shù)資料
| 型號： | NCP1561 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Push-Pull PWM Controller for 48 V Telecom Systems |
| 中文描述： | 推挽為48伏通信系統(tǒng)PWM控制器 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 250K |
| 代理商： | NCP1561 |
Semiconductor Components Industries, LLC, 2004
August, 2004 Rev. 3
1
Publication Order Number
NCP1561/D
NCP1561
PushPull PWM Controller
for 48 V Telecom Systems
The NCP1561 PushPull PWM controller contains all the features
and flexibility needed to implement high efficiency dcdc converters
using voltage or currentmode control. This device can be configured
in any dual ended topology such as pushpull or halfbridge. It can
also be used for forward topologies requiring a 50% maximum duty
cycle. This device is ideally suited for 48 V telecom, 42 V automotive
systems and 12 V input applications.
The NCP1561 cost effectively reduce system part count by
incorporating a high voltage startup regulator, line undervoltage
detector, single resistor oscillator setting, dual mode overcurrent
protection, softstart and single resistor feedforward ramp generator.
The oscillator frequency can be adjusted up to 250 kHz.
Features
Internal High Voltage Startup Regulator
Minimum Operating Voltage of 21.5 V
Voltage or CurrentMode Control Capability
Single Resistor Oscillator Frequency Setting
Adjustable Frequency up to 250 kHz
Fast Line Feedforward
Line Undervoltage Lockout
Dual Mode Overcurrent Protection
Programmable Maximum Duty Cycle Control
Maximum Duty Cycle Proportional to Line Voltage
Programmable SoftStart
Precision 5.0 V Reference
Typical Applications
48 V Telecommunication Power Converters
Industrial Power Converters
42 V Automotive Systems
Figure 1. HalfBridge Block Diagram
Vin
TX1
M1
Lout
Cout
NCP1561
+
M
Opto
Error
Amplifier
Driver
High Side
Driver
M3
OUT1
OUT1
OUT2
Startup
Feedforward
OUT2
M4
C1
C2
Device
Package
Shipping
ORDERING INFORMATION
NCP1561DR2
SO16
2500 Units/Reel
NCP1561= Device Code
A
= Assembly Location
WL
= Wafer Lot
Y
= Year
WW
= Work Week
MARKING
DIAGRAM
16
SO16
D SUFFIX
CASE 751B
NCP1561
AWLYWW
1
1
16
PIN ASSIGNMENTS
V
in
UV
V
AUX
OUT1
RAMP_OUT
GND
OUT2
FF
CS
RAMP_IN
V
REF
V
EA
SS
CSKIP
R
T
DC
MAX
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
http://onsemi.com
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| NCP1561DR2 | Push-Pull PWM Controller for 48 V Telecom Systems |
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| NCP1571D | Low Voltage Synchronous Buck Controller |
| NCP1571DR2 | Low Voltage Synchronous Buck Controller |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1561DR2 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual Output PWM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| NCP1561DR2G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual Output PWM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| NCP1562-100WEVBG | 功能描述:電源管理IC開發(fā)工具 100 W 48 V TELECOM BRICK RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| NCP1562-100WGEVB | 制造商:ON Semiconductor 功能描述:100W 48 V TELECOM BRICK - Bulk 制造商:ON Semiconductor 功能描述:BOARD EVAL FOR NCP1562-100W |
| NCP1562A WAF | 制造商:ON Semiconductor 功能描述: |
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