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參數(shù)資料
| 型號(hào)： | NCP1215ADR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low Cost Variable OFF Time Switched Mode Power Supply Controller |
| 中文描述： | SWITCHING CONTROLLER, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 159K |
| 代理商： | NCP1215ADR2 |
Semiconductor Components Industries, LLC, 2005
September, 2005 Rev. 2
1
Publication Order Number:
NCP1215A/D
NCP1215A
Low Cost Variable OFF
Time Switched Mode Power
Supply Controller
The NCP1215A is a controller for low power offline flyback
Switched Mode Power Supplies (SMPS) featuring low size, weight
and cost constraints together with a good low standby power
performance. The operating principle uses switching frequency
reduction at light load by increasing the OFF Time. Also, when OFF
Time expands, the peak current is gradually reduced down to
approximately 1/4 of the maximum peak current to prevent from
exciting the transformer mechanical resonances. The risk of acoustic
noise is thus greatly diminished while keeping good standby power
performance.
A low power internal supply block also ensures very low current
consumption at startup without hampering the standby power
performance.
A special primary current sensing technique minimizes the impact
of SMPS switching on control IC operation. The choice of peak
voltage across the current sense resistor allows dissipation to be
further reduced. The negative current sensing technique offers
advantages over a traditional approach by avoiding the voltage drop
incurred by traditional MOSFET source sensing. Thus, the IC drive
capability is greatly improved.
Finally, the bulk input ripple ensures a natural frequency dithering
which smooths the EMI signature.
Features
Variable OFF Time Control Method
Very Low Current Consumption at Startup
Natural Frequency Dithering for Improved EMI Signature
Current Mode Control Operation
Peak Current Compression Reduces Transformer Noise
Programmable Current Sense Resistor Peak Voltage
Undervoltage Lockout
PbFree Packages are Available
Typical Applications
Auxiliary Power Supply
Standby Power Supply
ACDC Adapter
Offline Battery Charger
MARKING
DIAGRAM
FAC
A
L
Y
W
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbFree Package
http://onsemi.com
1
8
SOIC8
D SUFFIX
CASE 751
1215A
ALYW
1
8
1
6
TSOP6
(SOT236, SC596)
SN SUFFIX
CASE 318G
1
6
1
8
5
3
4
(Top View)
FB
CS
NC
PIN CONNECTIONS
7
6
2
NC
CT
GND
Gate
V
CC
SOIC8
1
3
FB
CS
2
GND
CT
4
Gate
6
(Top View)
5
V
CC
TSOP6
FACAYW
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
(Note: Microdot may be in either location)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1215ADR2G | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 Low Cost Variable Off SMPS RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| NCP1215ASNT1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Low Cost Variable 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| NCP1215ASNT1G | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Low Cost Variable Off SMPS 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| NCP1215-D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NCP1215 Datasheet |
| NCP1215DR2 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 ANA VARIABL OFF TIME SMPS 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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