- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385006 > TOP224Y (POWER INTEGRATIONS INC) Three-terminal Off-line PWM Switch PDF資料下載
參數(shù)資料
| 型號： | TOP224Y |
| 廠商： | POWER INTEGRATIONS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Three-terminal Off-line PWM Switch |
| 中文描述： | 1.65 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, PSFM3 |
| 封裝： | TO-220, 3 PIN |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 472K |
| 代理商： | TOP224Y |
TOP221-227
D
7/01
3
TOPSwitch-II
Family Functional Description
TOPSwitch
is a self biased and protected linear control current-
to-duty cycle converter with an open drain output. High
efficiency is achieved through the use of CMOS and integration
of the maximum number of functions possible. CMOS process
significantly reduces bias currents as compared to bipolar or
discrete solutions. Integration eliminates external power
resistors used for current sensing and/or supplying initial start-
up bias current.
During normal operation, the duty cycle of the internal output
MOSFET decreases linearly with increasing CONTROL pin
current as shown in Figure 4. To implement all the required
control, bias, and protection functions, the DRAIN and
CONTROL pins each perform several functions as described
below. Refer to Figure 2 for a block diagram and to Figure 6 for
timing and voltage waveforms of the
TOPSwitch
integrated
circuit.
PI-2040-050197
DMAX
DMIN
D
IC (mA)
2.0
6.0
Slope = PWM Gain
IB
ICD1
Auto-restart
Figure 4. Relationship of Duty Cycle to CONTROL Pin Current.
DRAIN
0
VIN
VC
0
4.7 V
5.7 V
8 Cycles
95%
5%
Off
Switching
Switching
Off
IC
Charging CT
ICD1
Discharging CT
ICD2
Discharging CT
IC
Charging CT
Off
PI-1956-092496
DRAIN
0
VIN
VC
0
4.7 V
5.7 V
Off
Switching
(b)
(a)
C
T
is the total external capacitance
connected to the CONTROL pin
Figure 5. Start-up Waveforms for (a) Normal Operation and (b) Auto-restart.
相關PDF資料 |
PDF描述 |
|---|---|
| TOP225Y | Three-terminal Off-line PWM Switch |
| TOP242 | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| TOPP244R | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| TOP249R | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| TOP249Y | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TOP224YN | 功能描述:交流/直流開關轉換器 45W 85-265 VAC 75W100/115/230 VAC 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 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TOP225Y | 功能描述:交流/直流開關轉換器 60W 85-265 VAC 100W100/115/230 VAC 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 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TOP225YN | 功能描述:交流/直流開關轉換器 60W 85-265 VAC 100W100/115/230 VAC 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 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TOP226Y | 功能描述:交流/直流開關轉換器 75W 85-265 VAC 125W100/115/230 VAC 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 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TOP226YN | 功能描述:交流/直流開關轉換器 75W 85-265 VAC 125W100/115/230 VAC 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 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復。