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| 型号： | TOP221GN-TL |
| 厂商： | Power Integrations |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC OFFLINE SWIT PWM OCP HV 8SMD |
| 标准包装： | 1 |
| 系列： | TOPSwitch®-II |
| 输出隔离： | 隔离 |
| 频率范围： | 90kHz ~ 110kHz |
| 输出电压： | 700V |
| 功率（瓦特）： | 9W |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 8-SMD，鸥翼型 |
| 供应商设备封装： | 8-SMD |
| 包装： | 标准包装 |
| 其它名称： | 596-1058-6 |
TOP221-227
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
Auto-restart
efficiency is achieved through the use of CMOS and integration
of the maximum number of functions possible. CMOS process
DMAX
IB
Slope = PWM Gain
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
DMIN
ICD1 2.0
IC (mA)
6.0
PI-2040-050197
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.
IC
Figure 4. Relationship of Duty Cycle to CONTROL Pin Current.
5.7 V
Charging CT
VC
4.7 V
0
DRAIN
VIN
Off
0
Switching
(a)
ICD2
5.7 V
IC
Charging CT
ICD1
Discharging CT
Discharging CT
VC
4.7 V
0
8 Cycles
95%
5%
DRAIN
VIN
Off
Off
Off
0
Switching
Switching
(b)
C T is the total external capacitance
connected to the CONTROL pin
PI-1956-092496
Figure 5. Start-up Waveforms for (a) Normal Operation and (b) Auto-restart.
D
7/01
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TOP221G-TL | 功能描述:交流/直流开关转换器 6W 85-265 VAC 9W100/115/230 VAC RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| TOP221P | 功能描述:交流/直流开关转换器 6W 85-265 VAC 9W100/115/230 VAC RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| TOP221PN | 功能描述:交流/直流开关转换器 6W 85-265 VAC 9W100/115/230 VAC RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| TOP221Y | 功能描述:交流/直流开关转换器 7W 85-265 VAC 12W100/115/230 VAC RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| TOP221YN | 功能描述:交流/直流开关转换器 7W 85-265 VAC 12W100/115/230 VAC RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
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