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参数资料
| 型号： | TOP221G-TL |
| 厂商： | Power Integrations |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC OFFLINE SWIT PWM OCP HV 8SMD |
| 标准包装： | 1,000 |
| 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： | 带卷 (TR) |
TOP221-227
D2
UF5401
L1
3.3 μ H
+5 V
+
R3
47 k ?
C1
2.2 nF
1 kV
C2
330 μ F
10 V
VR1
C3
100 μ F
10 V
RTN
D1
UF4005
D3
R2
100 ?
Wide-Range
DC Input
T1
1N4148
R1
10 ?
-
D
S
U1
TOP221P
CONTROL
TOPSwitch-II
C
C4
100 μ F
16 V
C5
47 μ F
10 V
U2
PC817A
+
12 V Non-Isolated
-
PI-2115-040401
Figure 7. Schematic Diagram of a 4 W TOPSwitch-II Standby Power Supply using an 8 lead PDIP.
Application Examples
Following are just two of the many possible TOPSwitch
implementations. Refer to the Data Book and Design Guide
for additional examples.
4 W Standby Supply using 8 Lead PDIP
Figure 7 shows a 4 W standby supply. This supply is used in
appliances where certain standby functions (e.g. real time
clock, remote control port) must be kept active even while the
main power supply is turned off.
vary from 100 V to 380 V DC which corresponds to the full
universal AC input range. The TOP221 is packaged in an 8 pin
power DIP package.
The output voltage (5 V) is directly sensed by the Zener diode
(VR1) and the optocoupler (U2). The output voltage is determined
by the sum of the Zener voltage and the voltage drop across the
LED of the optocoupler (the voltage drop across R1 is negligible).
The output transistor of the optocoupler drives the CONTROL
pin of the TOP221. C5 bypasses the CONTROL pin and provides
control loop compensation and sets the auto-restart frequency.
The 5 V secondary is used to supply the standby function and
the 12 V non-isolated output is used to supply power for the
PWM controller of the main power supply and other primary
side functions.
For this application the input rectifiers and input filter are sized
for the main supply and are not shown. The input DC rail may
The transformer ’ s leakage inductance voltage spikes are snubbed
by R3 and C1 through diode D1. The bias winding is rectified
and filtered by D3 and C4 providing a non-isolated 12 V output
which is also used to bias the collector of the optocoupler ’ s
output transistor. The isolated 5 V output winding is rectified by
D2 and filtered by C2, L1 and C3.
6
D
7/01
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| TOP222G | 功能描述:交流/直流开关转换器 10W 85-265 VAC 15W100/115/230 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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